23
Participants
Start Date
December 31, 2007
Primary Completion Date
October 31, 2009
Study Completion Date
October 31, 2009
Methylphenidate (MPD)
Participants will be given 1 mg/kg of MPD divided in three doses (at 8 am, 12 noon, and 4 pm). A four-week titration period will be used, using 0.25-mg/kg increments per week until achieving the weight-adjusted target dosage, which may range from five to eight 10-mg tablets per day. The maximum daily dose will be 80 mg/day.
Placebo
Participants will be given placebo instead of active MPD.
University Neurology-Movement Disorders Clinic, Cincinnati
Michael J. Fox Foundation for Parkinson's Research
OTHER
University of Cincinnati
OTHER