A prospective, randomised study to compare the effectiveness of the 24 hour versus 12 hour double doses regimen of levonorgestrel for emergency post-coital contraceptio

World Health Organisation (WHO) (Switzerland)0 个研究点目标入组 2,071 人开始时间: 2004年4月1日最近更新: 2015年1月13日

适应症

试验速览

暂无简介。

•1. Requesting emergency contraception within 120 hours of unprotected intercourse
•2. Only one act of unprotected intercourse during current cycle
•3. Willing to abstain from further acts during current cycle
•4. Regular menstrual cycles (24 to 42 days)
•5. Having at least one spontaneous cycle before current cycle
•6. Available for follow-up in the next six weeks
•7. Negative pregnancy test
•8. Willing to participate
•9. Not breastfeeding
•10. No use of hormonal contraceptives or of rhythm or natural family planning method of contraception during current cycle
•11. Not unsure about the date of last menstrual period

•1. Post-abortion or post-partum patients whose period had not yet returned
•2. Regular use of prescription drugs before admission to the study
•3. Intercourse during the treatment cycle greater than 120 hours before admission into the study

发起方

World Health Organisation (WHO) (Switzerland)