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Fecal Microbiota Transplantation for Type 2 Diabetes Mellitus and Hashimoto's Thyroiditis

23. juli 2026 opdateret af: Shen Xujun

Efficacy of Fecal Microbiota Transplantation in Improving Metabolic Parameters and Immune Dysregulation in Patients With Concurrent Type 2 Diabetes Mellitus and Autoimmune Thyroid Disease.

The goal of this clinical trial is to learn if fecal microbiota transplantation (FMT) can improve metabolic control and immune function in adults with both type 2 diabetes and Hashimoto's thyroiditis (an autoimmune thyroid disease). It will also learn about the safety of FMT in these patients. The main questions it aims to answer are:

Can FMT lower blood sugar levels (HbA1c, fasting blood glucose, and 2-hour post-meal blood glucose) in participants with type 2 diabetes? Can FMT reduce thyroid autoantibody levels (TPOAb and TgAb) in participants with Hashimoto's thyroiditis? This is a single-arm study, meaning all participants will receive the same FMT treatment. Researchers will compare each participant's results before and after the intervention to see if FMT has an effect.

Participants will:

Complete baseline tests including blood work and stool sample collection during the 2-week screening period Take 40 oral FMT capsules by mouth over about 1.5 hours under medical supervision at the start of the study Keep taking their usual diabetes and thyroid medications at the same dose throughout the study, unless their doctor says otherwise Return for follow-up visits and tests at 12 weeks and 24 weeks after the FMT treatment

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

38

Fase

  • Fase 4

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Undersøgelse Kontakt Backup

  • Navn: Ling Ling Zhang
  • Telefonnummer: +8619706851581

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

  1. Age ≥ 18 and ≤ 65 years old.
  2. Diagnosed with type 2 diabetes mellitus (T2DM).
  3. Positive for thyroid peroxidase antibody (TPOAb) and thyroglobulin antibody (TgAb); thyroid ultrasonography indicates diffuse thyroid lesions.
  4. The regimens of hypoglycemic drugs and thyroid-related basic treatments (including drug types and dosages) have remained stable for at least 3 months before enrollment.

Exclusion Criteria:

  1. Subjects who have used antibiotics, probiotics or prebiotics within 4 weeks prior to screening.
  2. Patients complicated with severe gastrointestinal diseases (e.g., inflammatory bowel disease, active gastrointestinal bleeding).
  3. Patients receiving specialized treatment for hyperthyroidism (Graves' disease) or with a history of thyroid malignancy.
  4. Patients with severe immunosuppression (neutrophil count < 1500/mm³, lymphocyte count < 500/mm³).
  5. Patients with active severe gastrointestinal bleeding, intestinal perforation, or severe intestinal barrier/mucosal injury.
  6. Patients with intestinal mucosal injury of unknown etiology.
  7. Patients diagnosed with fulminant colitis or toxic megacolon.
  8. Patients with active extraintestinal infection requiring treatment with broad-spectrum antibiotics.
  9. Severe malnutrition (body mass index < 15 kg/m²) or severe hypoalbuminemia (serum albumin < 25 g/L).
  10. Congenital or acquired immunodeficiency diseases.
  11. Patients who have recently received high-risk immunosuppressants or cytotoxic drugs (e.g., rituximab, doxorubicin), or medium-to-high dose glucocorticoids (e.g., prednisone >= 20 mg per day for more than 4 consecutive weeks).
  12. Patients complicated with other autoimmune diseases.
  13. Patients with severe hepatic or renal insufficiency.
  14. Patients with malignant tumors.
  15. Patients with known allergy to capsule ingredients.
  16. Pregnant or lactating females.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Fecal microbiota transplantation group
All subjects received a single standardized fecal microbiota transplantation (FMT) intervention at Week 0 under unified protocols. After fasting, each subject took 40 standardized fecal microbiota suspension capsules in divided doses within 1.5 hours (2-3 capsules each time, swallowed with warm water).

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
Glycated Hemoglobin(HbA1c)
Tidsramme: baseline,week 12,week 24
baseline,week 12,week 24
Fasting blood glucose
Tidsramme: baseline,week12,week24
baseline,week12,week24
2-hour postprandial blood glucose
Tidsramme: baseline,week12,week24
baseline,week12,week24
Thyroid Peroxidase Antibody(TPOAb)
Tidsramme: baseline,week12,week24
baseline,week12,week24
Thyroglobulin Antibody(TgAb)
Tidsramme: baseline,week12,week24
baseline,week12,week24

Sekundære resultatmål

Resultatmål
Tidsramme
Recovery of characteristic gut microbiota
Tidsramme: baseline,week 12,week 24
baseline,week 12,week 24
Triglycerides
Tidsramme: baseline,week12,week24
baseline,week12,week24
Total cholesterol
Tidsramme: baseline,week12,week24
baseline,week12,week24
Uric acid
Tidsramme: baseline,week12,week24
baseline,week12,week24
Fasting Insulin
Tidsramme: baseline,week12,week24
baseline,week12,week24
Body weight
Tidsramme: baseline,week12,week24
baseline,week12,week24

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

1. august 2026

Primær færdiggørelse (Anslået)

1. december 2027

Studieafslutning (Anslået)

1. december 2027

Datoer for studieregistrering

Først indsendt

18. juli 2026

Først indsendt, der opfyldte QC-kriterier

23. juli 2026

Først opslået (Faktiske)

29. juli 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

29. juli 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

23. juli 2026

Sidst verificeret

1. juli 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • Zhelvyi Ethics【2026】No.12

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

IPD-planbeskrivelse

The shared individual participant data include baseline demographic data, laboratory indicators, primary and secondary outcome measures collected at Week 12 and Week 24, adverse event records. Raw data will be de-identified to remove all personal identifiable information before sharing.

IPD-delingstidsramme

Start date: After study completion and publication (Week 24 follow-up finished and manuscript published) End date: 5 years after publication

IPD-delingsadgangskriterier

Only qualified clinical research investigators may submit formal written data access applications to the principal investigator.

Approved applicants can obtain de-identified individual participant data, study protocol, statistical analysis plan and informed consent form.

Data will be delivered via encrypted electronic files after signing a data use agreement.

Data application requests shall be submitted by email to the principal investigator; there is no dedicated public web portal for online application.

All data access inquiries and completed application documents should be sent to the principal investigator via official email.

IPD-deling Understøttende informationstype

  • STUDY_PROTOCOL
  • SAP
  • ICF

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