Journal
ACTA NEUROLOGICA SCANDINAVICA
Volume 130, Issue 4, Pages 239-247Publisher
WILEY
DOI: 10.1111/ane.12278
Keywords
dopamine agonist; entacapone; levodopa; selegiline; wearing-off
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Funding
- Orion Corporation Orion Pharma
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ObjectivesTo investigate efficacy and safety of entacapone across phase III studies in Parkinson's disease (PD) with wearing-off symptoms. MethodsRetrospective, pooled analysis of four phase 3 randomized, double-blind, placebo-controlled studies with entacapone. Results475 of 808 patients with PD received entacapone and 333 received placebo. Entacapone improved daily OFF- and ON-times (change from baseline) by 0.8h compared with placebo (P<0.0001 for both variables). Entacapone was also better in UPDRS II (P<0.01) and III (P<0.01) scores and global evaluation (P<0.05). Similar benefits were seen in subgroups of patients with and without dopamine agonist (DA) or selegiline, but the subgroup results should be regarded as exploratory. Entacapone was generally well tolerated. Dyskinesia and nausea were more frequently reported by patients on entacapone (25.7% and 14.5% of patients, respectively) than those receiving placebo (15.6% and 6.0%, respectively). However, there was no difference in reports of hallucinations between entacapone (4.8%) and placebo (4.8%). ConclusionsEntacapone improved daily OFF- and ON-times by a mean of 0.8h compared with placebo across the four pooled efficacy studies and was generally well tolerated. The results of this pooled analysis potentially serve as a useful benchmarking data for new therapies (especially levodopa products) in advanced patients with PD.
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