A Multicenter, International, Open-label, Safety Study of ND0612, a Solution of Levodopa/Carbidopa Delivered Via a Pump System as a Continuous Subcutaneous Infusion in Subjects With Advanced Parkinson's Disease

This is a multi-center, international, open-label, safety study of ND0612, a solution of LD/CD delivered via a pump system as a continuous SC infusion in subjects with advanced PD. Two cohorts of subjects are candidates for this study: subjects who completed treatment in study ND0612H-006 within one month prior to enrollment (Cohort 1) and ND0612 naïve subjects or subjects who completed treatment in a ND0612 clinical study more than one month before screening (Cohort 2). After screening procedures and confirmation of the inclusion/exclusion criteria, subjects and their study partners will be trained and assisted at their homes during the first week of treatment on the proper operation of the pump system. One mandatory home visit will be performed during the first week and then on a monthly basis during 12-months of treatment. Subjects will return for in-clinic visits at Week 1 and at Months 1, 2, 3, 4, 6, 9, and 12 for assessment of safety and efficacy variables. Subjects will be allowed to continue with study treatment for an optional treatment extension period of up to Month 102 and the clinic visits will be performed every 3 months to assess subject long-term safety. Safety follow-up visits will occur 1, 2, and 3 months after the last SC infusion of ND0612 or after early termination.