Randomized Control Trial of Intracervical Balloon Placement vs Oxytocin in Women With Term PROM and Unripe Cervices

March 22, 2024 updated by: Northwestern University

A Randomized Trial of Intracervical Balloon Placement Versus Intravenous Oxytocin in Women With Prelabor Rupture of Membranes and Unripe Cervices

This study is designed to determine if an intracervical balloon catheter (IBC) is better than oxytocin for induction of labor in the setting of premature rupture of membranes (PROM) or breaking the bag of water prior to onset of labor. The investigators suspect that an intracervical balloon catheter will shorten the time interval from initiation of induction of labor to delivery.

Study Overview

Detailed Description

There are not enough studies to support the use of intracervical balloon catheter (IBC) in term prelabor rupture of membranes (PROM). Prospective randomized studies comparing IBC placement to oxytocin use in induction of labor for term PROM do not exist. Intracervical Balloon Catheter has been shown to reduce duration of labor for women with intact membranes undergoing induction of labor. The practice at this institution is to use oxytocin to start contractions when a woman has PROM. This study will examine IBC compared to oxytocin use in term PROM. This will allow for the evaluation of a cervical ripening method for term PROM that may improve women's outcomes. Other outcomes for this study are rates of infection during labor, cesarean section, and adverse maternal and/or neonatal outcomes.

Study Type

Interventional

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Illinois
      • Chicago, Illinois, United States, 60611
        • Prentice Women's Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 50 years (Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

Nulliparous women, Women aged 18-50 years, Singleton gestation, Vertex presentation, Live fetus, Rupture of membranes confirmed by sterile speculum examination > 37 weeks of gestation at time of rupture of membranes, Bishop score < 6

Exclusion Criteria:

Multiparous women, Bishop score >6, Multifetal gestation, Contraindication to labor including placenta previa , Maternal fever prior to randomization: T >100.4 F , Known fetal anomalies

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Intracervical Balloon Catheter Group

The intracervical balloon catheter will be passed through the cervix either with a speculum exam or by a digital exam. Then the catheter balloon will be filled with 80 cc of sterile fluid. The catheter will be pulled to tension and taped to the patient's leg.

Patients will have the option to IV pain medication at the time of intracervical balloon placement. The intracervical balloon will remain in place for 6 hours unless it falls out spontaneously. At the 6 hour mark, a vaginal exam will assess if the intracervical balloon has pulled through the cervix or if it needs further tension. The intracervical balloon will remain in place a maximum of 12 hours. After a maximum of 12 hours in place the intracervical balloon will be removed and oxytocin will be started per protocol.

cervical ripening balloon
medication used to induce contractions
Active Comparator: Immediate low-dose oxytocin infusion group
At our institution the policy for oxytocin infusion is to start at a low dose of 2mu/min and to increase by 2mu/min at 15 to 20 minute intervals based on how often uterine contractions are occuring. A specific order from a physician is required to increase the oxytocin dose above 20 mu/min. Oxytocin will be titrated per usual protocol.
medication used to induce contractions

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Time from start of induction defined as time of IBC (intracervical balloon catheter) placement or initiation of oxytocin until delivery in hours
Time Frame: 24-48 hours/duration of induction of labor
length of induction
24-48 hours/duration of induction of labor

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Length of first stage of labor
Time Frame: delivery (from initial cervical dilation to 10 cm cervical dilation])
length of first stage of labor
delivery (from initial cervical dilation to 10 cm cervical dilation])
Cesarean delivery rate
Time Frame: 24-48 hours/duration of induction of labor
number of cesarean deliveries
24-48 hours/duration of induction of labor
chorioamnionitis
Time Frame: 24-48 hours/duration of induction of labor
Maternal temperature >100.4 F during labor with associated maternal or fetal tachycardia
24-48 hours/duration of induction of labor
Endometritis
Time Frame: from time of delivery until 2 days after delivery for vaginal deliveries and 3 days after delivery for cesarean sections
temperature >100.4 F in the postpartum period with initiation of antibiotics in postpartum period
from time of delivery until 2 days after delivery for vaginal deliveries and 3 days after delivery for cesarean sections
Postpartum hemorrhage
Time Frame: at time of delivery and up to 24 hours after delivery
Estimated blood loss (EBL) >500 cc from a vaginal delivery and EBL >1000 cc from a cesarean delivery
at time of delivery and up to 24 hours after delivery
Epidural use
Time Frame: 24-48 hours/duration of induction of labor
epidural anesthesia use during labor
24-48 hours/duration of induction of labor
Neonatal 5-minute Apgar score
Time Frame: 5 minutes after delivery
apgar score at 5 minutes of life after delivery of neonate
5 minutes after delivery
Neonatal umbilical arterial and venous acid base status
Time Frame: at the time of delivery
assessment of acid-base status of neonate at the time of delivery
at the time of delivery

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Whitney You, MD, Northwestern University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

November 1, 2018

Primary Completion (Estimated)

May 1, 2020

Study Completion (Estimated)

September 1, 2020

Study Registration Dates

First Submitted

April 19, 2017

First Submitted That Met QC Criteria

May 30, 2017

First Posted (Actual)

June 1, 2017

Study Record Updates

Last Update Posted (Actual)

March 26, 2024

Last Update Submitted That Met QC Criteria

March 22, 2024

Last Verified

March 1, 2024

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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