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Clinical Trial Details — Status: Terminated

Administrative data

NCT number NCT03769610
Other study ID # 2383
Secondary ID
Status Terminated
Phase N/A
First received
Last updated
Start date January 4, 2017
Est. completion date April 1, 2021

Study information

Verified date April 2021
Source LifeBridge Health
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Induction of labor is a process of stimulating uterine contractions before the onset of labor, with a goal of achieving vaginal birth. The cervix (the lower part of the uterus that connects to the vagina) must dilate (open) in order to allow passage of the baby into the vagina and through the birth canal. A process called "cervical ripening" is often performed prior to labor induction to prepare the cervix for labor and therefore shorten the length of the labor. There are various pharmacologic and mechanical methods of cervical ripening that result in the physical softening and distensibility of the cervix. Mechanical dilation with a small balloon (i.e. a Foley catheter) placed in the cervix is one of the most commonly used, safe, inexpensive, and effective methods to achieve cervical ripening. In most hospitals, cervical ripening is performed in the hospitals; however, some hospitals allow women to undergo cervical ripening at home with a transcervical Foley catheter. The goal of this study is to compare the use of a Foley catheter for cervical ripening in the inpatient (in-hospital) and outpatient (at home) settings. We anticipate that outpatient use will lead to a shorter amount of time that a woman spends in the hospital, decreased cost, and good patient satisfaction.


Description:

From 1990 to 2010, the rates of induction of labor increased from 9.6% to 23.8%(1). Recent data from 2014 reports a rate of 23.2%(2). Labor induction may be medically indicated, in cases in which the risk of continuing pregnancy is greater than delivery, or in some cases electively after 39 weeks of gestation. Prior to starting an induction of labor, a digital exam is performed to determine the status of the cervix in terms of its dilatation, effacement, position, softness, and fetal station. If the cervical status is considered favorable for labor, then generally oxytocin is started to induce uterine contractions. If the cervix is not considered favorable, a method of cervical ripening is employed to induce physical changes in the cervix that make it more favorable for labor. This process involves inflammatory infiltration and release of metalloproteases that degrade collagen and result in cervical remodeling(3). The primary benefit of cervical ripening is reducing the length of labor; however, some studies have suggested that it may lower the rate of cesarean section(4,5). The Bishop score (see table 1) is used as a scoring tool to determine the status of the cervix(6). Most studies define a score of 6 or less as an unfavorable cervix, while a score of greater than 8 is favorable, and has a similar probability of vaginal delivery to spontaneous labor(7). Commonly used methods for cervical ripening include pharmacologic forms such as synthetic prostaglandin E1 (PGE1, i.e. misoprostol) and prostaglandin E2 (PGE2, i.e. dinoprostone), or mechanical ripening with balloon (i.e. Foley) catheters. Quality improvement, increasing efficiency, and decreasing cost continue to be challenges for individual hospitals and the entire health care system. Induction of labor, especially with an unfavorable cervix, is associated with longer lengths of stay for patients, which results in increased cost(8). Foley catheters are a safe, inexpensive and effective option for cervical ripening. A study by Sciscione et al in 2001 compared Foley bulb use in inpatient versus outpatient settings and found the outpatient use to be as effective for cervical ripening. The primary objective of this study was to compare efficacy of these two approaches and the outcomes were similar. There were no cases of endomyometritis or chorioamnionitis(9). While they did report a shorter amount of time in the hospital with outpatient management, this was not a primary outcome of the study and they did not compare costs. Recently there has been an increased focus on the costs of medical care and patient satisfaction. Consequently, these are increasingly important outcomes that research needs to focus on. It is our hope that the findings of our study will support the use of outpatient pre-induction of labor cervical ripening and result in a more efficient use of resources and improved patient satisfaction. The purpose of this study is to compare the use of a Foley catheter for cervical ripening in the inpatient and outpatient setting, in order to evaluate the difference in the amount of time spent on labor and delivery during induction of labor, as well as the difference in costs. An important secondary outcome we plan to evaluate as well is patient satisfaction. This will be a randomized controlled trial, with the study population being pregnant women at ≥ 37 weeks of gestation undergoing induction of labor. The projected time-frame will be from October 2016 to June 2018. The expected outcome is that outpatient cervical ripening with Foley catheter use will result in shorter lengths of stay on labor and delivery and less cost than inpatient Foley catheter use in patients undergoing induction of labor. Additionally, we anticipate greater patient satisfaction with outpatient management.


Recruitment information / eligibility

Status Terminated
Enrollment 30
Est. completion date April 1, 2021
Est. primary completion date April 1, 2021
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Female
Age group 14 Years to 45 Years
Eligibility Inclusion Criteria: - Pregnancies at least 37 weeks' gestation, undergoing induction of labor, with an unfavorable cervix, defined as a Bishop score = 6 - The fetus must be in the cephalic presentation - Indications for induction of labor include, but are not limited to, the following: - Elective induction of labor at 39 weeks' gestation - Intrauterine growth restriction - Chronic hypertension - Diabetes - Gestational diabetes - Prior stillbirth - Other medical indications for induction of labor, as deemed appropriate by the obstetric provider, such as Systemic Lupus Erythematosus, Cholestasis of Pregnancy etc. Exclusion Criteria: - Gestational hypertension - Preeclampsia - Non-reassuring fetal testing - Multi-fetal gestation - Oligohydramnios - Fetal anomaly - Less than 37 weeks - Bishop score > 6 - Ruptured membranes - Contraindication to vaginal delivery including: active Herpes lesion, HIV VL >1000 copies/mL, placenta previa, vasa previa, breech presentation, prior classical cesarean section or transfundal myomectomy - Poor access to telephone or transportation - Latex allergy - Any other condition for which the managing physician or investigator deem outpatient management inappropriate. - Currently participating in another clinical trial

Study Design


Related Conditions & MeSH terms


Intervention

Other:
Inpatient Foley catheter

Outpatient Foley catheter


Locations

Country Name City State
United States Sinai Hospital of Baltimore Baltimore Maryland
United States Thomas Jefferson University Philadelphia Pennsylvania

Sponsors (2)

Lead Sponsor Collaborator
LifeBridge Health Thomas Jefferson University

Country where clinical trial is conducted

United States, 

References & Publications (9)

ACOG Practice Bulletin No. 107: Induction of labor. Obstet Gynecol. 2009 Aug;114(2 Pt 1):386-397. doi: 10.1097/AOG.0b013e3181b48ef5. Review. — View Citation

BISHOP EH. PELVIC SCORING FOR ELECTIVE INDUCTION. Obstet Gynecol. 1964 Aug;24:266-8. — View Citation

Hamilton BE, Martin JA, Osterman MJ, Curtin SC, Matthews TJ. Births: Final Data for 2014. Natl Vital Stat Rep. 2015 Dec;64(12):1-64. — View Citation

Jozwiak M, Bloemenkamp KW, Kelly AJ, Mol BW, Irion O, Boulvain M. Mechanical methods for induction of labour. Cochrane Database Syst Rev. 2012 Mar 14;(3):CD001233. doi: 10.1002/14651858.CD001233.pub2. Review. — View Citation

Martin JA, Hamilton BE, Osterman MJ, Curtin SC, Matthews TJ. Births: final data for 2013. Natl Vital Stat Rep. 2015 Jan 15;64(1):1-65. — View Citation

Sciscione AC, Muench M, Pollock M, Jenkins TM, Tildon-Burton J, Colmorgen GH. Transcervical Foley catheter for preinduction cervical ripening in an outpatient versus inpatient setting. Obstet Gynecol. 2001 Nov;98(5 Pt 1):751-6. — View Citation

Smith R. Parturition. N Engl J Med. 2007 Jan 18;356(3):271-83. Review. — View Citation

Thomas J, Fairclough A, Kavanagh J, Kelly AJ. Vaginal prostaglandin (PGE2 and PGF2a) for induction of labour at term. Cochrane Database Syst Rev. 2014 Jun 19;(6):CD003101. doi: 10.1002/14651858.CD003101.pub3. Review. — View Citation

von Gruenigen VE, Powell DM, Sorboro S, McCarroll ML, Kim U. The financial performance of labor and delivery units. Am J Obstet Gynecol. 2013 Jul;209(1):17-9. doi: 10.1016/j.ajog.2013.02.019. Epub 2013 Feb 11. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Other NICU admission Any neonatal ICU admissions (approximately 5 days)
Other Neonatal fever Any neonatal fever (approximately 5 days)
Other Total time on pitocin Time on pitocin for induction (approximately 3 days)
Other Maximum dose of pitocin Max dose (approximately 3 days)
Primary Difference in time on labor and delivery To evaluate the difference in the amount of time a patient spends on labor and delivery during induction of labor when undergoing inpatient versus outpatient transcervical Foley catheter for induction of labor. (approximately) 2 days
Primary Difference in cost To compare the difference in cost for hospitalization in patients undergoing inpatient versus outpatient cervical ripening with a transcervical Foley catheter. (approximately 5 days)
Secondary Patient satisfaction Each subject is asked to complete a survey (approximately 5 days)
Secondary Provider satisfaction After enrollment is completed, providers will be surveyed on their satisfaction (approximately 3 years)
Secondary Length of labor induction Total length of induction, including cervical ripening (approximately 3 days)
Secondary Type of delivery Vaginal delivery versus cesarean section (approximately 3 days)
Secondary Maternal blood loss Total blood loss at delivery (approximately 3 days)
Secondary Infection rates Maternal intrapartum and postpartum infections (approximately 5 days)
Secondary Apgar scores Neonatal Apgar scores at 1 and 5 minutes, and 10 minutes if reported (approximately 10 minutes)
Secondary Non-reassuring fetal heart tracings Any non-reassuring fetal monitoring during labor (approximately 3 days)
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