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Oral Versus Vaginal Misoprostol for Induction of Labor

A Single Dose of Oral Versus Vaginal Misoprostol for Induction of Labor: A Randomized Controlled Trial

Status
Completed
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00148473
Enrollment
180
Registered
2005-09-08
Start date
2000-03-31
Completion date
2001-10-31
Last updated
2005-09-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Termed Pregnancy With Indications for Labor Induction.

Keywords

Cervical ripening., Induction of labor., Misoprostol.

Brief summary

The purpose of this study is to compare the efficacy between a single dose of oral misoprostol 100 microgram and vaginal misoprostol 50 microgram for induction of labor.

Detailed description

Induction of labor is widely carried out all over the world in cases where continuation of pregnancy is hazardous to both the mother and/or fetus. The induction in a ripe cervix is not difficult but complications are significantly increased when the cervix is unripe. The only agent approved for cervical ripening and induction of labor in patients with an unripe cervix is dinoprostone(PGE2). Misoprostol is a synthetic PGE1 analogue marketed for the prevention and treatment of gastro-duodenal ulcers. Misoprostol costs much less than dinoprostone and does not require refrigeration and has few systemic side effects.In addition, it is rapidly absorbed orally and vaginally. Although misoprostol is not registered for such use, it has been widely used for obstetric indications such as induction of abortion and of labor. Misoprostol for induction of labor in preceding literatures mainly prescribed in multiple dosing regimen. The adverse effects on uterus potentially occur owing to the frequent administration of misoprostol. The objective of this study was to compare a single dose oral misoprostol with vaginal misoprostol.

Interventions

DRUGMisoprostol

Sponsors

Bangkok Metropolitan Administration Medical College and Vajira Hospital
Lead SponsorOTHER_GOV

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 48 Years
Healthy volunteers
Yes

Inclusion criteria

* A live singleton pregnancy at a gestation of \>37 weeks, with obstetric or medical indications for induction, and unfavorable cervix (the initial Bishop score of \<717), vertex presentation, reactive fetal heart rate pattern, absence of labor, and intact membranes without previous stripping. Post-term inductions were considered when gestational age was \>41 weeks.

Exclusion criteria

* Suspected cephalo-pelvic disproportion, estimated fetal weight of \>4000 grams, maternal age of \<18 years, parity of \>5, previous cesarean delivery or history of uterine incision, any contraindication for vaginal delivery or prostaglandins administration and suspected chorioamnionitis.

Design outcomes

Primary

MeasureTime frame
The time interval from induction to vaginal delivery and vaginal delivery rate within 24 hours.

Secondary

MeasureTime frame
Cesarean section rate.
Uterine tachysystole.
Rate of vaginal delivery within 24 hours.
Number of women received oxytocin.
Neonatal outcomes.
Uterine hyperstimulation syndrome.

Countries

Thailand

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026