This is a six week, prospective, randomized, open-label study to evaluate the tolerability of switching from pramipexole, either acutely or by gradual substitution, in Parkinson' disease (PD) patients with motor fluctuations. PD patients with motor fluctuations (e.g., end of dose akinesia, simple on/off fluctuations) who are receiving a stable anti-parkinsonian medication regimen that includes levodopa/carbidopa at a dose of at least 200 mg/day and pramipexole at a dose of .75-4.5 mg/day on a TID schedule for at least two weeks will be eligible to enter the study. Patients will be randomized at baseline to acute switch or gradual substitution of ropinirole for pramipexole at a mg ration of 3x, while continuing on the remainder of their anti-parkinsonian regimen unchanged. The gradual substitution will be executed over three weeks. Following the week 3 visit, the ropinirole dose may be freely titrated to achieve week 6. Each evaluation will include a 24-hour home diary and UPDRS assessments. Week 3 and week6 evaluations will also include investigator global assessments.

Project Start
1999-12-01
Project End
2000-11-30
Budget Start
1998-10-01
Budget End
1999-09-30
Support Year
40
Fiscal Year
2000
Total Cost
$97,156
Indirect Cost
Name
Ohio State University
Department
Type
DUNS #
098987217
City
Columbus
State
OH
Country
United States
Zip Code
43210
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