Estrogen Replacement Therapy

BackgroundThere remains uncertainty about the impact of menopausal hormone therapy (MHT) on women's health. A systematic, comprehensive assessment of the effects on multiple outcomes is lacking. We conducted an umbrella review to comprehensively summarize evidence on the benefits and harms of MHT across diverse health outcomes.Methods and findingsWe searched MEDLINE, EMBASE, and 10 other databases from inception to November 26, 2017, updated on December 17, 2020, to identify systematic reviews or meta-analyses of randomized controlled trials (RCTs) and observational studies investigating effects of MHT, including estrogen-alone therapy (ET) and estrogen plus progestin therapy (EPT), in perimenopausal or postmenopausal women in all countries and settings. All health outcomes in previous systematic reviews were included, including menopausal symptoms, surrogate endpoints, biomarkers, various morbidity outcomes, and mortality. Two investigators independently extracted data and assessed methodological quality of systematic reviews using the updated 16-item AMSTAR 2 instrument. Random-effects robust variance estimation was used to combine effect estimates, and 95% prediction intervals (PIs) were calculated whenever possible. We used the term MHT to encompass ET and EPT, and results are presented for MHT for each outcome, unless otherwise indicated. Sixty systematic reviews were included, involving 102 meta-analyses of RCTs and 38 of observational studies, with 102 unique outcomes. The overall quality of included systematic reviews was moderate to poor. In meta-analyses of RCTs, MHT was beneficial for vasomotor symptoms (frequency: 9 trials, 1,104 women, risk ratio [RR] 0.43, 95% CI 0.33 to 0.57, p ConclusionsMHT has a complex balance of benefits and harms on multiple health outcomes. Some effects differ qualitatively between ET and EPT. The quality of available evidence is only moderate to poor.

ObjectiveThe Kronos Early Estrogen Prevention Study (KEEPS) was designed to address gaps in understanding the effects of timely menopausal hormone treatments (HT) on cardiovascular health and other effects of menopause after the premature termination of the Women's Health Initiative.MethodThe KEEPS was a randomized, double-blinded, placebo-controlled trial to test the hypothesis that initiation of HT (oral conjugated equine estrogens [o-CEE] or transdermal 17β-estradiol [t-E2]) in healthy, recently postmenopausal women (n = 727) would slow the progression of atherosclerosis as measured by changes in carotid artery intima-media thickness (CIMT).ResultsAfter 4 years, neither HT affected the rate of increase in CIMT. There was a trend for reduced accumulation of coronary artery calcium with o-CEE. There were no severe adverse effects, including venous thrombosis. Several ancillary studies demonstrated a positive effect on mood with o-CEE, and reduced hot flashes, improved sleep, and maintenance of bone mineral density with both treatments. Sexual function improved with t-E2. There were no significant effects of either treatment on cognition, breast pain, or skin wrinkling. Variants of genes associated with estrogen metabolism influenced the age of menopause and variability in effects of the HT on CIMT. Platelet activation associated with the development of white matter hyperintensities in the brain.ConclusionsKEEPS and its ancillary studies have supported the value and safety of the use of HT in recently postmenopausal women and provide a perspective for future research to optimize HT and health of postmenopausal women. The KEEPS continuation study continues to pursue these issues.

Menopausal hormone therapy (HT) prescribing practices have evolved over the last few decades guided by the changing understanding of the treatment's risks and benefits. Since the Women's Health Initiative (WHI) trial results in 2002, including post-intervention analysis and cumulative 18-year follow up, it has become clear that the risks of HT are low for healthy women less than age 60 or within ten years from menopause. For those who are experiencing bothersome vasomotor symptoms, the benefits are likely to outweigh the risks in view of HT's efficacy for symptom management. HT also has a role in preventing osteoporosis in appropriate candidates for treatment. A comprehensive overview of the types, routes, and formulations of currently available HT, as well as HT's benefits and risks by outcomes of interest are provided to facilitate clinical decision making.

BackgroundMetabolic dysfunction-associated steatotic liver disease (MASLD) is the most common chronic liver disease globally. Menopause is associated with increased hepatic fat deposition and thus metabolic dysfunction, contributing to heightened risk of progressive liver and cardiovascular disease. Hormone replacement therapy (HRT), supported by pre-clinical data, may be associated with a lower risk.MethodsWe performed a retrospective cohort study using the TriNetX global federated research network. Eligible participants were peri-menopausal women (ICD-10 codes N95/Z78.0, AND age 40-65 years) with pre-existing MASLD (based on ICD-10 codes K76.0/K75.81 or positive modified hepatic steatosis index plus ≥ 1 metabolic syndrome, MetS, trait). Patients initiating HRT (oestrogen ± progesterone) were compared with untreated controls using 1:1 propensity score matching for demographics, comorbidities, biochemistry and medications. The primary outcome was a composite of major adverse liver outcomes (MALO: portal hypertension, varices, ascites, spontaneous bacterial peritonitis, encephalopathy, hepatorenal/pulmonary syndromes, cirrhosis, decompensated liver disease, hepatocellular carcinoma, liver transplant). Secondary outcomes were individual MALO components, type 2 diabetes (T2D), major adverse cardiovascular events (MACE), breast and endometrial cancer, and venous thromboembolism (VTE). Cox regression generated hazard ratios (HRs) with 95% CIs over 5 years. Sensitivity analyses adjusted for geography, hormone type, and degree of obesity.ResultsAfter matching, 21 639 patients were included in each treatment arm. HRT was associated with a significantly reduced risk of MALO (HR 0.80; 0.71, 0.9), largely driven by reductions in ascites and SBP (0.78; 0.64, 0.95), and liver cirrhosis (0.75; 0.63, 0.90), and reduced risk of cardiometabolic outcomes: T2D (0.90; 0.84, 0.96), and MACE (0.90; 0.83, 0.98). HRT was not associated with increased risk of breast cancer or VTE, whilst endometrial cancer risk was reduced (0.49; 0.40, 0.61). Oestrogen was linked to greater benefits compared to progesterone, and patients with mild-moderate obesity experienced more significant risk reduction.ConclusionTreatment of peri-menopausal symptoms with HRT, in patients with pre-existing MASLD, is associated with a lower 5-year risk of major liver and cardiometabolic disease. These findings support early basic science research and should prompt a closer examination through clinical trials.