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.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 50 Years |
| Sex | Women only |
| Enrollment | 150 (estimated) |
| Sponsor | Chinese University of Hong Kong Academic / other |
| Locations | 1 site (Hong Kong) |
| Status | Recruiting |
| Started | June 14, 2022 |
| Main results expected | May 14, 2026 |
| Study ends | May 15, 2026 |
| Registry record updated | August 13, 2025 |
| Trial ID | NCT05360186 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
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The Chinese University of Hong Kong
Hong Kong, Hong Kong Recruiting
Study contacts
- Study coordinator: Elaine NG
- Email: elaineng@cuhk.edu.hk
- Phone: 35052745
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.