• Victor S C Fung, Lilie Herawati, Ying Wan, Movement Disorder Society of Australia Clinical Research and Trials Group, and QUEST-AP Study Group.
• Movement Disorder Unit, Department of Neurology, Westmead Hospital, NSW, Australia. vscfung@ozemail.com.au
• Mov. Disord. 2009 Jan 15; 24 (1): 25-31.

AbstractWe aimed to investigate whether treatment with levodopa/carbidopa/entacapone when compared with levodopa/carbidopa improves quality of life in Parkinson's disease (PD) patients with no or minimal, nondisabling motor fluctuations. This is a multicenter, randomized, double-blind study. One hundred eighty-four patients on 3 to 4 equal doses of 100/25 to 200/50 mg levodopa/carbidopa or levodopa/benserazide, 0 to 3 hours of nondisabling OFF time over a 48 hour period and no dyskinesia were randomized to levodopa/carbidopa/entacapone or levodopa/carbidopa treatment for 12 weeks. The primary outcome measure was quality of life as assessed by the PDQ-8. Secondary outcome measures were the UPDRS parts I-IV, and the Wearing Off Card. Treatment with levodopa/carbidopa/entacapone resulted in significantly greater improvements in PDQ-8 scores compared to treatment with levodopa/carbidopa (mean difference 1.4 points, P = 0.021). Statistically significant improvements were seen predominantly in nonmotor domains (depression, personal relationships, communication, stigma, all P < 0.05; dressing P = 0.056). Patients who were randomly assigned to levodopa/carbidopa/entacapone also showed significantly greater improvement in UPDRS part II scores (P = 0.032) with UPDRS part III scores showing borderline significance. Differences in UPDRS parts I and IV and Wearing Off Card scores were not significant. Treatment with levodopa/carbidopa/entacapone results in improved quality of life compared with levodopa/carbidopa in PD patients with mild or minimal, nondisabling motor fluctuations.

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