Overview An Extension of Istradefylline in North American Parkinson's Disease Patients Who Have Completed Study 6002-INT-001 Status: Terminated Trial end date: 2008-10-01 Target enrollment: Participant gender: Summary This is an, open-label, long-term safety extension for patients in North America who have completed the prior istradefylline study 6002-INT-001. Phase: Phase 3 Details Lead Sponsor: Kyowa Kirin Pharmaceutical Development, Inc.Kyowa Kirin, Inc.Treatments: Istradefylline