20 Et dobbelt- blindet studie sammenlignede Tasmar med entakapon hos patienter med Parkinsons sygdom, som havde mindst 3 timers OFF- time pr. dag, mens de fik optimeret behandling med levodopa.
A double-blind trial compared Tasmar with entacapone in Parkinson's disease patients who had at least three hours of OFF time per day while receiving optimised levodopa therapy.