# Microbiota Intervention to Change the Response of Parkinson's Disease

> **NCT03575195** · PHASE1,PHASE2 · SUSPENDED · sponsor: **University of California, San Francisco** · enrollment: 86 (estimated)

## Conditions studied

- Parkinson Disease

## Interventions

- **DRUG:** Rifaximin
- **OTHER:** Placebo

## Key facts

- **NCT ID:** NCT03575195
- **Lead sponsor:** University of California, San Francisco
- **Sponsor class:** OTHER
- **Phase:** PHASE1,PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** SUSPENDED
- **Start date:** 2019-07-15
- **Primary completion:** 2026-08
- **Final completion:** 2026-08
- **Target enrollment:** 86 (ESTIMATED)
- **Why stopped:** Conducting an interim analysis
- **Last updated:** 2025-09-04

## Collaborators

- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03575195

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03575195, "Microbiota Intervention to Change the Response of Parkinson's Disease". Retrieved via AI Analytics 2026-06-23 from https://api.ai-analytics.org/clinical/NCT03575195. Licensed CC0.

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