Civitas Therapeutics, Inc., a privately-held pharmaceutical company developing transformative therapeutics using the ARCUS(TM) respiratory delivery platform, today announced positive topline results from a Phase 2 clinical trial of CVT-301, an inhaled formulation of levodopa (L-dopa). CVT-301 is being developed as an adjunct therapy to provide rapid and reliable relief from intermittent debilitating motor fluctuations (OFF episodes) that impact a large proportion of Parkinson's disease patients.
“The results of this study represent proof-of-concept of CVT-301 as a therapy to provide rapid and precise control of patients' L-dopa levels enabling better management of their intermittent motor fluctuations. This has the potential to be a very meaningful advancement in the symptomatic treatment of Parkinson's disease”
The study used a randomized, placebo-controlled design to evaluate L-dopa pharmacokinetics and pharmacodynamic effects following administration of CVT-301 to Parkinson's disease patients experiencing motor fluctuations. Administering CVT-301 to patients in the OFF state produced a rapid and durable improvement in motor function. The pharmacokinetic data recapitulated the Phase 1 study results showing CVT-301 provided immediate L-dopa absorption and consistent increases in plasma concentrations in marked contrast to the delayed and variable L-dopa levels seen with Sinemet® (oral L-dopa/carbidopa). All doses of CVT-301 were safe and well tolerated with no increase in the frequency or severity of dyskinesias relative to oral. Civitas plans to present the comprehensive data from the study at a future scientific meeting.
"The unpredictable wearing off of oral L-dopa and the dyskinetic side effects are among the most significant challenges with the current management of Parkinson's disease," said Dr. Todd Sherer, CEO of The Michael J. Fox Foundation for Parkinson's Research. "There remains a critical unmet need for therapies that increase the reliability of L-dopa while not exacerbating the side effects."
"The significant inherent variability of oral L-dopa absorption is known to be a major contributor to the development of debilitating OFF episodes," said Dr. Martin Freed, Chief Medical Officer and co-founder of Civitas. "CVT-301 has the potential to provide a transformative benefit to patients by enabling more predictable and effective symptomatic relief without worsening side effects such as dyskinesia, thereby allowing them to regain control of their lives."
"The results of this study represent proof-of-concept of CVT-301 as a therapy to provide rapid and precise control of patients' L-dopa levels enabling better management of their intermittent motor fluctuations. This has the potential to be a very meaningful advancement in the symptomatic treatment of Parkinson's disease," said Dr. Karl Kieburtz, President of Clintrex LLC, the Robert J. Joynt Professor of Neurology, University of Rochester, and a member of the Civitas Scientific Advisory Board.
Civitas Therapeutics, Inc.