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Background: In levodopa-treated individuals with Parkinson's disease (PD) and end-of-dose motor fluctuations, the BIPARK-I randomized controlled trial (RCT) demonstrated that opicapone is noninferior to entacapone in reducing OFF-time. Furthermore, the BIPARK-II RCT demonstrated that opicapone is well tolerated and significantly reduces OFF-time compared with placebo. This study developed a cost-effectiveness model (CEM) of opicapone compared with entacapone from the perspective of the English National Health Service (NHS) and personal social services (PSS). Methods: The CEM used a Markov model with three health states, including "Results: The deterministic base case indicates that an individual treated with opicapone accrues fewer costs and more QALYs compared with each entacapone comparator and, therefore, is considered cost-effective. The PSA indicates that the probability that opicapone is cost-effective ranges from 87.2% to 98.0%, depending on the choice of entacapone comparator. Conclusions: Opicapone is cost-effective when compared with entacapone for levodopa-treated PD patients experiencing end-of-dose motor fluctuations. Trial Registration: ClinicalTrials.gov identifier: NCT01568073.
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