Treatment of Endometriosis and Chronic Pelvic Pain with Letrozole and Norethindrone Acetate
Non-randomised trial
OA: bronze
CC0
⤵ 7 in-corpus citations
AI-generated summary
This study investigated the efficacy of letrozole combined with norethindrone acetate in treating endometriosis and chronic pelvic pain.
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Abstract
BACKGROUND: Endometriosis is encountered in 7-10% of actively menstruating women, with a suspected prevalence as high as 22% in asymptomatic women. It is an important cause of chronic pelvic pain. The aim of this study was to evaluate the efficacy and safety of letrozole in combination with norethindrone acetate and calcium in the management of endometriosis associated pelvic pain.
METHODS: Prospective non-randomized open label study was carried out including 20 patients with endometriosis related pelvic pain that was refractory to previous treatments.
RESULT: In all 14 patients completed the study. All patients showed significant improvement of pain scores and revealed significant improvement of features of endometriosis on being given letrozole in combination with norethindrone acetate and calcium.
CONCLUSION: Letrozole is an effective drug for treatment of endometriosis.
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References (13)
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- Prolonged gonadotropin-releasing hormone agonist treatment of symptomatic endometriosis: the role of cyclic sodium etidronate and low-dose norethindrone “add-back” therapy via openalex
- Role of the vaginally administered aromatase inhibitor anastrozole in women with rectovaginal endometriosis: a pilot study via openalex
- Successful treatment of an aggressive recurrent post-menopausal endometriosis with an aromatase inhibitor via openalex
- Treatment of symptomatic rectovaginal endometriosis with an estrogen-progestogen combination versus low-dose norethindrone acetate via openalex
- W2412063026 via openalex
Cited by (8)
- Hypomethylation of IL6ST promotes development of endometriosis by activating JAK2/STAT3 signaling pathway 2025
- Endometrial regeneration and the role of the extracellular matrix: mechanisms, challenges, and future perspectives 2025
- Impact of endometriosis on women's life decisions and goal attainment: a cross-sectional survey of members of an online patient community 2022
- Uso de inhibidores de la aromatasa en el tratamiento del dolor pélvico asociado a endometriosis: revisión sistemática 2021
- Uso de inhibidores de la aromatasa en el tratamiento del dolor pélvico asociado a endometriosis: revisión sistemática 2021
- Discerning Endometriosis as a Multifaceted Entity: A Comprehensive Review 2020
- "Per vaginam" topical use of hormonal drugs in women with symptomatic deep endometriosis: a narrative literature review 2017
- Systematic review of endometriosis pain assessment: how to choose a scale? 2014
Source provenance
- europepmc
- last seen: 2026-10-14T06:08:39.101224+00:00
- openalex
- last seen: 2026-06-10T17:14:06.276822+00:00
- pubmed
- last seen: 2026-10-08T21:18:11.460223+00:00
License: CC0
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