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

> **NCT00957203** · PHASE3 · COMPLETED · sponsor: **Kyowa Kirin Co., Ltd.** · enrollment: 308 (actual)

## Conditions studied

- Parkinson's Disease

## Interventions

- **DRUG:** Istradefylline

## Key facts

- **NCT ID:** NCT00957203
- **Lead sponsor:** Kyowa Kirin Co., Ltd.
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2009-10
- **Primary completion:** 2011-09
- **Final completion:** 2012-03
- **Target enrollment:** 308 (ACTUAL)
- **Last updated:** 2012-08-31


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00957203

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00957203, "Long-Term Safety Study of KW-6002 (Istradefylline) in Parkinson's Disease Patients". Retrieved via AI Analytics 2026-06-08 from https://api.ai-analytics.org/clinical/NCT00957203. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*