# Gut Microbiota Across Early Stages of Synucleinopathy: From High-risk Relatives, REM Sleep Behavior Disorder to Early Parkinson's Disease

> **NCT03645226** · — · COMPLETED · sponsor: **Chinese University of Hong Kong** · enrollment: 441 (actual)

## Conditions studied

- REM Sleep Behavior Disorder

## Interventions

- **DIAGNOSTIC_TEST:** Colonoscopy

## Key facts

- **NCT ID:** NCT03645226
- **Lead sponsor:** Chinese University of Hong Kong
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2018-05-06
- **Primary completion:** 2023-03-27
- **Final completion:** 2023-03-29
- **Target enrollment:** 441 (ACTUAL)
- **Last updated:** 2023-08-30


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03645226

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03645226, "Gut Microbiota Across Early Stages of Synucleinopathy: From High-risk Relatives, REM Sleep Behavior Disorder to Early Parkinson's Disease". Retrieved via AI Analytics 2026-06-16 from https://api.ai-analytics.org/clinical/NCT03645226. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*