Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 11, 2026, 1:58 AM EDT

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Showing 25–48 of 73 matching trials from the live ClinicalTrials.gov search.
Conditions
Urothelial Carcinoma
Interventions
KHK2455, Avelumab
Drug
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
5
States / cities
St. Petersburg, Florida • Iowa City, Iowa • Santa Fe, New Mexico + 2 more
Conditions
Idiopathic Parkinson's Disease
Interventions
Istradefylline 40 mg, Istradefylline 20 mg, Placebo
Drug
Lead sponsor
Kyowa Kirin Co., Ltd.
Industry
Eligibility
30 Years and older
Enrollment
613 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
41
States / cities
Phoenix, Arizona • Sun City, Arizona • Tucson, Arizona + 36 more
Conditions
Pain, Cancer
Interventions
EN3267
Drug
Lead sponsor
Kyowa Kirin Co., Ltd.
Industry
Eligibility
17 Years and older
Enrollment
139 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Conditions
Solid Tumor
Interventions
KW-2450
Drug
Lead sponsor
Kyowa Kirin Co., Ltd.
Industry
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
3
States / cities
Baltimore, Maryland • Detroit, Michigan • New York, New York
Conditions
X-Linked Hypophosphatemia
Interventions
Burosumab
Biological
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
1 Year to 4 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
3
States / cities
New Haven, Connecticut • Indianapolis, Indiana • St Louis, Missouri
Conditions
Sleep Disorder, Restless Legs Syndrome
Interventions
Istradefylline (KW-6002)
Drug
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
18 Years and older
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
1
States / cities
Princeton, New Jersey
Conditions
Hepatic Impairment
Interventions
KW-6356
Drug
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
3
States / cities
Miami, Florida • Orlando, Florida • San Antonio, Texas
Conditions
Pharmacokinetics of ASKP1240, Pharmacodynamics of ASKP1240, Healthy Volunteers
Interventions
ASKP1240
Drug
Lead sponsor
Astellas Pharma Global Development, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Stage IV Melanoma
Interventions
KW-2871
Drug
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2004
U.S. locations
2
States / cities
Birmingham, Alabama • Tampa, Florida
Conditions
Hematologic Neoplasms
Interventions
KK2430
Drug
Lead sponsor
Kyowa Kirin Co., Ltd.
Industry
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Greenville, South Carolina
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate Abuse Potential of Istradefylline

NCT02609477
Conditions
Drug Abuse
Interventions
Istradefylline, Phentermine 45 mg, Placebo
Drug · Other
Lead sponsor
Kyowa Kirin Co., Ltd.
Industry
Eligibility
18 Years to 55 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Salt Lake City, Utah
Conditions
Healthy
Interventions
granisetron
Drug
Lead sponsor
Kyowa Kirin Co., Ltd.
Industry
Eligibility
18 Years to 50 Years
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
West Bend, Wisconsin
Conditions
Malignant Glioma
Interventions
Granisetron, Ondansetron
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Durham, North Carolina
Conditions
Neovascular Age-Related Macular Degeneration (nAMD)
Interventions
KHK4951, Aflibercept Injection
Drug
Lead sponsor
Kyowa Kirin Co., Ltd.
Industry
Eligibility
50 Years and older
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
38
States / cities
Mesa, Arizona • Tucson, Arizona • Arcadia, California + 34 more
Conditions
X-Linked Hypophosphatemia
Interventions
burosumab, Oral Phosphate Supplement, active vitamin D
Biological · Drug
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
1 Year to 12 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
5
States / cities
Los Angeles, California • San Francisco, California • Indianapolis, Indiana + 2 more
Conditions
Tumor Induced Osteomalacia (TIO), Epidermal Nevus Syndrome (ENS)
Interventions
Burosumab
Biological
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
7
States / cities
Golden, Colorado • New Haven, Connecticut • Indianapolis, Indiana + 4 more
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
Conditions
Parkinson's Disease
Interventions
istradefylline
Drug
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
30 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2003
U.S. locations
1
States / cities
Princeton, New Jersey
Conditions
Multiple Myeloma
Interventions
KW-2478, Bortezomib
Drug
Lead sponsor
Kyowa Kirin Co., Ltd.
Industry
Eligibility
18 Years and older
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
9
States / cities
Tucson, Arizona • Long Beach, California • Los Angeles, California + 6 more
Conditions
Acute Myelogenous Leukemia, Acute Lymphoblastic Leukemia, Myelodysplastic Syndromes, Chronic Myelogenous Leukemia
Interventions
KW-2449
Drug
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
18 Years and older
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
4
States / cities
Baltimore, Maryland • Princeton, New Jersey • New York, New York + 1 more
Conditions
Acute Myelogenous Leukemia (AML)
Interventions
KW-2449
Drug
Lead sponsor
Kyowa Kirin Co., Ltd.
Industry
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
4
States / cities
Baltimore, Maryland • Philadelphia, Pennsylvania • Greenville, South Carolina
Conditions
Healthy Male Subjects
Interventions
KW-6356
Drug
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Madison, Wisconsin
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
Conditions
Myeloma
Interventions
Lenalidomide, Monocyte derived DCs loaded with KRN7000
Drug · Biological
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
New Haven, Connecticut