Phenylbutyrate Response as a Biomarker for Alpha-synuclein Clearance From the Brain
Last updated on July 2021Recruitment
- Recruitment Status
- Active, not recruiting
- Estimated Enrollment
- Same as current
Summary
- Conditions
- Parkinson's Disease
- Type
- Interventional
- Phase
- Phase 1
- Design
- Allocation: Non-RandomizedIntervention Model: Parallel AssignmentMasking: None (Open Label)Primary Purpose: Treatment
Participation Requirements
- Age
- Between 21 years and 80 years
- Gender
- Both males and females
Description
This is a Phase I clinical trial of phenylbutyrate in 20 Parkinson patients and 20 age- and sex-matched normal control subjects to see if phenylbutyrate can increase the removal of alpha-synuclein from the brain into the bloodstream. All subjects will receive 20 grams/day of phenylbutyrate in the li...
This is a Phase I clinical trial of phenylbutyrate in 20 Parkinson patients and 20 age- and sex-matched normal control subjects to see if phenylbutyrate can increase the removal of alpha-synuclein from the brain into the bloodstream. All subjects will receive 20 grams/day of phenylbutyrate in the liquid form phenylbutyrate-triglyceride taken as one teaspoonful three times per day with meals. Blood will be drawn on two days prior to starting phenylbutyrate to measure alpha-synuclein concentrations. Phenylbutyrate-triglyceride will then be started and the change in plasma alpha-synuclein will be measured on day 1, 7, 14, and 21 days while taking phenylbutyrate. After 21 days, the drug will be stopped and a final blood sample will be measured at 28 days to see if plasma alpha-synuclein has fallen to its pre-phenylbutyrate level. No effects on Parkinson symptoms are expected during this short trial. Please note that although taking any type of Parkinson's drugs for symptomatic treatment disqualifies you, if you and your neurologist are willing and able to have you off Parkinson medication for six weeks before and during the trial, you may be eligible to participate.
Tracking Information
- NCT #
- NCT02046434
- Collaborators
- Not Provided
- Investigators
- Principal Investigator: Curt R Freed, MD University of Colorado, Denver