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Cervical Ripening as an Outpatient Method Using the Foley (COMFORT)

Cervical Ripening as an Outpatient Method Using the Foley: a Randomized Trial

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05759988
Acronym
COMFORT
Enrollment
2300
Registered
2023-03-08
Start date
2023-04-13
Completion date
2027-06-30
Last updated
2026-02-02

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

Keywords

Foley balloon catheter, Outpatient cervical ripening

Brief summary

A multicenter pragmatic randomized trial of nulliparous women undergoing a term (≥37 weeks) induction of labor wherein the provider intends to use a Foley catheter for cervical ripening. The investigators will be comparing outpatient cervical ripening with a Foley catheter to routine inpatient cervical ripening (Foley +/- other method). With this trial, the investigators aim to test our central hypothesis that outpatient Foley will decrease the primary Cesarean Delivery (CD) rate and risk of maternal/neonatal morbidity compared with inpatient cervical ripening.

Interventions

Outpatient Foley catheter placement for induction of labor

Sponsors

University of Pennsylvania
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Outcomes Assessor)

Masking description

Outcome assessor will be blinded to the group allocation

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 60 Years
Healthy volunteers
Yes

Inclusion criteria

* Eligible for induction of labor * Live singleton gestation ≥37 weeks and \<42 weeks * Nulliparous, ≥18 years of age with no previous deliveries \>20 weeks * Cephalic presentation * Intact membranes * Bishop score ≤8 and cervical dilation \<3 cm * English or Spanish speaking (Able to read/understand consent and instructions) * Have reliable transportation to get back to the hospital and have a self-reported safe residence to go home to with the Foley catheter

Exclusion criteria

* Known oligohydramnios (DVP \<2cm) * Known moderate-severe polyhydramnios (AFI ≥30 at time of delivery) * Concern regarding fetal status during antenatal testing: At provider discretion, but includes fetal decelerations, biophysical profile ≤6/10 * Vaginal bleeding or concern for/known abruption prior to Foley placement * Chorioamnionitis * Any fetal growth restriction * Preeclampsia with severe features * Severe chronic hypertension * Type 1 diabetes or poorly controlled pre-gestational diabetes * Sickle cell disease * Major fetal anomaly * Women on therapeutic anticoagulation * Decreased fetal movement * HIV Positive (rationale: HIV positive patients require an IV medication at the start of labor induction which cannot be given as an outpatient. There is universal testing of HIV in the 3rd trimester to verify this

Design outcomes

Primary

MeasureTime frameDescription
Incidence of Cesarean DeliveryAt deliveryIncidence of cesarean delivery in women randomized to outpatient cervical ripening with the Foley catheter compared to women undergoing routine inpatient cervical ripening

Secondary

MeasureTime frameDescription
Maternal morbidity incidenceWithin 6 weeks of deliveryDefined as a composite endpoint consisting of at least one occurrence of the following outcomes: postpartum hemorrhage, blood transfusion, endometritis, wound/laceration breakdown or infection, venous thromboembolis and hospital readmission with 6 weeks
Maternal patient satisfaction as measured by the Hollins Martin Birth Satisfaction scale-Revised (BSS-R)From time of delivery to discharge from hospital, up to 6 weeks from deliveryPatient satisfaction as measured by the BSS-R with a possible score of 0-40 with 0 equaling the least birth satisfaction
Neonatal morbidity incidenceWithin 6 weeks of deliveryDefined as a composite endpoint consisting of at least one incidence of the following outcomes: acidemia, respiratory failure/insufficiency, hypoxic-ischemic encephalopathy, treatment for hypoglycemia or suspected sepsis
Maternal patient perception of controlFrom time of delivery to discharge from hospital, up to 6 weeks from deliveryMeasured by the Labour Agentry Scale (LAS), as 29-item questionnaire with higher values reflecting a higher measure of perceived personal control
Maternal overall length of stayFrom date of delivery to date of discharge from hospital postpartum, up to 6 weeks from deliveryMeasured by hours from admission to postpartum discharge
Maternal postpartum length of stayFrom date of delivery to date of discharge from hospital postpartum, up to 6 weeks from deliveryMeasured by hours from delivery to postpartum discharge
Neonatal length of stayFrom date of delivery to date of discharge from hospital postpartum, up to 6 weeks from deliveryLength of stay from birth to discharge, measured in hours
NICU admissionFrom date of delivery to date of discharge from hospital postpartum, up to 6 weeks from deliveryAdmission to neonatal intensive care unit
NICU stay greater than 48 hoursFrom date of delivery to date of discharge from hospital postpartum, up to 6 weeks from deliveryAdmission to the NICU for more than 48 hours
Perceived stress scale-10 questionsFrom time of delivery to discharge from hospital, up to 6 weeks from deliveryA validated 10 question scale evaluating perceived stress

Countries

United States

Contacts

CONTACTLisa Levine, MD, MSCE
lisa.levine@pennmedicine.upenn.edu215-283-7373
CONTACTMeaghan McCabe, MPH
meaghan.mccabe@pennmedicine.upenn.edu215-283-7373
PRINCIPAL_INVESTIGATORLisa Levine, MD, MSCE

University of Pennsylvaina

PRINCIPAL_INVESTIGATORAlison Cahill, MD, MSCI

University of Texas at Austin

Outcome results

None listed

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