Hormone Therapy for Menopause Remains at Historic Lows

CHICAGO — Less than 4% of American women aged 50-59 years use hormone therapy (HT) to treat menopausal symptoms today, approximately 10 times lower than the peak use of HT before the publication of the 2002 Women’s Health Initiative (WHI) study that misguidedly cast doubt on the safety of HT. Though subsequent research has addressed the flaws of the WHI study and supports the use of HT in most menopausal women younger than 60 years, use of this therapy has never recovered, according to research presented at the North American Menopause Society (NAMS) 2024 Annual Meeting in Chicago on September 12.

“Despite evidence supporting the efficacy and safety of HT, usage rates of US Food and Drug Administration–approved HT remain low,” Stephanie Faubion, MD, MBA, director of the Mayo Clinic Women’s Health in Jacksonville, Florida, and medical director of The Menopause Society, told attendees. “Improved education of clinicians and patients is critically needed.”

Today, “there is more clarity on the risk/benefit ratio of HT use with the benefits typically outweighing the risks in women who initiate therapy under the age of 60 years and within 10 years of menopause onset.”

Using medical and pharmacy claims data from OptumLabs, Faubion and her colleagues examined utilization rates from 2007 to 2023 of transdermal vs oral estrogen and of conjugated estrogen vs estradiol in women aged 40 years or older. The data included more than 200 million people throughout the United States covered by commercial insurance or Medicare Advantage. The researchers defined annual rate of HT use as the proportion of women who had at least 180 days of a filled prescription for a systemic HT preparation with estrogen.

The study population increased from an estimated 2 million women in 2007 to 4.5 million women in 2023, and the average age of enrollees increased from 53 in 2007 to 66 in 2023. Starting at 4.6% in 2007, HT use steadily declined to a low of 1.8% in 2023 for the whole cohort of women aged 40 years or older.

Though rates remained highest in women aged 50-64 years, it still declined within each age group: From 6% in 2007 to 3.6% in 2023 among women aged 50-54 years, from 7.3% to 3.8% among women aged 55-59 years, and from 7.5% to 2.9% among women aged 60-64 years. It also declined in younger women, from 3.2% in 2007 to 1.5% in 2023 in those aged 45-50 years. Estradiol was the most common formulation used, and oral administration was the most common route.

The researchers also saw a gradual decline during the study period in the use of high-dose oral HT and an increase in the use of low-dose oral HT, whereas standard dosages remained fairly consistent as the most common dose prescribed. Similarly, the use of high transdermal doses declined, whereas low transdermal doses increased and surpassed the use of standard doses. Conjugated estrogen use plummeted during the study period across all age groups, from 2%-5% in most age groups to < 1% in all age groups by 2023.

One limitation of the study was that it could not examine rates of compounded HT use because those would not be reflected in insurance claims, pointed out JoAnn Pinkerton, MD, a professor of obgyn at the University of Virginia in Charlottesville, Virginia, who was not involved in the study. Pinkerton found it surprising that the numbers were so low, despite the fact that research estimates suggest less than 15% of menopausal women are receiving adequate treatment, she told Medscape Medical News. “You can see there’s a large unmet need to get treatment,” she said. “All major medical societies say the same thing: For healthy, symptomatic menopausal women, you can use hormone therapy safely and effectively.” 

The lack of education among providers is likely the biggest reason for the decline, Pinkerton says. “I think it’s because there’s a whole group of providers that did not receive any training, and that’s obgyns, internal medicine, family practice, endocrinologists,” she said. “Now that people are starting to feel more confident that we can use it safely, we’re trying to get that training out to people about vasomotor symptoms, about hormone therapy, and now about new nonhormone therapies.”

Pinkerton noted that The Menopause Society has begun a new teaching program, Menopause Step-by-Step, aimed at providing short articles on the basics of menopause, HT, non-HT, and vaginal issues.

A separate poster presented at the conference provides insight into another potential factor contributing to low HT rates. A survey of 1050 American and Canadian women found that 90% discussed their symptoms with their healthcare providers, yet only 25% said their doctor identified the symptoms as likely due to perimenopause or menopause on their first visit — and only 10% of respondents said their doctor was the one to bring up perimenopause/menopause.

The respondents comprised a convenience sample of those who saw the survey on social media, in an email, or on the website of Morphus, a Toronto-based company aimed at providing support, information, and products related to menopause. Though the survey is ongoing, the analyzed responses are from March to May 2024.

Though 40% of the women said their provider attributed their symptoms to perimenopause or menopause on the second or third visit, 18% saw a provider 4-5 times, and 17% saw a provider more than five times before the provider considered menopause as a cause. About a third of the women (35%) brought it up to their doctor themselves and found their provider receptive, but 40% said the response was dismissive when they brought it up, and 15% said the topic was never broached at all.

Andrea Donsky, RHN, founder of Morphus who conducted the study, found these numbers surprising because she would have hoped that more doctors would have brought up perimenopause/menopause sooner. “We still have a lot of work to do to help educate women and healthcare providers,” Donsky told Medscape Medical News. “A lot of women spend years not knowing they’re in this phase of life, so they visit their doctors/HCPs [healthcare providers] many times because the connection isn’t made on the first visit.”

Danielle Meitiv, MS, a study co-author and health coach based in Silver Spring, Maryland, added, “Everyone wonders why we end up with Dr Google; that’s the only doctor who’s talking to us about menopause.”

Pinkerton was less surprised by these survey findings. “As a menopause specialist, my most common new patient is a perimenopausal woman who feels like she hasn’t been listened to,” whether it’s her primary care doctor, her obgyn, or another clinician. “If the provider doesn’t ask or if the women doesn’t tell, then you don’t have the conversation,” Pinkerton said. “So many women in perimenopause are busy with work, families, partnerships, aging parents — all of the issues that they’re dealing with — that when they start to have sleep issues or mood issues or easy crying, they relate it to their life stressors, instead of recognizing that it’s fluctuating hormones.”

When Donsky examined the 1223 responses they had received through August 2024, the most common treatments advised for symptoms were antidepressants and HT, both recommended by 38% of providers. Other common recommendations were to “lose weight,” “eat less and exercise more,” supplements, or birth control pills.

Faubion had no disclosures, and her study used no external funding. Pinkerton has run a trial funded by Bayer and is a consultant for Bayer and Pfizer. Ms Donsky is the owner of Morphus. Ms Meitiv had no disclosures. The poster on women’s experiences with providers was funded by Morphus Inc.

Tara Haelle is a Dallas-based medical journalist.