Condition
Parkinson Disease Dementia clinical trials and research
Research outlook What's coming for Parkinson's disease: the next 6 months to 5 yearsAs of November 12, 2026, Find a Trial lists 5 Parkinson Disease Dementia clinical trials that are recruiting, at sites in 2 countries (most in United States (4), China (1)). By phase: Phase 4 (1), Phase 1/2 (1). Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 5Clinical trials
- 2Countries
Newest Parkinson Disease Dementia clinical trials
| Study | Phase | Where | Status | Registered |
|---|---|---|---|---|
| A look at why Lewy body conditions cause visual hallucinations | — | New York, New York | Recruiting | Sep 30, 2026 |
| MAO-B PET/CT imaging in Parkinson’s-related diseases | — | Hefei, Anhui and 2 other locations | Recruiting | Jul 6, 2026 |
| Cholinergic degeneration and cognitive fluctuations in Lewy body dementias | Phase 4 | Richmond, Virginia | Recruiting | Dec 16, 2025 |
| Tributyrin for memory, thinking, and walking problems in Parkinson's disease | Phase 1/2 | Ann Arbor, Michigan | Recruiting | Sep 4, 2025 |
| Database for Parkinson's Disease and Related Disorders | — | Philadelphia, Pennsylvania | Recruiting | Aug 9, 2021 |
All recruiting trials (5)
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A look at why Lewy body conditions cause visual hallucinations
This study tests brain‑imaging in people with Lewy body diseases who do or don’t experience visual hallucinations, and in healthy volunteers, to see how brain networks might create these images.
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MAO-B PET/CT imaging in Parkinson’s-related diseases
This study tests whether 18F-FPyCO/SMBT-1 PET/CT can help diagnose Parkinson’s-related conditions by measuring lesion uptake in patients with PD, PD dementia, or parkinsonism.
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Cholinergic degeneration and cognitive fluctuations in Lewy body dementias
This project will test whether loss of cholinergic neurons is linked to cognitive fluctuations in people with Lewy body dementias using blood and skin biomarkers, multimodal MRI, prolonged EEG, and will try an 8‑week galantamine treatment in a small subgroup.
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Tributyrin for memory, thinking, and walking problems in Parkinson's disease
This trial will test whether taking tributyrin three times a day for about 80–100 days helps memory, thinking, walking, and balance in adults with Parkinson's disease or Parkinson disease dementia, and will monitor safety.
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Database for Parkinson's Disease and Related Disorders
This study is creating a detailed database of information from people with Parkinson's disease to help researchers understand how the disease progresses and how different treatments work over time.
Related topics
Quick answers
How many Parkinson Disease Dementia clinical trials are recruiting right now?
5, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 2 countries. The most sites are in United States (4 trials), China (1 trial). Each study page lists its sites and which ones are recruiting.
What phases are they in?
Phase 4: 1, Phase 1/2: 1. Trials with no phase listed are usually device, behavioural or observational studies.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.