Hormone therapy less effective in menopausal women with obesity

Women with obesity are undertreated

Dr. Pershad emphasized the need to improve care and counseling for diverse patients seeking treatment for menopausal symptoms.

“More research is needed to examine how women with medical comorbidities are uniquely impacted by menopause and respond to therapies,” Dr. Pershad said in an interview. “This can be achieved by actively including more diverse patient populations in women’s health studies, burdened by the social determinants of health and medical comorbidities such as obesity.”

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Dr. Stephanie S. Faubion

Stephanie S. Faubion, MD, MBA, director for Mayo Clinic’s Center for Women’s Health, Rochester, Minn., and medical director for The Menopause Society, was not surprised by the findings, particularly given that women with obesity tend to have more hot flashes and night sweats as a result of their extra weight. However, dosage data was not adjusted for BMI in the study and data on hormone levels was unavailable, she said, so it’s difficult to determine from the data whether HT was less effective for women with obesity or whether they were underdosed.

“I think women with obesity are undertreated,” Dr. Faubion said in an interview. “My guess is people are afraid. Women with obesity also may have other comorbidities,” such as hypertension and diabetes, she said, and “the greater the number of cardiovascular risk factors, the higher risk hormone therapy is.” Providers may therefore be leery of prescribing HT or prescribing it at an appropriately high enough dose to treat menopausal symptoms.

Common practice is to start patients at the lowest dose and titrate up according to symptoms, but “if people are afraid of it, they’re going to start the lowest dose” and may not increase it, Dr. Faubion said. She noted that other nonhormonal options are available, though providers should be conscientious about selecting ones whose adverse events do not include weight gain.

Although the study focused on an understudied population within hormone therapy research, the study was limited by its small size, low overall use of hormone therapy, recall bias, and the researchers’ inability to control for other medications the participants may have been taking.

Dr. Pershad said she is continuing research to try to identify the mechanisms underlying the reduced efficacy in women with obesity.

The research did not use any external funding. Dr. Pershad had no industry disclosures, but her colleagues reported honoraria from or speaking for TherapeuticsMD, Astella Pharma, Scynexis, Pharmavite, and Pfizer. Dr. Faubion had no disclosures.