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ClinicalTrials.gov public records Last synced May 22, 2026, 6:01 AM EDT

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Showing 1–13 of 13 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Parkinson's Disease With End of Dose Wearing Off Clear all
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Parkinson's Disease
Interventions
E2007
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
9
States / cities
Peoria, Arizona • Little Rock, Arkansas • Oxnard, California + 6 more
Source: ClinicalTrials.gov public record
Updated Feb 10, 2013 · Synced May 22, 2026, 6:01 AM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Parkinson's Disease
Interventions
KW-6002 (istradefylline)
Drug
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
30 Years and older
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2003
U.S. locations
1
States / cities
Princeton, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 24, 2024 · Synced May 22, 2026, 6:01 AM EDT
Completed Phase 3 Interventional
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Istradefylline (KW-6002)
Drug
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
30 Years and older
Enrollment
580 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
2
States / cities
Princeton, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 24, 2024 · Synced May 22, 2026, 6:01 AM EDT
Terminated Phase 3 Interventional Results available
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Istradefylline
Drug
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
30 Years and older
Enrollment
504 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
Princeton, New Jersey
Source: ClinicalTrials.gov public record
Updated May 16, 2024 · Synced May 22, 2026, 6:01 AM EDT
Completed Phase 3 Interventional
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Istradefylline (KW-6002)
Drug
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
30 Years and older
Enrollment
230 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
1
States / cities
Princeton, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 24, 2024 · Synced May 22, 2026, 6:01 AM EDT
Terminated Phase 3 Interventional Results available
View directory record Official record
Conditions
Idiopathic Parkinson Disease
Interventions
Tozadenant
Drug
Lead sponsor
Biotie Therapies Inc.
Industry
Eligibility
30 Years to 80 Years
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
31
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Long Beach, California + 25 more
Source: ClinicalTrials.gov public record
Updated May 2, 2019 · Synced May 22, 2026, 6:01 AM EDT
Completed Phase 4 Interventional Results available
View directory record Official record
Conditions
Parkinson's Disease With End of Dose Wearing Off
Interventions
Carbidopa/levodopa/entacapone
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
30 Years to 85 Years
Enrollment
359 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
41
States / cities
Phoenix, Arizona • Fullerton, California • Irvine, California + 38 more
Source: ClinicalTrials.gov public record
Updated Mar 29, 2017 · Synced May 22, 2026, 6:01 AM EDT
Completed Phase 2Phase 3 Interventional
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Tozadenant (SYN115) 60 mg BID, Placebo, Levodopa (L-dopa), Tozadenant (SYN115) 120 mg BID, Tozadenant (SYN115) 180 mg BID, Tozadenant (SYN115) 240 mg BID
Drug
Lead sponsor
Biotie Therapies Inc.
Industry
Eligibility
30 Years to 80 Years
Enrollment
420 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
40
States / cities
Birmingham, Alabama • La Jolla, California • Loma Linda, California + 37 more
Source: ClinicalTrials.gov public record
Updated Jan 16, 2019 · Synced May 22, 2026, 6:01 AM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Istradefylline (KW-6002)
Drug
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
30 Years and older
Enrollment
325 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2003
U.S. locations
1
States / cities
Princeton, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 24, 2024 · Synced May 22, 2026, 6:01 AM EDT
Completed Phase 3 Interventional
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Istradefylline ( KW-6002)
Drug
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
30 Years and older
Enrollment
1,100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
1
States / cities
Princeton, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 24, 2024 · Synced May 22, 2026, 6:01 AM EDT
Terminated Phase 3 Interventional Results available
View directory record Official record
Conditions
Idiopathic Parkinson's Disease
Interventions
tozadenant, placebo
Drug
Lead sponsor
Biotie Therapies Inc.
Industry
Eligibility
30 Years to 80 Years
Enrollment
449 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
40
States / cities
Birmingham, Alabama • Sun City, Arizona • Loma Linda, California + 37 more
Source: ClinicalTrials.gov public record
Updated Apr 2, 2019 · Synced May 22, 2026, 6:01 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Parkinson's Disease
Interventions
E2007
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
10
States / cities
Little Rock, Arkansas • Oxnard, California • New Haven, Connecticut + 7 more
Source: ClinicalTrials.gov public record
Updated Jun 1, 2015 · Synced May 22, 2026, 6:01 AM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Entacapone
Drug
Lead sponsor
Novartis
Industry
Eligibility
20 Years and older
Enrollment
285 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2007
U.S. locations
1
States / cities
East Hanover, New Jersey
Source: ClinicalTrials.gov public record
Updated Jan 10, 2024 · Synced May 22, 2026, 6:01 AM EDT