Long-Term Safety Study of KW-6002 (Istradefylline) in Parkinson's Disease Patients (6002-010)

August 30, 2012 updated by: Kyowa Kirin Co., Ltd.

Long-Term Safety Study of KW-6002 (Istradefylline) in the Treatment of Parkinson's Disease (Phase 3)

Patients with Parkinson's disease who completed the prior double-blind study 6002-009 are eligible to enter into this long-term study. The purpose of this study is to evaluate the safety and efficacy of KW-6002 administered long-term in patients with advanced Parkinson's disease treated with levodopa.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

308

Phase

  • 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

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

20 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Be willing and able to give written informed consent
  2. Completion of the study 6002-009

Exclusion Criteria:

  1. Mini-mental status examination score of 23 or less
  2. Less than 70% of compliance in the study 6002-009
  3. Emergency deviation in the study 6002-009
  4. Pregnant females

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?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Istradefylline
Drug: Istradefylline
Oral istradefylline (KW-6002) 20 or 40 mg once daily
Other Names:
  • KW-6002

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Adverse events

Secondary Outcome Measures

Outcome Measure
Reducing the mean total hours of awake time per day spent in the OFF state
Reducing the mean percentage of awake time per day spent in the OFF state
Mean change in the total hours and the percentage of awake time per day spent in the ON state (without dyskinesia, with dyskinesia, with non-troublesome dyskinesia, and with troublesome dyskinesia)
Change in Unified Parkinson's Disease Rating Scale (UPDRS)
Change in the Clinical Global Impression - Improvement scale (CGI-I)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Kyowa Kirin Co., Ltd.

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

October 1, 2009

Primary Completion (Actual)

September 1, 2011

Study Completion (Actual)

March 1, 2012

Study Registration Dates

First Submitted

August 7, 2009

First Submitted That Met QC Criteria

August 11, 2009

First Posted (Estimate)

August 12, 2009

Study Record Updates

Last Update Posted (Estimate)

August 31, 2012

Last Update Submitted That Met QC Criteria

August 30, 2012

Last Verified

August 1, 2012

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 6002-010

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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