Session Time: 1:45pm-3:15pm
Location: Agora 3 West, Level 3
Objective: To evaluate opicapone’s (OPC) efficacy in levodopa-treated Parkinson’s Disease (PD) patients with or without concurrent rasagiline use (CRU).
Background: OPC, a once-daily COMT inhibitor, proved effective in the treatment of motor fluctuations in PD patients in two large, pivotal, multinational trials (BIPARK-I and II) ,.
Method: Patient-level data from matching treatment arms in BIPARK-I and II were combined in placebo (PLC) and OPC-50mg groups. Studies had similar designs (primary efficacy endpoint: change from baseline in patient diaries-based absolute OFF-time) and eligibility criteria ,. This exploratory post-hoc analysis was performed to evaluate OPC-50mg and PLC efficacies in levodopa-treated PD patients with or without baseline CRU (the most commonly used MAO-B inhibitor).
Results: In total, 535 patients were randomized; Full Analysis Set comprised 517 [PLC (n=255); OPC-50mg (n=262)]. 12 (PLC) to 15% (OPC-50mg) of patients were using rasagiline at baseline. Mean placebo-adjusted OFF-time reductions were -81.1min (p=0.0469) and -54.2min (p=0.0002) for OPC-50mg patients with and without CRU. There was ~35% more OFF-time reduction in PLC patients without CRU than in those with, but ~9% less OFF-time reduction in OPC-50mg patients without CRU than in those with. A higher-than-PLC proportion of OPC-50mg-receiving patients with CRU achieved OFF- (40.0% vs. 66.7%; p=0.0283) and ON-time (40.0% vs. 64.1%; p=0.0491) responders’ endpoint. Consistently, a higher-than-PLC proportion of OPC-50mg-receiving patients without CRU achieved OFF- (50.2% vs. 67.7%; p=0.0002) and ON-time (46.2% vs. 63.2%; p=0.0003) responders’ endpoint.
Conclusion: Opicapone was effective regardless of concurrent rasagiline use.
References:  Ferreira et al., Lancet Neurology 2016; 15(2):154-165.  Lees et al., JAMA Neurol. 2017; 74(2):197-206.
To cite this abstract in AMA style:A. Lees, J. Ferreira, O. Rascol, W. Poewe, E. Tolosa, H. Gama, D. Magalhães, J. Rocha, P. Soares-da-Silva. Efficacy of opicapone in Parkinson’s disease patients according to baseline rasagiline use: a post-hoc analysis from combined BIPARK-I and II [abstract]. Mov Disord. 2019; 34 (suppl 2). https://www.mdsabstracts.org/abstract/efficacy-of-opicapone-in-parkinsons-disease-patients-according-to-baseline-rasagiline-use-a-post-hoc-analysis-from-combined-bipark-i-and-ii/. Accessed December 7, 2023.
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