Comparing single-layer and double-layer uterine closure techniques during cesarean delivery

Single Versus Double-layer Closure of The Cesarean Scar In Niche Development: A Randomized Clinical Trial

Not applicable Interventional Hanoi Obstetrics and Gynecology Hospital · NCT05312775

This study is testing whether closing the uterus with one layer or two layers during a cesarean delivery can affect the chances of developing complications later on for pregnant women having their first cesarean.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment938 (estimated)
Ages18 Years to 60 Years
SexFemale
SponsorHanoi Obstetrics and Gynecology Hospital Academic / other
Locations1 site (Hanoi, Hanoi)
Trial IDNCT05312775 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to evaluate the impact of different uterine closure techniques on the formation of cesarean scar defects, known as niches, and associated gynecological complications. Pregnant women at term who are undergoing their first cesarean delivery will be randomly assigned to receive either single-layer or double-layer closure. The study will utilize a double-blinded, single-center design, with participants and sonographers unaware of the closure technique used. The outcomes will be assessed through transvaginal ultrasound and follow-up consultations.

Who should consider this trial

Good fit: Ideal candidates are pregnant women aged 18 and older, at gestational age of 37 weeks or more, who are undergoing their first cesarean delivery.

Not a fit: Patients with a history of major uterine surgery or current pregnancy complications such as abnormal placenta will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could help determine the optimal uterine closure technique to reduce complications related to cesarean deliveries.

How similar studies have performed: While there is limited literature on this specific comparison, similar studies have explored uterine closure techniques, indicating potential for meaningful insights.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Pregnant women who undergo a primary CD (planned or unplanned)
* Age ≥ 18 years.
* Gestational age ≥ 37 0/7 weeks

Exclusion Criteria:

* Previous major uterine surgery (e.g. laparoscopic or laparotomic fibroid resection, septum resection).
* Women with abnormal menstrual bleeding (e.g. cervical dysplasia, communicating hydrosalpinx, uterine anomaly or endocrine disorders disturbing ovulation, drugs, polyps, fibroids, etc.).
* Women with dysmenorrhea, dyspareunia, suprapubic pain.
* Abnormal placenta: Placenta privia, Placenta percreta… in the current pregnancy.

Where this trial is running

Hanoi, Hanoi

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Nichesingle-layer uterine closuredouble-layer uterine closureniche
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.