deltatrials
Completed PHASE3 NCT00199420

A Study of Istradefylline (KW-6002) in Treating Patients With Parkinson's Disease on Levodopa

A 12-week, Double Blind, Placebo-controlled, Randomized, Parallel Group, Multicenter, Fixed Dose Study to Evaluate the Efficacy and Safety of 10, 20 and 40 mg/d Oral Dose of KW-6002 (Istradefylline) as Treatment for Parkinson's Disease in Patients With Motor Response Complications on Levodopa/Carbidopa Therapy.

Sponsor: Kyowa Kirin, Inc.

Updated 8 times since 2017 Last updated: Apr 23, 2024 Started: Jul 31, 2004 Primary completion: Nov 30, 2005 Completion: Dec 31, 2005

A PHASE3 clinical study on Parkinson's Disease, this trial is completed. The trial is conducted by Kyowa Kirin, Inc. and has accumulated 8 data snapshots since 2004. Longitudinal tracking of this trial contributes to a broader understanding of treatment development timelines.

Status Flow

~Jan 2017 – ~Feb 2017 · 31 days · monthly snapshotCompleted~Feb 2017 – ~Jun 2018 · 16 months · monthly snapshotCompleted~Jun 2018 – ~Jan 2021 · 31 months · monthly snapshotCompleted~Jan 2021 – ~Oct 2021 · 9 months · monthly snapshotCompleted~Oct 2021 – ~May 2024 · 31 months · monthly snapshotCompleted~May 2024 – ~Jul 2024 · 2 months · monthly snapshotCompleted~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshotCompleted~Sep 2024 – present · 19 months · monthly snapshotCompleted

Change History

8 versions recorded
  1. Sep 2024 — Present [monthly]

    Completed PHASE3

  2. Jul 2024 — Sep 2024 [monthly]

    Completed PHASE3

  3. May 2024 — Jul 2024 [monthly]

    Completed PHASE3

  4. Oct 2021 — May 2024 [monthly]

    Completed PHASE3

  5. Jan 2021 — Oct 2021 [monthly]

    Completed PHASE3

Show 3 earlier versions
  1. Jun 2018 — Jan 2021 [monthly]

    Completed PHASE3

  2. Feb 2017 — Jun 2018 [monthly]

    Completed PHASE3

  3. Jan 2017 — Feb 2017 [monthly]

    Completed PHASE3

    First recorded

Jul 2004

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Kyowa Kirin, Inc.
Data source: Kyowa Kirin Co., Ltd.

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations