ClinicalTrials.gg
RecruitingNCT07826533Updated Sep 17, 2026

Intravenous Papaverine for Term Prelabor Rupture of Membranes

An interventional study of Papaverine and Normal Saline Placebo Infusion in Premature Rupture of Fetal Membranes, sponsored by Wolfson Medical Center. Recruiting at 1 site in Israel. Open to female participants. Per ClinicalTrials.gov, last updated 2026-09-17.

Sponsored by Wolfson Medical Center · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 1 year 5 months after the study started (first participant enrolled Mar 2025, registered Sep 2026).
  • Started Mar 2025; still recruiting 1 year 7 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
200
Allocation
Randomized
Sex
Female
01

Study summary

This randomized, double-blind, placebo-controlled trial evaluates whether intravenous papaverine, administered as an adjunct to oxytocin, shortens the time to delivery in women with term premature rupture of membranes (PROM). Participants are randomized in a 1:1 ratio to receive either intravenous papaverine 80 mg in 100 mL of 0.9% saline or 100 mL of 0.9% saline as placebo, administered one hour after initiation of oxytocin. The primary outcome is the interval from study infusion to delivery. Secondary outcomes include mode of delivery and maternal and neonatal outcomes.

Read the detailed description

Women hospitalized in the labor and delivery unit with term premature rupture of membranes at 37 weeks of gestation or later are screened for participation. Eligible participants have no active contractions, cervical dilation of less than 2 cm, vertex presentation, and a duration of membrane rupture between 2 and 12 hours.

Following informed consent, participants are randomized in a 1:1 ratio to receive intravenous papaverine 80 mg diluted in 100 mL of 0.9% saline or 100 mL of 0.9% saline as placebo. The study infusion is administered one hour after initiation of oxytocin.

Treatment allocation is blinded. One study-team member prepares the study solution according to the randomization table, while the remainder of the study team remains blinded to treatment allocation. The primary outcome is the interval from study infusion to delivery.

02

Conditions studied

  • Premature Rupture of Fetal Membranes

Keywords

  • Term PROM
  • Premature rupture of membranes
  • Papaverine
  • Labor induction
  • Oxytocin
03

In context

Fetal Membranes, Premature Rupture

100 studies on the registry are indexed under Fetal Membranes, Premature Rupture; 23 are open to participants now.

This study's planned enrollment of 200 is above the median of 150 across 59 interventional studies indexed under Fetal Membranes, Premature Rupture.

Browse Fetal Membranes, Premature Rupture studies →

Lead sponsor

Wolfson Medical Center is the lead sponsor of 118 studies on the registry; 17 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age ≥18 years
  • Gestational age ≥37 weeks with term PROM
  • No active contractions
  • Cervical dilation \<2 cm
  • Vertex presentation
  • PROM duration between 2 and 12 hours

Exclusion criteria

Exclusion Criteria:

  • Previous cesarean delivery
  • to vaginal delivery
  • Known fetal malformation
  • Known allergy to papaverine
  • Cardiac arrhythmia
  • Glaucoma
  • Hepatitis or other hepatic disease
  • Atrioventricular (AV) block
  • Congestive heart disease
  • Recent ischemic heart disease
  • Increased intracranial pressure
  • Active labor, defined as cervical dilation ≥6 cm
  • Contraindication to uterine relaxation, including significant uterine bleeding or fetal distress Active infection or chorioamnionitis Use of medications with potentially hazardous interactions with papaverine
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Care provider)
Enrollment
200 participants (estimated)

Study arms

  • Experimental
    Papaverine

    Participants received intravenous papaverine 80 mg diluted in 100 mL of 0.9% normal saline.

    Drug: Papaverine

  • Placebo comparator
    Placebo

    Participants received 100 mL of intravenous 0.9% normal saline as placebo.

    Drug: Normal Saline Placebo Infusion

Interventions

  • Papaverine 80 mg diluted in 100 mL of 0.9% normal saline, administered intravenously as a single study infusion.

  • DrugNormal Saline Placebo Infusion

    100 mL of 0.9% normal saline, administered intravenously as a single placebo study infusion.

    Also known as: 0.9% Sodium Chloride

06

What researchers measure

Primary outcomes

  1. Time From Study Infusion to Delivery

    Time, measured in hours, from administration of the assigned study infusion (papaverine or placebo) to delivery.

    Time frame: From administration of the study infusion until delivery, assessed up to 48 hours

Secondary outcomes

  1. Mode of Delivery

    Mode of delivery, categorized as vaginal or cesarean delivery

    Time frame: From rupture of membranes until delivery, assessed up to 48 hours

  2. Maternal Infectious Complications

    Proportion of participants with maternal infectious complications

    Time frame: From rupture of membranes until delivery, assessed up to 48 hours

  3. Postpartum Hemorrhage

    Proportion of participants with postpartum hemorrhage

    Time frame: From rupture of membranes until delivery, assessed up to 48 hours

  4. Apgar Score at 5 Minutes

    Apgar score recorded 5 minutes after birth, ranging from 0 to 10

    Time frame: 5 minutes after birth

  5. Umbilical Cord pH Below 7.1

    Proportion of neonates with umbilical cord blood pH below 7.1

    Time frame: At birth, based on umbilical artery cord blood sampling

  6. Neonatal Infection

    Proportion of neonates diagnosed with neonatal infection

    Time frame: From birth through neonatal hospital discharge, assessed up to 7 days after birth

07

Study locations

1 of 1 sites recruiting
08

References and documents

Publications

  • Prelabor Rupture of Membranes: ACOG Practice Bulletin, Number 217. Obstet Gynecol. 2020 Mar;135(3):e80-e97. doi: 10.1097/AOG.0000000000003700. PubMed 32080050 ↗
  • Middleton P, Shepherd E, Flenady V, McBain RD, Crowther CA. Planned early birth versus expectant management (waiting) for prelabour rupture of membranes at term (37 weeks or more). Cochrane Database Syst Rev. 2017 Jan 4;1(1):CD005302. doi: 10.1002/14651858.CD005302.pub3. PubMed 28050900 ↗
  • Abu Shqara R, Nakhleh Francis Y, Goldinfeld G, Haddad Y, Sgayer I, Lavinsky M, Lowenstein L, Frank Wolf M. Papaverine prior to catheter balloon insertion for labor induction: a randomized controlled trial. Am J Obstet Gynecol MFM. 2024 Jul;6(7):101388. doi: 10.1016/j.ajogmf.2024.101388. Epub 2024 May 31. PubMed 38825005 ↗
  • Singh KC, Jain P, Goel N, Saxena A. Drotaverine hydrochloride for augmentation of labor. Int J Gynaecol Obstet. 2004 Jan;84(1):17-22. doi: 10.1016/s0020-7292(03)00276-5. PubMed 14698825 ↗
  • Rohwer AC, Khondowe O, Young T. Antispasmodics for labour. Cochrane Database Syst Rev. 2013 Jun 5;2013(6):CD009243. doi: 10.1002/14651858.CD009243.pub3. PubMed 23737030 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Mar 2025 (actual). Primary completion is estimated for Apr 2027, 25 months after the start.

Of 23 interventional studies with no phase under Fetal Membranes, Premature Rupture, half reached primary completion within 28 months of starting (the median), counting those still running; a quarter within 13 and three quarters within 62. This study's planned 25 months is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 7, 2026
First posted
Sep 17, 2026
StartActual
Mar 20, 2025
Primary completionEst.
Apr 21, 2027
CompletionEst.
Apr 21, 2027
Last update
Sep 17, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 17, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07826533
Responsible party
Sponsor
First posted
Sep 17, 2026
Start date
Mar 20, 2025
Primary completion
Apr 21, 2027 (estimated)
Completion
Apr 21, 2027 (estimated)
Last update
Sep 17, 2026

Study contacts

Eliel Kedar Sade, MD
Contact
elielbob@gmaill.com
+972-52-6008068
Ornit Cohen
Contact
ornitc@wmc.gov.il
+972-3-5028399

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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