- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00955045
A Long-Term, Safety Study With a Flexible Dose Range of KW-6002 in Patients With Motor Response Complications on Levodopa/Carbidopa Therapy
October 4, 2023 updated by: Kyowa Kirin, Inc.
A Long-Term, Multicenter, Open-Label, Safety Study With a Flexible Dose Range of KW-6002 as Treatment for Parkinson's Disease in Patients With Motor Response Complications on Levodopa/Carbidopa Therapy
The primary objective of this study was to establish the long-term tolerability and safety of istradefylline treatment in subjects with Parkinson's disease treated with levodopa/carbidopa.
In addition, treatment response and maintenance of response were assessed.
Study Overview
Study Type
Interventional
Phase
- Phase 2
- Phase 3
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
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New Jersey
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Princeton, New Jersey, United States, 08540
- 48 Centers in the US and 4 in Canada
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
30 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Description
Inclusion Criteria:
Eligible subjects were:
- male or female
- at least 30 years of age
- had completed participation in a prior double-blind istradefylline trial
- met United Kingdom's Parkinson's Disease Society (UKPDS) brain bank criteria (Step 1 and Step 2) for Parkinson's disease and the severity of the Parkinson's disease was defined as Stages 2-4 on the Modified Hoehn and Yahr Scale while in the OFF state
- had been treated with levodopa for at least 1 year
- had been on a stable Parkinson's disease regimen within normal therapeutic ranges including levodopa for at least 4 weeks before Baseline
- were currently taking at least 4 doses of levodopa per day (3 doses per day if at least 2 doses contained slow-release formulation)
- had predictable end-of-dose wearing-off
Exclusion Criteria:
- none
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: istradefylline
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
August 1, 2002
Primary Completion (Actual)
October 1, 2003
Study Completion (Actual)
October 1, 2003
Study Registration Dates
First Submitted
August 4, 2009
First Submitted That Met QC Criteria
August 5, 2009
First Posted (Estimated)
August 7, 2009
Study Record Updates
Last Update Posted (Actual)
October 6, 2023
Last Update Submitted That Met QC Criteria
October 4, 2023
Last Verified
October 1, 2023
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Brain Diseases
- Central Nervous System Diseases
- Nervous System Diseases
- Parkinsonian Disorders
- Basal Ganglia Diseases
- Movement Disorders
- Synucleinopathies
- Neurodegenerative Diseases
- Parkinson Disease
- Physiological Effects of Drugs
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Purinergic Antagonists
- Purinergic Agents
- Purinergic P1 Receptor Antagonists
- Adenosine A2 Receptor Antagonists
- Istradefylline
Other Study ID Numbers
- 6002-US-007
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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