A Phase 3, Multicenter, Randomized, Double-Blind, Placebo-Controlled Study with an Open-Label Phase to Determine theEfficacy and Safety of Tozadenant as Adjunctive Therapy inLevodopa-Treated Patients with Parkinson’s DiseaseExperiencing End-of-Dose Wearing-Off” (TOZ-PD)

Phase 1

Conditions: Parkinson’s Disease
MedDRA version: 20.0Level: PTClassification code 10061536Term: Parkinson's diseaseSystem Organ Class: 10029205 - Nervous system disorders
Therapeutic area: Diseases [C] - Nervous System Diseases [C10]

Registration Number: EUCTR2014-005630-60-CZ

Lead Sponsor: Biotie Therapies Inc. (a wholly owned subsidiary of Acorda Therapeutics Inc.)

Brief Summary: Not available

Detailed Description: Not available

Recruitment & Eligibility

Status: ot Recruiting

Sex: All

Target Recruitment: 450

Inclusion Criteria

• Patient understands study requirements and has given his/her written informed consent on an Institutional Review Board (IRB) or Independent Ethics Committee (IEC) approved consent form.
• Parkinson's disease diagnosis consistent with UK Parkinson's Disease Society Brain Bank Diagnostic criteria
• Minimum of 3 years since diagnosis.
• Meet Hoehn and Yahr PD stage
• Good response to levodopa
• Stable regimen of anti-PD medications
• Patients must have been taking a levodopa-containing anti-PD medication continuously for at least the previous 12 months
• Patient has documented a minimum amount of Off time.
• If of childbearing potential (male and female) must use an acceptable method of contraception

Are the trial subjects under 18? no
Number of subjects for this age range:
F.1.2 Adults (18-64 years) yes
F.1.2.1 Number of subjects for this age range 158
F.1.3 Elderly (>=65 years) yes
F.1.3.1 Number of subjects for this age range 292

Exclusion Criteria

• Previous tozadenant study participation
• Current or recent participation in another study.
• Secondary or atypical parkinsonism
• Neurosurgical intervention for PD
• Patient is taking apomorphine, budipine, istradefylline, tolcapone, or DUOPA™/Duodopa®
• Treatment with excluded medications
• Untreated or uncontrolled hyperthyroidism or hypothyroidism
• Clinically significant out-of-range laboratory
• MMSE out of range
• Current episode of major depression (stable treatment for depression is permitted).
• Recent suicide attempt or suicidal ideation type 4 or type 5 of the Columbia-Suicide Severity Rating Scale (C-SSRS)
• Women lactating or pregnant
• Hypersensitivity to any components of tozadenant or excipients
• Abnormal findings on the physical or neurological examination, or medical history that would make the patient unsuitable for the study
• History of hepatitis or cholangitis