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Intrauterine Injection of Type III Collage in FST of EC/AEH

NCT07377734 · Status: RECRUITING · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 30

Last updated 2026-03-30

No results posted yet for this study

Summary

The goal of this clinical trial is to learn if intrauterine injection of "Recombinant Humanized Type III Collagen Lyophilized Fibers" works to treat endometrial cancer or atypical hyperplasia in patients seeking fertility-preserving treatment. It will also learn about the safety of this intervention.The main questions it aims to answer are:

1. Does the combination of recombinant humanized type III collagen and progestin significantly increase the tumor remission rate at 6 months compared to progestin alone?
2. What medical problems do participants have when receiving this treatment (e.g., allergic reactions, abnormal inflammatory markers, or histocompatibility issues)? Researchers will compare "recombinant humanized type III collagen plus progestin (experimental group)" to "high-dose progestin alone (control group)" to see if the combination therapy is more effective for fertility preservation.

Participants will:

1. Take high-dose progestin (such as Medroxyprogesterone Acetate or Megestrol Acetate) orally every day.
2. If assigned to the experimental group, receive one intrauterine submucosal injection of collagen via hysteroscopy at months 0, 1, and 2, for a total of 3 injections.
3. Visit the clinic once every 3 months for treatment evaluation and follow-up, which includes hysteroscopic endometrial biopsy, imaging (such as transvaginal ultrasound), and safety tests for relevant biochemical indicators.

Conditions

Interventions

DRUG

Recombinant Humanized Type III Collagen Lyophilized Fibers + High-dose Progestin

Participants in this group will receive a combination therapy. They will take oral high-dose progestin (Medroxyprogesterone Acetate 250mg-500mg/d or Megestrol Acetate 160mg-320mg/d) daily. Additionally, they will receive three intrauterine submucosal injections of Recombinant Humanized Type III Collagen Lyophilized Fibers (50mg per injection) via hysteroscopy at months 0, 1, and 2. Each injection consists of 5ml solution (10mg/ml). The injection is administered at specific sites in the uterine cavity, including the anterior, posterior, left, right, and fundal walls, or surrounding the suspected lesion area.

DRUG

High-dose Progestin

Participants in the control group will receive standard-of-care treatment with oral high-dose progestin alone. The dosage will be Medroxyprogesterone Acetate 250mg-500mg/day or Megestrol Acetate 160mg-320mg/day, taken daily throughout the treatment period

Sponsors & Collaborators

  • Wang Jianliu

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
45 Years
Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-01-30
Primary Completion
2027-12-31
Completion
2029-12-30

Countries

  • China

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07377734 on ClinicalTrials.gov