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Double‐blind study of pardoprunox, a new partial dopamine agonist, in early Parkinson's disease
Author(s) -
Bronzova Juliana,
Sampaio Cristina,
Hauser Robert A.,
Lang Anthony E.,
Rascol Olivier,
Theeuwes Ad,
van de Witte Serge V.,
van Scharrenburg Guus
Publication year - 2010
Publication title -
movement disorders
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.352
H-Index - 198
eISSN - 1531-8257
pISSN - 0885-3185
DOI - 10.1002/mds.22948
Subject(s) - placebo , parkinson's disease , somnolence , nausea , medicine , rating scale , levodopa , tolerability , anesthesia , adverse effect , psychology , disease , developmental psychology , alternative medicine , pathology
Abstract This study examined the efficacy and safety of the partial dopamine agonist, pardoprunox (SLV308), in the treatment of patients with early Parkinson's disease (PD). Patients were randomized to receive pardoprunox (n = 69) or placebo (n = 70). Pardoprunox was titrated to each patient's optimal dose (9–45 mg/d) over 2 to 6 weeks and then maintained at this dose for a further 3 weeks. Concomitant anti‐Parkinson treatment was not permitted. In the primary analysis, Unified PD Rating Scale (UPDRS)‐Motor score was improved in pardoprunox‐treated patients (overall mean dose 23.8 mg/d; −7.3 points), as compared with placebo (−3.0 points; P = 0.0001), from baseline to end point. At end point, there were more responders (≥30% reduction in UPDRS‐Motor score) in the pardoprunox group (50.7%) than in the placebo group (15.7%; P < 0.0001). In other secondary analyses, UPDRS‐activities of daily living (ADL) and ‐ADL+Motor scores were also significantly more improved in the pardoprunox group. Nausea was reported by 32 of 68 (47.1%) pardoprunox‐treated patients (vs. 3/70, 4.3%, placebo‐treated patients), with dizziness, somnolence, headache, and asthenia also reported by ≥10 patients. In this exploratory proof‐of‐concept study, pardoprunox significantly improved motor function in patients with early PD. The efficacy and safety profile of pardoprunox justifies its further investigation in PD. © 2010 Movement Disorder Society