Oral fecal microbiota transplant for healthier aging and reduced frailty
Official title: Effect of Fecal Microbiota Transplantation on Aging and the Underlying Mechanism of Gut Microbiome Restoration: a Randomized Clinical Trial
Run by Chinese Academy of Medical Sciences, Fuwai Hospital · NCT05598112 · Data updated 2026-11-12
This trial will try oral fecal microbiota transplant capsules in people aged 70–85 to test whether changing the gut microbiome improves frailty, cognitive and physical measures of aging.
Quick facts
| Phase | Early Phase 1 |
|---|---|
| Study type | Interventional |
| Ages | 70 Years to 85 Years |
| Sex | All |
| Enrollment | 210 (estimated) |
| Sponsor | Chinese Academy of Medical Sciences, Fuwai Hospital Academic / other |
| Locations | 6 sites (Beijing, Beijing Municipality and 5 other locations) |
| Status | Recruiting |
| Started | April 24, 2023 |
| Main results expected | December 31, 2026 |
| Study ends | December 31, 2027 |
| Registry record updated | December 31, 2025 |
| Trial ID | NCT05598112 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults aged 70–85 who can give informed consent and do not have recent antibiotic/probiotic use, severe liver or kidney disease, recent major cardiac events, or major recent strokes.
✕Probably not a fit
People outside the 70–85 age range or those with serious hepatic/renal failure, recent antibiotics or probiotics use, recent major cardiac or cerebrovascular events, or current participation in other trials are unlikely to benefit or be eligible.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This is a multi-center, randomized, blinded, placebo-controlled early-phase pilot testing oral fecal microbiota transplant (FMT) capsules versus placebo in older adults. Participants aged 70–85 will receive FMT or placebo capsules and undergo repeated assessments of frailty, physical function, cognition, imaging (hippocampal volume), telomere length, inflammatory and cognitive biomarkers, and gut microbial composition and metabolites. Safety and tolerability will be monitored closely and data quality is overseen by independent statisticians and a third-party monitor. The trial is designed to explore both clinical effects and potential biological mechanisms linking the gut microbiome to aging-related measures.
Why it matters
Potential benefit: If successful, the intervention could improve frailty, physical and cognitive function, and biological markers of aging in older adults.
How similar studies have gone: Preclinical studies and some clinical work support microbiome approaches and oral FMT is established for infections, but using oral FMT specifically to target aging and frailty in humans is largely novel with limited direct human evidence.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. Age 70-85 years. 2. Patients with informed consent after thorough explanation. Exclusion Criteria: 1. Participants of other clinical trials; 2. Antibiotics or probiotics usage within last 4 weeks; 3. Severe hepatic or renal diseases ((ALT \>3 times the upper limit of normal value, or end stage renal disease on dialysis or eGFR \<30 mL/min/1.73 m2, or serum creatinine \>2.5 mg/dl \[\>221 μmol/L\]); 4. History of large atherosclerotic cerebral infarction or hemorrhagic stroke (not including lacunar infarction and transient ischemic attack \[TIA\]); 5. Hospitalization for myocardial infarction within last 6 months; Coronary revascularization (PCI or CABG) within last 12 months; Planned for PCI or CABG in the next 6 months; 6. NYHA class III-IV heart failure; Hospitalization for chronic heart failure exacerbation within last 6 months; 7. Severe valvular diseases; Potential for surgery or percutaneous valve replacement within the study period; 8. Dilated cardiomyopathy; Hypertrophic cardiomyopathy; Rheumatic heart disease; Congenital heart disease; 9. History of dementia, Parkinson's disease, intracranial infection, intracranial tumor, schizophrenia, anxiety, depression; 10. History of neurosurgical operation; 11. History of gastrointestinal tumor, gastrointestinal surgery, inflammatory bowel disease; Hospitalization for peptic ulcer disease exacerbation within last 6 months or anticipated hospitalization for peptic ulcer disease the next 6 months; 12. Hypertension with uncontrolled blood pressure ≥180/110mmHg; 13. Diabetes Mellitus with uncontrolled fasting glucose level ≥200mg/dl (11.1mmol/L), or HbA1C\>8%; 14. Addicted to alcohol; Use of medication influencing cognitive function(i.e., antihistamine, antipsychotic); 15. General anesthesia within last 3 months; 16. Other severe diseases influencing the entry or survival of participants, such as malignant tumor or acquired immune deficiency syndrome, life expectancy \<1 year; 17. Impaired verbal communication who are incapable of providing their own informed consent, or incapable of self-care; 18. Special diet influencing microbiota (i.e. vegetarian); 19. Other conditions inappropriate for recruitment according to the investigators.
Where it's running
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Beijing Chao-yang Hospital, Capital Medical University
Beijing, Beijing Municipality, China Recruiting -
Beijing Hospital
Beijing, Beijing Municipality, China Recruiting -
Chinese People's Liberation Army (PLA) General Hospital
Beijing, Beijing Municipality, China Recruiting -
Xuanwu Hospital, Capital Medical University
Beijing, Beijing Municipality, China Recruiting -
Huadong Hospital Affiliated to Fudan University
Shanghai, Shanghai Municipality, China Recruiting -
Zhejiang Hospital
Hangzhou, Zhejiang, China Recruiting
Study contacts
- Principal investigator: Jun Cai, MD,PhD — Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Chinese Institutes for Medical Research
- Study coordinator: Luyun Fan, MD,PhD
- Email: katevan@163.com
- Phone: 01081992131
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.