A pilot study on the combined use of letrozole, mifepristone and misoprostol in termination of first trimester pregnancy up to 9 weeks' gestation.

Eur J Obstet Gynecol Reprod Biol

Department of Obstetrics and Gynaecology, University of Hong Kong, Hong Kong Special Administrative Region. Electronic address:

Published: December 2013

Objective: To assess the feasibility of adding letrozole to the standard regimen of mifepristone and misoprostol for termination of pregnancy up to 63 days.

Study Design: We recruited 50 subjects who had requested legal termination of pregnancy up to 63 days. Medical abortion was performed with a singe dose of 200 mg mifepristone and 10 mg of letrozole daily for 3 days followed by 800 mcg vaginal misoprostol.

Results: The complete abortion rate was 98% (95% CI: 94-100%). The median induction-to-abortion interval of the regimen was 5.1 h (range 1.2-56 h). No serious adverse effects were reported.

Conclusions: The results of this pilot study suggest that a regimen of mifepristone, letrozole and misoprostol is associated with a high complete abortion rate without major adverse events.

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http://dx.doi.org/10.1016/j.ejogrb.2013.09.017DOI Listing

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