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Fecal Microbiota Transplantation for Obese Women With Polyendocrine Metabolic Ovarian Syndrome

NCT07746635 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 161

Last updated 2026-08-12

No results posted yet for this study

Summary

This prospective, two-stage clinical trial aims to evaluate the safety, preliminary efficacy, and reproductive outcomes of oral Fecal Microbiota Transplantation (FMT) freeze-dried capsules in overweight and obese patients with Polyendocrine Metabolic Ovarian Syndrome (PMOS) undergoing Frozen-Thawed Embryo Transfer (FET).The study is implemented in two sequential phases:

Phase Ⅰ (Pilot Exploration): A prospective, open-label, single-arm exploratory study in an initial evaluable cohort (n=11) to evaluate preliminary safety, dynamic gut microbiota colonization, endocrine/metabolic parameters, and pregnancy outcomes following FET.

Phase Ⅱ (Confirmatory RCT): A planned multicenter, prospective, randomized controlled trial (RCT) designed to validate the clinical efficacy and underlying mechanisms of oral FMT capsules compared with control interventions, based on findings established in Phase Ⅰ.

Conditions

  • PCOS (Polycystic Ovary Syndrome)

Interventions

BIOLOGICAL

oral Fecal Microbiota Transplantation

Participants will receive standardized oral FMT freeze-dried powder capsules without antibiotic pretreatment. The capsules are derived from strictly screened, traceable healthy donors from a standardized Microbiota Biobank. Dosage and Regimen: Oral administration of 5 capsules twice daily on an empty stomach for 6 consecutive days, which constitutes one course. The complete regimen consists of 3 identical courses administered at Week 0, Week 4, and Week 8. Background: Standardized lifestyle and dietary guidance will be provided throughout the study.

OTHER

Placebo

Participants will receive visually and olfactory-matched placebo capsules without antibiotic pretreatment. Dosage and Regimen:Oral administration of 5 capsules twice daily on an empty stomach for 6 consecutive days per course. The complete regimen consists of 3 identical courses administered at Week 0, Week 4, and Week 8, exactly mirroring the experimental arm. Background: Standardized lifestyle and dietary guidance will be provided throughout the study.

Sponsors & Collaborators

  • Shanghai Changzheng Hospital

    lead OTHER

Principal Investigators

  • Ningxia Sun, MD-PhD · Shanghai Changzheng Hospital

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
20 Years
Max Age
40 Years
Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-02-21
Primary Completion
2028-08-31
Completion
2028-08-31

Countries

  • China

Study Locations

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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 NCT07746635 on ClinicalTrials.gov