Safety and Efficacy of Fecal Microbiota Transplantation on Cognitive Function in T1DM

NCT ID: NCT06496412

Last Updated: 2024-07-11

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-04-20

Study Completion Date

2027-12-30

Brief Summary

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This study is a prospective, single-center, parallel-design,1:1 randomized controlled trial with triple blinding. It aims to investigate the effects of fecal microbiota transplantation (FMT) on cognitive function in patients with long-term type 1 diabetes (T1D), as well as its effects on other complications, glycemic control, insulin dosage, insulin resistance, peripheral blood immune cells, serum metabolites, and safety. This study is divided into two phases for recruiting participants. The first phase recruits 10 individuals (experimental group: 5, control group: 5), while the second phase recruits 30 individuals (experimental group: 15, control group: 15).The main research objectives are as follows:

1. To observe the difference in cognitive function between the FMT group and the placebo group, with the indicators including cognitive scale scores, changes in brain MRI imaging indicators and brain age at week 24 compared to baseline.
2. To observe the difference in other complications between the FMT group and the placebo group, with the indicators including changes in urinary albumin/creatinine ratio, fundus photography, carotid intima-media thickness, and arterial pulse wave velocity at week 24 compared to baseline.
3. To observe the difference in glycemic control, insulin dosage, insulin resistance, peripheral blood immune cells, gut microbiota, and serum metabolites between the FMT group and the placebo group.
4. To evaluate the safety of FMT.

Detailed Description

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Conditions

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Type 1 Diabetes

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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fecal microbiota transplantation

On the basis of baseline medication, high-dose fecal microbiota transplantation (FMT) will be administered, with subjects taking 50 fecal microbiota capsules. Subsequently, maintenance doses will be administered at week 2, 4, 8, 12, and 20, with 10 capsules taken each time. Fasting is required 4 hours before and 1 hour after capsule ingestion, and subjects are instructed to maintain a stable diet and physical activity pattern throughout the 24-week study period. Capsules will be transported on ice and warmed for 10 minutes at 37°C before FMT administration.

Group Type EXPERIMENTAL

fecal microbiota transplantation

Intervention Type DRUG

Take fecal microbiota capsules.

placebo

Different from the experimental group, the control group will receive placebo capsules that have the same appearance as the fecal microbiota capsules, while other procedures remain the same as those in the experimental group.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Take placebo capsules.

Interventions

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fecal microbiota transplantation

Take fecal microbiota capsules.

Intervention Type DRUG

Placebo

Take placebo capsules.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. According to the definition of type 1 diabetes mellitus (T1DM) by the World Health Organization (WHO), the diagnostic criteria are as follows: (i) clinically diagnosed as T1D by endocrinologists; (ii) insulin dependence from disease onset and diabetic ketoacidosis (DKA)/diabetic ketosis (DK) at diagnosis; (iii) positive for at least one of islet autoantibodies for glutamic acid decarboxylase antibody \[GADA\], insulinoma-associated protein 2 antibody \[IA-2A\], and zinc transporter 8 antibody \[ZnT8A\]; or negative for all three islet autoantibodies, but diagnosed before age 30.
2. Age between 18 and 60 years, with a diabetes duration of 10 years or more
3. Glycated hemoglobin levels ranging from 6.5% to 9.0%.

Exclusion Criteria

1. Use of any hypoglycemic medication other than insulin in the two months prior to randomization.
2. Participation in other clinical trials within the two months prior to randomization.
3. Use of antimicrobial drugs, probiotics, intestinal microbiota regulators, and other drugs with significant impact on gut microbiota within the two months prior to randomization.
4. Gastrointestinal diseases: celiac disease, irritable bowel syndrome, Crohn's disease, etc.
5. Severe infections, severe heart, liver, kidney diseases, tumors, and other inflammatory or autoimmune diseases.
6. Pregnant or lactating women, or women planning pregnancy during the study period.
7. Severe mental health disorders such as schizophrenia, major depression, bipolar disorder, alcohol or substance abuse, etc.
8. Neurological disorders such as Parkinson's disease, progressive supranuclear palsy, epilepsy, multiple sclerosis, traumatic brain injury, stroke, etc.
9. Post-implantation of metal materials or contraindications for other MRI examinations.
10. Severe episodes of unconscious hypoglycemia within the past two months.
Minimum Eligible Age

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Second Xiangya Hospital of Central South University

OTHER

Sponsor Role lead

Responsible Party

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Xia Li

Professor, Department of Endocrinology, Institute of of Metabolism and Endocrinology, National Clinical Research Center for Metabolic Diseases, Second Xiangya Hospital of Central South University

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Xia Li, MD/PHD

Role: PRINCIPAL_INVESTIGATOR

The Second Xiangya Hospital, Central South University

Locations

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Institute of Metabolism and Endocrinology, Second Xiangya Hospital, Central South University

Changsha, Hunan, China

Site Status RECRUITING

Countries

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China

Central Contacts

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Xia Li, MD/PHD

Role: CONTACT

+86 13974885753

Facility Contacts

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Xia Li, MD/PHD

Role: primary

+86 13974885753

Other Identifiers

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T1D cognitive impairment FMT

Identifier Type: -

Identifier Source: org_study_id

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