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New Cross-linked Hyaluronan Gel to Prevent Adhesion After USG-MVA: RCT

Not Applicable
Recruiting
Conditions
First Trimester Abortion
Miscarriage With Afibrinogenemia
Surgical Abortion
Interventions
Device: MateRegen® gel (BioRegen)
Registration Number
NCT05360186
Lead Sponsor
Chinese University of Hong Kong
Brief Summary

The objective of this prospective, randomized controlled study was to evaluate the effectiveness of this NCH gel in the prevention of IUA development as assessed by hysteroscopy after USG-MVA, in the treatment for first-trimester miscarriage.

* To study the severity and extent of the IUA as assessed by the AFS and ESGE adhesion score in both groups of patients.

* To examine the rate of complications or side effects with the NCH gel.

* To assess the subsequent menstrual history and reproductive outcome in both groups of patients.

Detailed Description

There is limited data to evaluate the incidence of IUA after using this NCH gel in patients undergoing surgical evacuation via USG-MVA for the treatment of first-trimester miscarriage. Previous RCT showed a significant reduction in IUA with the use of NCH gel, with IUA detected in only 9.5% of patients with NCH gel applied compared to 24.1% in the control group. However, the group did not involve patients undergoing surgical evacuation by USG-MVA.

Therefore, the objective of this prospective, randomized controlled study was to evaluate the effectiveness of this NCH gel in the prevention of IUA development as assessed by hysteroscopy after USG-MVA, in the treatment of first-trimester miscarriage.

Recruitment & Eligibility

Status
RECRUITING
Sex
Female
Target Recruitment
150
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
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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
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Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Intervention group (Group A): NCH gel after USG-MVAMateRegen® gel (BioRegen)In the intervention group (Group A), a 15 cm sterile delivery cannula will be inserted through the internal os and a syringe of NCH gel (5ml) will be applied to the uterine cavity after cleansing the cervix with an antiseptic solution.
Primary Outcome Measures
NameTimeMethod
Incidence of IUA8-12 weeks after MVA

To determine the incidence of IUA or after USG-MVA for the treatment of first-trimester miscarriage in both intervention and control groups.

Secondary Outcome Measures
NameTimeMethod
Subsequent reproductive outcome8-12 weeks after MVA

To assess the rate of pregnancy in both groups of patients

Severity and extent of the intrauterine adhesions as assessed by the AFS adhesion score8-12 weeks after MVA

To study the severity and extent of the intrauterine adhesions as assessed by the AFS adhesion score in both groups of patients.

The American Fertility Society's (AFS) classification of intrauterine adhesions:

Stage I (mild) with score 1-4, Stage II (moderate) with score 5-8, Stage III (severe) with score 9-12

Severity and extent of the intrauterine adhesions as assessed by the ESGE adhesion score8-12 weeks after MVA

To study the severity and extent of the intrauterine adhesions as assessed by the European Society of Gynaecological Endoscopy (ESGE) adhesion score in both groups of patients. It includes grades I and II as mild adhesion, grade III as moderate adhesion, grades IV and V as severe adhesion

Complications or side effects with the NCH gel.8-12 weeks after MVA

To examine the rate of complications or side effects with the NCH gel.

Subsequent menstrual frequency8-12 weeks after MVA

To assess the subsequent menstrual frequency in both groups of patients. Frequency - average 28 days \<24 days Frequent, \>38 days Infrequent Frequency - average 28 days \<24 days Frequent, \>38 days Infrequent

Trial Locations

Locations (1)

The Chinese University of Hong Kong

🇭🇰

Hong Kong, Hong Kong

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