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PROMMO Trial: Oral Misoprostol vs IV Oxytocin

PROMMO Trial: Prelabor Rupture of Membranes Managed With Oral Misoprostol Versus Intravenous Oxytocin

Status
Completed
Phases
Early Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04478942
Acronym
PROMMO
Enrollment
138
Registered
2020-07-21
Start date
2020-10-26
Completion date
2025-01-14
Last updated
2025-08-28

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

Conditions

Induction of Labor Affected Fetus / Newborn, Premature Rupture of Membrane

Brief summary

This is a prospective, randomized trial looking at the ideal method of labor induction for women with prelabor rupture of membranes and an unfavorable cervical Bishop score. The study will compare oral misoprostol and intravenous oxytocin.

Detailed description

The purpose of this study is to look at optimal induction management of prelabor rupture of membranes (PROM) at or beyond 34 weeks gestational age. Objective 1: To determine if there is a decrease in time from initiation of induction of labor to vaginal delivery in women with an unfavorable cervix with the use of oral misoprostol versus intravenous oxytocin. Hypothesis: Cervical ripening with misoprostol will be beneficial in women with an unfavorable cervix. Sub objective 1: To determine if the use of oral misoprostol for cervical ripening decreases the rate of postpartum hemorrhage in women with PROM. Hypothesis: Misoprostol use will result in significantly lower rate of postpartum hemorrhage. Sub objective 2: To evaluate the rates of infectious morbidity in peripartum women and neonates exposed to misoprostol versus oxytocin in PROM. Hypothesis: The use of oral misoprostol will result in lower rates of infectious morbidity in mother and neonate. Sub objective 3: To analyze patient satisfaction surveys. Hypothesis: Patients in the oral misoprostol group will be more satisfied with their labor experience. Exploratory Outcome To determine if there is a difference in cost between induction of labor in women with an unfavorable cervix with the use of oral misoprostol versus intravenous oxytocin. Hypothesis: The use of oral misoprostol will be cost effective in women presenting with PROM and an unfavorable cervix.

Interventions

DRUGMisoprostol Oral Product

Misoprostol will be dosed using the preexisting UnityPoint Health-Meriter Protocol for oral misoprostol administration.

Intravenous oxytocin administration will also follow standard, UnityPoint Health-Meriter Protocol.

Sponsors

University of Wisconsin, Madison
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Early Term to late term pregnancy (\>37 weeks and 0 days and \<42 weeks and 0 days) * Late Preterm Pregnancy (34 weeks and 0 days and \<37 weeks) * Confirmed rupture of membranes by either sterile speculum exam or AmniSure * Simplified Bishop Score ≤ 6 * Maternal Age \> 18 years old * Singleton gestation * Appropriate gestational age dating by certain LMP or ultrasound performed prior to 20 weeks gestational age

Exclusion criteria

* Concern for intra-amniotic infection * Previous Cesarean delivery * Lack of appropriate dating criteria for the pregnancy * Inability to give informed consent in the patient's native language * Known bleeding disorder such as von Willebrand's disease or hemophilia * Anticoagulation administration within 24 hours of delivery

Design outcomes

Primary

MeasureTime frameDescription
Primary Endpoint: Time from initial medication administration to vaginal deliveryUp to 72 hourstime from initiation of induction of labor to vaginal delivery in women with an unfavorable cervix with the use of oral misoprostol versus intravenous oxytocin

Secondary

MeasureTime frameDescription
Secondary endpoint 1: Rate of Postpartum Hemorrhageup to 24 hours for immediate postpartum hemorrhagethe rate of postpartum hemorrhage in women with prelabor rupture of membranes with use of oral misoprostol for cervical ripening
Secondary endpoint 2: Rate of Suspected or Confirmed Intrapartum Intramniotic InfectionPrior to deliveryRates of infectious morbidity in peripartum women and neonates exposed to misoprostol versus oxytocin in prelabor rupture of membranes.
Secondary endpoint 3: Rate of Suspected EndometritisFrom delivery to 6 weeks postpartumpatient satisfaction surveys
Secondary endpoint 4: Rate of Infectious Morbidity for Neonatesup to 6 weeks of lifeNeonatal infection that is diagnosed within the first 6 weeks of life related to maternal infection diagnosed by positive blood cultures or fever.
Secondary endpoint 5: Participant Satisfaction as Measured by modified Labour Agentry ScalePostpartum day one with repeat instrument at 6 weeks postpartumThe modified labour agentry scale has scores that indicate satisfaction with the patient's experience in labor

Countries

United States

Outcome results

None listed

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