Healthy Volunteers Clinical Trial
Official title:
The Effects of Alpha-2 Adrenergic Receptor Modulation on Rates of Carbon-11 Butanol Clearance From Ventricular Cerebrospinal Fluid
This investigator initiated, pilot study will assess the feasibility of characterizing the effects of an orally administered alpha-2 adrenergic (a2a) agonist, clonidine, on the clearance rates of Carbon-11 butanol from the ventricular cerebrospinal fluid (vCSF) with positron emission tomography (PET) in healthy volunteers.
This will be an open label pilot study of feasibility in healthy volunteers with no therapeutic intent. Vital signs, electrocardiogram (ECG) parameters, and sleep quality will be measured repeatedly during a one week lead-in period. Then, the ventricular cerebrospinal fluid (vCSF) clearance rates of [11C]butanol will be measured with PET before and after one week of treatment with clonidine, 0.1 mg by mouth daily at bedtime. Safety surveillance will be augmented with home health monitoring devices that are wifi and blue tooth enabled. Surveillance for adverse events related to drug discontinuation will be monitored for one week during a washout period. Primary Objective: To assess the logistical feasibility and safety of treating normotensive adults with clonidine and monitoring its effects with home health devices. The primary outcome measure will be the number of adverse events (AEs) or serious adverse events (SAEs). Other measures will include changes in sleep quality, vital signs and ECG parameters, such as the PR and corrected QT intervals. Secondary Objectives: To estimate drug-induced changes in vCSF clearance rates of butanol with PET scans acquired before and after treatment as a function of steady-state plasma levels of clonidine. ;
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