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About
This arm is a positron emission tomography (PET) biomechanistic GABA-A receptor target engagement study that includes detailed clinical and motor assessments before and after the i.v. administration of 1 mg flumazenil or placebo in Parkinson disease subjects. Each subject will receive 1mg flumazenil or placebo at two visits.
Full description
This biomechanistic GABA-A receptor target engagement study includes clinical and motor assessments before and at various time points up to approximately 90 minutes after the i.v. administration of 1 mg flumazenil and placebo in Parkinson disease subjects. Thirty Parkinson disease subjects with disease severity (Hoehn and Yahr) stages 2-4 will be recruited. Baseline [11C]FMZ and vesicular monoamine transporter type 2 (VMAT2) [11C]DTBZ brain PET imaging will be performed prior to drug administration to assess for GABA-A receptor availability and the integrity of nigrostriatal dopaminergic nerve terminals, respectively.
Enrollment
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Primary purpose
Allocation
Interventional model
Masking
36 participants in 2 patient groups
There are currently no registered sites for this trial.
Start date
Mar 09, 2018 • 7 years ago
End date
Jun 04, 2021 • 3 years ago
Results posted
ViewJun 29, 2022 • 2 years ago
Today
May 04, 2025
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Data sourced from clinicaltrials.gov
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