The Michael J. Fox Foundation for Parkinson's Research Grants 2013
P.O. Box 275
Kingston, NJ 08528
toll free: 1-866-PUW-WALK (1-866-789-9255)
fax: (609) 688-0875
|PROJECT TITLE: Inhaled Levodopa as a Treatment for Intermittent Motor Fluctuations in Parkinson’s Disease Patients
Investigators/Authors: Martin I. Freed, MD and Richard Batycky, PhDPromising Outcomes of Original Grant: Intrapulmonary delivery of L-dopa results in rapid, consistent and predictable augmentation of plasma L-dopa levels in both healthy volunteers and subjects with Parkinson’s disease. The unique pharmacokinetic profile translates into rapid and durable improvement in motor function without worsening dyskinesia in Parkinson’s patients. Results from prior clinical studies enabled dose selection for this, Phase 2b study of CVT-301, Civitas’ proprietary inhaled L-dopa which is being developed as a treatment to provide rapid relief of intermittent OFF episodes.
Objectives for Supplemental Investigation: The objective of this study is to demonstrate that inhaled L-dopa safely provides rapid symptomatic relief of OFF episodes during chronic, at-home use. The clinical benefit of adjunct CVT-301 use will be quantified both in the clinic, by evaluation of time course of change in UPDRS motor score following drug administration, and “at-home” by evaluation of the time to ON following drug administration upon the emergence of OFF symptoms. This work is part of the continued clinical development of CVT-301 and will investigate, for the first time, its use at home as an adjunct to a patient’s standard combination L-dopa and decarboxylase inhibitor (for example, carbidopa) oral regimen.
Importance of This Research for the Development of a New PD Therapy: This study is part of an integrated project plan to develop a new treatment to Parkinson’s patients to address an unmet medical need. Successful results should enable the study of CVT-301 in pivotal Phase 3 studies.
Investigators/Authors: Sheila Oren, MD
Objective: Improving consistency of plasma levodopa (LD) has been a longstanding pharmacological challenge. ND0612 is a proprietary formulation of LD and carbidopa (CD) continuously administered subcutaneously (SC). It proposes a practical and efficacious symptomatic treatment strategy, providing more continuous dopaminergic stimulation that would consequently reduce or prevent motor complications in Parkinson’s disease (PD) patients. ND0612 was safe, tolerable and exhibited dose-dependent constant LD plasma levels when administered for 24 hours in Phase I-II trials in healthy volunteers and PD patients. The present study will evaluate the clinical effects and the pharmacokinetics of a 14-day repeated ND0612 administration in advanced PD patients.
Project Description: ND-0612 will be administered SC, continuously for 24h/day, via a delivery pump system during two weeks, using different day and night rates, to evaluate the safety, tolerability and pharmacokinetics of ND0612 in advanced PD patients. The ease of use and logistics associated with the patients’ use of the SC pump in a conventional home setting will be evaluated. The patients will be evaluated for their symptoms improvement by recording their motor symptoms and activity of daily living, quality of life, quality of sleep and “on”-“off” periods during visit days.Oral LD dose supplementation or adjustment will be made, if needed. Blood samples will be collected at predetermined time points for the determination of plasma LD and CD concentrations. Dermal examinations will ensure the follow up on safety.
Anticipated Outcome: We anticipate that ND0612 will be safe, tolerable and maintain therapeutic LD plasma concentrations in PD patients. Using exploratory clinical endpoints, it is anticipated that ND0612 will exhibit improved PD symptoms. Furthermore, it is anticipated that the ease of use and logistics accompanying the use of the SC delivery pump, as well as the requested oral LD adjustment will be determined.