IV papaverine to speed delivery after term premature rupture of membranes

I.V Papavrine for Labor Induction in Term PROM: A Prospective Randomized Controlled Trial

Phase 4 Interventional Western Galilee Hospital-Nahariya · NCT07517796

This trial will test whether a single intravenous dose of papaverine given around 12 hours after membranes break helps women at term with an unfavorable cervix deliver sooner and improves outcomes for mother and baby.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment110 (estimated)
Ages18 Years to 45 Years
SexFemale
SponsorWestern Galilee Hospital-Nahariya Government
Locations1 site (Nahariya, Israel)
Trial IDNCT07517796 on ClinicalTrials.gov

What this trial studies

This is a randomized, placebo-controlled Phase 4 trial at Galilee Medical Center comparing IV papaverine to placebo in women with term premature rupture of membranes (PROM) and a Bishop score below 8. Eligible women with singleton, cephalic, viable fetuses who present within 12 hours of membrane rupture will be enrolled and randomized to receive papaverine or placebo, with the dose given around 12 hours after PROM. The primary outcome is the interval from membrane rupture to delivery, and secondary outcomes include maternal and neonatal infectious morbidity and other labor outcomes. The trial tests whether an antispasmodic that relaxes cervical smooth muscle can shorten latency and improve delivery course without increasing harms.

Who should consider this trial

Good fit: Women with singleton term pregnancies (37–42 weeks), PROM within 12 hours before enrollment, Bishop score <8, cephalic presentation, a viable fetus with reassuring heart rate, and no contraindication to vaginal delivery.

Not a fit: Women with multiple gestation, prior cesarean, major fetal anomalies, meconium-stained fluid, suspected chorioamnionitis, or other contraindications to vaginal delivery are excluded and would not be expected to benefit from this intervention.

Why it matters

Potential benefit: If successful, this could shorten the time from membrane rupture to delivery and potentially reduce maternal and neonatal infection risk and need for additional interventions.

How similar studies have performed: Antispasmodic agents have previously been reported to speed cervical dilation and shorten the first stage of labor in some settings, but IV papaverine specifically for term PROM has not been systematically tested and is relatively novel in this indication.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* • Singleton pregnancy

  * Term gestation (37-42 weeks)
  * Term PROM prior to active labor
  * Duration of PROM \<12 hours at enrollment
  * Bishop score \<8
  * Cephalic presentation
  * Viable fetus with reassuring fetal heart rate

Exclusion Criteria:

* • Multiple gestation

  * Previous cesarean delivery
  * Major fetal anomalies
  * Contraindication to vaginal delivery
  * Meconium-stained amniotic fluid
  * Suspected chorioamnionitis

Where this trial is running

Nahariya, Israel

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Premature Rupture of Membranespremature rupture of membranespapaverinebishop score
Last reviewed 2026-06-10 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.