Clinical trial Recruiting at 1 site Interventional Ages 18 to 50 Women only

Papaverine to shorten the second stage of labor after double-balloon cervical ripening

Official title: Use of Papaverine to Shorten the Second Stage/Duration of Labor in Pregnant Women After Cervical Ripening by Double-balloon Catheter

Run by Hillel Yaffe Medical Center · NCT07237880 · Data updated 2026-11-12

We will test whether a single IV dose of papaverine given right after removing a double-balloon catheter can shorten labor for term pregnant women having labor induced.

More Labor, Induced trials

Quick facts

Study typeInterventional
Ages18 Years to 50 Years
SexWomen only
Enrollment184 (estimated)
SponsorHillel Yaffe Medical Center
Government
Locations1 site (Hadera)
StatusRecruiting
StartedApril 22, 2025
Main results expectedApril 22, 2027
Study endsApril 22, 2027
Registry record updatedJanuary 6, 2026
Trial IDNCT07237880 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are pregnant people aged 18–50 with a singleton fetus at 37–42 weeks admitted for induction with a double-balloon catheter who plan a vaginal delivery and can give informed consent.

Probably not a fit

Patients with prior cesarean delivery, contraindications to vaginal delivery, immediate need for delivery, multiple gestation, major fetal anomaly, or known papaverine allergy are unlikely to benefit from participation.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a prospective, randomized, double-blind, placebo-controlled trial enrolling term (37–42 weeks) singleton pregnancies admitted for induction with a double-balloon catheter. After catheter removal participants are randomized 1:1 to receive either 80 mg IV papaverine or an identical-appearing saline placebo given by a midwife who does not make clinical decisions. Clinical staff and participants remain blinded to allocation, and outcomes focus on labor duration and progression after mechanical cervical ripening. The protocol excludes prior cesarean delivery, multiple gestation, contraindications to vaginal birth, known major fetal anomaly, or hypersensitivity to papaverine.

Why it matters

Potential benefit: If successful, this could shorten the duration of labor after mechanical cervical ripening and potentially reduce the need for additional interventions.

How similar studies have gone: Papaverine is used as an obstetric antispasmodic in practice, but its specific effect on labor progression after mechanical cervical ripening has been largely untested in randomized trials.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Pregnant individuals aged 18-50 years
* Singleton pregnancy
* Gestational age 37-42 weeks
* Admission for induction of labor with a double-balloon catheter
* Planned vaginal delivery
* Ability to provide informed consent

Exclusion Criteria:

* Previous cesarean delivery
* Multiple gestation
* Contraindication to vaginal delivery
* Known hypersensitivity to papaverine
* Known major fetal anomaly
* Any condition requiring immediate delivery or precluding safe participation (as determined by the treating physician)

Where it's running

  • Hillel Yaffe Medical Center
    Hadera, Israel
    Recruiting

Study contacts

  • Principal investigator: Esther Maor-Sagie, MD — Hillel Yaffe Medical Center
  • Study coordinator: Esther Maor-Sagie, MD
  • Email: estimaorsagie@gmail.com
  • Phone: 9727744248

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.