A Comparative Study of the Efficacy and Safety of Two Misoprostol Regimens for Labour Induction at Term in Delta State: A Two-centre Triple-blind Randomised Controlled Trial.

In 30 seconds

This two-centre, triple-blind randomised controlled trial compared hourly titrated oral misoprostol with four-hourly 25 mcg vaginal misoprostol for labour induction in 260 singleton term pregnancies in Delta State, Nigeria. Vaginal delivery within 24 hours occurred in 96.2% of the oral-regimen group and 83.1% of the vaginal-regimen group; the abstract reports P < 0.338, which does not establish a statistically significant difference. Abnormal uterine contractions, abnormal fetal heart-rate patterns and caesarean section rates differed significantly between groups, favouring the oral regimen according to the authors. No uterine ruptures occurred.

Key findings

• Vaginal delivery within 24 hours occurred in 96.2% with hourly titrated oral misoprostol and 83.1% with four-hourly vaginal misoprostol.
• Rates of abnormal uterine contractions differed between groups (χ2 = 5.969, P = 0.015).
• Abnormal fetal heart-rate patterns differed between groups (χ2 = 6.660, P = 0.018), as did caesarean section rates (χ2 = 5.426, P = 0.015).
• No uterine ruptures occurred in either group during the study.

Why it matters

Misoprostol route and dosing schedule may affect both labour outcomes and safety indicators during term induction. This trial provides a direct randomised comparison in a multicentre Nigerian setting, with findings that may inform evaluation of oral titration as an alternative regimen. The reported delivery-rate comparison should be interpreted cautiously because the abstract’s stated P value does not support a significant difference.

What to keep in mind

The abstract reports P < 0.338 for the primary outcome, which does not demonstrate statistical significance and may reflect a reporting error. The study was conducted at two centres in one Nigerian state, limiting generalisability.