Multicenter trial of a simplified mifepristone medical abortion regimen.


Shannon, CS; Winikoff, B; Hausknecht, R; Schaff, E; Blumenthal, PD; Oyer, D; Sankey, H; Wolff, J; Goldberg, R; (2005) Multicenter trial of a simplified mifepristone medical abortion regimen. Obstetrics and gynecology, 105 (2). pp. 345-51. ISSN 0029-7844 DOI: https://doi.org/10.1097/01.AOG.0000152003.94320.59

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Abstract

OBJECTIVE: To provide evidence regarding the safety, efficacy, and acceptability of 200 mg mifepristone followed by home administration of 400 mug oral misoprostol METHODS: The 376 women enrolled in this prospective, open-label, multicenter trial were administered mifepristone in the clinic and were given 2 tablets of 200 mug misoprostol to swallow at home 48 hours later. On day 15, women returned to the clinic for a gynecologic examination. Success was defined as a complete termination without surgical intervention or additional misoprostol by day 21. All participants completed an exit interview before discharge from the study RESULTS: Of the women enrolled, 58.8% had gestations of between 43 and 49 days, 54.7% had had a previous abortion, and 76% had had a previous pregnancy. Of the 354 women included in the efficacy analysis, 324 (91.5%) had a successful termination. The most common adverse effects reported by patients were pain or cramps (93.2%) and nausea (66.6%), followed by weakness (54.7%), headache (46.2%), and dizziness (44.4%). Overall acceptability of the regimen was high, with 63.3% of women reporting that it was very satisfactory and an additional 23% reporting that it was satisfactory CONCLUSION: A regimen of 200 mg mifepristone followed in 48 hours by home administration of 400 mug oral misoprostol is effective, associated with rare severe adverse effects or adverse events, and acceptable for women seeking medical abortion of pregnancies of up to 49 days duration as compared with the regimen currently approved by the Food and Drug Administration. LEVEL OF EVIDENCE: III.

Item Type: Article
Faculty and Department: Faculty of Epidemiology and Population Health > Dept of Population Health (2012- )
PubMed ID: 15684163
Web of Science ID: 226700600021
URI: http://researchonline.lshtm.ac.uk/id/eprint/2099

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