Conditions: Parkinson's Disease (PD)
Keywords: Parkinson's disease (PD) BIA 9-1067 Opicapone
Allocation: RANDOMIZED | Intervention model: CROSSOVER
Enrollment: 12
Healthy volunteers: yes

Brief summary:
To investigate the effect of three single oral doses of BIA 9-1067 (25 mg, 50 mg and 100 mg) on the levodopa pharmacokinetics when administered in combination with a single-dose of controlled-release levodopa/carbidopa 100/25 mg (Sinemet® CR 100/25)

Detailed description:
Single centre, double-blind, randomized, placebo-controlled, crossover study with four consecutive single-dose treatment periods. The washout period between doses was to be at least 14 days. On each treatment period, after completion of pre-dose assessments, BIA 9-1067/Placebo was to be administered concomitantly with the dose of Sinemet® CR 100/25; post-dose assessments were to be completed and subjects were to be discharged 72 h post-dose. Subjects were to attend four treatment periods and were to receive a different dose of BIA 9-1067 (25 mg, 50 mg and 100 mg) or placebo during each of these treatment periods.

Arms:
arm 1: Period 1: BIA 9-1067 25 mg Period 2: BIA 9-1067 50 mg Period 3: BIA 9-1067 100 mg Period 4: Placebo

BIA 9-1067/Placebo was to be administered concomitantly with the dose of Sinemet® CR 100/25 (Single-dose of controlled-release levodopa/carbidopa 100/25 mg: 1 tablet of Sinemet® CR 100/25.) arm 2: Period 1: BIA 9-1067 50 mg Period 2: BIA 9-1067 100 mg Period 3: Placebo Period 4: BIA 9-1067 25 mg

BIA 9-1067/Placebo was to be administered concomitantly with the dose of Sinemet® CR 100/25 (Single-dose of controlled-release levodopa/carbidopa 100/25 mg: 1 tablet of Sinemet® CR 100/25.) arm 3: Period 1: BIA 9-1067 100 mg Period 2: Placebo Period 3: BIA 9-1067 25 mg Period 4: BIA 9-1067 50 mg

BIA 9-1067/Placebo was to be administered concomitantly with the dose of Sinemet® CR 100/25 (Single-dose of controlled-release levodopa/carbidopa 100/25 mg: 1 tablet of Sinemet® CR 100/25.) arm 4: Period 1: Placebo Period 2: BIA 9-1067 25 mg Period 3: BIA 9-1067 50 mg Period 4: BIA 9-1067 100 mg

Subjects were to attend four treatment periods and were to receive a different dose of BIA 9-1067 (25 mg, 50 mg and 100 mg) or placebo during each of these treatment periods.

Interventions: intervention 1: BIA 9-1067 intervention 2: Placebo intervention 3: Sinemet® CR 100/25
Intervention descriptions: intervention 1: OPC, Opicapone intervention 2: PLC, Placebo intervention 3: Controlled-release levodopa/carbidopa 100/25 mg

Protocol document: