Conditions: Parkinson's Disease
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 38
Healthy volunteers: no

Brief summary:
This is a multicenter, parallel-group, rater-blinded, randomized clinical study in subjects with advanced PD investigating the efficacy, PK, safety and tolerability of continuous SC infusion of 2 dosing regimens of ND0612H, a solution of LD/CD delivered via a pump system as a continuous SC infusion, compared to standard oral LD/CD. After screening, subjects will undergo 1 day of standard oral LD/CD inpatient dosing followed by 2 days of inpatient treatment with 1 of 2 randomly allocated (1:1 randomization ratio) dosing regimens of ND0612H continuous SC infusion. Subjects will then continue on a maintenance dose of the assigned ND0612H dosing regimen for the next 25 days. A safety visit will be performed 4 weeks after the last SC administration of the study drug for a total of about 2.5 months of participation for each subject enrolled into the trial.

Detailed description:
This phase IIa randomized, controlled, parallel-group study will be conducted in 36 subjects with advanced PD who are treated with oral LD/CD at a stable dose and have predictable morning "OFF" periods and at least 2.5 hrs of daily "OFF" periods. The study will investigate the efficacy, PK, safety and tolerability of continuous SC infusion of 2 dosing regimens of ND0612H. Regimen 1 will employ continuous infusion for 24 hrs using a low infusion rate at night and a higher rate at daytime with supplemental administration of oral immediate release (IR) LD/CD in the mornings. During the inpatient period of about 3 days, the site staff will manage the administration and replacement of the infusions. On Day 4 subjects will be discharged home after they and their study partners have received training on the administration of the infusion. Subjects will then continue on a maintenance dose of the assigned ND0612 dosing regimen for the next 25 days. A safety visit will be performed 4 weeks after the last SC administration of the study drug.

Arms:
arm 1: Dosing Regimen 1 of ND0612 (Levodopa/Carbidopa solution) continuous SC infusion over 24 hours. arm 2: Dosing Regimen 2 of ND0612 (Levodopa/Carbidopa solution) continuous SC infusion over 14 hours. Infusion started at wake-up time supplemented with an oral IR LD/CD tablet.

Interventions: intervention 1: ND0612 (Levodopa/Carbidopa solution) intervention 2: ND0612 (Levodopa/Carbidopa solution) + morning oral IR-LD/CD
Intervention descriptions: intervention 1: The total daily dose of levodopa/carbidopa 720/90 mg. Device: CRONO TWIN pump system. intervention 2: The total daily dose levodopa/carbidopa from ND0612 538/67 mg. Morning dose of oral IR-LD/CD 150/15 mg. Device: CRONO TWIN pump system.

Protocol document: