Reproductive Endocrinology

TOPLINE:

Women with polycystic ovary syndrome (PCOS) have higher odds of some eating disorders, including bulimia nervosa, binge eating disorder, and disordered eating, regardless of weight.

METHODOLOGY:

• A small systematic review and meta-analysis showed increased odds of any eating disorders and disordered eating scores in adult women with PCOS compared with women without PCOS.
• As part of the 2023 update of the International Evidence-based Guideline for the Assessment of and Management of PCOS, the same researchers updated and expanded their analysis to include adolescents and specific eating disorders and to evaluate the effect of body mass index (BMI) on these risks.
• They included 20 cross-sectional studies involving 28,922 women with PCOS and 258,619 women without PCOS; PCOS was diagnosed by either National Institutes of Health or Rotterdam criteria, as well as by patient self-report or hospital records.
• Eating disorders were screened using a validated disordered eating screening tool or diagnostic criteria from the Diagnostic and Statistical Manual of Mental Disorders.
• The outcomes of interest included the prevalence of any eating disorder, individual eating disorders, disordered eating, and mean disordered eating scores.

TAKEAWAY:

• Women with PCOS had 53% higher odds (odds ratio [OR], 1.53; 95% CI, 1.29-1.82; eight studies) of any eating disorder than control individuals without PCOS.
• The likelihood of bulimia nervosa (OR, 1.34; 95% CI, 1.17-1.54; five studies) and binge eating disorder (OR, 2.09; 95% CI, 1.18-3.72; four studies) was higher in women with PCOS, but no significant association was found for anorexia nervosa.
• The mean disordered eating scores and odds of disordered eating were higher in women with PCOS (standardized mean difference [SMD], 0.52; 95% CI, 0.28-0.77; 13 studies; and OR, 2.84; 95% CI, 1.0-8.04; eight studies; respectively).
• Disordered eating scores were higher in both the normal and higher weight categories (BMI < 25; SMD, 0.36; 95% CI, 0.15-0.58; five studies; and BMI ≥ 25; SMD, 0.68; 95% CI, 0.22-1.13; four studies; respectively).

IN PRACTICE:

“Our findings emphasize the importance of screening women with PCOS for eating disorders before clinicians share any lifestyle advice,” the lead author said in a press release. “The lifestyle modifications we often recommend for women with PCOS — including physical activity, healthy diet, and behavior modifications — could hinder the recovery process for eating disorders.”

SOURCE:

The study was led by Laura G. Cooney, MD, MSCE, University of Wisconsin, Madison, and published online in the Journal of Clinical Endocrinology & Metabolism.

LIMITATIONS:

The included studies were observational in nature, limiting the ability to adjust for potential confounders. The cross-sectional design of the included studies precluded determining whether the diagnosis of PCOS or the symptoms of disordered eating occurred first. Studies from 10 countries were included, but limited data from developing or Asian countries restrict the generalizability of the results.

DISCLOSURES:

This study was conducted to inform recommendations of the 2023 International Evidence-based Guideline in PCOS, which was funded by the Australian National Health and Medical Research Council, Centre for Research Excellence in Polycystic Ovary Syndrome, and other sources. The authors declared no conflicts of interests.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Women with polycystic ovary syndrome (PCOS) have higher odds of some eating disorders, including bulimia nervosa, binge eating disorder, and disordered eating, regardless of weight.

METHODOLOGY:

• A small systematic review and meta-analysis showed increased odds of any eating disorders and disordered eating scores in adult women with PCOS compared with women without PCOS.
• As part of the 2023 update of the International Evidence-based Guideline for the Assessment of and Management of PCOS, the same researchers updated and expanded their analysis to include adolescents and specific eating disorders and to evaluate the effect of body mass index (BMI) on these risks.
• They included 20 cross-sectional studies involving 28,922 women with PCOS and 258,619 women without PCOS; PCOS was diagnosed by either National Institutes of Health or Rotterdam criteria, as well as by patient self-report or hospital records.
• Eating disorders were screened using a validated disordered eating screening tool or diagnostic criteria from the Diagnostic and Statistical Manual of Mental Disorders.
• The outcomes of interest included the prevalence of any eating disorder, individual eating disorders, disordered eating, and mean disordered eating scores.

TAKEAWAY:

• Women with PCOS had 53% higher odds (odds ratio [OR], 1.53; 95% CI, 1.29-1.82; eight studies) of any eating disorder than control individuals without PCOS.
• The likelihood of bulimia nervosa (OR, 1.34; 95% CI, 1.17-1.54; five studies) and binge eating disorder (OR, 2.09; 95% CI, 1.18-3.72; four studies) was higher in women with PCOS, but no significant association was found for anorexia nervosa.
• The mean disordered eating scores and odds of disordered eating were higher in women with PCOS (standardized mean difference [SMD], 0.52; 95% CI, 0.28-0.77; 13 studies; and OR, 2.84; 95% CI, 1.0-8.04; eight studies; respectively).
• Disordered eating scores were higher in both the normal and higher weight categories (BMI < 25; SMD, 0.36; 95% CI, 0.15-0.58; five studies; and BMI ≥ 25; SMD, 0.68; 95% CI, 0.22-1.13; four studies; respectively).

IN PRACTICE:

“Our findings emphasize the importance of screening women with PCOS for eating disorders before clinicians share any lifestyle advice,” the lead author said in a press release. “The lifestyle modifications we often recommend for women with PCOS — including physical activity, healthy diet, and behavior modifications — could hinder the recovery process for eating disorders.”

SOURCE:

The study was led by Laura G. Cooney, MD, MSCE, University of Wisconsin, Madison, and published online in the Journal of Clinical Endocrinology & Metabolism.

LIMITATIONS:

The included studies were observational in nature, limiting the ability to adjust for potential confounders. The cross-sectional design of the included studies precluded determining whether the diagnosis of PCOS or the symptoms of disordered eating occurred first. Studies from 10 countries were included, but limited data from developing or Asian countries restrict the generalizability of the results.

DISCLOSURES:

This study was conducted to inform recommendations of the 2023 International Evidence-based Guideline in PCOS, which was funded by the Australian National Health and Medical Research Council, Centre for Research Excellence in Polycystic Ovary Syndrome, and other sources. The authors declared no conflicts of interests.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Women with polycystic ovary syndrome (PCOS) have higher odds of some eating disorders, including bulimia nervosa, binge eating disorder, and disordered eating, regardless of weight.

METHODOLOGY:

• A small systematic review and meta-analysis showed increased odds of any eating disorders and disordered eating scores in adult women with PCOS compared with women without PCOS.
• As part of the 2023 update of the International Evidence-based Guideline for the Assessment of and Management of PCOS, the same researchers updated and expanded their analysis to include adolescents and specific eating disorders and to evaluate the effect of body mass index (BMI) on these risks.
• They included 20 cross-sectional studies involving 28,922 women with PCOS and 258,619 women without PCOS; PCOS was diagnosed by either National Institutes of Health or Rotterdam criteria, as well as by patient self-report or hospital records.
• Eating disorders were screened using a validated disordered eating screening tool or diagnostic criteria from the Diagnostic and Statistical Manual of Mental Disorders.
• The outcomes of interest included the prevalence of any eating disorder, individual eating disorders, disordered eating, and mean disordered eating scores.

TAKEAWAY:

• Women with PCOS had 53% higher odds (odds ratio [OR], 1.53; 95% CI, 1.29-1.82; eight studies) of any eating disorder than control individuals without PCOS.
• The likelihood of bulimia nervosa (OR, 1.34; 95% CI, 1.17-1.54; five studies) and binge eating disorder (OR, 2.09; 95% CI, 1.18-3.72; four studies) was higher in women with PCOS, but no significant association was found for anorexia nervosa.
• The mean disordered eating scores and odds of disordered eating were higher in women with PCOS (standardized mean difference [SMD], 0.52; 95% CI, 0.28-0.77; 13 studies; and OR, 2.84; 95% CI, 1.0-8.04; eight studies; respectively).
• Disordered eating scores were higher in both the normal and higher weight categories (BMI < 25; SMD, 0.36; 95% CI, 0.15-0.58; five studies; and BMI ≥ 25; SMD, 0.68; 95% CI, 0.22-1.13; four studies; respectively).

IN PRACTICE:

“Our findings emphasize the importance of screening women with PCOS for eating disorders before clinicians share any lifestyle advice,” the lead author said in a press release. “The lifestyle modifications we often recommend for women with PCOS — including physical activity, healthy diet, and behavior modifications — could hinder the recovery process for eating disorders.”

SOURCE:

The study was led by Laura G. Cooney, MD, MSCE, University of Wisconsin, Madison, and published online in the Journal of Clinical Endocrinology & Metabolism.

LIMITATIONS:

The included studies were observational in nature, limiting the ability to adjust for potential confounders. The cross-sectional design of the included studies precluded determining whether the diagnosis of PCOS or the symptoms of disordered eating occurred first. Studies from 10 countries were included, but limited data from developing or Asian countries restrict the generalizability of the results.

DISCLOSURES:

This study was conducted to inform recommendations of the 2023 International Evidence-based Guideline in PCOS, which was funded by the Australian National Health and Medical Research Council, Centre for Research Excellence in Polycystic Ovary Syndrome, and other sources. The authors declared no conflicts of interests.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Young and adult children of mothers with type 1 diabetes are almost half as likely be diagnosed with this condition compared with those with affected fathers, even with a similar genetic risk score. 

METHODOLOGY:

• Individuals with a family history of type 1 diabetes face 8-15 times higher risk for this condition than the general population, with the risk of inheritance from mothers with type 1 diabetes being about half that of fathers with type 1 diabetes; however, it is unclear if the effect continues past childhood and what is responsible for the difference in risk.
• Researchers performed a meta-analysis across five cohort studies involving 11,475 individuals diagnosed with type 1 diabetes aged 0-88 years to evaluate if maternal type 1 diabetes conferred relative protection only to young children.
• They compared the proportion of individuals with type 1 diabetes with affected fathers versus mothers and explored if this comparison was altered by the age at diagnosis and the timing of parental diagnosis relative to the birth of the offspring.
• Lastly, the inherited genetic risk for type 1 diabetes was compared between those with affected mothers versus fathers using a risk score composed of more than 60 different gene variants associated with type 1 diabetes.

TAKEAWAY:

• Individuals with type 1 diabetes were almost twice as likely to have a father with the condition than a mother (odds ratio, 1.79; P < .0001).
• The protective effect of maternal diabetes was seen regardless of whether the individuals were diagnosed with type 1 diabetes before or after age 18 years (P < .0001).
• Maternal diabetes was linked to a lower risk for type 1 diabetes in children only if the mother had type 1 diabetes during pregnancy.
• The genetic risk score for type 1 diabetes was not significantly different between those with affected fathers versus mothers (P = .31).

IN PRACTICE:

“Understanding why having a mother compared with a father with type 1 diabetes offers a relative protection against type 1 diabetes could help us develop new ways to prevent type 1 diabetes, such as treatments that mimic some of the protective elements from mothers,” study author Lowri Allen, MBChB, said in a news release.

SOURCE:

The study was led by Dr. Allen from the Diabetes Research Group, Cardiff University, Cardiff, Wales, and was published as an early release from the annual meeting of the European Association for the Study of Diabetes. 

LIMITATIONS:

This abstract did not discuss any limitations. The number of individuals and parents with type 1 diabetes in the meta-analysis was not disclosed. The baseline risk for type 1 diabetes among individuals with a mother, father, or both or no parent with type 1 diabetes was not disclosed. The number of people with type 1 diabetes under and over age 18 was not disclosed, nor were the numbers of mothers and fathers with type 1 diabetes. The relative risk in individuals having no parent with type 1 diabetes was not disclosed. Moreover, the race and ethnicity of the study populations were not disclosed. 

DISCLOSURES:

The Wellcome Trust supported this study. The authors declared no relevant conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Young and adult children of mothers with type 1 diabetes are almost half as likely be diagnosed with this condition compared with those with affected fathers, even with a similar genetic risk score. 

METHODOLOGY:

• Individuals with a family history of type 1 diabetes face 8-15 times higher risk for this condition than the general population, with the risk of inheritance from mothers with type 1 diabetes being about half that of fathers with type 1 diabetes; however, it is unclear if the effect continues past childhood and what is responsible for the difference in risk.
• Researchers performed a meta-analysis across five cohort studies involving 11,475 individuals diagnosed with type 1 diabetes aged 0-88 years to evaluate if maternal type 1 diabetes conferred relative protection only to young children.
• They compared the proportion of individuals with type 1 diabetes with affected fathers versus mothers and explored if this comparison was altered by the age at diagnosis and the timing of parental diagnosis relative to the birth of the offspring.
• Lastly, the inherited genetic risk for type 1 diabetes was compared between those with affected mothers versus fathers using a risk score composed of more than 60 different gene variants associated with type 1 diabetes.

TAKEAWAY:

• Individuals with type 1 diabetes were almost twice as likely to have a father with the condition than a mother (odds ratio, 1.79; P < .0001).
• The protective effect of maternal diabetes was seen regardless of whether the individuals were diagnosed with type 1 diabetes before or after age 18 years (P < .0001).
• Maternal diabetes was linked to a lower risk for type 1 diabetes in children only if the mother had type 1 diabetes during pregnancy.
• The genetic risk score for type 1 diabetes was not significantly different between those with affected fathers versus mothers (P = .31).

IN PRACTICE:

“Understanding why having a mother compared with a father with type 1 diabetes offers a relative protection against type 1 diabetes could help us develop new ways to prevent type 1 diabetes, such as treatments that mimic some of the protective elements from mothers,” study author Lowri Allen, MBChB, said in a news release.

SOURCE:

The study was led by Dr. Allen from the Diabetes Research Group, Cardiff University, Cardiff, Wales, and was published as an early release from the annual meeting of the European Association for the Study of Diabetes. 

LIMITATIONS:

This abstract did not discuss any limitations. The number of individuals and parents with type 1 diabetes in the meta-analysis was not disclosed. The baseline risk for type 1 diabetes among individuals with a mother, father, or both or no parent with type 1 diabetes was not disclosed. The number of people with type 1 diabetes under and over age 18 was not disclosed, nor were the numbers of mothers and fathers with type 1 diabetes. The relative risk in individuals having no parent with type 1 diabetes was not disclosed. Moreover, the race and ethnicity of the study populations were not disclosed. 

DISCLOSURES:

The Wellcome Trust supported this study. The authors declared no relevant conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Young and adult children of mothers with type 1 diabetes are almost half as likely be diagnosed with this condition compared with those with affected fathers, even with a similar genetic risk score. 

METHODOLOGY:

• Individuals with a family history of type 1 diabetes face 8-15 times higher risk for this condition than the general population, with the risk of inheritance from mothers with type 1 diabetes being about half that of fathers with type 1 diabetes; however, it is unclear if the effect continues past childhood and what is responsible for the difference in risk.
• Researchers performed a meta-analysis across five cohort studies involving 11,475 individuals diagnosed with type 1 diabetes aged 0-88 years to evaluate if maternal type 1 diabetes conferred relative protection only to young children.
• They compared the proportion of individuals with type 1 diabetes with affected fathers versus mothers and explored if this comparison was altered by the age at diagnosis and the timing of parental diagnosis relative to the birth of the offspring.
• Lastly, the inherited genetic risk for type 1 diabetes was compared between those with affected mothers versus fathers using a risk score composed of more than 60 different gene variants associated with type 1 diabetes.

TAKEAWAY:

• Individuals with type 1 diabetes were almost twice as likely to have a father with the condition than a mother (odds ratio, 1.79; P < .0001).
• The protective effect of maternal diabetes was seen regardless of whether the individuals were diagnosed with type 1 diabetes before or after age 18 years (P < .0001).
• Maternal diabetes was linked to a lower risk for type 1 diabetes in children only if the mother had type 1 diabetes during pregnancy.
• The genetic risk score for type 1 diabetes was not significantly different between those with affected fathers versus mothers (P = .31).

IN PRACTICE:

“Understanding why having a mother compared with a father with type 1 diabetes offers a relative protection against type 1 diabetes could help us develop new ways to prevent type 1 diabetes, such as treatments that mimic some of the protective elements from mothers,” study author Lowri Allen, MBChB, said in a news release.

SOURCE:

The study was led by Dr. Allen from the Diabetes Research Group, Cardiff University, Cardiff, Wales, and was published as an early release from the annual meeting of the European Association for the Study of Diabetes. 

LIMITATIONS:

This abstract did not discuss any limitations. The number of individuals and parents with type 1 diabetes in the meta-analysis was not disclosed. The baseline risk for type 1 diabetes among individuals with a mother, father, or both or no parent with type 1 diabetes was not disclosed. The number of people with type 1 diabetes under and over age 18 was not disclosed, nor were the numbers of mothers and fathers with type 1 diabetes. The relative risk in individuals having no parent with type 1 diabetes was not disclosed. Moreover, the race and ethnicity of the study populations were not disclosed. 

DISCLOSURES:

The Wellcome Trust supported this study. The authors declared no relevant conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

For 3 years, Ajala Efem’s type 2 diabetes was so poorly controlled that her blood sugar often soared northward of 500 mg/dL despite insulin shots three to five times a day. She would experience dizziness, vomiting, severe headaches, and the neuropathy in her feet made walking painful. She was also — literally — frothing at the mouth. The 47-year-old single mother of two adult children with mental disabilities feared that she would die.

Ms. Efem lives in the South Bronx, which is among the poorest areas of New York City, where the combined rate of prediabetes and diabetes is close to 30%, the highest rate of any borough in the city.

She had to wait 8 months for an appointment with an endocrinologist, but that visit proved to be life-changing. She lost 28 pounds and got off 15 medications in a single month. She did not join a gym or count calories; she simply changed the food she ate and adopted a low-carb diet.

“I went from being sick to feeling so great,” she told her endocrinologist recently: “My feet aren’t hurting; I’m not in pain; I’m eating as much as I want, and I really enjoy my food so much.” 

Ms. Efem’s life-changing visit was with Mariela Glandt, MD, at the offices of Essen Health Care. One month earlier, Dr. Glandt’s company, OwnaHealth, was contracted by Essen to conduct a 100-person pilot program for endocrinology patients. Essen is the largest Medicaid provider in New York City, and “they were desperate for an endocrinologist,” said Dr. Glandt, who trained at Columbia University in New York. So she came — all the way from Madrid, Spain. She commutes monthly, staying for a week each visit.

Dr. Glandt keeps up this punishing schedule because, as she explains, “it’s such a high for me to see these incredible transformations.” Her mostly Black and Hispanic patients are poor and lack resources, yet they lose significant amounts of weight, and their health issues resolve.

“Food is medicine” is an idea very much in vogue. The concept was central to the landmark White House Conference on Hunger, Nutrition, and Health in 2022 and is now the focus of a number of a wide range of government programs. Recently, the Senate held a hearing aimed at further expanding food as medicine programs.

Still, only a single randomized controlled clinical trial has been conducted on this nutritional approach, with unexpectedly disappointing results. In the mid-Atlantic region, 456 food-insecure adults with type 2 diabetes were randomly assigned to usual care or the provision of weekly groceries for their entire families for about 1 year. Provisions for a Mediterranean-style diet included whole grains, fruits and vegetables, lean protein, low-fat dairy products, cereal, brown rice, and bread. In addition, participants received dietary consultations. Yet, those who got free food and coaching did not see improvements in their average blood sugar (the study’s primary outcome), and their low-density lipoprotein (LDL) cholesterol and high-density lipoprotein (HDL) cholesterol levels appeared to have worsened. 

“To be honest, I was surprised,” the study’s lead author, Joseph Doyle, PhD, professor at the Sloan School of Management at MIT in Cambridge, Massachusetts, told me. “I was hoping we would show improved outcomes, but the way to make progress is to do well-randomized trials to find out what works.”

I was not surprised by these results because a recent rigorous systematic review and meta-analysis in The BMJ did not show a Mediterranean-style diet to be the most effective for glycemic control. And Ms. Efem was not in fact following a Mediterranean-style diet.

Ms. Efem’s low-carb success story is anecdotal, but Dr. Glandt has an established track record from her 9 years’ experience as the medical director of the eponymous diabetes center she founded in Tel Aviv. A recent audit of 344 patients from the center found that after 6 months of following a very low–carbohydrate diet, 96.3% of those with diabetes saw their A1c fall from a median 7.6% to 6.3%. Weight loss was significant, with a median drop of 6.5 kg (14 pounds) for patients with diabetes and 5.7 kg for those with prediabetes. The diet comprises 5%-10% of calories from carbs, but Dr. Glandt does not use numeric targets with her patients.

Blood pressure, triglycerides, and liver enzymes also improved. And though LDL cholesterol went up by 8%, this result may have been offset by an accompanying 13% rise in HDL cholesterol. Of the 78 patients initially on insulin, 62 were able to stop this medication entirely.

Although these results aren’t from a clinical trial, they’re still highly meaningful because the current dietary standard of care for type 2 diabetes can only slow the progression of the disease, not cause remission. Indeed, the idea that type 2 diabetes could be put into remission was not seriously considered by the American Diabetes Association (ADA) until 2009. By 2019, an ADA report concluded that “[r]educing overall carbohydrate intake for individuals with diabetes has demonstrated the most evidence for improving glycemia.” In other words, the best way to improve the key factor in diabetes is to reduce total carbohydrates. Yet, the ADA still advocates filling one quarter of one’s plate with carbohydrate-based foods, an amount that will prevent remission. Given that the ADA’s vision statement is “a life free of diabetes,” it seems negligent not to tell people with a deadly condition that they can reverse this diagnosis. 

A 2023 meta-analysis of 42 controlled clinical trials on 4809 patients showed that a very low–carbohydrate ketogenic diet (keto) was “superior” to alternatives for glycemic control. A more recent review of 11 clinical trials found that this diet was equal but not superior to other nutritional approaches in terms of blood sugar control, but this review also concluded that keto led to greater increases in HDL cholesterol and lower triglycerides. 

Dr. Glandt’s patients in the Bronx might not seem like obvious low-carb candidates. The diet is considered expensive and difficult to sustain. My interviews with a half dozen patients revealed some of these difficulties, but even for a woman living in a homeless shelter, the obstacles are not insurmountable.

Jerrilyn, who preferred that I use only her first name, lives in a shelter in Queens. While we strolled through a nearby park, she told me about her desire to lose weight and recover from polycystic ovary syndrome, which terrified her because it had caused dramatic hair loss. When she landed in Dr. Glandt’s office at age 28, she weighed 180 pounds. 

Less than 5 months later, Jerrilyn had lost 25 pounds, and her period had returned with some regularity. She said she used “food stamps,” known as the Supplemental Nutrition Assistance Program (SNAP), to buy most of her food at local delis because the meals served at the shelter were too heavy in starches. She starts her day with eggs, turkey bacon, and avocado. 

“It was hard to give up carbohydrates because in my culture [Latina], we have nothing but carbs: rice, potatoes, yuca,” Jerrilyn shared. She noticed that carbs make her hungrier, but after 3 days of going low-carb, her cravings diminished. “It was like getting over an addiction,” she said.

Jerrilyn told me she’d seen many doctors but none as involved as Dr. Glandt. “It feels awesome to know that I have a lot of really useful information coming from her all the time.” The OwnaHealth app tracks weight, blood pressure, blood sugar, ketones, meals, mood, and cravings. Patients wear continuous glucose monitors and enter other information manually. Ketone bodies are used to measure dietary adherence and are obtained through finger pricks and test strips provided by OwnaHealth. Dr. Glandt gives patients her own food plan, along with free visual guides to low-carbohydrate foods by dietdoctor.com. 

Dr. Glandt also sends her patients for regular blood work. She says she does not frequently see a rise in LDL cholesterol, which can sometimes occur on a low-carbohydrate diet. This effect is most common among people who are lean and fit. She says she doesn’t discontinue statins unless cholesterol levels improve significantly.

Samuel Gonzalez, age 56, weighed 275 pounds when he walked into Dr. Glandt’s office this past November. His A1c was 9.2%, but none of his previous doctors had diagnosed him with diabetes. “I was like a walking bag of sugar!” he joked. 

A low-carbohydrate diet seemed absurd to a Puerto Rican like himself: “Having coffee without sugar? That’s like sacrilegious in my culture!” exclaimed Mr. Gonzalez. Still, he managed, with SNAP, to cook eggs and bacon for breakfast and some kind of protein for dinner. He keeps lunch light, “like tuna fish,” and finds checking in with the OwnaHealth app to be very helpful. “Every day, I’m on it,” he said. In the past 7 months, he’s lost 50 pounds, normalized his cholesterol and blood pressure levels, and lowered his A1c to 5.5%.

Mr. Gonzalez gets disability payments due to a back injury, and Ms. Efem receives government payments because her husband died serving in the military. Ms. Efem says her new diet challenges her budget, but Mr. Gonzalez says he manages easily.

Mélissa Cruz, a 28-year-old studying to be a nail technician while also doing back office work at a physical therapy practice, says she’s stretched thin. “I end up sad because I can’t put energy into looking up recipes and cooking for me and my boyfriend,” she told me. She’ll often cook rice and plantains for him and meat for herself, but “it’s frustrating when I’m low on funds and can’t figure out what to eat.” 

Low-carbohydrate diets have a reputation for being expensive because people often start eating pricier foods, like meat and cheese, to replace cheaper starchy foods such as pasta and rice. Eggs and ground beef are less expensive low-carb meal options, and meat, unlike fruits and vegetables, is easy to freeze and doesn’t spoil quickly. These advantages can add up.

A 2019 cost analysis published in Nutrition & Dietetics compared a low-carbohydrate dietary pattern with the New Zealand government’s recommended guidelines (which are almost identical to those in the United States) and found that it cost only an extra $1.27 in US dollars per person per day. One explanation is that protein and fat are more satiating than carbohydrates, so people who mostly consume these macronutrients often cut back on snacks like packaged chips, crackers, and even fruits. Also, those on a ketogenic diet usually cut down on medications, so the additional $1.27 daily is likely offset by reduced spending at the pharmacy.

It’s not just Bronx residents with low socioeconomic status (SES) who adapt well to low-carbohydrate diets. Among Alabama state employees with diabetes enrolled in a low-carbohydrate dietary program provided by a company called Virta, the low SES population had the best outcomes. Virta also published survey data in 2023 showing that participants in a program with the Veteran’s Administration did not find additional costs to be an obstacle to dietary adherence. In fact, some participants saw cost reductions due to decreased spending on processed snacks and fast foods.

Ms. Cruz told me she struggles financially, yet she’s still lost nearly 30 pounds in 5 months, and her A1c went from 7.1% down to 5.9%, putting her diabetes into remission. Equally motivating for her are the improvements she’s seen in other hormonal issues. Since childhood, she’s had acanthosis, a condition that causes the skin to darken in velvety patches, and more recently, she developed severe hirsutism to the point of growing sideburns. “I had tried going vegan and fasting, but these just weren’t sustainable for me, and I was so overwhelmed with counting calories all the time.” Now, on a low-carbohydrate diet, which doesn’t require calorie counting, she’s finally seeing both these conditions improve significantly.

When I last checked in with Ms. Cruz, she said she had “kind of ghosted” Dr. Glandt due to her work and school constraints, but she hadn’t abandoned the diet. She appreciated, too, that Dr. Glandt had not given up on her and kept calling and messaging. “She’s not at all like a typical doctor who would just tell me to lose weight and shake their head at me,” Ms. Cruz said. 

Because Dr. Glandt’s approach is time-intensive and high-touch, it might seem impractical to scale up, but Dr. Glandt’s app uses artificial intelligence to help with communications thus allowing her, with help from part-time health coaches, to care for patients. 

This early success in one of the United States’ poorest and sickest neighborhoods should give us hope that type 2 diabetes need not to be a progressive irreversible disease, even among the disadvantaged. 

OwnaHealth’s track record, along with that of Virta and other similar low-carbohydrate medical practices also give hope to the food-is-medicine idea. Diabetes can go into remission, and people can be healed, provided that health practitioners prescribe the right foods. And in truth, it’s not a diet. It’s a way of eating that must be maintained. The sustainability of low-carbohydrate diets has been a point of contention, but the Virta trial, with 38% of patients sustaining remission at 2 years, showed that it’s possible. (OwnaHealth, for its part, offers long-term maintenance plans to help patients stay very low-carb permanently.) 

Given the tremendous costs and health burden of diabetes, this approach should no doubt be the first line of treatment for doctors and the ADA. The past two decades of clinical trial research have demonstrated that remission of type 2 diabetes is possible through diet alone. It turns out that for metabolic diseases, only certain foods are truly medicine. 
 

Tools and Tips for Clinicians: 

• Free two-page keto starter’s guide by OwnaHealth; Dr. Glandt uses this guide with her patients.
• Illustrated low-carb guides by dietdoctor.com
• Free low-carbohydrate starter guide by the Michigan Collaborative for Type 2 Diabetes
• Low-Carb for Any Budget, a free digital booklet by Mark Cucuzzella, MD, and Kristie Sullivan, PhD
• Recipe and meal ideas from Ruled.me, Keto-Mojo.com, and 

Dr. Teicholz is the founder of Nutrition Coalition, an independent nonprofit dedicated to ensuring that US dietary guidelines align with current science. She disclosed receiving book royalties from The Big Fat Surprise, and received honorarium not exceeding $2000 for speeches from various sources.

A version of this article appeared on Medscape.com.

For 3 years, Ajala Efem’s type 2 diabetes was so poorly controlled that her blood sugar often soared northward of 500 mg/dL despite insulin shots three to five times a day. She would experience dizziness, vomiting, severe headaches, and the neuropathy in her feet made walking painful. She was also — literally — frothing at the mouth. The 47-year-old single mother of two adult children with mental disabilities feared that she would die.

Ms. Efem lives in the South Bronx, which is among the poorest areas of New York City, where the combined rate of prediabetes and diabetes is close to 30%, the highest rate of any borough in the city.

She had to wait 8 months for an appointment with an endocrinologist, but that visit proved to be life-changing. She lost 28 pounds and got off 15 medications in a single month. She did not join a gym or count calories; she simply changed the food she ate and adopted a low-carb diet.

“I went from being sick to feeling so great,” she told her endocrinologist recently: “My feet aren’t hurting; I’m not in pain; I’m eating as much as I want, and I really enjoy my food so much.” 

Ms. Efem’s life-changing visit was with Mariela Glandt, MD, at the offices of Essen Health Care. One month earlier, Dr. Glandt’s company, OwnaHealth, was contracted by Essen to conduct a 100-person pilot program for endocrinology patients. Essen is the largest Medicaid provider in New York City, and “they were desperate for an endocrinologist,” said Dr. Glandt, who trained at Columbia University in New York. So she came — all the way from Madrid, Spain. She commutes monthly, staying for a week each visit.

Dr. Glandt keeps up this punishing schedule because, as she explains, “it’s such a high for me to see these incredible transformations.” Her mostly Black and Hispanic patients are poor and lack resources, yet they lose significant amounts of weight, and their health issues resolve.

“Food is medicine” is an idea very much in vogue. The concept was central to the landmark White House Conference on Hunger, Nutrition, and Health in 2022 and is now the focus of a number of a wide range of government programs. Recently, the Senate held a hearing aimed at further expanding food as medicine programs.

Still, only a single randomized controlled clinical trial has been conducted on this nutritional approach, with unexpectedly disappointing results. In the mid-Atlantic region, 456 food-insecure adults with type 2 diabetes were randomly assigned to usual care or the provision of weekly groceries for their entire families for about 1 year. Provisions for a Mediterranean-style diet included whole grains, fruits and vegetables, lean protein, low-fat dairy products, cereal, brown rice, and bread. In addition, participants received dietary consultations. Yet, those who got free food and coaching did not see improvements in their average blood sugar (the study’s primary outcome), and their low-density lipoprotein (LDL) cholesterol and high-density lipoprotein (HDL) cholesterol levels appeared to have worsened. 

“To be honest, I was surprised,” the study’s lead author, Joseph Doyle, PhD, professor at the Sloan School of Management at MIT in Cambridge, Massachusetts, told me. “I was hoping we would show improved outcomes, but the way to make progress is to do well-randomized trials to find out what works.”

I was not surprised by these results because a recent rigorous systematic review and meta-analysis in The BMJ did not show a Mediterranean-style diet to be the most effective for glycemic control. And Ms. Efem was not in fact following a Mediterranean-style diet.

Ms. Efem’s low-carb success story is anecdotal, but Dr. Glandt has an established track record from her 9 years’ experience as the medical director of the eponymous diabetes center she founded in Tel Aviv. A recent audit of 344 patients from the center found that after 6 months of following a very low–carbohydrate diet, 96.3% of those with diabetes saw their A1c fall from a median 7.6% to 6.3%. Weight loss was significant, with a median drop of 6.5 kg (14 pounds) for patients with diabetes and 5.7 kg for those with prediabetes. The diet comprises 5%-10% of calories from carbs, but Dr. Glandt does not use numeric targets with her patients.

Blood pressure, triglycerides, and liver enzymes also improved. And though LDL cholesterol went up by 8%, this result may have been offset by an accompanying 13% rise in HDL cholesterol. Of the 78 patients initially on insulin, 62 were able to stop this medication entirely.

Although these results aren’t from a clinical trial, they’re still highly meaningful because the current dietary standard of care for type 2 diabetes can only slow the progression of the disease, not cause remission. Indeed, the idea that type 2 diabetes could be put into remission was not seriously considered by the American Diabetes Association (ADA) until 2009. By 2019, an ADA report concluded that “[r]educing overall carbohydrate intake for individuals with diabetes has demonstrated the most evidence for improving glycemia.” In other words, the best way to improve the key factor in diabetes is to reduce total carbohydrates. Yet, the ADA still advocates filling one quarter of one’s plate with carbohydrate-based foods, an amount that will prevent remission. Given that the ADA’s vision statement is “a life free of diabetes,” it seems negligent not to tell people with a deadly condition that they can reverse this diagnosis. 

A 2023 meta-analysis of 42 controlled clinical trials on 4809 patients showed that a very low–carbohydrate ketogenic diet (keto) was “superior” to alternatives for glycemic control. A more recent review of 11 clinical trials found that this diet was equal but not superior to other nutritional approaches in terms of blood sugar control, but this review also concluded that keto led to greater increases in HDL cholesterol and lower triglycerides. 

Dr. Glandt’s patients in the Bronx might not seem like obvious low-carb candidates. The diet is considered expensive and difficult to sustain. My interviews with a half dozen patients revealed some of these difficulties, but even for a woman living in a homeless shelter, the obstacles are not insurmountable.

Jerrilyn, who preferred that I use only her first name, lives in a shelter in Queens. While we strolled through a nearby park, she told me about her desire to lose weight and recover from polycystic ovary syndrome, which terrified her because it had caused dramatic hair loss. When she landed in Dr. Glandt’s office at age 28, she weighed 180 pounds. 

Less than 5 months later, Jerrilyn had lost 25 pounds, and her period had returned with some regularity. She said she used “food stamps,” known as the Supplemental Nutrition Assistance Program (SNAP), to buy most of her food at local delis because the meals served at the shelter were too heavy in starches. She starts her day with eggs, turkey bacon, and avocado. 

“It was hard to give up carbohydrates because in my culture [Latina], we have nothing but carbs: rice, potatoes, yuca,” Jerrilyn shared. She noticed that carbs make her hungrier, but after 3 days of going low-carb, her cravings diminished. “It was like getting over an addiction,” she said.

Jerrilyn told me she’d seen many doctors but none as involved as Dr. Glandt. “It feels awesome to know that I have a lot of really useful information coming from her all the time.” The OwnaHealth app tracks weight, blood pressure, blood sugar, ketones, meals, mood, and cravings. Patients wear continuous glucose monitors and enter other information manually. Ketone bodies are used to measure dietary adherence and are obtained through finger pricks and test strips provided by OwnaHealth. Dr. Glandt gives patients her own food plan, along with free visual guides to low-carbohydrate foods by dietdoctor.com. 

Dr. Glandt also sends her patients for regular blood work. She says she does not frequently see a rise in LDL cholesterol, which can sometimes occur on a low-carbohydrate diet. This effect is most common among people who are lean and fit. She says she doesn’t discontinue statins unless cholesterol levels improve significantly.

Samuel Gonzalez, age 56, weighed 275 pounds when he walked into Dr. Glandt’s office this past November. His A1c was 9.2%, but none of his previous doctors had diagnosed him with diabetes. “I was like a walking bag of sugar!” he joked. 

A low-carbohydrate diet seemed absurd to a Puerto Rican like himself: “Having coffee without sugar? That’s like sacrilegious in my culture!” exclaimed Mr. Gonzalez. Still, he managed, with SNAP, to cook eggs and bacon for breakfast and some kind of protein for dinner. He keeps lunch light, “like tuna fish,” and finds checking in with the OwnaHealth app to be very helpful. “Every day, I’m on it,” he said. In the past 7 months, he’s lost 50 pounds, normalized his cholesterol and blood pressure levels, and lowered his A1c to 5.5%.

Mr. Gonzalez gets disability payments due to a back injury, and Ms. Efem receives government payments because her husband died serving in the military. Ms. Efem says her new diet challenges her budget, but Mr. Gonzalez says he manages easily.

Mélissa Cruz, a 28-year-old studying to be a nail technician while also doing back office work at a physical therapy practice, says she’s stretched thin. “I end up sad because I can’t put energy into looking up recipes and cooking for me and my boyfriend,” she told me. She’ll often cook rice and plantains for him and meat for herself, but “it’s frustrating when I’m low on funds and can’t figure out what to eat.” 

Low-carbohydrate diets have a reputation for being expensive because people often start eating pricier foods, like meat and cheese, to replace cheaper starchy foods such as pasta and rice. Eggs and ground beef are less expensive low-carb meal options, and meat, unlike fruits and vegetables, is easy to freeze and doesn’t spoil quickly. These advantages can add up.

A 2019 cost analysis published in Nutrition & Dietetics compared a low-carbohydrate dietary pattern with the New Zealand government’s recommended guidelines (which are almost identical to those in the United States) and found that it cost only an extra $1.27 in US dollars per person per day. One explanation is that protein and fat are more satiating than carbohydrates, so people who mostly consume these macronutrients often cut back on snacks like packaged chips, crackers, and even fruits. Also, those on a ketogenic diet usually cut down on medications, so the additional $1.27 daily is likely offset by reduced spending at the pharmacy.

It’s not just Bronx residents with low socioeconomic status (SES) who adapt well to low-carbohydrate diets. Among Alabama state employees with diabetes enrolled in a low-carbohydrate dietary program provided by a company called Virta, the low SES population had the best outcomes. Virta also published survey data in 2023 showing that participants in a program with the Veteran’s Administration did not find additional costs to be an obstacle to dietary adherence. In fact, some participants saw cost reductions due to decreased spending on processed snacks and fast foods.

Ms. Cruz told me she struggles financially, yet she’s still lost nearly 30 pounds in 5 months, and her A1c went from 7.1% down to 5.9%, putting her diabetes into remission. Equally motivating for her are the improvements she’s seen in other hormonal issues. Since childhood, she’s had acanthosis, a condition that causes the skin to darken in velvety patches, and more recently, she developed severe hirsutism to the point of growing sideburns. “I had tried going vegan and fasting, but these just weren’t sustainable for me, and I was so overwhelmed with counting calories all the time.” Now, on a low-carbohydrate diet, which doesn’t require calorie counting, she’s finally seeing both these conditions improve significantly.

When I last checked in with Ms. Cruz, she said she had “kind of ghosted” Dr. Glandt due to her work and school constraints, but she hadn’t abandoned the diet. She appreciated, too, that Dr. Glandt had not given up on her and kept calling and messaging. “She’s not at all like a typical doctor who would just tell me to lose weight and shake their head at me,” Ms. Cruz said. 

Because Dr. Glandt’s approach is time-intensive and high-touch, it might seem impractical to scale up, but Dr. Glandt’s app uses artificial intelligence to help with communications thus allowing her, with help from part-time health coaches, to care for patients. 

This early success in one of the United States’ poorest and sickest neighborhoods should give us hope that type 2 diabetes need not to be a progressive irreversible disease, even among the disadvantaged. 

OwnaHealth’s track record, along with that of Virta and other similar low-carbohydrate medical practices also give hope to the food-is-medicine idea. Diabetes can go into remission, and people can be healed, provided that health practitioners prescribe the right foods. And in truth, it’s not a diet. It’s a way of eating that must be maintained. The sustainability of low-carbohydrate diets has been a point of contention, but the Virta trial, with 38% of patients sustaining remission at 2 years, showed that it’s possible. (OwnaHealth, for its part, offers long-term maintenance plans to help patients stay very low-carb permanently.) 

Given the tremendous costs and health burden of diabetes, this approach should no doubt be the first line of treatment for doctors and the ADA. The past two decades of clinical trial research have demonstrated that remission of type 2 diabetes is possible through diet alone. It turns out that for metabolic diseases, only certain foods are truly medicine. 
 

Tools and Tips for Clinicians: 

• Free two-page keto starter’s guide by OwnaHealth; Dr. Glandt uses this guide with her patients.
• Illustrated low-carb guides by dietdoctor.com
• Free low-carbohydrate starter guide by the Michigan Collaborative for Type 2 Diabetes
• Low-Carb for Any Budget, a free digital booklet by Mark Cucuzzella, MD, and Kristie Sullivan, PhD
• Recipe and meal ideas from Ruled.me, Keto-Mojo.com, and 

Dr. Teicholz is the founder of Nutrition Coalition, an independent nonprofit dedicated to ensuring that US dietary guidelines align with current science. She disclosed receiving book royalties from The Big Fat Surprise, and received honorarium not exceeding $2000 for speeches from various sources.

A version of this article appeared on Medscape.com.

For 3 years, Ajala Efem’s type 2 diabetes was so poorly controlled that her blood sugar often soared northward of 500 mg/dL despite insulin shots three to five times a day. She would experience dizziness, vomiting, severe headaches, and the neuropathy in her feet made walking painful. She was also — literally — frothing at the mouth. The 47-year-old single mother of two adult children with mental disabilities feared that she would die.

Ms. Efem lives in the South Bronx, which is among the poorest areas of New York City, where the combined rate of prediabetes and diabetes is close to 30%, the highest rate of any borough in the city.

She had to wait 8 months for an appointment with an endocrinologist, but that visit proved to be life-changing. She lost 28 pounds and got off 15 medications in a single month. She did not join a gym or count calories; she simply changed the food she ate and adopted a low-carb diet.

“I went from being sick to feeling so great,” she told her endocrinologist recently: “My feet aren’t hurting; I’m not in pain; I’m eating as much as I want, and I really enjoy my food so much.” 

Ms. Efem’s life-changing visit was with Mariela Glandt, MD, at the offices of Essen Health Care. One month earlier, Dr. Glandt’s company, OwnaHealth, was contracted by Essen to conduct a 100-person pilot program for endocrinology patients. Essen is the largest Medicaid provider in New York City, and “they were desperate for an endocrinologist,” said Dr. Glandt, who trained at Columbia University in New York. So she came — all the way from Madrid, Spain. She commutes monthly, staying for a week each visit.

Dr. Glandt keeps up this punishing schedule because, as she explains, “it’s such a high for me to see these incredible transformations.” Her mostly Black and Hispanic patients are poor and lack resources, yet they lose significant amounts of weight, and their health issues resolve.

“Food is medicine” is an idea very much in vogue. The concept was central to the landmark White House Conference on Hunger, Nutrition, and Health in 2022 and is now the focus of a number of a wide range of government programs. Recently, the Senate held a hearing aimed at further expanding food as medicine programs.

Still, only a single randomized controlled clinical trial has been conducted on this nutritional approach, with unexpectedly disappointing results. In the mid-Atlantic region, 456 food-insecure adults with type 2 diabetes were randomly assigned to usual care or the provision of weekly groceries for their entire families for about 1 year. Provisions for a Mediterranean-style diet included whole grains, fruits and vegetables, lean protein, low-fat dairy products, cereal, brown rice, and bread. In addition, participants received dietary consultations. Yet, those who got free food and coaching did not see improvements in their average blood sugar (the study’s primary outcome), and their low-density lipoprotein (LDL) cholesterol and high-density lipoprotein (HDL) cholesterol levels appeared to have worsened. 

“To be honest, I was surprised,” the study’s lead author, Joseph Doyle, PhD, professor at the Sloan School of Management at MIT in Cambridge, Massachusetts, told me. “I was hoping we would show improved outcomes, but the way to make progress is to do well-randomized trials to find out what works.”

I was not surprised by these results because a recent rigorous systematic review and meta-analysis in The BMJ did not show a Mediterranean-style diet to be the most effective for glycemic control. And Ms. Efem was not in fact following a Mediterranean-style diet.

Ms. Efem’s low-carb success story is anecdotal, but Dr. Glandt has an established track record from her 9 years’ experience as the medical director of the eponymous diabetes center she founded in Tel Aviv. A recent audit of 344 patients from the center found that after 6 months of following a very low–carbohydrate diet, 96.3% of those with diabetes saw their A1c fall from a median 7.6% to 6.3%. Weight loss was significant, with a median drop of 6.5 kg (14 pounds) for patients with diabetes and 5.7 kg for those with prediabetes. The diet comprises 5%-10% of calories from carbs, but Dr. Glandt does not use numeric targets with her patients.

Blood pressure, triglycerides, and liver enzymes also improved. And though LDL cholesterol went up by 8%, this result may have been offset by an accompanying 13% rise in HDL cholesterol. Of the 78 patients initially on insulin, 62 were able to stop this medication entirely.

Although these results aren’t from a clinical trial, they’re still highly meaningful because the current dietary standard of care for type 2 diabetes can only slow the progression of the disease, not cause remission. Indeed, the idea that type 2 diabetes could be put into remission was not seriously considered by the American Diabetes Association (ADA) until 2009. By 2019, an ADA report concluded that “[r]educing overall carbohydrate intake for individuals with diabetes has demonstrated the most evidence for improving glycemia.” In other words, the best way to improve the key factor in diabetes is to reduce total carbohydrates. Yet, the ADA still advocates filling one quarter of one’s plate with carbohydrate-based foods, an amount that will prevent remission. Given that the ADA’s vision statement is “a life free of diabetes,” it seems negligent not to tell people with a deadly condition that they can reverse this diagnosis. 

A 2023 meta-analysis of 42 controlled clinical trials on 4809 patients showed that a very low–carbohydrate ketogenic diet (keto) was “superior” to alternatives for glycemic control. A more recent review of 11 clinical trials found that this diet was equal but not superior to other nutritional approaches in terms of blood sugar control, but this review also concluded that keto led to greater increases in HDL cholesterol and lower triglycerides. 

Dr. Glandt’s patients in the Bronx might not seem like obvious low-carb candidates. The diet is considered expensive and difficult to sustain. My interviews with a half dozen patients revealed some of these difficulties, but even for a woman living in a homeless shelter, the obstacles are not insurmountable.

Jerrilyn, who preferred that I use only her first name, lives in a shelter in Queens. While we strolled through a nearby park, she told me about her desire to lose weight and recover from polycystic ovary syndrome, which terrified her because it had caused dramatic hair loss. When she landed in Dr. Glandt’s office at age 28, she weighed 180 pounds. 

Less than 5 months later, Jerrilyn had lost 25 pounds, and her period had returned with some regularity. She said she used “food stamps,” known as the Supplemental Nutrition Assistance Program (SNAP), to buy most of her food at local delis because the meals served at the shelter were too heavy in starches. She starts her day with eggs, turkey bacon, and avocado. 

“It was hard to give up carbohydrates because in my culture [Latina], we have nothing but carbs: rice, potatoes, yuca,” Jerrilyn shared. She noticed that carbs make her hungrier, but after 3 days of going low-carb, her cravings diminished. “It was like getting over an addiction,” she said.

Jerrilyn told me she’d seen many doctors but none as involved as Dr. Glandt. “It feels awesome to know that I have a lot of really useful information coming from her all the time.” The OwnaHealth app tracks weight, blood pressure, blood sugar, ketones, meals, mood, and cravings. Patients wear continuous glucose monitors and enter other information manually. Ketone bodies are used to measure dietary adherence and are obtained through finger pricks and test strips provided by OwnaHealth. Dr. Glandt gives patients her own food plan, along with free visual guides to low-carbohydrate foods by dietdoctor.com. 

Dr. Glandt also sends her patients for regular blood work. She says she does not frequently see a rise in LDL cholesterol, which can sometimes occur on a low-carbohydrate diet. This effect is most common among people who are lean and fit. She says she doesn’t discontinue statins unless cholesterol levels improve significantly.

Samuel Gonzalez, age 56, weighed 275 pounds when he walked into Dr. Glandt’s office this past November. His A1c was 9.2%, but none of his previous doctors had diagnosed him with diabetes. “I was like a walking bag of sugar!” he joked. 

A low-carbohydrate diet seemed absurd to a Puerto Rican like himself: “Having coffee without sugar? That’s like sacrilegious in my culture!” exclaimed Mr. Gonzalez. Still, he managed, with SNAP, to cook eggs and bacon for breakfast and some kind of protein for dinner. He keeps lunch light, “like tuna fish,” and finds checking in with the OwnaHealth app to be very helpful. “Every day, I’m on it,” he said. In the past 7 months, he’s lost 50 pounds, normalized his cholesterol and blood pressure levels, and lowered his A1c to 5.5%.

Mr. Gonzalez gets disability payments due to a back injury, and Ms. Efem receives government payments because her husband died serving in the military. Ms. Efem says her new diet challenges her budget, but Mr. Gonzalez says he manages easily.

Mélissa Cruz, a 28-year-old studying to be a nail technician while also doing back office work at a physical therapy practice, says she’s stretched thin. “I end up sad because I can’t put energy into looking up recipes and cooking for me and my boyfriend,” she told me. She’ll often cook rice and plantains for him and meat for herself, but “it’s frustrating when I’m low on funds and can’t figure out what to eat.” 

Low-carbohydrate diets have a reputation for being expensive because people often start eating pricier foods, like meat and cheese, to replace cheaper starchy foods such as pasta and rice. Eggs and ground beef are less expensive low-carb meal options, and meat, unlike fruits and vegetables, is easy to freeze and doesn’t spoil quickly. These advantages can add up.

A 2019 cost analysis published in Nutrition & Dietetics compared a low-carbohydrate dietary pattern with the New Zealand government’s recommended guidelines (which are almost identical to those in the United States) and found that it cost only an extra $1.27 in US dollars per person per day. One explanation is that protein and fat are more satiating than carbohydrates, so people who mostly consume these macronutrients often cut back on snacks like packaged chips, crackers, and even fruits. Also, those on a ketogenic diet usually cut down on medications, so the additional $1.27 daily is likely offset by reduced spending at the pharmacy.

It’s not just Bronx residents with low socioeconomic status (SES) who adapt well to low-carbohydrate diets. Among Alabama state employees with diabetes enrolled in a low-carbohydrate dietary program provided by a company called Virta, the low SES population had the best outcomes. Virta also published survey data in 2023 showing that participants in a program with the Veteran’s Administration did not find additional costs to be an obstacle to dietary adherence. In fact, some participants saw cost reductions due to decreased spending on processed snacks and fast foods.

Ms. Cruz told me she struggles financially, yet she’s still lost nearly 30 pounds in 5 months, and her A1c went from 7.1% down to 5.9%, putting her diabetes into remission. Equally motivating for her are the improvements she’s seen in other hormonal issues. Since childhood, she’s had acanthosis, a condition that causes the skin to darken in velvety patches, and more recently, she developed severe hirsutism to the point of growing sideburns. “I had tried going vegan and fasting, but these just weren’t sustainable for me, and I was so overwhelmed with counting calories all the time.” Now, on a low-carbohydrate diet, which doesn’t require calorie counting, she’s finally seeing both these conditions improve significantly.

When I last checked in with Ms. Cruz, she said she had “kind of ghosted” Dr. Glandt due to her work and school constraints, but she hadn’t abandoned the diet. She appreciated, too, that Dr. Glandt had not given up on her and kept calling and messaging. “She’s not at all like a typical doctor who would just tell me to lose weight and shake their head at me,” Ms. Cruz said. 

Because Dr. Glandt’s approach is time-intensive and high-touch, it might seem impractical to scale up, but Dr. Glandt’s app uses artificial intelligence to help with communications thus allowing her, with help from part-time health coaches, to care for patients. 

This early success in one of the United States’ poorest and sickest neighborhoods should give us hope that type 2 diabetes need not to be a progressive irreversible disease, even among the disadvantaged. 

OwnaHealth’s track record, along with that of Virta and other similar low-carbohydrate medical practices also give hope to the food-is-medicine idea. Diabetes can go into remission, and people can be healed, provided that health practitioners prescribe the right foods. And in truth, it’s not a diet. It’s a way of eating that must be maintained. The sustainability of low-carbohydrate diets has been a point of contention, but the Virta trial, with 38% of patients sustaining remission at 2 years, showed that it’s possible. (OwnaHealth, for its part, offers long-term maintenance plans to help patients stay very low-carb permanently.) 

Given the tremendous costs and health burden of diabetes, this approach should no doubt be the first line of treatment for doctors and the ADA. The past two decades of clinical trial research have demonstrated that remission of type 2 diabetes is possible through diet alone. It turns out that for metabolic diseases, only certain foods are truly medicine. 
 

Tools and Tips for Clinicians: 

• Free two-page keto starter’s guide by OwnaHealth; Dr. Glandt uses this guide with her patients.
• Illustrated low-carb guides by dietdoctor.com
• Free low-carbohydrate starter guide by the Michigan Collaborative for Type 2 Diabetes
• Low-Carb for Any Budget, a free digital booklet by Mark Cucuzzella, MD, and Kristie Sullivan, PhD
• Recipe and meal ideas from Ruled.me, Keto-Mojo.com, and 

Dr. Teicholz is the founder of Nutrition Coalition, an independent nonprofit dedicated to ensuring that US dietary guidelines align with current science. She disclosed receiving book royalties from The Big Fat Surprise, and received honorarium not exceeding $2000 for speeches from various sources.

A version of this article appeared on Medscape.com.

For decades it’s been thought that preconception use of the oral antidiabetic metformin by mothers and fathers might result in adverse fetal outcomes, including congenital malformations and stillbirths.

Women with type 2 diabetes (T2D) are often advised to switch to insulin before or during early pregnancy out of concern for fetal safety. But two studies from the Harvard T.H. Chan School of Public Health in Boston, Massachusetts — one in mothers, the other in fathers — report that metformin, a common and cost-effective antidiabetic agent, is not associated with a significant increased risk of teratogenicity and negative perinatal outcomes. The studies appear in Annals of Internal Medicine.

The studies may make it easier for physicians to reassure diabetic parents-to-be about the safety of metformin use before conception and in early pregnancy,

In the context of sparse existing safety data, the maternal analysis looked at Medicaid data on 12,489 mothers (mean age, about 30) receiving metformin for pregestational T2D during the period 2000-2018. “Many women become pregnant while still taking noninsulin oral antidiabetics, mostly metformin, and one safety concern is whether metformin could cause birth defects,” lead author Yu-Han Chiu, MD, ScD, an epidemiologist, said in an interview, commenting on the impetus for the study.

Metformin in Fathers

Turning to fathers, a much larger cohort study by Harvard T.H. Chan investigators looked at the effect of paternal metformin use and also found it to be safe.

The Harvard investigators analyzed diabetic men in 383,851 live births from 1999 to 2020 in an Israeli health fund cohort, excluding those with diabetic spouses. Across different T2D medication groups, paternal age ranged from about 35 to about 43 years. The data revealed that paternal use of metformin monotherapy in the preconception sperm production period was, after adjustment of crude numbers, not associated with major congenital malformations (MCMs) in newborns.

“While metformin has an overall good safety profile, it can lower androgen levels, and there had been some concerns that its use in fathers could alter the sperm, causing adverse effects to the fetus,” lead author and neuroepidemiologist Ran S. Rotem, MD, ScD, of the Harvard School of Public Health, Boston, Massachusetts, said in interview. “Given the increasing prevalence of diabetes in young individuals, more fathers are conceiving a child while using the medication, which could lead to a substantial population effect even if the individual risk is low. But our study suggests that the medication is safe to use by fathers before conception.”

For decades it’s been thought that preconception use of the oral antidiabetic metformin by mothers and fathers might result in adverse fetal outcomes, including congenital malformations and stillbirths.

Women with type 2 diabetes (T2D) are often advised to switch to insulin before or during early pregnancy out of concern for fetal safety. But two studies from the Harvard T.H. Chan School of Public Health in Boston, Massachusetts — one in mothers, the other in fathers — report that metformin, a common and cost-effective antidiabetic agent, is not associated with a significant increased risk of teratogenicity and negative perinatal outcomes. The studies appear in Annals of Internal Medicine.

The studies may make it easier for physicians to reassure diabetic parents-to-be about the safety of metformin use before conception and in early pregnancy,

In the context of sparse existing safety data, the maternal analysis looked at Medicaid data on 12,489 mothers (mean age, about 30) receiving metformin for pregestational T2D during the period 2000-2018. “Many women become pregnant while still taking noninsulin oral antidiabetics, mostly metformin, and one safety concern is whether metformin could cause birth defects,” lead author Yu-Han Chiu, MD, ScD, an epidemiologist, said in an interview, commenting on the impetus for the study.

Metformin in Fathers

Turning to fathers, a much larger cohort study by Harvard T.H. Chan investigators looked at the effect of paternal metformin use and also found it to be safe.

The Harvard investigators analyzed diabetic men in 383,851 live births from 1999 to 2020 in an Israeli health fund cohort, excluding those with diabetic spouses. Across different T2D medication groups, paternal age ranged from about 35 to about 43 years. The data revealed that paternal use of metformin monotherapy in the preconception sperm production period was, after adjustment of crude numbers, not associated with major congenital malformations (MCMs) in newborns.

“While metformin has an overall good safety profile, it can lower androgen levels, and there had been some concerns that its use in fathers could alter the sperm, causing adverse effects to the fetus,” lead author and neuroepidemiologist Ran S. Rotem, MD, ScD, of the Harvard School of Public Health, Boston, Massachusetts, said in interview. “Given the increasing prevalence of diabetes in young individuals, more fathers are conceiving a child while using the medication, which could lead to a substantial population effect even if the individual risk is low. But our study suggests that the medication is safe to use by fathers before conception.”

For decades it’s been thought that preconception use of the oral antidiabetic metformin by mothers and fathers might result in adverse fetal outcomes, including congenital malformations and stillbirths.

Women with type 2 diabetes (T2D) are often advised to switch to insulin before or during early pregnancy out of concern for fetal safety. But two studies from the Harvard T.H. Chan School of Public Health in Boston, Massachusetts — one in mothers, the other in fathers — report that metformin, a common and cost-effective antidiabetic agent, is not associated with a significant increased risk of teratogenicity and negative perinatal outcomes. The studies appear in Annals of Internal Medicine.

The studies may make it easier for physicians to reassure diabetic parents-to-be about the safety of metformin use before conception and in early pregnancy,

In the context of sparse existing safety data, the maternal analysis looked at Medicaid data on 12,489 mothers (mean age, about 30) receiving metformin for pregestational T2D during the period 2000-2018. “Many women become pregnant while still taking noninsulin oral antidiabetics, mostly metformin, and one safety concern is whether metformin could cause birth defects,” lead author Yu-Han Chiu, MD, ScD, an epidemiologist, said in an interview, commenting on the impetus for the study.

Metformin in Fathers

Turning to fathers, a much larger cohort study by Harvard T.H. Chan investigators looked at the effect of paternal metformin use and also found it to be safe.

The Harvard investigators analyzed diabetic men in 383,851 live births from 1999 to 2020 in an Israeli health fund cohort, excluding those with diabetic spouses. Across different T2D medication groups, paternal age ranged from about 35 to about 43 years. The data revealed that paternal use of metformin monotherapy in the preconception sperm production period was, after adjustment of crude numbers, not associated with major congenital malformations (MCMs) in newborns.

“While metformin has an overall good safety profile, it can lower androgen levels, and there had been some concerns that its use in fathers could alter the sperm, causing adverse effects to the fetus,” lead author and neuroepidemiologist Ran S. Rotem, MD, ScD, of the Harvard School of Public Health, Boston, Massachusetts, said in interview. “Given the increasing prevalence of diabetes in young individuals, more fathers are conceiving a child while using the medication, which could lead to a substantial population effect even if the individual risk is low. But our study suggests that the medication is safe to use by fathers before conception.”

An ancient Chinese remedy for malaria could offer new hope to the 10% of reproductive-age women living with polycystic ovarian syndrome (PCOS), a poorly understood endocrine disorder that can cause hormonal imbalances, irregular periods, and cysts in the ovaries.

“PCOS is among the most common disorders of reproductive-age women,” said endocrinologist Andrea Dunaif, MD, a professor at the Icahn School of Medicine at Mount Sinai, New York City, who studies diabetes and women’s health. “It is a major risk factor for obesity, type 2 diabetes, and heart disease.” It’s also a leading cause of infertility.

Yet despite how common it is, PCOS has no Food and Drug Administration–approved treatments, though a few early-stage clinical trials are underway. Many women end up taking off-label medications such as oral contraceptives, insulin-sensitizing agents, and antiandrogens to help manage symptoms. Surgery can also be used to treat fertility problems associated with PCOS, though it may not work for everyone.

In a new study, a derivative of artemisinin — a molecule that comes from Artemisia plants, which have been used as far back as 1596 to treat malaria in China — helped relieve PCOS symptoms in rats and a small group of women.

Previously, the study’s lead researcher Qi-qun Tang, MD, PhD, had found that this derivative, called artemether, can increase thermogenesis, boosting metabolism. Dr. Tang and his team at Fudan University, Shanghai, China, wanted to see if it would help with PCOS, which is associated with metabolic problems such as insulin resistance.
 

What the Researchers Did

To simulate PCOS in rats, the team treated the rodents with insulin and human chorionic gonadotropin. Then, they tested artemether on the rats and found that it lowered androgen production in the ovaries.

“A common feature [of PCOS] is that the ovaries, and often the adrenal glands, make increased male hormones, nowhere near what a man makes but slightly above what a normal woman makes,” said Dr. Dunaif, who was not involved in the study.

Artemether “inhibits one of the steroidogenic enzymes, CYP11A1, which is important in the production of male hormones,” Dr. Tang said. It does this by increasing the enzyme’s interaction with a protein called LONP1, triggering the enzyme’s breakdown. Increased levels of LONP1 also appeared to suppress androgen production in the ovaries.

In a pilot clinical study of 19 women with PCOS, taking dihydroartemisinin — an approved drug used to treat malaria that contains active artemisinin derivatives — for 12 weeks substantially reduced serum testosterone and anti-Müllerian hormone levels (which are higher in women with PCOS). Using ultrasound, the researchers found that the antral follicle count (also higher than normal with PCOS) had been reduced. All participants had regular menstrual cycles during treatment. And no one reported significant side effects.

“Regular menstrual cycles suggest that there is ovulation, which can result in conception,” Dr. Dunaif said. Still, testing would be needed to confirm that cycles are ovulatory.

Lowering androgen levels “could improve a substantial portion of the symptoms of PCOS,” said Dr. Dunaif. But the research didn’t see an improvement in insulin sensitivity among the women, suggesting that targeting androgens may not help the metabolic symptoms.
 

What’s Next? 

A larger, placebo-controlled trial would still be needed to assess the drug’s efficacy, said Dr. Dunaif, pointing out that the human study did not have a placebo arm.

And unanswered questions remain. Are there any adrenal effects of the compound? “The enzymes that produce androgens are shared between the ovary and the adrenal [gland],” Dr. Dunaif said, but she pointed out that the study doesn’t address whether there is an adrenal benefit. It’s something to look at in future research.

Still, because artemisinin is an established drug, it may come to market faster than a new molecule would, she said. However, a pharmaceutical company would need to be willing to take on the drug. (Dr. Tang said several companies have already expressed interest.)

And while you can buy artemisinin on the Internet, Dr. Dunaif warned not to start taking it if you have PCOS. “I don’t think we’re at that point,” Dr. Dunaif said.

A version of this article first appeared on Medscape.com.

An ancient Chinese remedy for malaria could offer new hope to the 10% of reproductive-age women living with polycystic ovarian syndrome (PCOS), a poorly understood endocrine disorder that can cause hormonal imbalances, irregular periods, and cysts in the ovaries.

“PCOS is among the most common disorders of reproductive-age women,” said endocrinologist Andrea Dunaif, MD, a professor at the Icahn School of Medicine at Mount Sinai, New York City, who studies diabetes and women’s health. “It is a major risk factor for obesity, type 2 diabetes, and heart disease.” It’s also a leading cause of infertility.

Yet despite how common it is, PCOS has no Food and Drug Administration–approved treatments, though a few early-stage clinical trials are underway. Many women end up taking off-label medications such as oral contraceptives, insulin-sensitizing agents, and antiandrogens to help manage symptoms. Surgery can also be used to treat fertility problems associated with PCOS, though it may not work for everyone.

In a new study, a derivative of artemisinin — a molecule that comes from Artemisia plants, which have been used as far back as 1596 to treat malaria in China — helped relieve PCOS symptoms in rats and a small group of women.

Previously, the study’s lead researcher Qi-qun Tang, MD, PhD, had found that this derivative, called artemether, can increase thermogenesis, boosting metabolism. Dr. Tang and his team at Fudan University, Shanghai, China, wanted to see if it would help with PCOS, which is associated with metabolic problems such as insulin resistance.
 

What the Researchers Did

To simulate PCOS in rats, the team treated the rodents with insulin and human chorionic gonadotropin. Then, they tested artemether on the rats and found that it lowered androgen production in the ovaries.

“A common feature [of PCOS] is that the ovaries, and often the adrenal glands, make increased male hormones, nowhere near what a man makes but slightly above what a normal woman makes,” said Dr. Dunaif, who was not involved in the study.

Artemether “inhibits one of the steroidogenic enzymes, CYP11A1, which is important in the production of male hormones,” Dr. Tang said. It does this by increasing the enzyme’s interaction with a protein called LONP1, triggering the enzyme’s breakdown. Increased levels of LONP1 also appeared to suppress androgen production in the ovaries.

In a pilot clinical study of 19 women with PCOS, taking dihydroartemisinin — an approved drug used to treat malaria that contains active artemisinin derivatives — for 12 weeks substantially reduced serum testosterone and anti-Müllerian hormone levels (which are higher in women with PCOS). Using ultrasound, the researchers found that the antral follicle count (also higher than normal with PCOS) had been reduced. All participants had regular menstrual cycles during treatment. And no one reported significant side effects.

“Regular menstrual cycles suggest that there is ovulation, which can result in conception,” Dr. Dunaif said. Still, testing would be needed to confirm that cycles are ovulatory.

Lowering androgen levels “could improve a substantial portion of the symptoms of PCOS,” said Dr. Dunaif. But the research didn’t see an improvement in insulin sensitivity among the women, suggesting that targeting androgens may not help the metabolic symptoms.
 

What’s Next? 

A larger, placebo-controlled trial would still be needed to assess the drug’s efficacy, said Dr. Dunaif, pointing out that the human study did not have a placebo arm.

And unanswered questions remain. Are there any adrenal effects of the compound? “The enzymes that produce androgens are shared between the ovary and the adrenal [gland],” Dr. Dunaif said, but she pointed out that the study doesn’t address whether there is an adrenal benefit. It’s something to look at in future research.

Still, because artemisinin is an established drug, it may come to market faster than a new molecule would, she said. However, a pharmaceutical company would need to be willing to take on the drug. (Dr. Tang said several companies have already expressed interest.)

And while you can buy artemisinin on the Internet, Dr. Dunaif warned not to start taking it if you have PCOS. “I don’t think we’re at that point,” Dr. Dunaif said.

A version of this article first appeared on Medscape.com.

An ancient Chinese remedy for malaria could offer new hope to the 10% of reproductive-age women living with polycystic ovarian syndrome (PCOS), a poorly understood endocrine disorder that can cause hormonal imbalances, irregular periods, and cysts in the ovaries.

“PCOS is among the most common disorders of reproductive-age women,” said endocrinologist Andrea Dunaif, MD, a professor at the Icahn School of Medicine at Mount Sinai, New York City, who studies diabetes and women’s health. “It is a major risk factor for obesity, type 2 diabetes, and heart disease.” It’s also a leading cause of infertility.

Yet despite how common it is, PCOS has no Food and Drug Administration–approved treatments, though a few early-stage clinical trials are underway. Many women end up taking off-label medications such as oral contraceptives, insulin-sensitizing agents, and antiandrogens to help manage symptoms. Surgery can also be used to treat fertility problems associated with PCOS, though it may not work for everyone.

In a new study, a derivative of artemisinin — a molecule that comes from Artemisia plants, which have been used as far back as 1596 to treat malaria in China — helped relieve PCOS symptoms in rats and a small group of women.

Previously, the study’s lead researcher Qi-qun Tang, MD, PhD, had found that this derivative, called artemether, can increase thermogenesis, boosting metabolism. Dr. Tang and his team at Fudan University, Shanghai, China, wanted to see if it would help with PCOS, which is associated with metabolic problems such as insulin resistance.
 

What the Researchers Did

To simulate PCOS in rats, the team treated the rodents with insulin and human chorionic gonadotropin. Then, they tested artemether on the rats and found that it lowered androgen production in the ovaries.

“A common feature [of PCOS] is that the ovaries, and often the adrenal glands, make increased male hormones, nowhere near what a man makes but slightly above what a normal woman makes,” said Dr. Dunaif, who was not involved in the study.

Artemether “inhibits one of the steroidogenic enzymes, CYP11A1, which is important in the production of male hormones,” Dr. Tang said. It does this by increasing the enzyme’s interaction with a protein called LONP1, triggering the enzyme’s breakdown. Increased levels of LONP1 also appeared to suppress androgen production in the ovaries.

In a pilot clinical study of 19 women with PCOS, taking dihydroartemisinin — an approved drug used to treat malaria that contains active artemisinin derivatives — for 12 weeks substantially reduced serum testosterone and anti-Müllerian hormone levels (which are higher in women with PCOS). Using ultrasound, the researchers found that the antral follicle count (also higher than normal with PCOS) had been reduced. All participants had regular menstrual cycles during treatment. And no one reported significant side effects.

“Regular menstrual cycles suggest that there is ovulation, which can result in conception,” Dr. Dunaif said. Still, testing would be needed to confirm that cycles are ovulatory.

Lowering androgen levels “could improve a substantial portion of the symptoms of PCOS,” said Dr. Dunaif. But the research didn’t see an improvement in insulin sensitivity among the women, suggesting that targeting androgens may not help the metabolic symptoms.
 

What’s Next? 

A larger, placebo-controlled trial would still be needed to assess the drug’s efficacy, said Dr. Dunaif, pointing out that the human study did not have a placebo arm.

And unanswered questions remain. Are there any adrenal effects of the compound? “The enzymes that produce androgens are shared between the ovary and the adrenal [gland],” Dr. Dunaif said, but she pointed out that the study doesn’t address whether there is an adrenal benefit. It’s something to look at in future research.

Still, because artemisinin is an established drug, it may come to market faster than a new molecule would, she said. However, a pharmaceutical company would need to be willing to take on the drug. (Dr. Tang said several companies have already expressed interest.)

And while you can buy artemisinin on the Internet, Dr. Dunaif warned not to start taking it if you have PCOS. “I don’t think we’re at that point,” Dr. Dunaif said.

A version of this article first appeared on Medscape.com.

BOSTON — An investigational male contraceptive gel suppresses sperm more rapidly than previous products in development, new data suggested.

The product, 8 mg segesterone acetate (Nestorone) combined with 74 mg testosterone (“NesT”) is a gel that a man applies daily to both shoulders. The progesterone blocks spermatogenesis, and the testosterone restores blood levels to maintain sexual function. It is under development by the National Institute of Child Health and Human Development (NICHD) in collaboration with the Population Council, the Los Angeles Biomedical Research Institute, and the University of Washington School of Medicine.

Currently, the only available male contraceptives are vasectomy, which isn’t easily reversible, and condoms, which have a high failure rate. Previous attempts to develop a “male pill” have been unsuccessful for a variety of reasons, but so far, this product appears effective and safe, Diana Blithe, PhD, chief of the Contraceptive Development Program at NICHD, said at a press briefing held on June 2, 2024, during the annual meeting of the Endocrine Society.

“It’s been a long time coming. … Men need and want more contraceptive options such as an effective reversible method,” she told this news organization.

New phase 2b data show that among 222 couples in which the man initially had normal (> 15 million/mL) sperm counts, the median time to suppression (< 1 million/mL) was less than 8 weeks with NesT compared with 9-15 weeks seen in previous trials of injected male hormonal contraceptives. Nearly all (86%) had achieved suppression by 15 weeks.

After two consecutive counts of < 1 million/mL, the couples entered the trial’s ongoing 2-year efficacy phase. There have been no major safety concerns thus far, but “we need more data,” Dr. Blithe noted.

Asked to comment, session moderator Frances Hayes, MBBCh, associate clinical chief of the Division of Reproductive Endocrinology at Massachusetts General Hospital, Boston, said, “certainly, I think it’s a big advance on what we have so far. … I think it’s showing great promise.”

Dr. Hayes did caution, though, that “with real-world use, daily application of a gel might be a bit more challenging than taking an injection…an injection is more consistent. With a gel, patients might forget or shower it off. But I don’t think 1 day of interruption would be a significant thing.”

Transference of the topical to a partner or a child is another potential concern, Dr. Hayes noted, although this is true of current testosterone gel products as well. During the briefing, Dr. Blithe said that this issue is why the product is recommended to be placed on the upper arms rather than the abdomen or another spot more likely to come into contact with another person. Also, in the trial, men were instructed to wear shirts during intercourse.

Regarding the rapidity of sperm suppression, Dr. Hayes said, “It’s surprising. It looks great as a reversible contraceptive. … Normally, you think of the life cycle of the sperm being about 72 days. So to see 50% suppression by 8 weeks, and then 85%-90% by 15 weeks, that’s very rapid. It may be that the progesterone that they’re using is very potent. Progestins can have some negative effects on lipids and mood. We didn’t really see the safety data in this presentation. So that will be interesting to see.”

During the briefing, Dr. Blithe said that the phase 2b trial is expected to finish by the end of this year, and in the meantime, the researchers are communicating with the US Food and Drug Administration about the design of a phase 3 trial because this is an unprecedented area. “They don’t have guidelines yet. They’ll need to develop them first.”

Dr. Blithe has been the NICHD principal investigator on cooperative research and development agreements with HRA Pharma and Daré Bioscience. Dr. Hayes had no disclosures.

A version of this article appeared on Medscape.com .

BOSTON — An investigational male contraceptive gel suppresses sperm more rapidly than previous products in development, new data suggested.

The product, 8 mg segesterone acetate (Nestorone) combined with 74 mg testosterone (“NesT”) is a gel that a man applies daily to both shoulders. The progesterone blocks spermatogenesis, and the testosterone restores blood levels to maintain sexual function. It is under development by the National Institute of Child Health and Human Development (NICHD) in collaboration with the Population Council, the Los Angeles Biomedical Research Institute, and the University of Washington School of Medicine.

Currently, the only available male contraceptives are vasectomy, which isn’t easily reversible, and condoms, which have a high failure rate. Previous attempts to develop a “male pill” have been unsuccessful for a variety of reasons, but so far, this product appears effective and safe, Diana Blithe, PhD, chief of the Contraceptive Development Program at NICHD, said at a press briefing held on June 2, 2024, during the annual meeting of the Endocrine Society.

“It’s been a long time coming. … Men need and want more contraceptive options such as an effective reversible method,” she told this news organization.

New phase 2b data show that among 222 couples in which the man initially had normal (> 15 million/mL) sperm counts, the median time to suppression (< 1 million/mL) was less than 8 weeks with NesT compared with 9-15 weeks seen in previous trials of injected male hormonal contraceptives. Nearly all (86%) had achieved suppression by 15 weeks.

After two consecutive counts of < 1 million/mL, the couples entered the trial’s ongoing 2-year efficacy phase. There have been no major safety concerns thus far, but “we need more data,” Dr. Blithe noted.

Asked to comment, session moderator Frances Hayes, MBBCh, associate clinical chief of the Division of Reproductive Endocrinology at Massachusetts General Hospital, Boston, said, “certainly, I think it’s a big advance on what we have so far. … I think it’s showing great promise.”

Dr. Hayes did caution, though, that “with real-world use, daily application of a gel might be a bit more challenging than taking an injection…an injection is more consistent. With a gel, patients might forget or shower it off. But I don’t think 1 day of interruption would be a significant thing.”

Transference of the topical to a partner or a child is another potential concern, Dr. Hayes noted, although this is true of current testosterone gel products as well. During the briefing, Dr. Blithe said that this issue is why the product is recommended to be placed on the upper arms rather than the abdomen or another spot more likely to come into contact with another person. Also, in the trial, men were instructed to wear shirts during intercourse.

Regarding the rapidity of sperm suppression, Dr. Hayes said, “It’s surprising. It looks great as a reversible contraceptive. … Normally, you think of the life cycle of the sperm being about 72 days. So to see 50% suppression by 8 weeks, and then 85%-90% by 15 weeks, that’s very rapid. It may be that the progesterone that they’re using is very potent. Progestins can have some negative effects on lipids and mood. We didn’t really see the safety data in this presentation. So that will be interesting to see.”

During the briefing, Dr. Blithe said that the phase 2b trial is expected to finish by the end of this year, and in the meantime, the researchers are communicating with the US Food and Drug Administration about the design of a phase 3 trial because this is an unprecedented area. “They don’t have guidelines yet. They’ll need to develop them first.”

Dr. Blithe has been the NICHD principal investigator on cooperative research and development agreements with HRA Pharma and Daré Bioscience. Dr. Hayes had no disclosures.

A version of this article appeared on Medscape.com .

BOSTON — An investigational male contraceptive gel suppresses sperm more rapidly than previous products in development, new data suggested.

The product, 8 mg segesterone acetate (Nestorone) combined with 74 mg testosterone (“NesT”) is a gel that a man applies daily to both shoulders. The progesterone blocks spermatogenesis, and the testosterone restores blood levels to maintain sexual function. It is under development by the National Institute of Child Health and Human Development (NICHD) in collaboration with the Population Council, the Los Angeles Biomedical Research Institute, and the University of Washington School of Medicine.

Currently, the only available male contraceptives are vasectomy, which isn’t easily reversible, and condoms, which have a high failure rate. Previous attempts to develop a “male pill” have been unsuccessful for a variety of reasons, but so far, this product appears effective and safe, Diana Blithe, PhD, chief of the Contraceptive Development Program at NICHD, said at a press briefing held on June 2, 2024, during the annual meeting of the Endocrine Society.

“It’s been a long time coming. … Men need and want more contraceptive options such as an effective reversible method,” she told this news organization.

New phase 2b data show that among 222 couples in which the man initially had normal (> 15 million/mL) sperm counts, the median time to suppression (< 1 million/mL) was less than 8 weeks with NesT compared with 9-15 weeks seen in previous trials of injected male hormonal contraceptives. Nearly all (86%) had achieved suppression by 15 weeks.

After two consecutive counts of < 1 million/mL, the couples entered the trial’s ongoing 2-year efficacy phase. There have been no major safety concerns thus far, but “we need more data,” Dr. Blithe noted.

Asked to comment, session moderator Frances Hayes, MBBCh, associate clinical chief of the Division of Reproductive Endocrinology at Massachusetts General Hospital, Boston, said, “certainly, I think it’s a big advance on what we have so far. … I think it’s showing great promise.”

Dr. Hayes did caution, though, that “with real-world use, daily application of a gel might be a bit more challenging than taking an injection…an injection is more consistent. With a gel, patients might forget or shower it off. But I don’t think 1 day of interruption would be a significant thing.”

Transference of the topical to a partner or a child is another potential concern, Dr. Hayes noted, although this is true of current testosterone gel products as well. During the briefing, Dr. Blithe said that this issue is why the product is recommended to be placed on the upper arms rather than the abdomen or another spot more likely to come into contact with another person. Also, in the trial, men were instructed to wear shirts during intercourse.

Regarding the rapidity of sperm suppression, Dr. Hayes said, “It’s surprising. It looks great as a reversible contraceptive. … Normally, you think of the life cycle of the sperm being about 72 days. So to see 50% suppression by 8 weeks, and then 85%-90% by 15 weeks, that’s very rapid. It may be that the progesterone that they’re using is very potent. Progestins can have some negative effects on lipids and mood. We didn’t really see the safety data in this presentation. So that will be interesting to see.”

During the briefing, Dr. Blithe said that the phase 2b trial is expected to finish by the end of this year, and in the meantime, the researchers are communicating with the US Food and Drug Administration about the design of a phase 3 trial because this is an unprecedented area. “They don’t have guidelines yet. They’ll need to develop them first.”

Dr. Blithe has been the NICHD principal investigator on cooperative research and development agreements with HRA Pharma and Daré Bioscience. Dr. Hayes had no disclosures.

A version of this article appeared on Medscape.com .

TOPLINE:

Investigators found that the use of oral contraceptives (OCs) may be associated with an increased risk for frontal fibrosing alopecia (FFA) in women with a common variant in the CYP1B1 gene.

METHODOLOGY:

• OC use has been considered a possible factor behind the increased incidence of FFA because it was first documented in 1994, and a recent genome-wide association study of FFA identified a signal for an association with a variant in CYP1B1.
• The same researchers conducted a gene-environment interaction study with a case-control design involving 489 White female patients (mean age, 65.8 years) with FFA and 34,254 controls, matched for age and genetic ancestry.
• Data were collected from July 2015 to September 2017 and analyzed from October 2022 to December 2023.
• The study aimed to investigate the modulatory effect of OC use on the CYP1B1 variant’s impact on FFA risk, using logistic regression models for analysis.

TAKEAWAY:

• The use of OCs was associated with a 1.9 times greater risk for FFA in individuals with the specific CYP1B1 genetic variant, but there was no association among those with no history of OC use.
• The study suggests a significant gene-environment interaction, indicating that OC use may influence FFA risk in genetically predisposed individuals.

IN PRACTICE:

“This gene-environment interaction analysis suggests that the protective effect of the CYPIB1 missense variant on FFA risk might be mediated by exposure” to OCs, the authors wrote. The study, they added, “underscores the importance of considering genetic predispositions and environmental factors, such as oral contraceptive use, in understanding and managing frontal fibrosing alopecia.”

SOURCE:

Tuntas Rayinda, MD, MSc, PhD, of St. John’s Institute of Dermatology, King’s College London, led the study, which was published online May 29, 2024, in JAMA Dermatology.

LIMITATIONS:

The study’s reliance on self-reported OC use may have introduced recall and differences in ascertainment of OC use between patient and control groups and could have affected the study’s findings. The study also did not collect information on the type of OC used, which could have influenced the observed interaction.

DISCLOSURES:

The study was supported by the British Skin Foundation Young Investigator Award. One investigator reported being a subinvestigator on an alopecia areata study funded by Pfizer. No other disclosures were reported.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. 

A version of this article appeared on Medscape.com.

TOPLINE:

Investigators found that the use of oral contraceptives (OCs) may be associated with an increased risk for frontal fibrosing alopecia (FFA) in women with a common variant in the CYP1B1 gene.

METHODOLOGY:

• OC use has been considered a possible factor behind the increased incidence of FFA because it was first documented in 1994, and a recent genome-wide association study of FFA identified a signal for an association with a variant in CYP1B1.
• The same researchers conducted a gene-environment interaction study with a case-control design involving 489 White female patients (mean age, 65.8 years) with FFA and 34,254 controls, matched for age and genetic ancestry.
• Data were collected from July 2015 to September 2017 and analyzed from October 2022 to December 2023.
• The study aimed to investigate the modulatory effect of OC use on the CYP1B1 variant’s impact on FFA risk, using logistic regression models for analysis.

TAKEAWAY:

• The use of OCs was associated with a 1.9 times greater risk for FFA in individuals with the specific CYP1B1 genetic variant, but there was no association among those with no history of OC use.
• The study suggests a significant gene-environment interaction, indicating that OC use may influence FFA risk in genetically predisposed individuals.

IN PRACTICE:

“This gene-environment interaction analysis suggests that the protective effect of the CYPIB1 missense variant on FFA risk might be mediated by exposure” to OCs, the authors wrote. The study, they added, “underscores the importance of considering genetic predispositions and environmental factors, such as oral contraceptive use, in understanding and managing frontal fibrosing alopecia.”

SOURCE:

Tuntas Rayinda, MD, MSc, PhD, of St. John’s Institute of Dermatology, King’s College London, led the study, which was published online May 29, 2024, in JAMA Dermatology.

LIMITATIONS:

The study’s reliance on self-reported OC use may have introduced recall and differences in ascertainment of OC use between patient and control groups and could have affected the study’s findings. The study also did not collect information on the type of OC used, which could have influenced the observed interaction.

DISCLOSURES:

The study was supported by the British Skin Foundation Young Investigator Award. One investigator reported being a subinvestigator on an alopecia areata study funded by Pfizer. No other disclosures were reported.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. 

A version of this article appeared on Medscape.com.

TOPLINE:

Investigators found that the use of oral contraceptives (OCs) may be associated with an increased risk for frontal fibrosing alopecia (FFA) in women with a common variant in the CYP1B1 gene.

METHODOLOGY:

• OC use has been considered a possible factor behind the increased incidence of FFA because it was first documented in 1994, and a recent genome-wide association study of FFA identified a signal for an association with a variant in CYP1B1.
• The same researchers conducted a gene-environment interaction study with a case-control design involving 489 White female patients (mean age, 65.8 years) with FFA and 34,254 controls, matched for age and genetic ancestry.
• Data were collected from July 2015 to September 2017 and analyzed from October 2022 to December 2023.
• The study aimed to investigate the modulatory effect of OC use on the CYP1B1 variant’s impact on FFA risk, using logistic regression models for analysis.

TAKEAWAY:

• The use of OCs was associated with a 1.9 times greater risk for FFA in individuals with the specific CYP1B1 genetic variant, but there was no association among those with no history of OC use.
• The study suggests a significant gene-environment interaction, indicating that OC use may influence FFA risk in genetically predisposed individuals.

IN PRACTICE:

“This gene-environment interaction analysis suggests that the protective effect of the CYPIB1 missense variant on FFA risk might be mediated by exposure” to OCs, the authors wrote. The study, they added, “underscores the importance of considering genetic predispositions and environmental factors, such as oral contraceptive use, in understanding and managing frontal fibrosing alopecia.”

SOURCE:

Tuntas Rayinda, MD, MSc, PhD, of St. John’s Institute of Dermatology, King’s College London, led the study, which was published online May 29, 2024, in JAMA Dermatology.

LIMITATIONS:

The study’s reliance on self-reported OC use may have introduced recall and differences in ascertainment of OC use between patient and control groups and could have affected the study’s findings. The study also did not collect information on the type of OC used, which could have influenced the observed interaction.

DISCLOSURES:

The study was supported by the British Skin Foundation Young Investigator Award. One investigator reported being a subinvestigator on an alopecia areata study funded by Pfizer. No other disclosures were reported.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. 

A version of this article appeared on Medscape.com.

Most younger women diagnosed with nonmetastatic breast cancer will succeed if they attempt to become pregnant after treatment, according to new research.

The findings, presented May 23 in advance of the annual meeting of the American Society of Clinical Oncology (ASCO) represent the most comprehensive look to date at fertility outcomes following treatment for women diagnosed with breast cancer before age 40 (Abstract 1518).

Kimia Sorouri, MD, a research fellow at the Dana-Farber Cancer Center in Boston, Massachusetts, and her colleagues, looked at data from the Young Women’s Breast Cancer study, a multicenter longitudinal cohort study, for 1213 U.S. and Canadian women (74% non-Hispanic white) who were diagnosed with stages 0-III breast cancer between 2006 and 2016. None of the included patients had metastatic disease, prior hysterectomy, or prior oophorectomy at diagnosis.

During a median 11 years of follow up, 197 of the women reported attempting pregnancy. Of these, 73% reported becoming pregnant, and 65% delivered a live infant a median 4 years after cancer diagnosis. The median age at diagnosis was 32 years, and 28% opted for egg or embryo freezing to preserve fertility. Importantly, 68% received chemotherapy, which can impair fertility, with only a small percentage undergoing ovarian suppression during chemotherapy treatment.

Key predictors of pregnancy or live birth in this study were “financial comfort,” a self-reported measure defined as having money left over to spend after bills are paid (odds ratio [OR], 2.04; 95% CI 1.01-4.12; P = .047); younger age at the time of diagnosis; and undergoing fertility preservation interventions at diagnosis (OR, 2.78; 95% CI 1.29-6.00; P = .009). Chemotherapy and other treatment factors were not seen to be associated with pregnancy or birth outcomes.

“Current research that informs our understanding of the impact of breast cancer treatment on pregnancy and live birth rates is fairly limited,” Dr. Sorouri said during an online press conference announcing the findings. Quality data on fertility outcomes has been limited to studies in certain subgroups, such as women with estrogen receptor–positive breast cancers, she noted, while other studies “have short-term follow-up and critically lack prospective assessment of attempt at conception.”

The new findings show, Dr. Sorouri said, “that in this modern cohort with a heightened awareness of fertility, access to fertility preservation can help to mitigate a portion of the damage from chemotherapy and other agents. Importantly, this highlights the need for increased accessibility of fertility preservation services for women newly diagnosed with breast cancer who are interested in a future pregnancy.”

Commenting on Dr. Sorouri and colleagues’ findings, Julie Gralow, MD, a breast cancer researcher and ASCO’s chief medical officer, stressed that, while younger age at diagnosis and financial comfort were two factors outside the scope of clinical oncology practice, “we can impact fertility preservation prior to treatment.”

She called it “critical” that every patient be informed of the impact of a breast cancer diagnosis and treatment on future fertility, and that all young patients interested in future fertility be offered fertility preservation prior to beginning treatment.

Ann Partridge, MD, of Dana-Farber, said in an interview that the findings reflected a decades’ long change in approach. “Twenty years ago when we first started this cohort, people would tell women ‘you can’t get pregnant. It’s too dangerous. You won’t be able to.’ And some indeed aren’t able to, but the majority who are attempting are succeeding, especially if they preserve their eggs or embryos. So even if chemo puts you into menopause or made you subfertile, if you’ve preserved eggs or embryos, we now can mitigate that distressing effect that many cancer patients have suffered from historically. That’s the good news here.”

Nonetheless, Dr. Partridge, an oncologist and the last author of the study, noted, the results reflected success only for women actively attempting pregnancy. “Remember, we’re not including the people who didn’t attempt. There may be some who went into menopause who never banked eggs or embryos, and may never have tried because they went to a doctor who told them they’re not fertile.” Further, she said, not all insurances cover in vitro fertilization for women who have had breast cancer.

The fact that financial comfort was correlated with reproductive success, Dr. Partridge said, speaks to broader issues about access. “It may not be all about insurers. It may be to have the ability, to have the time, the education and the wherewithal to do this right — and about being with doctors who talk about it.”

Dr. Sorouri and colleagues’ study was sponsored by the Breast Cancer Research Foundation and Susan G. Komen. Several co-authors disclosed receiving speaking and/or consulting fees from pharmaceutical companies, and one reported being an employee of GlaxoSmithKline. Dr. Sorouri reported no industry funding, while Dr. Partridge reported research funding from Novartis.

Most younger women diagnosed with nonmetastatic breast cancer will succeed if they attempt to become pregnant after treatment, according to new research.

The findings, presented May 23 in advance of the annual meeting of the American Society of Clinical Oncology (ASCO) represent the most comprehensive look to date at fertility outcomes following treatment for women diagnosed with breast cancer before age 40 (Abstract 1518).

Kimia Sorouri, MD, a research fellow at the Dana-Farber Cancer Center in Boston, Massachusetts, and her colleagues, looked at data from the Young Women’s Breast Cancer study, a multicenter longitudinal cohort study, for 1213 U.S. and Canadian women (74% non-Hispanic white) who were diagnosed with stages 0-III breast cancer between 2006 and 2016. None of the included patients had metastatic disease, prior hysterectomy, or prior oophorectomy at diagnosis.

During a median 11 years of follow up, 197 of the women reported attempting pregnancy. Of these, 73% reported becoming pregnant, and 65% delivered a live infant a median 4 years after cancer diagnosis. The median age at diagnosis was 32 years, and 28% opted for egg or embryo freezing to preserve fertility. Importantly, 68% received chemotherapy, which can impair fertility, with only a small percentage undergoing ovarian suppression during chemotherapy treatment.

Key predictors of pregnancy or live birth in this study were “financial comfort,” a self-reported measure defined as having money left over to spend after bills are paid (odds ratio [OR], 2.04; 95% CI 1.01-4.12; P = .047); younger age at the time of diagnosis; and undergoing fertility preservation interventions at diagnosis (OR, 2.78; 95% CI 1.29-6.00; P = .009). Chemotherapy and other treatment factors were not seen to be associated with pregnancy or birth outcomes.

“Current research that informs our understanding of the impact of breast cancer treatment on pregnancy and live birth rates is fairly limited,” Dr. Sorouri said during an online press conference announcing the findings. Quality data on fertility outcomes has been limited to studies in certain subgroups, such as women with estrogen receptor–positive breast cancers, she noted, while other studies “have short-term follow-up and critically lack prospective assessment of attempt at conception.”

The new findings show, Dr. Sorouri said, “that in this modern cohort with a heightened awareness of fertility, access to fertility preservation can help to mitigate a portion of the damage from chemotherapy and other agents. Importantly, this highlights the need for increased accessibility of fertility preservation services for women newly diagnosed with breast cancer who are interested in a future pregnancy.”

Commenting on Dr. Sorouri and colleagues’ findings, Julie Gralow, MD, a breast cancer researcher and ASCO’s chief medical officer, stressed that, while younger age at diagnosis and financial comfort were two factors outside the scope of clinical oncology practice, “we can impact fertility preservation prior to treatment.”

She called it “critical” that every patient be informed of the impact of a breast cancer diagnosis and treatment on future fertility, and that all young patients interested in future fertility be offered fertility preservation prior to beginning treatment.

Ann Partridge, MD, of Dana-Farber, said in an interview that the findings reflected a decades’ long change in approach. “Twenty years ago when we first started this cohort, people would tell women ‘you can’t get pregnant. It’s too dangerous. You won’t be able to.’ And some indeed aren’t able to, but the majority who are attempting are succeeding, especially if they preserve their eggs or embryos. So even if chemo puts you into menopause or made you subfertile, if you’ve preserved eggs or embryos, we now can mitigate that distressing effect that many cancer patients have suffered from historically. That’s the good news here.”

Nonetheless, Dr. Partridge, an oncologist and the last author of the study, noted, the results reflected success only for women actively attempting pregnancy. “Remember, we’re not including the people who didn’t attempt. There may be some who went into menopause who never banked eggs or embryos, and may never have tried because they went to a doctor who told them they’re not fertile.” Further, she said, not all insurances cover in vitro fertilization for women who have had breast cancer.

The fact that financial comfort was correlated with reproductive success, Dr. Partridge said, speaks to broader issues about access. “It may not be all about insurers. It may be to have the ability, to have the time, the education and the wherewithal to do this right — and about being with doctors who talk about it.”

Dr. Sorouri and colleagues’ study was sponsored by the Breast Cancer Research Foundation and Susan G. Komen. Several co-authors disclosed receiving speaking and/or consulting fees from pharmaceutical companies, and one reported being an employee of GlaxoSmithKline. Dr. Sorouri reported no industry funding, while Dr. Partridge reported research funding from Novartis.

Most younger women diagnosed with nonmetastatic breast cancer will succeed if they attempt to become pregnant after treatment, according to new research.

The findings, presented May 23 in advance of the annual meeting of the American Society of Clinical Oncology (ASCO) represent the most comprehensive look to date at fertility outcomes following treatment for women diagnosed with breast cancer before age 40 (Abstract 1518).

Kimia Sorouri, MD, a research fellow at the Dana-Farber Cancer Center in Boston, Massachusetts, and her colleagues, looked at data from the Young Women’s Breast Cancer study, a multicenter longitudinal cohort study, for 1213 U.S. and Canadian women (74% non-Hispanic white) who were diagnosed with stages 0-III breast cancer between 2006 and 2016. None of the included patients had metastatic disease, prior hysterectomy, or prior oophorectomy at diagnosis.

During a median 11 years of follow up, 197 of the women reported attempting pregnancy. Of these, 73% reported becoming pregnant, and 65% delivered a live infant a median 4 years after cancer diagnosis. The median age at diagnosis was 32 years, and 28% opted for egg or embryo freezing to preserve fertility. Importantly, 68% received chemotherapy, which can impair fertility, with only a small percentage undergoing ovarian suppression during chemotherapy treatment.

Key predictors of pregnancy or live birth in this study were “financial comfort,” a self-reported measure defined as having money left over to spend after bills are paid (odds ratio [OR], 2.04; 95% CI 1.01-4.12; P = .047); younger age at the time of diagnosis; and undergoing fertility preservation interventions at diagnosis (OR, 2.78; 95% CI 1.29-6.00; P = .009). Chemotherapy and other treatment factors were not seen to be associated with pregnancy or birth outcomes.

“Current research that informs our understanding of the impact of breast cancer treatment on pregnancy and live birth rates is fairly limited,” Dr. Sorouri said during an online press conference announcing the findings. Quality data on fertility outcomes has been limited to studies in certain subgroups, such as women with estrogen receptor–positive breast cancers, she noted, while other studies “have short-term follow-up and critically lack prospective assessment of attempt at conception.”

The new findings show, Dr. Sorouri said, “that in this modern cohort with a heightened awareness of fertility, access to fertility preservation can help to mitigate a portion of the damage from chemotherapy and other agents. Importantly, this highlights the need for increased accessibility of fertility preservation services for women newly diagnosed with breast cancer who are interested in a future pregnancy.”

Commenting on Dr. Sorouri and colleagues’ findings, Julie Gralow, MD, a breast cancer researcher and ASCO’s chief medical officer, stressed that, while younger age at diagnosis and financial comfort were two factors outside the scope of clinical oncology practice, “we can impact fertility preservation prior to treatment.”

She called it “critical” that every patient be informed of the impact of a breast cancer diagnosis and treatment on future fertility, and that all young patients interested in future fertility be offered fertility preservation prior to beginning treatment.

Ann Partridge, MD, of Dana-Farber, said in an interview that the findings reflected a decades’ long change in approach. “Twenty years ago when we first started this cohort, people would tell women ‘you can’t get pregnant. It’s too dangerous. You won’t be able to.’ And some indeed aren’t able to, but the majority who are attempting are succeeding, especially if they preserve their eggs or embryos. So even if chemo puts you into menopause or made you subfertile, if you’ve preserved eggs or embryos, we now can mitigate that distressing effect that many cancer patients have suffered from historically. That’s the good news here.”

Nonetheless, Dr. Partridge, an oncologist and the last author of the study, noted, the results reflected success only for women actively attempting pregnancy. “Remember, we’re not including the people who didn’t attempt. There may be some who went into menopause who never banked eggs or embryos, and may never have tried because they went to a doctor who told them they’re not fertile.” Further, she said, not all insurances cover in vitro fertilization for women who have had breast cancer.

The fact that financial comfort was correlated with reproductive success, Dr. Partridge said, speaks to broader issues about access. “It may not be all about insurers. It may be to have the ability, to have the time, the education and the wherewithal to do this right — and about being with doctors who talk about it.”

Dr. Sorouri and colleagues’ study was sponsored by the Breast Cancer Research Foundation and Susan G. Komen. Several co-authors disclosed receiving speaking and/or consulting fees from pharmaceutical companies, and one reported being an employee of GlaxoSmithKline. Dr. Sorouri reported no industry funding, while Dr. Partridge reported research funding from Novartis.

Five experts discussed research that they considered to be highlights of the European Society of Medical Oncology (ESMO) Breast Cancer annual congress during a “Key Takeaways” session at the meeting.

Among the topics the speakers addressed were breast cancer prevention, early breast cancer, advanced breast cancer, and supportive care.

In recent years, the way clinicians look at carcinogenesis in breast cancer has changed, and many new targets for potential early detection and prevention have emerged, said Suzette Delaloge, MD, of Gustave Roussy, Paris, France, in her presentation at the meeting.

Instant risk assessment at different time points could potentially intercept cancer among high-risk individuals, she said.

A study by Mikael Eriksson, PhD, and colleagues focused on external validation of the Profound AI tool to identify breast cancer risk in the general population. The researchers showed an area under the curve of 0.72 in their AI risk model, which has the potential to be clinically meaningful, although it must be prospectively validated, Dr. Delaloge said in her presentation.

She also reviewed two studies on the use of genes to further refine breast cancer risk among carriers. One of these, a prospective study presented in a session by Kelly-Anne Phillips, MD, of Peter MacCallum Cancer Center, Melbourne, Australia, used the CANRISK online risk assessment tool and validated increased breast cancer risk in BRCA1 and BRCA2 carriers, with AUCs of 0.79 and 0.78, respectively. The other study, which was by Maria Rezqallah Aron, MD, and colleagues examined polygenic scores as a way to refine breast cancer risk stratification among carriers of the ALM and PALB2 genes as well. These genes might be useful in identifying individuals who could benefit from early intervention, including surgery, Dr. Delaloge said.
 

Translational Research

“Preparing my talk, I felt like a kid in a candy store,” because of the amount of new translational research presented, including several studies of endocrine treatment–based approaches to therapy, said Marleen Kok, MD, of the Netherlands Cancer Institute, Amsterdam.

In her presentation, Dr. Kok highlighted findings from an analysis of patients in the monarchE study (a trial of high-risk patients) showing a consistent improvement in invasive disease-free survival for the subset of patients with germline BRCA1 and BRCA2 mutations who received abemaciclib plus endocrine therapy.

The value of tumor-infiltrating lymphocytes (TILs) on patients who are not receiving chemotherapy is important because of the focus on prognosis, and prospective trials are underway, she said.

A poster on the impact of chemotherapy and stromal tumor-infiltrating lymphocytes (sTILs) in stage I triple-negative breast cancer showed no association between chemotherapy and better outcomes regardless of sTILs in patients who did and did not receive chemotherapy, which has implications for potential treatment sparing in this population, Dr. Kok noted.

Artificial Intelligence (AI) was the subject of several posters at the meeting, and Dr. Kok identified a multisite European study of an automated HER2 scoring system as notable for its size and accuracy. In the study, the accuracy among pathologists was much higher with the assistance of AI, she said. Using AI for more complex analysis has shown success, she said.

Dr. Kok ended her talk with a poster that surveyed breast cancer patients about their understanding of their disease. The results showed that less than half (44%) of patients reported that their healthcare providers had given them enough information to learn about their breast cancer type, and less than one third could recall terminology about biomarkers; the study is important because it shows that clinicians need to do better in explaining these terms to patients, Dr. Kok said.
 

Early Breast Cancer

Right-sizing therapy, meaning identifying the right treatment for every patient, is a key element of new research in early breast cancer, said Erika Hamilton, MD, of the Sarah Cannon Research Institute, Nashville, Tenn.

She highlighted safety and treatment duration updates from the NATALEE study, which compared adjuvant ribociclib plus nonsteroidal aromatase inhibitor (NSAI) to NSAI alone for ER+/HER2- breast cancer. The current analysis presented at the meeting showed significant benefits with the addition of ribociclib and no evidence of new safety signals or adverse event exacerbations at 3 years, she said. Dose modifications had no significant impact on efficacy, she added.

The findings of no impact of dose reduction on efficacy in both the NATALEE and monarchE studies provide important information on whether dosage can be reduced in patients, which will increase the odds that patients will tolerate extended therapy with good outcomes and stay on their prescribed therapies, Dr. Hamilton emphasized.

The CARABELA study, a phase 2 trial of neoadjuvant letrozole plus abemaciclib vs adriamycin and cyclophosphamide (AC), showed clinically similar response rates but did not meet its endpoint for residual cancer burden (RCB) scores. These data add to results from other studies and show that it is too soon to universally replace neoadjuvant chemotherapy as first-line treatment for highly proliferative ER+ breast cancer, Dr. Hamilton said in her presentation.
 

Advanced Breast Cancer

Take-home messages about advanced breast cancer include growing evidence for the potential benefits of antibody drug conjugates (ADCs), said Eva Ciruelos, MD, of University Hospital, Madrid, Spain. The TROPION-BREAST01 study, a phase 3 randomized trial, showed significant and clinically meaningful improvement in progression-free survival in patients with previously treated, inoperable, or metastatic HR+/HER2- breast cancer who received datopotamab deruxtecan (Dato-DXd) compared with those who received chemotherapy.

Data from an additional safety analysis were presented at the meeting; although Dato-DXd, a trophoblast cell-surface antigen 2 (TROP2)–directed antibody-drug conjugate, was well-tolerated, it is important to remain aware of toxicities, notably oral mucositis, which occurred in 55.6% of the patients in the study across all grades, and ocular surface toxicity, which occurred in 40% of patients across all grades, Dr. Ciruelos emphasized.

Key research in the area of advanced triple-negative breast cancer included data from the IMPASSION 132 study. This study is “specifically centered on early relapsers,” a population often excluded from other trials, Dr. Ciruelos said. In this study, patients with advanced triple-negative breast cancer were randomized to chemotherapy with or without atezolizumab, and the study showed no benefits with atezolizumab for overall survival, progression-free survival, or overall response rate, she said. “This is something to work with, because this is a very refractory population,” Dr. Ciruelos noted.

New immunotherapy combinations are needed to improve survival in advanced breast cancer patients, Dr. Ciruelos said. At the meeting, researchers presented interim data from a subset of patients in the MORPHEUS-pan breast cancer trial, a phase 1B/2 study involving multiple treatment combinations in locally advanced/metastatic breast cancer patients.

The interim analysis included 18-week data from triple-negative breast cancer patients and compared outcomes for patients randomized to atezolizumab with or without sacituzumab govitecan (SG).

The study was small, with only 31 patients in the combination arm and 11 controls, but the results were promising, with an overall response rate of 76.7% in the combination arm vs 66.7% in the control arm, Dr. Ciruelos said.

Supportive Care

Key supportive care takeaways included data on pregnancy in young breast cancer survivors and the safety of vaginal estrogen therapy in breast cancer patients with genitourinary symptoms, said Anne May, MD, of the University Medical Center Utrecht, Utrecht, Netherlands.

A study previously published in JAMA including nearly 5000 BRCA carriers who were diagnosed with invasive breast cancer at age 40 years or younger showed no association between pregnancy after breast cancer and adverse maternal or fetal outcomes, and pregnancy had no significant impact on overall survival. The authors presented new data on the safety of assisted reproductive techniques (ART) based on the 543 pregnancies in the original study, at the meeting. Of these, 436 conceived naturally, and 107 used ART. After a median of 9.1 years, ART had no effect on disease-free survival compared to natural conception (hazard ratio [HR], 0.64). Based on these findings, fertility preservation should be offered to all women who receive a breast cancer diagnosis and are interested in future fertility, Dr. May said.

Conceiving after breast cancer treatment and follow-up should not be contraindicated for young BRCA carriers, she added.No trial data are available for the effects of vaginal estrogen therapy (VET) on disease-free survival in breast cancer survivors with genitourinary symptoms caused by declining estrogen levels, Dr. May said. However, researchers in France and Switzerland conducted an emulation of a hypothetical target trial using data from the French National social security system for more than 130,000 individuals. Although VET therapy had no impact on disease-free survival in most breast cancer survivors overall, it did have a negative impact in a subset of patients with HR-positive and HR-negative tumors who were treated with aromatase inhibitors. The study was hypothetical, but important because the results suggest that clinicians can safely propose VTE to patients who report genitourinary symptoms after treatment for early-stage breast cancer with tamoxifen, but VTE should be avoided in patients treated with aromatase inhibitors, Dr. May said.

Dr. Delaloge disclosed research support to her institution from AstraZeneca, MSD, Bristol Myers Squibb, Sanofi, Taiho, Novartis, European Commission, INCa, Banque des Territoires, and Fondation Philanthropia. She also disclosed honoraria to her institution from AstraZeneca, Gilead, Novartis, Elsan, Besins, Sanofi, Exact Sciences, and Lilly, as well as travel support from Novartis.

Dr. Kok disclosed research funding from AstraZeneca, Bristol Myers Squibb, Daichi, and Roche, and advisory board membership/speaker’s fees from Alderaan Biotechnology, BIONTECH, Domain Therapeutics, AstraZeneca, Daichi, Bristol Myers Squibb, Gilead, Medscape, MSD, and Roche.

Dr. Hamilton disclosed a consulting advisory role (to her institution) for Accutar Biotechology, AstraZeneca, Daiichi Sankyo, Ellipses Pharma, Entos, Forsum Pharma, Gilead Sciences, Greenwich LifeSciences, Jazz Pharmaceuticals, Lilly, Medical Pharma Services, Mersana, Novartis, Olema Pharmaceuticals, Orum Therapeutics, Roche/Genentech, Stemline Therapeutics, ands others. She also disclosed contracted research/grant support to her institution only from Abbvie, Acerta Pharma, Accutar Biotechnology , ADC Therapeutics, AKESOBIO Australia , Amgen, Aravive, ArQule, Artios, Arvinas, AstraZeneca, AtlasMedx, BeiGene, Black Diamond and others.

Dr. Ciruelos disclosed serving as an external advisor for Roche, MSD, Gilead, AstraZeneca, Daichii Sankyo, Reveal Genomics, Pfizer, Novartis, and Lilly, as well as serving as a speaker for Roche, MSD, Gilead, AstraZeneca, Daichii Sankyo, Reveal Genomics, Pfizer, Novartis, Lilly, and Pierre Fabre. She also disclosed travel grants from Roche, Pfizer, and AstraZeneca, and research grants from Seagen and Roche.

Dr. May had no financial conflicts to disclose.

Five experts discussed research that they considered to be highlights of the European Society of Medical Oncology (ESMO) Breast Cancer annual congress during a “Key Takeaways” session at the meeting.

Among the topics the speakers addressed were breast cancer prevention, early breast cancer, advanced breast cancer, and supportive care.

In recent years, the way clinicians look at carcinogenesis in breast cancer has changed, and many new targets for potential early detection and prevention have emerged, said Suzette Delaloge, MD, of Gustave Roussy, Paris, France, in her presentation at the meeting.

Instant risk assessment at different time points could potentially intercept cancer among high-risk individuals, she said.

A study by Mikael Eriksson, PhD, and colleagues focused on external validation of the Profound AI tool to identify breast cancer risk in the general population. The researchers showed an area under the curve of 0.72 in their AI risk model, which has the potential to be clinically meaningful, although it must be prospectively validated, Dr. Delaloge said in her presentation.

She also reviewed two studies on the use of genes to further refine breast cancer risk among carriers. One of these, a prospective study presented in a session by Kelly-Anne Phillips, MD, of Peter MacCallum Cancer Center, Melbourne, Australia, used the CANRISK online risk assessment tool and validated increased breast cancer risk in BRCA1 and BRCA2 carriers, with AUCs of 0.79 and 0.78, respectively. The other study, which was by Maria Rezqallah Aron, MD, and colleagues examined polygenic scores as a way to refine breast cancer risk stratification among carriers of the ALM and PALB2 genes as well. These genes might be useful in identifying individuals who could benefit from early intervention, including surgery, Dr. Delaloge said.
 

Translational Research

“Preparing my talk, I felt like a kid in a candy store,” because of the amount of new translational research presented, including several studies of endocrine treatment–based approaches to therapy, said Marleen Kok, MD, of the Netherlands Cancer Institute, Amsterdam.

In her presentation, Dr. Kok highlighted findings from an analysis of patients in the monarchE study (a trial of high-risk patients) showing a consistent improvement in invasive disease-free survival for the subset of patients with germline BRCA1 and BRCA2 mutations who received abemaciclib plus endocrine therapy.

The value of tumor-infiltrating lymphocytes (TILs) on patients who are not receiving chemotherapy is important because of the focus on prognosis, and prospective trials are underway, she said.

A poster on the impact of chemotherapy and stromal tumor-infiltrating lymphocytes (sTILs) in stage I triple-negative breast cancer showed no association between chemotherapy and better outcomes regardless of sTILs in patients who did and did not receive chemotherapy, which has implications for potential treatment sparing in this population, Dr. Kok noted.

Artificial Intelligence (AI) was the subject of several posters at the meeting, and Dr. Kok identified a multisite European study of an automated HER2 scoring system as notable for its size and accuracy. In the study, the accuracy among pathologists was much higher with the assistance of AI, she said. Using AI for more complex analysis has shown success, she said.

Dr. Kok ended her talk with a poster that surveyed breast cancer patients about their understanding of their disease. The results showed that less than half (44%) of patients reported that their healthcare providers had given them enough information to learn about their breast cancer type, and less than one third could recall terminology about biomarkers; the study is important because it shows that clinicians need to do better in explaining these terms to patients, Dr. Kok said.
 

Early Breast Cancer

Right-sizing therapy, meaning identifying the right treatment for every patient, is a key element of new research in early breast cancer, said Erika Hamilton, MD, of the Sarah Cannon Research Institute, Nashville, Tenn.

She highlighted safety and treatment duration updates from the NATALEE study, which compared adjuvant ribociclib plus nonsteroidal aromatase inhibitor (NSAI) to NSAI alone for ER+/HER2- breast cancer. The current analysis presented at the meeting showed significant benefits with the addition of ribociclib and no evidence of new safety signals or adverse event exacerbations at 3 years, she said. Dose modifications had no significant impact on efficacy, she added.

The findings of no impact of dose reduction on efficacy in both the NATALEE and monarchE studies provide important information on whether dosage can be reduced in patients, which will increase the odds that patients will tolerate extended therapy with good outcomes and stay on their prescribed therapies, Dr. Hamilton emphasized.

The CARABELA study, a phase 2 trial of neoadjuvant letrozole plus abemaciclib vs adriamycin and cyclophosphamide (AC), showed clinically similar response rates but did not meet its endpoint for residual cancer burden (RCB) scores. These data add to results from other studies and show that it is too soon to universally replace neoadjuvant chemotherapy as first-line treatment for highly proliferative ER+ breast cancer, Dr. Hamilton said in her presentation.
 

Advanced Breast Cancer

Take-home messages about advanced breast cancer include growing evidence for the potential benefits of antibody drug conjugates (ADCs), said Eva Ciruelos, MD, of University Hospital, Madrid, Spain. The TROPION-BREAST01 study, a phase 3 randomized trial, showed significant and clinically meaningful improvement in progression-free survival in patients with previously treated, inoperable, or metastatic HR+/HER2- breast cancer who received datopotamab deruxtecan (Dato-DXd) compared with those who received chemotherapy.

Data from an additional safety analysis were presented at the meeting; although Dato-DXd, a trophoblast cell-surface antigen 2 (TROP2)–directed antibody-drug conjugate, was well-tolerated, it is important to remain aware of toxicities, notably oral mucositis, which occurred in 55.6% of the patients in the study across all grades, and ocular surface toxicity, which occurred in 40% of patients across all grades, Dr. Ciruelos emphasized.

Key research in the area of advanced triple-negative breast cancer included data from the IMPASSION 132 study. This study is “specifically centered on early relapsers,” a population often excluded from other trials, Dr. Ciruelos said. In this study, patients with advanced triple-negative breast cancer were randomized to chemotherapy with or without atezolizumab, and the study showed no benefits with atezolizumab for overall survival, progression-free survival, or overall response rate, she said. “This is something to work with, because this is a very refractory population,” Dr. Ciruelos noted.

New immunotherapy combinations are needed to improve survival in advanced breast cancer patients, Dr. Ciruelos said. At the meeting, researchers presented interim data from a subset of patients in the MORPHEUS-pan breast cancer trial, a phase 1B/2 study involving multiple treatment combinations in locally advanced/metastatic breast cancer patients.

The interim analysis included 18-week data from triple-negative breast cancer patients and compared outcomes for patients randomized to atezolizumab with or without sacituzumab govitecan (SG).

The study was small, with only 31 patients in the combination arm and 11 controls, but the results were promising, with an overall response rate of 76.7% in the combination arm vs 66.7% in the control arm, Dr. Ciruelos said.

Supportive Care

Key supportive care takeaways included data on pregnancy in young breast cancer survivors and the safety of vaginal estrogen therapy in breast cancer patients with genitourinary symptoms, said Anne May, MD, of the University Medical Center Utrecht, Utrecht, Netherlands.

A study previously published in JAMA including nearly 5000 BRCA carriers who were diagnosed with invasive breast cancer at age 40 years or younger showed no association between pregnancy after breast cancer and adverse maternal or fetal outcomes, and pregnancy had no significant impact on overall survival. The authors presented new data on the safety of assisted reproductive techniques (ART) based on the 543 pregnancies in the original study, at the meeting. Of these, 436 conceived naturally, and 107 used ART. After a median of 9.1 years, ART had no effect on disease-free survival compared to natural conception (hazard ratio [HR], 0.64). Based on these findings, fertility preservation should be offered to all women who receive a breast cancer diagnosis and are interested in future fertility, Dr. May said.

Conceiving after breast cancer treatment and follow-up should not be contraindicated for young BRCA carriers, she added.No trial data are available for the effects of vaginal estrogen therapy (VET) on disease-free survival in breast cancer survivors with genitourinary symptoms caused by declining estrogen levels, Dr. May said. However, researchers in France and Switzerland conducted an emulation of a hypothetical target trial using data from the French National social security system for more than 130,000 individuals. Although VET therapy had no impact on disease-free survival in most breast cancer survivors overall, it did have a negative impact in a subset of patients with HR-positive and HR-negative tumors who were treated with aromatase inhibitors. The study was hypothetical, but important because the results suggest that clinicians can safely propose VTE to patients who report genitourinary symptoms after treatment for early-stage breast cancer with tamoxifen, but VTE should be avoided in patients treated with aromatase inhibitors, Dr. May said.

Dr. Delaloge disclosed research support to her institution from AstraZeneca, MSD, Bristol Myers Squibb, Sanofi, Taiho, Novartis, European Commission, INCa, Banque des Territoires, and Fondation Philanthropia. She also disclosed honoraria to her institution from AstraZeneca, Gilead, Novartis, Elsan, Besins, Sanofi, Exact Sciences, and Lilly, as well as travel support from Novartis.

Dr. Kok disclosed research funding from AstraZeneca, Bristol Myers Squibb, Daichi, and Roche, and advisory board membership/speaker’s fees from Alderaan Biotechnology, BIONTECH, Domain Therapeutics, AstraZeneca, Daichi, Bristol Myers Squibb, Gilead, Medscape, MSD, and Roche.

Dr. Hamilton disclosed a consulting advisory role (to her institution) for Accutar Biotechology, AstraZeneca, Daiichi Sankyo, Ellipses Pharma, Entos, Forsum Pharma, Gilead Sciences, Greenwich LifeSciences, Jazz Pharmaceuticals, Lilly, Medical Pharma Services, Mersana, Novartis, Olema Pharmaceuticals, Orum Therapeutics, Roche/Genentech, Stemline Therapeutics, ands others. She also disclosed contracted research/grant support to her institution only from Abbvie, Acerta Pharma, Accutar Biotechnology , ADC Therapeutics, AKESOBIO Australia , Amgen, Aravive, ArQule, Artios, Arvinas, AstraZeneca, AtlasMedx, BeiGene, Black Diamond and others.

Dr. Ciruelos disclosed serving as an external advisor for Roche, MSD, Gilead, AstraZeneca, Daichii Sankyo, Reveal Genomics, Pfizer, Novartis, and Lilly, as well as serving as a speaker for Roche, MSD, Gilead, AstraZeneca, Daichii Sankyo, Reveal Genomics, Pfizer, Novartis, Lilly, and Pierre Fabre. She also disclosed travel grants from Roche, Pfizer, and AstraZeneca, and research grants from Seagen and Roche.

Dr. May had no financial conflicts to disclose.

Five experts discussed research that they considered to be highlights of the European Society of Medical Oncology (ESMO) Breast Cancer annual congress during a “Key Takeaways” session at the meeting.

Among the topics the speakers addressed were breast cancer prevention, early breast cancer, advanced breast cancer, and supportive care.

In recent years, the way clinicians look at carcinogenesis in breast cancer has changed, and many new targets for potential early detection and prevention have emerged, said Suzette Delaloge, MD, of Gustave Roussy, Paris, France, in her presentation at the meeting.

Instant risk assessment at different time points could potentially intercept cancer among high-risk individuals, she said.

A study by Mikael Eriksson, PhD, and colleagues focused on external validation of the Profound AI tool to identify breast cancer risk in the general population. The researchers showed an area under the curve of 0.72 in their AI risk model, which has the potential to be clinically meaningful, although it must be prospectively validated, Dr. Delaloge said in her presentation.

She also reviewed two studies on the use of genes to further refine breast cancer risk among carriers. One of these, a prospective study presented in a session by Kelly-Anne Phillips, MD, of Peter MacCallum Cancer Center, Melbourne, Australia, used the CANRISK online risk assessment tool and validated increased breast cancer risk in BRCA1 and BRCA2 carriers, with AUCs of 0.79 and 0.78, respectively. The other study, which was by Maria Rezqallah Aron, MD, and colleagues examined polygenic scores as a way to refine breast cancer risk stratification among carriers of the ALM and PALB2 genes as well. These genes might be useful in identifying individuals who could benefit from early intervention, including surgery, Dr. Delaloge said.
 

Translational Research

“Preparing my talk, I felt like a kid in a candy store,” because of the amount of new translational research presented, including several studies of endocrine treatment–based approaches to therapy, said Marleen Kok, MD, of the Netherlands Cancer Institute, Amsterdam.

In her presentation, Dr. Kok highlighted findings from an analysis of patients in the monarchE study (a trial of high-risk patients) showing a consistent improvement in invasive disease-free survival for the subset of patients with germline BRCA1 and BRCA2 mutations who received abemaciclib plus endocrine therapy.

The value of tumor-infiltrating lymphocytes (TILs) on patients who are not receiving chemotherapy is important because of the focus on prognosis, and prospective trials are underway, she said.

A poster on the impact of chemotherapy and stromal tumor-infiltrating lymphocytes (sTILs) in stage I triple-negative breast cancer showed no association between chemotherapy and better outcomes regardless of sTILs in patients who did and did not receive chemotherapy, which has implications for potential treatment sparing in this population, Dr. Kok noted.

Artificial Intelligence (AI) was the subject of several posters at the meeting, and Dr. Kok identified a multisite European study of an automated HER2 scoring system as notable for its size and accuracy. In the study, the accuracy among pathologists was much higher with the assistance of AI, she said. Using AI for more complex analysis has shown success, she said.

Dr. Kok ended her talk with a poster that surveyed breast cancer patients about their understanding of their disease. The results showed that less than half (44%) of patients reported that their healthcare providers had given them enough information to learn about their breast cancer type, and less than one third could recall terminology about biomarkers; the study is important because it shows that clinicians need to do better in explaining these terms to patients, Dr. Kok said.
 

Early Breast Cancer

Right-sizing therapy, meaning identifying the right treatment for every patient, is a key element of new research in early breast cancer, said Erika Hamilton, MD, of the Sarah Cannon Research Institute, Nashville, Tenn.

She highlighted safety and treatment duration updates from the NATALEE study, which compared adjuvant ribociclib plus nonsteroidal aromatase inhibitor (NSAI) to NSAI alone for ER+/HER2- breast cancer. The current analysis presented at the meeting showed significant benefits with the addition of ribociclib and no evidence of new safety signals or adverse event exacerbations at 3 years, she said. Dose modifications had no significant impact on efficacy, she added.

The findings of no impact of dose reduction on efficacy in both the NATALEE and monarchE studies provide important information on whether dosage can be reduced in patients, which will increase the odds that patients will tolerate extended therapy with good outcomes and stay on their prescribed therapies, Dr. Hamilton emphasized.

The CARABELA study, a phase 2 trial of neoadjuvant letrozole plus abemaciclib vs adriamycin and cyclophosphamide (AC), showed clinically similar response rates but did not meet its endpoint for residual cancer burden (RCB) scores. These data add to results from other studies and show that it is too soon to universally replace neoadjuvant chemotherapy as first-line treatment for highly proliferative ER+ breast cancer, Dr. Hamilton said in her presentation.
 

Advanced Breast Cancer

Take-home messages about advanced breast cancer include growing evidence for the potential benefits of antibody drug conjugates (ADCs), said Eva Ciruelos, MD, of University Hospital, Madrid, Spain. The TROPION-BREAST01 study, a phase 3 randomized trial, showed significant and clinically meaningful improvement in progression-free survival in patients with previously treated, inoperable, or metastatic HR+/HER2- breast cancer who received datopotamab deruxtecan (Dato-DXd) compared with those who received chemotherapy.

Data from an additional safety analysis were presented at the meeting; although Dato-DXd, a trophoblast cell-surface antigen 2 (TROP2)–directed antibody-drug conjugate, was well-tolerated, it is important to remain aware of toxicities, notably oral mucositis, which occurred in 55.6% of the patients in the study across all grades, and ocular surface toxicity, which occurred in 40% of patients across all grades, Dr. Ciruelos emphasized.

Key research in the area of advanced triple-negative breast cancer included data from the IMPASSION 132 study. This study is “specifically centered on early relapsers,” a population often excluded from other trials, Dr. Ciruelos said. In this study, patients with advanced triple-negative breast cancer were randomized to chemotherapy with or without atezolizumab, and the study showed no benefits with atezolizumab for overall survival, progression-free survival, or overall response rate, she said. “This is something to work with, because this is a very refractory population,” Dr. Ciruelos noted.

New immunotherapy combinations are needed to improve survival in advanced breast cancer patients, Dr. Ciruelos said. At the meeting, researchers presented interim data from a subset of patients in the MORPHEUS-pan breast cancer trial, a phase 1B/2 study involving multiple treatment combinations in locally advanced/metastatic breast cancer patients.

The interim analysis included 18-week data from triple-negative breast cancer patients and compared outcomes for patients randomized to atezolizumab with or without sacituzumab govitecan (SG).

The study was small, with only 31 patients in the combination arm and 11 controls, but the results were promising, with an overall response rate of 76.7% in the combination arm vs 66.7% in the control arm, Dr. Ciruelos said.

Supportive Care

Key supportive care takeaways included data on pregnancy in young breast cancer survivors and the safety of vaginal estrogen therapy in breast cancer patients with genitourinary symptoms, said Anne May, MD, of the University Medical Center Utrecht, Utrecht, Netherlands.

A study previously published in JAMA including nearly 5000 BRCA carriers who were diagnosed with invasive breast cancer at age 40 years or younger showed no association between pregnancy after breast cancer and adverse maternal or fetal outcomes, and pregnancy had no significant impact on overall survival. The authors presented new data on the safety of assisted reproductive techniques (ART) based on the 543 pregnancies in the original study, at the meeting. Of these, 436 conceived naturally, and 107 used ART. After a median of 9.1 years, ART had no effect on disease-free survival compared to natural conception (hazard ratio [HR], 0.64). Based on these findings, fertility preservation should be offered to all women who receive a breast cancer diagnosis and are interested in future fertility, Dr. May said.

Conceiving after breast cancer treatment and follow-up should not be contraindicated for young BRCA carriers, she added.No trial data are available for the effects of vaginal estrogen therapy (VET) on disease-free survival in breast cancer survivors with genitourinary symptoms caused by declining estrogen levels, Dr. May said. However, researchers in France and Switzerland conducted an emulation of a hypothetical target trial using data from the French National social security system for more than 130,000 individuals. Although VET therapy had no impact on disease-free survival in most breast cancer survivors overall, it did have a negative impact in a subset of patients with HR-positive and HR-negative tumors who were treated with aromatase inhibitors. The study was hypothetical, but important because the results suggest that clinicians can safely propose VTE to patients who report genitourinary symptoms after treatment for early-stage breast cancer with tamoxifen, but VTE should be avoided in patients treated with aromatase inhibitors, Dr. May said.

Dr. Delaloge disclosed research support to her institution from AstraZeneca, MSD, Bristol Myers Squibb, Sanofi, Taiho, Novartis, European Commission, INCa, Banque des Territoires, and Fondation Philanthropia. She also disclosed honoraria to her institution from AstraZeneca, Gilead, Novartis, Elsan, Besins, Sanofi, Exact Sciences, and Lilly, as well as travel support from Novartis.

Dr. Kok disclosed research funding from AstraZeneca, Bristol Myers Squibb, Daichi, and Roche, and advisory board membership/speaker’s fees from Alderaan Biotechnology, BIONTECH, Domain Therapeutics, AstraZeneca, Daichi, Bristol Myers Squibb, Gilead, Medscape, MSD, and Roche.

Dr. Hamilton disclosed a consulting advisory role (to her institution) for Accutar Biotechology, AstraZeneca, Daiichi Sankyo, Ellipses Pharma, Entos, Forsum Pharma, Gilead Sciences, Greenwich LifeSciences, Jazz Pharmaceuticals, Lilly, Medical Pharma Services, Mersana, Novartis, Olema Pharmaceuticals, Orum Therapeutics, Roche/Genentech, Stemline Therapeutics, ands others. She also disclosed contracted research/grant support to her institution only from Abbvie, Acerta Pharma, Accutar Biotechnology , ADC Therapeutics, AKESOBIO Australia , Amgen, Aravive, ArQule, Artios, Arvinas, AstraZeneca, AtlasMedx, BeiGene, Black Diamond and others.

Dr. Ciruelos disclosed serving as an external advisor for Roche, MSD, Gilead, AstraZeneca, Daichii Sankyo, Reveal Genomics, Pfizer, Novartis, and Lilly, as well as serving as a speaker for Roche, MSD, Gilead, AstraZeneca, Daichii Sankyo, Reveal Genomics, Pfizer, Novartis, Lilly, and Pierre Fabre. She also disclosed travel grants from Roche, Pfizer, and AstraZeneca, and research grants from Seagen and Roche.

Dr. May had no financial conflicts to disclose.

For breast cancer survivors harboring BRCA1/2 gene mutations, the prospect of future pregnancy often raises concerns because of limited data on the safety of assisted reproductive techniques (ART) in this population. However, results from a large international study presented at the European Society for Medical Oncology (ESMO) Breast Cancer annual congress provide reassuring evidence that ART, such as in vitro fertilization, can be safely used by BRCA1/2 mutation carriers previously treated for breast cancer.

“Our primary aim was to evaluate the safety profile of ART in this high-risk population by comparing maternal and fetal outcomes between those who conceived spontaneously versus those using ART,” explained Matteo Lambertini, MD, PhD, during his talk at the conference. “We found no statistically significant differences in pregnancy complications or fetal abnormalities.” Dr. Lambertini is an associate professor and medical oncologist at the University of Genova and IRCCS Policlinico San Martino Hospital, Genova, Italy.
 

Unmet Fertility Needs for Women With Breast Cancer

With the rising rates of early-onset breast cancer and improved survival outcomes with new therapies, the number of long-term breast cancer survivors is increasing. Fertility preservation and future reproductive choices are important considerations for young patients with breast cancer, especially for high-risk patients carrying pathogenic BRCA1/2 mutations. During his talk, Dr. Lambertini explained that defects in DNA damage repair due to BRCA1/2 mutations, in addition to chemotherapy after breast cancer diagnosis, can lead to premature menopause.

According to Dr. Lambertini, physicians face challenges in counseling these patients regarding the potential risks and benefits of pursuing pregnancy after cancer treatment because of the limited evidence available on the safety of ART in BRCA1/2 mutation carriers.

“Clinicians have to counsel BRCA carriers based on very limited data about the safety of pursuing pregnancy with ART after a breast cancer diagnosis,” he said during his presentation.
 

Study Design and Patient Population

The retrospective cohort study pooled data from 78 centers worldwide to explore ART outcomes in BRCA1/2 mutation carriers. The analysis included 4732 women diagnosed with stage I-III breast cancer at age 40 years or younger, all harboring a pathogenic BRCA1 or BRCA2 variant.

Among these high-risk patients, 543 became pregnant after completing cancer treatment; of these, 436 conceived naturally and 107 used ART. In the ART group, 45.5% underwent oocyte or embryo cryopreservation at breast cancer diagnosis, 33.3% underwent ovarian stimulation for in vitro fertilization after cancer treatment, and 21.2% underwent embryo transfer following oocyte donation.

Dr. Janice Tsang, MD, a clinical oncology specialist and assistant professor at the University of Hong Kong who was not involved in this study, highlighted that this is the largest study focusing on ART safety in young patients with BRCA1/2 mutations. “With over 500 BRCA1/2 mutation carriers studied across nearly 80 sites, the cohort analysis had sufficient statistical power and global representation to detect potential safety signals with ART utilization, unlike prior smaller studies,” she said. Dr. Tsang, a clinical oncology specialist and assistant professor at the University of Hong Kong who was not involved in this study, served as a discussant, providing her expert opinion on the findings presented by Dr. Lambertini.
 

No Increased Risks for Pregnancy and Fetal Outcomes

Although women using ART had slightly higher miscarriage rates (11.3% versus 8.8%) and lower rates of induced abortion (0.9% versus 8.3%) than women with spontaneous conceptions, the analysis revealed no statistically significant differences in the frequency of pregnancy complications, delivery complications, or congenital abnormalities between those who received ART and those who conceived naturally.

Dr. Lambertini explained that variations in baseline characteristics, such as age, may have contributed to differences in miscarriage rates.

“Patients in the ART group tended to be older at the time of conception, with a median age of 37.1 years, compared with 34.3 years in the spontaneous pregnancy group,” he said, during his presentation. Women in the ART group also more frequently had hormone receptor–positive breast cancer (43.4% versus 30.8%) and longer median time from diagnosis to conception (4.2 versus 3.3 years).
 

No Adverse Effects on Breast Cancer Prognosis

At a median follow-up of 5.2 years from conception, there was no detrimental effect of ART on disease-free survival for carriers of pathogenic BRCA1/2 variants who were treated for breast cancer. The ART group showed 13 (13.1%) recurrence events, compared with 118 (27.1%) recurrences in the spontaneous pregnancy group (adjusted hazard ratio, 0.72; 95% CI, 0.38-1.33; P = .147).

“The risk of cancer recurrence was comparable between those using and not using ART to become pregnant after their breast cancer diagnosis and treatment, and the small number of recurrence events in the ART group mostly involved locoregional recurrences,” Dr. Lambertini noted during his talk.

Moreover, breast cancer–specific survival and overall survival appeared to be similar between the two groups, although the small number of deaths precluded the conduction of formal analysis.

“These survival data suggest that utilizing ART does not appear to negatively impact the prognosis or course of the underlying breast cancer,” Dr. Lambertini said during the discussion.
 

Clinical Implications and Future Work

According to Dr. Lambertini, these results are incredibly valuable for clinicians counseling young breast cancer survivors with pathogenic BRCA1/2 mutations who wish to have biological children.

“Given the interest of patients in having their own family and for some of them in avoiding the transmission of the BRCA1/2 pathogenic variants, our results are critical in improving the oncofertility counseling of young women with breast cancer,” said Dr. Lambertini during his presentation. “We can reassure patients that pursuing ART does not appear to worsen their cancer prognosis or compromise pregnancy outcomes compared to spontaneous conceptions.”

During her discussion session, Dr. Tsang echoed the clinical implications of these findings, emphasizing that, by incorporating this evidence into clinical practice, healthcare providers can better support patients in making informed choices regarding fertility preservation and family planning after cancer treatment.

“Though this study is [retrospective] with a relatively small number, these real-world findings make a major contribution to our limited evidence base on ART safety for cancer survivors carrying BRCA1/2 mutations,” she said.

She cautioned, however, that there remain several unanswered questions and uncertainties. “We need prospective data with a larger sample size to confirm the safety of ART in this population, as well as studies to assess whether different types of ART have different safety profiles.”

Dr. Lambertini concluded his talk by saying, “While waiting for prospective studies to confirm our results, fertility preservation at diagnosis of early breast cancer should be offered to all women interested in future fertility, including BRCA carriers.”

Dr. Lambertini reported financial relationships with Roche, AstraZeneca, Lilly, Novartis, Pfizer, Exact Sciences, MSD, Seagen, Gilead, Pierre Fabre, and Menarini (consulting or advisory roles); Takeda, Roche, Lilly, Novartis, Pfizer, AstraZeneca, Sandoz, Ipsen, Libbs, Knight, Dalichi Sankyo, Gilead, Menarini (honoraria); Gilead, Daiichi Sankyo, and Roche (travel support); and Gilead (research funding to the institution). Dr. Tsang reported financial relationships with AstraZeneca, Amgen, Daichi Sankyo, Eisai, Gilead, Lilly, Lucence, Novartis, Pfizer, and Veracyte (honoraria); De Novo (consulting or advisory roles); and Pfizer (grant panel reviewer).

For breast cancer survivors harboring BRCA1/2 gene mutations, the prospect of future pregnancy often raises concerns because of limited data on the safety of assisted reproductive techniques (ART) in this population. However, results from a large international study presented at the European Society for Medical Oncology (ESMO) Breast Cancer annual congress provide reassuring evidence that ART, such as in vitro fertilization, can be safely used by BRCA1/2 mutation carriers previously treated for breast cancer.

“Our primary aim was to evaluate the safety profile of ART in this high-risk population by comparing maternal and fetal outcomes between those who conceived spontaneously versus those using ART,” explained Matteo Lambertini, MD, PhD, during his talk at the conference. “We found no statistically significant differences in pregnancy complications or fetal abnormalities.” Dr. Lambertini is an associate professor and medical oncologist at the University of Genova and IRCCS Policlinico San Martino Hospital, Genova, Italy.
 

Unmet Fertility Needs for Women With Breast Cancer

With the rising rates of early-onset breast cancer and improved survival outcomes with new therapies, the number of long-term breast cancer survivors is increasing. Fertility preservation and future reproductive choices are important considerations for young patients with breast cancer, especially for high-risk patients carrying pathogenic BRCA1/2 mutations. During his talk, Dr. Lambertini explained that defects in DNA damage repair due to BRCA1/2 mutations, in addition to chemotherapy after breast cancer diagnosis, can lead to premature menopause.

According to Dr. Lambertini, physicians face challenges in counseling these patients regarding the potential risks and benefits of pursuing pregnancy after cancer treatment because of the limited evidence available on the safety of ART in BRCA1/2 mutation carriers.

“Clinicians have to counsel BRCA carriers based on very limited data about the safety of pursuing pregnancy with ART after a breast cancer diagnosis,” he said during his presentation.
 

Study Design and Patient Population

The retrospective cohort study pooled data from 78 centers worldwide to explore ART outcomes in BRCA1/2 mutation carriers. The analysis included 4732 women diagnosed with stage I-III breast cancer at age 40 years or younger, all harboring a pathogenic BRCA1 or BRCA2 variant.

Among these high-risk patients, 543 became pregnant after completing cancer treatment; of these, 436 conceived naturally and 107 used ART. In the ART group, 45.5% underwent oocyte or embryo cryopreservation at breast cancer diagnosis, 33.3% underwent ovarian stimulation for in vitro fertilization after cancer treatment, and 21.2% underwent embryo transfer following oocyte donation.

Dr. Janice Tsang, MD, a clinical oncology specialist and assistant professor at the University of Hong Kong who was not involved in this study, highlighted that this is the largest study focusing on ART safety in young patients with BRCA1/2 mutations. “With over 500 BRCA1/2 mutation carriers studied across nearly 80 sites, the cohort analysis had sufficient statistical power and global representation to detect potential safety signals with ART utilization, unlike prior smaller studies,” she said. Dr. Tsang, a clinical oncology specialist and assistant professor at the University of Hong Kong who was not involved in this study, served as a discussant, providing her expert opinion on the findings presented by Dr. Lambertini.
 

No Increased Risks for Pregnancy and Fetal Outcomes

Although women using ART had slightly higher miscarriage rates (11.3% versus 8.8%) and lower rates of induced abortion (0.9% versus 8.3%) than women with spontaneous conceptions, the analysis revealed no statistically significant differences in the frequency of pregnancy complications, delivery complications, or congenital abnormalities between those who received ART and those who conceived naturally.

Dr. Lambertini explained that variations in baseline characteristics, such as age, may have contributed to differences in miscarriage rates.

“Patients in the ART group tended to be older at the time of conception, with a median age of 37.1 years, compared with 34.3 years in the spontaneous pregnancy group,” he said, during his presentation. Women in the ART group also more frequently had hormone receptor–positive breast cancer (43.4% versus 30.8%) and longer median time from diagnosis to conception (4.2 versus 3.3 years).
 

No Adverse Effects on Breast Cancer Prognosis

At a median follow-up of 5.2 years from conception, there was no detrimental effect of ART on disease-free survival for carriers of pathogenic BRCA1/2 variants who were treated for breast cancer. The ART group showed 13 (13.1%) recurrence events, compared with 118 (27.1%) recurrences in the spontaneous pregnancy group (adjusted hazard ratio, 0.72; 95% CI, 0.38-1.33; P = .147).

“The risk of cancer recurrence was comparable between those using and not using ART to become pregnant after their breast cancer diagnosis and treatment, and the small number of recurrence events in the ART group mostly involved locoregional recurrences,” Dr. Lambertini noted during his talk.

Moreover, breast cancer–specific survival and overall survival appeared to be similar between the two groups, although the small number of deaths precluded the conduction of formal analysis.

“These survival data suggest that utilizing ART does not appear to negatively impact the prognosis or course of the underlying breast cancer,” Dr. Lambertini said during the discussion.
 

Clinical Implications and Future Work

According to Dr. Lambertini, these results are incredibly valuable for clinicians counseling young breast cancer survivors with pathogenic BRCA1/2 mutations who wish to have biological children.

“Given the interest of patients in having their own family and for some of them in avoiding the transmission of the BRCA1/2 pathogenic variants, our results are critical in improving the oncofertility counseling of young women with breast cancer,” said Dr. Lambertini during his presentation. “We can reassure patients that pursuing ART does not appear to worsen their cancer prognosis or compromise pregnancy outcomes compared to spontaneous conceptions.”

During her discussion session, Dr. Tsang echoed the clinical implications of these findings, emphasizing that, by incorporating this evidence into clinical practice, healthcare providers can better support patients in making informed choices regarding fertility preservation and family planning after cancer treatment.

“Though this study is [retrospective] with a relatively small number, these real-world findings make a major contribution to our limited evidence base on ART safety for cancer survivors carrying BRCA1/2 mutations,” she said.

She cautioned, however, that there remain several unanswered questions and uncertainties. “We need prospective data with a larger sample size to confirm the safety of ART in this population, as well as studies to assess whether different types of ART have different safety profiles.”

Dr. Lambertini concluded his talk by saying, “While waiting for prospective studies to confirm our results, fertility preservation at diagnosis of early breast cancer should be offered to all women interested in future fertility, including BRCA carriers.”

Dr. Lambertini reported financial relationships with Roche, AstraZeneca, Lilly, Novartis, Pfizer, Exact Sciences, MSD, Seagen, Gilead, Pierre Fabre, and Menarini (consulting or advisory roles); Takeda, Roche, Lilly, Novartis, Pfizer, AstraZeneca, Sandoz, Ipsen, Libbs, Knight, Dalichi Sankyo, Gilead, Menarini (honoraria); Gilead, Daiichi Sankyo, and Roche (travel support); and Gilead (research funding to the institution). Dr. Tsang reported financial relationships with AstraZeneca, Amgen, Daichi Sankyo, Eisai, Gilead, Lilly, Lucence, Novartis, Pfizer, and Veracyte (honoraria); De Novo (consulting or advisory roles); and Pfizer (grant panel reviewer).

For breast cancer survivors harboring BRCA1/2 gene mutations, the prospect of future pregnancy often raises concerns because of limited data on the safety of assisted reproductive techniques (ART) in this population. However, results from a large international study presented at the European Society for Medical Oncology (ESMO) Breast Cancer annual congress provide reassuring evidence that ART, such as in vitro fertilization, can be safely used by BRCA1/2 mutation carriers previously treated for breast cancer.

“Our primary aim was to evaluate the safety profile of ART in this high-risk population by comparing maternal and fetal outcomes between those who conceived spontaneously versus those using ART,” explained Matteo Lambertini, MD, PhD, during his talk at the conference. “We found no statistically significant differences in pregnancy complications or fetal abnormalities.” Dr. Lambertini is an associate professor and medical oncologist at the University of Genova and IRCCS Policlinico San Martino Hospital, Genova, Italy.
 

Unmet Fertility Needs for Women With Breast Cancer

With the rising rates of early-onset breast cancer and improved survival outcomes with new therapies, the number of long-term breast cancer survivors is increasing. Fertility preservation and future reproductive choices are important considerations for young patients with breast cancer, especially for high-risk patients carrying pathogenic BRCA1/2 mutations. During his talk, Dr. Lambertini explained that defects in DNA damage repair due to BRCA1/2 mutations, in addition to chemotherapy after breast cancer diagnosis, can lead to premature menopause.

According to Dr. Lambertini, physicians face challenges in counseling these patients regarding the potential risks and benefits of pursuing pregnancy after cancer treatment because of the limited evidence available on the safety of ART in BRCA1/2 mutation carriers.

“Clinicians have to counsel BRCA carriers based on very limited data about the safety of pursuing pregnancy with ART after a breast cancer diagnosis,” he said during his presentation.
 

Study Design and Patient Population

The retrospective cohort study pooled data from 78 centers worldwide to explore ART outcomes in BRCA1/2 mutation carriers. The analysis included 4732 women diagnosed with stage I-III breast cancer at age 40 years or younger, all harboring a pathogenic BRCA1 or BRCA2 variant.

Among these high-risk patients, 543 became pregnant after completing cancer treatment; of these, 436 conceived naturally and 107 used ART. In the ART group, 45.5% underwent oocyte or embryo cryopreservation at breast cancer diagnosis, 33.3% underwent ovarian stimulation for in vitro fertilization after cancer treatment, and 21.2% underwent embryo transfer following oocyte donation.

Dr. Janice Tsang, MD, a clinical oncology specialist and assistant professor at the University of Hong Kong who was not involved in this study, highlighted that this is the largest study focusing on ART safety in young patients with BRCA1/2 mutations. “With over 500 BRCA1/2 mutation carriers studied across nearly 80 sites, the cohort analysis had sufficient statistical power and global representation to detect potential safety signals with ART utilization, unlike prior smaller studies,” she said. Dr. Tsang, a clinical oncology specialist and assistant professor at the University of Hong Kong who was not involved in this study, served as a discussant, providing her expert opinion on the findings presented by Dr. Lambertini.
 

No Increased Risks for Pregnancy and Fetal Outcomes

Although women using ART had slightly higher miscarriage rates (11.3% versus 8.8%) and lower rates of induced abortion (0.9% versus 8.3%) than women with spontaneous conceptions, the analysis revealed no statistically significant differences in the frequency of pregnancy complications, delivery complications, or congenital abnormalities between those who received ART and those who conceived naturally.

Dr. Lambertini explained that variations in baseline characteristics, such as age, may have contributed to differences in miscarriage rates.

“Patients in the ART group tended to be older at the time of conception, with a median age of 37.1 years, compared with 34.3 years in the spontaneous pregnancy group,” he said, during his presentation. Women in the ART group also more frequently had hormone receptor–positive breast cancer (43.4% versus 30.8%) and longer median time from diagnosis to conception (4.2 versus 3.3 years).
 

No Adverse Effects on Breast Cancer Prognosis

At a median follow-up of 5.2 years from conception, there was no detrimental effect of ART on disease-free survival for carriers of pathogenic BRCA1/2 variants who were treated for breast cancer. The ART group showed 13 (13.1%) recurrence events, compared with 118 (27.1%) recurrences in the spontaneous pregnancy group (adjusted hazard ratio, 0.72; 95% CI, 0.38-1.33; P = .147).

“The risk of cancer recurrence was comparable between those using and not using ART to become pregnant after their breast cancer diagnosis and treatment, and the small number of recurrence events in the ART group mostly involved locoregional recurrences,” Dr. Lambertini noted during his talk.

Moreover, breast cancer–specific survival and overall survival appeared to be similar between the two groups, although the small number of deaths precluded the conduction of formal analysis.

“These survival data suggest that utilizing ART does not appear to negatively impact the prognosis or course of the underlying breast cancer,” Dr. Lambertini said during the discussion.
 

Clinical Implications and Future Work

According to Dr. Lambertini, these results are incredibly valuable for clinicians counseling young breast cancer survivors with pathogenic BRCA1/2 mutations who wish to have biological children.

“Given the interest of patients in having their own family and for some of them in avoiding the transmission of the BRCA1/2 pathogenic variants, our results are critical in improving the oncofertility counseling of young women with breast cancer,” said Dr. Lambertini during his presentation. “We can reassure patients that pursuing ART does not appear to worsen their cancer prognosis or compromise pregnancy outcomes compared to spontaneous conceptions.”

During her discussion session, Dr. Tsang echoed the clinical implications of these findings, emphasizing that, by incorporating this evidence into clinical practice, healthcare providers can better support patients in making informed choices regarding fertility preservation and family planning after cancer treatment.

“Though this study is [retrospective] with a relatively small number, these real-world findings make a major contribution to our limited evidence base on ART safety for cancer survivors carrying BRCA1/2 mutations,” she said.

She cautioned, however, that there remain several unanswered questions and uncertainties. “We need prospective data with a larger sample size to confirm the safety of ART in this population, as well as studies to assess whether different types of ART have different safety profiles.”

Dr. Lambertini concluded his talk by saying, “While waiting for prospective studies to confirm our results, fertility preservation at diagnosis of early breast cancer should be offered to all women interested in future fertility, including BRCA carriers.”

Dr. Lambertini reported financial relationships with Roche, AstraZeneca, Lilly, Novartis, Pfizer, Exact Sciences, MSD, Seagen, Gilead, Pierre Fabre, and Menarini (consulting or advisory roles); Takeda, Roche, Lilly, Novartis, Pfizer, AstraZeneca, Sandoz, Ipsen, Libbs, Knight, Dalichi Sankyo, Gilead, Menarini (honoraria); Gilead, Daiichi Sankyo, and Roche (travel support); and Gilead (research funding to the institution). Dr. Tsang reported financial relationships with AstraZeneca, Amgen, Daichi Sankyo, Eisai, Gilead, Lilly, Lucence, Novartis, Pfizer, and Veracyte (honoraria); De Novo (consulting or advisory roles); and Pfizer (grant panel reviewer).