Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 24, 2026, 2:06 AM EDT

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Showing 1–5 of 5 matching trials from the live ClinicalTrials.gov search.
Conditions
Cognitive Dysfunction, Schizophrenia
Interventions
TC-5619, Placebo
Drug
Lead sponsor
Targacept Inc.
Industry
Eligibility
18 Years to 60 Years
Enrollment
184 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
7
States / cities
National City, California • Torrance, California • Atlanta, Georgia + 4 more
Conditions
ADHD
Interventions
TC-5619-238, Placebo
Drug
Lead sponsor
Targacept Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
134 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
16
States / cities
Bradenton, Florida • Jacksonville, Florida • Lauderhill, Florida + 13 more
Conditions
Schizophrenia, Negative Symptoms, Cognitive Dysfunction
Interventions
TC-5619, Placebo
Drug
Lead sponsor
Targacept Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
603 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
22
States / cities
Garden Grove, California • Glendale, California • Long Beach, California + 19 more
Conditions
Alzheimer's Disease
Interventions
TC-5619, Placebo
Drug
Lead sponsor
Targacept Inc.
Industry
Eligibility
55 Years to 80 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
10
States / cities
Long Beach, California • San Francisco, California • Hallandale, Florida + 7 more
Conditions
Attention Deficit Hyperactivity Disorder
Interventions
TC-5619-238 5mg, TC-5619-238 25mg, Placebo
Drug
Lead sponsor
Targacept Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
14
States / cities
Beverly Hills, California • National City, California • Colorado Springs, Colorado + 9 more