The use of conjugated estrogens and bazedoxifene for the management of vasomotor symptoms in premenopausal and menopausal patients with endometriosis: a systematic review
review
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AI-generated summary
This systematic review found limited, high-risk evidence from two case reports/series on conjugated estrogens/bazedoxifene for endometriosis patients, suggesting potential symptom relief but lacking data on efficacy and safety.
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Abstract
OBJECTIVE: This systematic review investigated the impact of conjugated estrogens/bazedoxifene (CE/BZA) for treating perimenopausal and menopausal symptoms in patients with a history of endometriosis.
METHOD: The review followed PRISMA guidelines and was prospectively registered with PROSPERO (CRD42024617174). Without randomized controlled trials (RCTs), the Joanna Briggs Institute (JBI) Critical Appraisal Checklist for Case Reports and Case Series assessed methodology and risk of bias. An information specialist completed the search in June 2025 using Ovid MEDLINE, PubMed, Ovid EMBASE, and Web of Science, combining controlled vocabularies and keywords for dysmenorrhea, dyspareunia, endometriosis, perimenopausal, postmenopausal, menopause hormone therapy, Duavive, and CE/BZA. Eligible studies included RCTs, cohort studies, case reports, and case-control studies evaluating CE/BZA for vasomotor symptoms in premenopausal and menopausal endometriosis patients.
RESULTS: Of 1540 retrieved studies, two coauthors (J.C.M.-G., E.S.) independently screened titles and abstracts, selecting 20 for full-text review. Only two publications met inclusion criteria, one case report and one case series, representing nine patients (four detailed, five additional). No RCTs, cohort, or case-control studies directly addressed CE/BZA in endometriosis. Preliminary narrative evidence suggests pain and vasomotor symptom relief, though findings carry high risk of bias.
CONCLUSION: Because bazedoxifene antagonizes estrogen receptors and endometriosis is estrogen-dependent, CE/BZA may alter systemic inflammation or endothelial function. Although preclinical models show reduced lesion size, human evidence remains extremely limited and biased, insufficient to assess lesion recurrence or vascular safety. CE/BZA is currently indicated only for postmenopausal vasomotor symptoms; preliminary anecdotal evidence suggests symptom improvement, but large-scale comparative trials are urgently needed to establish safety and efficacy in endometriosis.
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References (18)
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SciLite annotations
chemicals 5
estrone
bazedoxifene
estrone
bazedoxifene
estrogen
organisms 1
human
Source provenance
- europepmc
- last seen: 2026-07-27T06:15:28.040536+00:00
- openalex
- last seen: 2026-07-27T06:07:00.875360+00:00
- pubmed
- last seen: 2026-07-27T06:09:29.080095+00:00
- scilite
- last seen: 2026-07-19T09:54:07.271699+00:00
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