Clinical trial Recruiting at 1 site Interventional Ages 18 to 50 Women only

Using a new gel to prevent adhesions after first-trimester miscarriage treatment

Official title: The Efficacy and Safety of a New Cross-linked Hyaluronan Gel to Prevent Adhesion After Ultrasound-guided Manual Vacuum Aspiration (USG-MVA): A Prospective Randomized Controlled Trial

Run by Chinese University of Hong Kong · NCT05360186 · Data updated 2026-11-12

This study is testing a new gel to see if it can help prevent scar tissue from forming in the uterus after treatment for a miscarriage in the first trimester.

More Miscarriage in First Trimester trials

Quick facts

Study typeInterventional
Ages18 Years to 50 Years
SexWomen only
Enrollment150 (estimated)
SponsorChinese University of Hong Kong
Academic / other
Locations1 site (Hong Kong)
StatusRecruiting
StartedJune 14, 2022
Main results expectedMay 14, 2026
Study endsMay 15, 2026
Registry record updatedAugust 13, 2025
Trial IDNCT05360186 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are women aged 18 and older who are undergoing surgical evacuation for first-trimester miscarriage and have no history of intrauterine adhesions.

Probably not a fit

Patients with a history of intrauterine adhesions, previous surgical procedures affecting the uterus, or certain medical conditions may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial evaluates the effectiveness of a new cross-linked hyaluronan gel in preventing intrauterine adhesions (IUA) following surgical evacuation for first-trimester miscarriage. The study is a prospective, randomized controlled trial that compares the incidence of IUA in patients treated with the gel versus a control group. It also assesses the severity of adhesions, rates of complications, and subsequent reproductive outcomes. The trial aims to provide more data on the gel's efficacy in this specific patient population.

Why it matters

Potential benefit: If successful, this gel could significantly reduce the risk of intrauterine adhesions, improving reproductive outcomes for women after miscarriage.

How similar studies have gone: Previous studies have shown success with similar approaches, indicating a potential for this gel to effectively reduce intrauterine adhesions.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Women 18 years old or above
* No previous history of IUA/ Asherman's syndrome
* No previous surgical history of EVA or dilatation or curettage or surgical termination of pregnancy or caesarean section
* No previous history of therapeutic hysteroscopic surgeries
* Voluntary informed consent and understanding of study

Exclusion Criteria:

* previous therapeutic hysteroscopic procedures (e.g. endometrial ablation, removal of fibroids or polyps, surgical correction of congenital uterine anomalies or adhesiolysis)
* suspicion of molar pregnancy
* genital tract malformation
* suspicion of active infection or genital tract malignancy or genital tuberculosis
* abnormal blood coagulation
* inability to tolerate pelvic examination known
* suspected intolerance of hypersensitivity to NCH gel or its derivatives
* patient refusal

Where it's running

  • The Chinese University of Hong Kong
    Hong Kong, Hong Kong
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.