Understanding how gut bacteria changes can predict stroke outcomes

Dynamic Changes of the Human Microbiome Predict the Risk of Poor Prognosis in Patients With Acute Ischemic Stroke: a Multi-center Study

Observational Nanfang Hospital, Southern Medical University · NCT04978701

This study looks at how changes in gut bacteria can help predict recovery and future health issues in people who have had a stroke.

Quick facts

Study typeObservational
Enrollment2000 (estimated)
Ages18 Years to 80 Years
SexAll
SponsorNanfang Hospital, Southern Medical University Academic / other
Locations1 site (Guanzhou, Guangdong)
Trial IDNCT04978701 on ClinicalTrials.gov

What this trial studies

This observational study aims to investigate the relationship between changes in the human microbiome and the prognosis of patients who have experienced an acute ischemic stroke (AIS). A total of 2000 AIS patients will be enrolled from multiple centers, with biological samples collected at various time points after stroke onset. The study will follow patients for up to 12 months to assess neurological function and the occurrence of subsequent strokes or cardiovascular events. By analyzing the microbiome and its metabolites, researchers hope to identify predictive markers for poor outcomes in stroke patients.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18-80 who have been diagnosed with acute ischemic stroke within the last 7 days.

Not a fit: Patients with severe pre-existing conditions or those who have recently used antibiotics may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to new predictive tools for assessing stroke prognosis based on gut microbiome changes.

How similar studies have performed: While the relationship between the microbiome and stroke outcomes is being explored, this specific approach is relatively novel and has not been extensively tested in prior studies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Meet the AIS diagnostic criteria;
* Age 18-80;
* Within 7 days of the onset;
* Signing the informed consent, providing relevant medical history and biological specimens.

Exclusion Criteria:

* mRS \> score 2 before onset;
* Serious systemic diseases including malignant tumors;
* Hematological diseases and autoimmune diseases;
* ALT or AST \> 2 times the upper limit of normal value or severe liver disease;
* Serum creatinine \> 1.5 times the upper normal limit or severe nephropathy;
* History of alcoholism, drug abuse, and chemical poisoning (e.g. pesticide poisoning);
* History of intestinal tumor, irritable bowel syndrome or inflammatory bowel disease or confirmed in hospital;
* Antibiotic use within 1 month before admission;
* Fece cannot be obtained within 4 days after admission.

Where this trial is running

Guanzhou, Guangdong

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Acute Ischemic Strokeacute ischemic stroke, microbiome, prognosis
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.