Trial reportNeurology2016
Effects of hormone therapy on brain structure: A randomized controlled trial.
Trial report in Neurology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 4 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
38 citing papers in PubMed, 4 syntheses or guidelines pooled it, 74 citations in OpenAlex.
- Brazilian Guideline on Menopausal Cardiovascular Health - 2024.Arquivos brasileiros de cardiologia · 2024Guideline
- Is Hormone Replacement Therapy a Risk Factor or a Therapeutic Option for Alzheimer's Disease?International journal of molecular sciences · 2023Pooled it
- Systematic review and meta-analysis of the effects of menopause hormone therapy on risk of Alzheimer's disease and dementia.Frontiers in aging neuroscience · 2023Pooled it
- Long-term hormone therapy for perimenopausal and postmenopausal women.The Cochrane database of systematic reviews · 2017Pooled it
- Long-term cognitive effects of menopausal hormone therapy: Findings from the KEEPS Continuation Study.PLoS medicine · 2024Trial
- Menopausal hormone therapy, blood thrombogenicity, and development of white matter hyperintensities in women of the Kronos Early Estrogen Prevention Study.Menopause (New York, N.Y.) · 2020Trial
- Impact of menopausal hormone formulations on pituitary-ovarian regulatory feedback.American journal of physiology. Regulatory, integrative and comparative physiology · 2019Trial
- Brain structure and cognition 3 years after the end of an early menopausal hormone therapy trial.Neurology · 2018Trial
- Plasma orexin A levels in recently menopausal women during and 3 years following use of hormone therapy.Maturitas · 2017Trial
- Menopause and neurological disorders: a roadmap for research.Nature reviews. Neurology · 2026Review
- Hormone replacement therapy and its association with LATE-NC in older adults.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Migraine and menopause as converging factors in brain vulnerability: a hypothesis-driven perspective.The journal of headache and pain · 2026Review
- Review
- Advancing evidence-based regulation: Organization for the Study of Sex Differences and Society for Women's Health Research support FDA action on menopausal hormone therapy and encourage broader sex-informed drug label updates.Biology of sex differences · 2026Review
- Menopausal hormone therapy and risk of neuropsychiatric disease: a drug target Mendelian randomisation study.npj women's health · 2026Article
- Article
- Association of cancer history with structural brain aging markers of Alzheimer's disease and related dementias risk.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024Article
- Brazilian Guideline on Menopausal Cardiovascular Health - 2024.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2024Article
- Associations of endogenous estrogens, plasma Alzheimer's disease biomarkers, andFrontiers in aging neuroscience · 2024Article
- [Cognitive and psychoemotional changes in menopausal transition: The possibility of medical correction].Problemy endokrinologii · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
16 authors at 3 institutions in 1 country.
Funding
Abstract
objectiveTo investigate the effects of hormone therapy on brain structure in a randomized, double-blinded, placebo-controlled trial in recently postmenopausal women.
methodsParticipants (aged 42-56 years, within 5-36 months past menopause) in the Kronos Early Estrogen Prevention Study were randomized to (1) 0.45 mg/d oral conjugated equine estrogens (CEE), (2) 50 μg/d transdermal 17β-estradiol, or (3) placebo pills and patch for 48 months. Oral progesterone (200 mg/d) was given to active treatment groups for 12 days each month. MRI and cognitive testing were performed in a subset of participants at baseline, and at 18, 36, and 48 months of randomization (n = 95). Changes in whole brain, ventricular, and white matter hyperintensity volumes, and in global cognitive function, were measured.
resultsHigher rates of ventricular expansion were observed in both the CEE and the 17β-estradiol groups compared to placebo; however, the difference was significant only in the CEE group (p = 0.01). Rates of ventricular expansion correlated with rates of decrease in brain volume (r = -0.58; p ≤ 0.001) and with rates of increase in white matter hyperintensity volume (r = 0.27; p = 0.01) after adjusting for age. The changes were not different between the CEE and 17β-estradiol groups for any of the MRI measures. The change in global cognitive function was not different across the groups.
conclusionsVentricular volumes increased to a greater extent in recently menopausal women who received CEE compared to placebo but without changes in cognitive performance. Because the sample size was small and the follow-up limited to 4 years, the findings should be interpreted with caution and need confirmation. CLASSIFICATION OF EVIDENCE: This study provides Class I evidence that brain ventricular volume increased to a greater extent in recently menopausal women who received oral CEE compared to placebo.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.