Mifepristone for induction of labour

Area of Science:

• Reproductive Medicine
• Obstetrics
• Pharmacology

Background:

• Progesterone inhibits uterine contractions; antiprogestins like mifepristone antagonize progesterone.
• Mifepristone is used for medical termination of early/mid-pregnancy.
• Animal studies suggest mifepristone's potential for labor induction in late pregnancy.

Purpose of the Study:

• To evaluate mifepristone's effects on third-trimester cervical ripening and labor induction.

Main Methods:

• Systematic review of randomized controlled trials.
• Searched Cochrane databases and reference lists.
• Included trials with random allocation, adequate concealment, and meaningful outcomes.

Main Results:

• Seven trials (594 women) compared mifepristone to placebo/no treatment.
• Mifepristone significantly improved cervical favorability and increased delivery rates within 48-96 hours.
• Reduced rates of cesarean section observed; limited data on fetal/maternal outcomes.

Conclusions:

• Mifepristone demonstrates superiority over placebo for cervical ripening and labor induction.
• Evidence suggests a potential reduction in cesarean sections.
• More research is required to support its use and compare it with alternative induction methods.