RESEARCH / PARTICIPATIONBack to the library
← Find a study
Recruiting · registry status

Testing a gut bacteria preparation

This preliminary study compares a probiotic-based treatment with placebo and measures Parkinson's symptoms.

Testing a treatment or activity · Study reference: ChiCTR2000035122

Plain-language introduction written with AI from the registry; not independently checked by a clinician. Read the original details below ↓

This registry record was last updated over six months ago, or its update date is missing. Recruitment may have changed. Confirm with the team before making plans.

Open the official registry record ↗

Follow this study

Looking for volunteers

Start (reported date)
2020-08-01

Planned dates can move. A study finishing does not tell us when a paper will be published.

No results summary has been confirmed in the registry records we imported. See connected papers below; we keep checking after recruitment ends.

Changes we have recorded
  • 2026-10-11 — recruiting

These are dates we observed a change, not necessarily the dates it happened.

Papers connected to this study

No connected paper has been found yet. The tracker checks the growing library for study identifiers and registry-linked publications.

Who can join?

Ages 40 to 75 · Ask the team who can join

These are starting points, not the full rules. The research team can tell you whether the study is right for your situation.

Read all the rules for taking part

Sex eligibility reported by registry: both

Inclusion criteria: 1. Aged 40-75 years. 2. Patients who meet the diagnosis of Parkinson's disease based on clinical symptoms and Parkinson's Unified Scale Score. 3. The patient's eating is not significantly affected by the disease and can eat independently. 4. The original Parkinson's drug has been used stably for more than 2 weeks. Exclusion criteria: 1. Accepted other clinical trials within one month; 2. Inability to eat independently; 3. Patients with severe heart, liver, and kidney insufficiency, and critical illness; 4. Cancer patients; 5. Have obvious protein food allergies; 6. He received new Parkinson's medication 2 weeks before enrollment; 7. Use of probiotic drugs or food before enrollment.
Full study name & original research details

Official study title

Preliminary clinical study on probiotics Bacteroides fragilis BF839 and Dragon protein in the treatment of senile dementia

Short title used by the registry

Preliminary clinical study on probiotics Bacteroides fragilis BF839 and Dragon protein in the treatment of Parkinson

Original description

Intervention: Intervention group:probiotics Bacteroides fragilis BF839 and Dragon protein;Control group:Placebo; Primary outcome: Scale score;

Conditions reported: Parkinson

Registry records for this study

Records are joined using registration identifiers. Titles alone do not establish that two studies are the same.

Study type
Interventional
Interventions
Intervention group:probiotics Bacteroides fragilis BF839 and Dragon protein;Control group:Placebo;
Phases
0
Sponsor
The Second Affiliated Hospital of Guangzhou Medical University
Start date reported by registry
2020-08-01 (reported)

Registry updated: Not reported · Status last verified by the registry submitter: Not reported

Registry records retrieved 2026-10-14 (UTC). Individual records may have older updates. Recruitment and eligibility must be confirmed with the study team.

Contact the research team

Public study contacts supplied to the registry. Ask whether recruitment is still open and what participation involves.

Deng Yuhong · +86 20 24152843 · 1376708863@qq.com

Study locations

Site status can differ from overall study status. “Status not reported” means local availability needs confirmation. Remote participation and travel arrangements must be checked with the team.

Facility not reported

China

Status not reported

The original descriptions and participation rules come from the registry. Participation is voluntary and does not guarantee benefit.