The effects of combining norethindrone with a gonadotropin‐releasing hormone agonist in the treatment of symptomatic endometriosis

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AI-generated summary by claude@2026-06, 2026-06-06

Daily norethindrone combined with a GnRH agonist effectively suppressed endometriosis pain and reduced visible implants with minimized vasomotor symptoms and preserved bone mineral density.

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Abstract

Treatment of endometriosis with gonadotropin-releasing hormone agonists (GnRH-a) is associated with side effects secondary to the induced hypoestrogenic state. In an effort to ameliorate these symptoms, 10 patients with symptomatic endometriosis self-administered the GnRH-a [D-His6(Imbzl)-Pro9-NET]-GnRH in combination with norethindrone daily for 24 weeks. Painful symptoms were significantly suppressed after therapy (P less than 0.005). Objective review of photographs taken at laparoscopy before and after therapy demonstrated significant reduction of visible implants (P less than 0.005). Vasomotor symptoms were minimized when compared with a group of 16 patients previously treated with GnRH-a alone. Bone mineral density of the distal radius assessed by single photon absorptiometry was not reduced during therapy, although lumbar spine bone density assessed by quantitative computerized tomography was minimally but reversibly reduced. No metabolic derangements were detected. The combination of norethindrone with GnRH-a is a well tolerated and effective means of treating symptomatic endometriosis.

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Condition tags

mesh:D004715endometriosis

MeSH descriptors

Buserelin Endometriosis Norethindrone Adult Buserelin Drug Therapy, Combination Endometriosis Endometriosis Endometriosis Estradiol Estradiol Estrone Estrone Female Follicle Stimulating Hormone Follicle Stimulating Hormone Humans Luteinizing Hormone Luteinizing Hormone Norethindrone

Citation neighborhood

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References (20)

Cited by (44)

Source provenance

europepmc
last seen: 2026-06-04T01:30:01.192114+00:00
openalex
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