BACKGROUND: Treatment with rasagiline mesylate, an irreversible monoamine oxidase type B inhibitor, improves symptoms of early Parkinson disease (PD). Preclinical studies suggest that this compound may also modify the progression of PD. OBJECTIVE: To compare the effects of early and later initiation of rasagiline on progression of disability in patients with PD. DESIGN: Double-blind, parallel-group, randomized, delayed-start clinical trial. SETTINGS AND PATIENTS: Four hundred four subjects with early PD, not requiring dopaminergic therapy, enrolled at 32 sites in the United States and Canada. INTERVENTIONS: Subjects were randomized to receive rasagiline, 1 or 2 mg/d, for 1 year or placebo for 6 months followed by rasagiline, 2 mg/d, for 6 months. MAIN OUTCOME MEASURE: Change in total Unified Parkinson's Disease Rating Scale score from baseline to 12 months. RESULTS:Three hundred seventy-one subjects were included in the 1-year efficacy analysis. Subjects treated with rasagiline, 2 mg/d, for 1 year had a 2.29-unit smaller increase in mean adjusted total Unified Parkinson's Disease Rating Scale score compared with subjects treated with placebo for 6 months followed by rasagiline, 2 mg/d, for 6 months (P =.01). The mean adjusted difference between the placebo/rasagiline, 2 mg/d, group and those receiving rasagiline, 1 mg/d, for 1 year was -1.82 unit on the Unified Parkinson's Disease Rating Scale score (P =.05). CONCLUSION: Subjects treated with rasagiline, 2 and 1 mg/d, for 12 months showed less functional decline than subjects whose treatment was delayed for 6 months.
RCT Entities:
BACKGROUND: Treatment with rasagiline mesylate, an irreversible monoamine oxidase type B inhibitor, improves symptoms of early Parkinson disease (PD). Preclinical studies suggest that this compound may also modify the progression of PD. OBJECTIVE: To compare the effects of early and later initiation of rasagiline on progression of disability in patients with PD. DESIGN: Double-blind, parallel-group, randomized, delayed-start clinical trial. SETTINGS AND PATIENTS: Four hundred four subjects with early PD, not requiring dopaminergic therapy, enrolled at 32 sites in the United States and Canada. INTERVENTIONS: Subjects were randomized to receive rasagiline, 1 or 2 mg/d, for 1 year or placebo for 6 months followed by rasagiline, 2 mg/d, for 6 months. MAIN OUTCOME MEASURE: Change in total Unified Parkinson's Disease Rating Scale score from baseline to 12 months. RESULTS: Three hundred seventy-one subjects were included in the 1-year efficacy analysis. Subjects treated with rasagiline, 2 mg/d, for 1 year had a 2.29-unit smaller increase in mean adjusted total Unified Parkinson's Disease Rating Scale score compared with subjects treated with placebo for 6 months followed by rasagiline, 2 mg/d, for 6 months (P =.01). The mean adjusted difference between the placebo/rasagiline, 2 mg/d, group and those receiving rasagiline, 1 mg/d, for 1 year was -1.82 unit on the Unified Parkinson's Disease Rating Scale score (P =.05). CONCLUSION: Subjects treated with rasagiline, 2 and 1 mg/d, for 12 months showed less functional decline than subjects whose treatment was delayed for 6 months.
Authors: Judith Dams; Bernhard Bornschein; Jens Peter Reese; Annette Conrads-Frank; Wolfgang H Oertel; Uwe Siebert; Richard Dodel Journal: Pharmacoeconomics Date: 2011-12 Impact factor: 4.981
Authors: Nicholas H G Holford; Phylinda L S Chan; John G Nutt; Karl Kieburtz; Ira Shoulson Journal: J Pharmacokinet Pharmacodyn Date: 2006-04-20 Impact factor: 2.745