The use of combined hormonal contraceptives for the treatment of endometriosis-related pain: a systematic review of the evidence

Studies suggest that CHC treatment is effective for endometriosis-related pain, but the available data are of low quality and are insufficient to determine the relative benefit compared with other therapies.

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Volume 110, Issue 1, Pages 137–152.e1

Authors:

Jeffrey T. Jensen, M.D., M.P.H., William Schlaff, M.D., Keith Gordon, Ph.D.

Abstract:

Objective

To review the available clinical evidence on the use of combined hormonal contraceptive (CHC) agents (estrogen [E]-progestin combinations) for the treatment of endometriosis-related pain.

Design

A systematic review of the MEDLINE, Embase, and Derwent Drug File databases for prospective clinical studies.

Setting

Not applicable.

Patient(s)

Women with endometriosis diagnosed by validated means.

Intervention(s)

Combined hormonal contraceptive agents, active comparators, placebo, or no treatment.

Main Outcome Measure(s)

Endometriosis-related pain (dysmenorrhea, pelvic pain, and dyspareunia).

Result(s)

Nine randomized controlled trials and nine observational studies met the inclusion criteria. The quality of data was low: only two of the nine randomized trials were placebo controlled, and most trials were not blinded. The CHC agents were reported to significantly reduce dysmenorrhea, pelvic pain, and dyspareunia from baseline in most studies; continuous administration seemed to be more useful than cyclic administration. The effectiveness of CHC agents for pain reduction was similar to or less than that of oral progestins and GnRH agonists.

Conclusion(s)

The available literature suggests that CHC treatment is effective for relief of endometriosis-related dysmenorrhea, pelvic pain, and dyspareunia; however, the supportive data are of low quality. Furthermore, insufficient data exist to reach conclusions about the overall superiority of any given CHC therapy, and the relative benefit in comparison to other approaches. Additional high-quality studies are needed to clarify the role of CHC agents and other treatments in women with endometriosis-related pain.


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Fertility and Sterility® is an international journal for obstetricians, gynecologists, reproductive endocrinologists, urologists, basic scientists and others who treat and investigate problems of infertility and human reproductive disorders. The journal publishes juried original scientific articles in clinical and laboratory research relevant to reproductive endocrinology, urology, andrology, physiology, immunology, genetics, contraception, and menopause. Fertility and Sterility® encourages and supports meaningful basic and clinical research, and facilitates and promotes excellence in professional education, in the field of reproductive medicine.

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