NCT05333731

Brief Summary

This study is a multi-center, prospective, observational clinical trial study. 528 full-term pregnant women will be enrolled as subjects, and the ratio of eligible subjects in the two groups is 1:1. In the cesarean section group, full term pregnant women with prelabor rupture of membrane (PROM) who are willing to try the trial of labor after cesarean (TOLAC) and in accordance with the criteria according to the 2016 China vaginal birth after cesarean (VBAC) clinical management guidelines will be enrolled and recorded by our homemade registration form of TOLAC. In the non-cesarean section group, pregnant women after 37 weeks of gestation with PROM but without vaginal labor contraindications will be enrolled. Whether in the cesarean section group or non-cesarean section group, if spontaneous labor does not occur, and they all will be induced by oxytocin. After 24 hours, their final delivery mode will be recorded. In the following 42 days postpartum, their complications and the neonatal outcome will be followed up.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
528

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Mar 2022

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 8, 2022

Completed
2 months until next milestone

Study Start

First participant enrolled

March 30, 2022

Completed
20 days until next milestone

First Posted

Study publicly available on registry

April 19, 2022

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 30, 2024

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2025

Completed
Last Updated

April 19, 2022

Status Verified

April 1, 2022

Enrollment Period

2.8 years

First QC Date

February 8, 2022

Last Update Submit

April 17, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • Vignial birth rate

    After the treatment of oxytocin induction for up tp 24 hours, the mode of delivery will be konwn and recorded.

    24 hours

Study Arms (2)

Cesarean section group

In the cesarean section group, all the pregnant women had only one prior cesarean section.

Drug: Oxytocin

Non-cesarean section group

In the non-cesarean section group, all the pregnant women are primipara, and never had a cesarean section.

Drug: Oxytocin

Interventions

In the two groups, if spontaneous labor does not occur after PROM, they all receive the oxytocin for up to 24h.

Cesarean section groupNon-cesarean section group

Eligibility Criteria

Age20 Years - 40 Years
Sexfemale
Age GroupsAdult (18-64)
Sampling MethodProbability Sample
Study Population

In the cesarean section group, the extra inclusion criteria includes: Only one prior low transverse uterine incision; Extra exclusion criteria: 1. With mutiple history of c esction; 2. Prior extensive transfundal uterine surgery, such as for fetal surgery, myomectomy, or uterine reconstruction; Prior classical vertical uterine incision, or an inverted "T" or "J" incision; 3. Short interpregnancy interval; 4. Prior uterine rupture or dehiscence, or cesarean scar pregnancy; 5. Evaluated fetal birth weight\> 4000 g. In the non-cesarean section group, the extra criteria should include: nulliparous

You may qualify if:

  • Volunteers sign the informed consent;
  • Age: 20-40 years;
  • Singleton, a cephalic presentation;
  • No contradiction to vaginal delivery;
  • gestation: 37\~42 weeks;
  • With prelabor rupture of membrane.

You may not qualify if:

  • Konwn contraindication to vaginal delivery or severe complications;
  • Multiple gestation;
  • Uterine malformation;
  • Severe psychiatric disorder;
  • Without family's support.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

First Affiliated Hospital of Nanjing Medical University

Nanjing, Jiangsu, China

RECRUITING

Related Publications (4)

  • Prelabor Rupture of Membranes: ACOG Practice Bulletin, Number 217. Obstet Gynecol. 2020 Mar;135(3):e80-e97. doi: 10.1097/AOG.0000000000003700.

    PMID: 32080050BACKGROUND
  • Bellussi F, Livi A, Diglio J, Lenzi J, Magnani L, Pilu G. Timing of induction for term prelabor rupture of membranes and intravenous antibiotics. Am J Obstet Gynecol MFM. 2021 Jan;3(1):100245. doi: 10.1016/j.ajogmf.2020.100245. Epub 2020 Oct 6.

    PMID: 33451610BACKGROUND
  • Fishel Bartal M, Sibai BM, Ilan H, Fried M, Rahav R, Alexandroni H, Schushan Eisan I, Hendler I. Trial of labor after cesarean (TOLAC) in women with premature rupture of membranes. J Matern Fetal Neonatal Med. 2020 Sep;33(17):2976-2982. doi: 10.1080/14767058.2019.1566312. Epub 2019 Jan 17.

    PMID: 30652525BACKGROUND
  • 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.

    PMID: 28050900BACKGROUND

MeSH Terms

Conditions

Fetal Membranes, Premature Rupture

Interventions

Oxytocin

Condition Hierarchy (Ancestors)

Obstetric Labor ComplicationsPregnancy ComplicationsFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital Diseases

Intervention Hierarchy (Ancestors)

Pituitary Hormones, PosteriorPituitary HormonesPeptide HormonesHormonesHormones, Hormone Substitutes, and Hormone AntagonistsPeptidesAmino Acids, Peptides, and Proteins

Central Study Contacts

Jiang Ziyan, Ph.D

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 8, 2022

First Posted

April 19, 2022

Study Start

March 30, 2022

Primary Completion

December 30, 2024

Study Completion

June 30, 2025

Last Updated

April 19, 2022

Record last verified: 2022-04

Locations