HT for menopausal depression: Which patients may benefit?
Dwyer JB, Aftab A, Radhakrishnan R, et al; APA Council of Research Task Force on Novel Biomarkers and Treatments. Hormonal treatments for major depressive disorder: state of the art. Am J Psychiatry. 2020;177:686- 705. doi:10.1176/appi.ajp.2020.19080848.
The cumulative lifetime prevalence of major depression in US women is 21%.9 An increased risk of mood symptoms and major depressive disorder occurs with the cessation of ovarian hormone production during menopause. In a review of both physiology and clinical studies, an American Psychiatric Association task force found support for several hormone-related strategies for treating depression and highlighted the rapidly advancing, but mixed, findings in this field.10
Clinical trials that examined mood in peri- and postmenopausal women treated with HT have produced mixed results for a variety of reasons, including differences in psychiatric symptomatology across studies and differences in treatment timing in relation to menopause onset.
HT effectiveness for depression depends on menopausal status
Five studies included in a meta-analysis by Rubinow and colleagues examined the use of ET and EPT as antidepressant monotherapy in peri- or postmenopausal women with major depression.11 Of the 3 higher-quality studies, 2 conducted in perimenopausal women demonstrated the antidepressant efficacy of transdermal estrogen patches compared with placebo. The third study included a mixed population of both peri- and postmenopausal women, and it found that increased estradiol levels (spontaneously occurring or due to ET) were associated with improvement in depression in perimenopausal women but not in postmenopausal women.11
ET also has been investigated as a potential adjunctive treatment to selective serotonin reuptake inhibitors (SSRIs). In a retrospective analysis of a multicenter randomized controlled trial of fluoxetine in patients with depression, women who received ET and fluoxetine demonstrated a greater improvement than those who received fluoxetine monotherapy.12 One small study that prospectively assessed ET in combination with an antidepressant in postmenopausal women demonstrated no benefit of ET in treating depression.13 Another small trial found that while combining transdermal ET with an SSRI accelerated symptom improvement, by the end of the 10-week study, treatment efficacy in the HT plus SSRI group was no greater than that observed in the SSRI-only group.14
Nineteen studies included in the metaanalysis by Rubinow and colleagues, which examined mood after ET or EPT treatment in nondepressed women, found little evidence of benefit, particularly in women without other physical symptoms of menopause.11
The Kronos Early Estrogen Prevention Study (KEEPS) followed 661 women who received either oral estrogen plus progesterone, transdermal estrogen plus progesterone, or placebo over 4 years.15 Women with clinical depression were excluded from the study; however, women with mild to moderate mood symptoms who were being treated with an antidepressant were included. Improvements in depressive symptoms and anxiety were observed only in the oral estrogen plus progesterone group compared with the placebo group.15
In a study of 172 euthymic peri- and postmenopausal women treated for 12 months with transdermal estrogen plus oral progesterone, investigators found that, unlike postmenopausal women and those in the late perimenopausal transition, only women in the early perimenopausal transition had a lower risk of developing depressive symptoms.16
Bottom line
This complex literature suggests that ET/HT interventions are most likely to be successful when implemented early in the menopausal transition. The clearest indication for the use of HT is for perimenopausal women experiencing depression who are also experiencing menopausal symptoms (for example, bothersome hot flashes). There is little evidence that the use of ET/HT in late perimenopausal or postmenopausal women effectively treats depression; accordingly, HT is not recommended for the treatment of mood disorders in this population. The more ambiguous cases are those of perimenopausal women who are depressed but do not have classic vasomotor symptoms; some evidence supports the antidepressant efficacy of HT in this setting.11 Although some studies suggest that HT can be effective in preventing depression in perimenopausal women, more evidence is needed.16
WHAT THIS EVIDENCE MEANS FOR PRACTICE
A trial of ET/EPT is reasonable in perimenopausal women with depression and classic menopausal symptoms. Use of HT also can be considered either alone or in combination with an SSRI in perimenopausal women with depression who do not have significant classic menopausal symptoms. However, HT is not recommended as prophylaxis against depression in euthymic perimenopausal women. Finally, keep in mind that the use of HT to address mood issues constitutes off-label use.
A trial of ET/EPT is reasonable in perimenopausal women with depression and classic menopausal symptoms. Use of HT also can be considered either alone or in combination with an SSRI in perimenopausal women with depression who do not have significant classic menopausal symptoms. However, HT is not recommended as prophylaxis against depression in euthymic perimenopausal women. Finally, keep in mind that the use of HT to address mood issues constitutes off-label use.
The menopause transition: A key period for strategizing CVD risk factor reduction
Chrisandra L. Shufelt, MD, MS, NCMP
Dr. Shufelt is Associate Director of the Barbra
Streisand Women’s Heart Center, Smidt
Heart Institute, Cedars-Sinai Medical Center,
Los Angeles, California.
JoAnn E. Manson, MD, DrPH, NCMP
Dr. Manson is Professor of Medicine and the
Michael and Lee Bell Professor of Women’s
Health at Harvard Medical School; Professor
in the Department of Epidemiology, Harvard
T.H. Chan School of Public Health; and Chief
of the Division of Preventive Medicine
at Brigham and Women’s Hospital, Boston,
Massachusetts.
The authors report no financial relationships relevant to this article. Dr. Manson is a coauthor of the AHA Scientific Statement discussed in this article.
In the United States, nearly one-half of a woman’s life, on average, will be lived after menopause. For women with natural menopause, the menopause transition (MT) can begin 2 to 7 years before and may extend 1 year past the final menstrual period, which occurs at an average age of 51 years. For women with surgical menopause, the MT occurs abruptly with the sudden loss of endogenous ovarian hormones. Both types of transitions mark a critical time period when reproduction and endogenous sex hormone levels diminish and when cardiovascular disease (CVD) risk factors begin to rise.
The 2020 American Heart Association (AHA) scientific statement, “Menopause transition and cardiovascular disease risk: Implications for timing of early prevention,” highlights the MT as a window of opportunity for CVD prevention.1
CVD risk factors associated with ovarian aging
In the AHA scientific statement, data from several longitudinal women’s health studies were used to identify which CVD risk factor changes during the MT are related to ovarian aging as opposed to chronologic aging. Independent of aging, those associated with reproductive or ovarian aging included an increase in serum total cholesterol, low-density lipoprotein cholesterol (LDL-C), and apolipoprotein B. Changes in high-density lipoprotein cholesterol (HDL-C) particles and function also occur during the MT, which may explain why higher HDL-C levels during the MT and the postmenopausal years are not as cardioprotective as during the premenopausal period.
Changes in body composition and adipose tissue distribution also are associated with ovarian aging, with reduction in muscle mass and lean body mass and an increase in abdominal/visceral fat and subcutaneous adipose tissue. Although these body composition changes reflect ovarian aging, midlife weight gain is more closely related to chronologic aging.
The risk of the metabolic syndrome constellation of risk factors was found to be more closely associated with ovarian aging, whereas changes in blood pressure, insulin, and glucose individually tracked more closely with chronologic aging. Additionally, the AHA statement notes the research that identified several symptoms during the MT—including vasomotor symptoms, sleep disturbance, and depression—as being associated with more adverse CVD risk factor status and with subclinical measures of atherosclerosis. Additional research on the mechanistic basis for these associations is needed.
Chronologic age and type of menopause
Notably, a woman’s age and type of menopause matter with respect to CVD risk. Higher CVD risk is seen in women with premature onset (age < 40 years) or early onset (age < 45 years) of menopause and in women undergoing surgical menopause (bilateral oophorectomy) before age 45. In general, menopausal hormone therapy (HT) is recommended for women with premature or early menopause, whether natural or surgical, with continuation through at least the average age of natural menopause. In other women, although not recommended for the express purpose of CVD prevention, menopausal HT is appropriate for the treatment of bothersome vasomotor or other menopausal symptoms, especially when therapy is started before age 60 or within 10 years of menopause among women who are not at elevated risk of CVD.
While the AHA statement suggests that some women who begin estrogen early in menopause may experience reduced coronary heart disease risk, major research gaps remain with regard to HT dose, formulation, route of delivery, and recommended duration of treatment.
An opportunity to promote healthy lifestyle behaviors
Translating the AHA’s first-of-its-kind scientific statement into clinical practice requires recognition and awareness of the MT as a unique phase in a woman’s life associated with myriad changes in CVD risk factors. The statement underscores that the MT is an important time to target behavioral changes to promote CVD risk reduction, including lifestyle modifications in the AHA’s Life’s Simple 7 components (increased physical activity, smoking cessation, healthy diet, avoidance of weight gain) as well as vigilant control of blood pressure, cholesterol, and glucose levels. The MT is truly a window of opportunity for reinvigorated efforts to lower women’s CVD risk. ●
Reference
1. El Khoudary SR, Aggarwal B, Beckie TM, et al; American Heart Association Prevention Science Committee of the Council on Epidemiology and Prevention; and Council on Cardiovascular and Stroke Nursing. Menopause transition and cardiovascular disease risk: implications for timing of early prevention: a scientific statement from the American Heart Association. Circulation. 2020;142:e506-e532. doi: 10.1161/CIR.000000000000912.