Fecal Microbiota Transplantation in Parkinson's Disease.
58 participantsStarted 2026-09-01
Plain-language summary
Fecal microbiota transplantation (FMT) is an effective and safe treatment for Clostridioides difficile infection (CDI). Though CDI is the only indication for FMT, more and more preliminary data on FMT in neurological disorders are reported due to gut-brain axis. This study is a pilot study to apply FMT on patients with Parkinson's disease (PD). The effect of FMT on motor and non-motor symptoms in PD will be also evaluated.
Who can participate
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Clinical diagnosis of idiopathic PD according to UK brain bank criteria.
. PD disease duration ≧5 years to avoid the possible misdiagnosis of atypical parkinsonism.
. Hoehn-Yahr stage 1-4
. Using levodopa in a currently fixed dose.
. Presence of motor complications (motor fluctuation or dyskinesia).
. Written informed consent.
. Age above 18.
Exclusion criteria
. Hoehn-Yahr stage 5. (wheelchair ridden or bedridden due to PD)
. Dementia (MMSE\<24), history of encephalitis, or brain organic lesions, including congenital or acquired structural abnormalities (which were detected through brain computed tomography scan or Magnetic Resonance Imaging) may affect neurological function, leading to various neurological deficits and mpairing the cognitive function.
. Current use of probiotics or in the past 3 months.
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
. For women with childbearing potential. (Female participants are suggested to prevent pregnancy during this trial and undergo a pregnancy test before enrollment.)
. Current need of antibiotics or use in the previous 3 months.
. End stage renal disease caused uremic encephalopathy or liver cirrhosis caused hepatic encephalopathy