Striatal and Extra-Striatal Cholinergic Terminal Density in LRRK2-PD Mutation (NCT07642908)
🩺 Plain-English Summary (8th-Grade Level)
This study explores how a specific genetic mutation of leucine-rich repeat kinase 2 (LRRK2) affects individuals with Parkinson's disease (PD), comparing those with the mutation to others with Parkinson's disease and without the mutation (iPD). Participants will complete positron emission tomography (PET) and magnetic resonance imaging (MRI) brain imaging, cognitive tests, motor tests, sensory tests, and questionnaires. The aims of this study are to compare brain chemicals in LRRK2 PD patients with iPD patients and to correlate brain chemicals with motor and cognitive tests in LRRK2 PD and iPD patients.
Who can join: To join this study, participants generally need to meet the listed inclusion criteria (3 items) and avoid the listed exclusions (10 items).
Location: University of Michigan — Ann Arbor, Michigan
📋 "Do I Qualify?" — 1-Minute Self Screener
Instant ChecklistCheck every box below. If you can check all of them, you may meet the study's basic screening requirements (final eligibility is confirmed by the site team).
Usually NOT eligible if any of the following apply:
- Exclusion Criteria:
- Evidence of atypical parkinsonism.
- Contra-indications to MR imaging including but not limited to pacemakers, aneurysm clips, intraocular metal, cochlear implant, or severe claustrophobia.
- Evidence of large vessel stroke or mass lesion on MRI.
- Regular use of typical anti-cholinergic drugs or cholinesterase inhibitors.
- History of deep brain stimulation surgery.
- Pregnant or nursing.
- Suicidal ideation, as indicated by a response of 2 or 3 on question 9 of the Beck Depression Inventory.
- Cognitive impairment that results in the inability to give consent, as demonstrated by the Decision Making Capacity Tool.
- Any other condition or criterion that would preclude safe and meaningful participation in the study.
🔍 Extracted verbatim from the official NIH eligibility criteria. Always confirm with the study coordinator.
📍 All Participating Trial Locations (1 Sites)
- University of Michigan — Ann Arbor, Michigan
💰 Cost, Insurance & Patient Rights
- 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
- Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
- Voluntary Participation: You may withdraw at any time without affecting your standard medical care.