An improvement of 20% was seen in 52% of the subjects receiving rotigotine, 68% of the subjects receiving ropinirole and 30% of the subjects receiving placebo (Difference rotigotine versus placebo 21.7%; CI95% 11.1%; 32.4%, difference ropinirole versus placebo 38.4% CI95% 28.1%; 48.6%, difference ropinirole versus rotigotine 16.6%; CI95% .7.6%; 25.7%). The mean improvement in the UPDRS score (Parts II + III) was 6.83 points (baseline 33.2 points) in the rotigotine arm, 10.78 point in the ropinirole arm (baseline 32.2 points) and 2.33 points in the placebo arm (baseline 31.3 points).