Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 19, 2026, 4:07 AM EDT

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Showing 1–5 of 5 matching trials from the live ClinicalTrials.gov search.
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Conditions
Schizophrenia
Interventions
Luvadaxistat, Placebo
Drug
Lead sponsor
Neurocrine Biosciences
Industry
Eligibility
18 Years to 60 Years
Enrollment
256 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
16
States / cities
Garden Grove, California • Lemon Grove, California • Los Angeles, California + 13 more
Conditions
Healthy
Interventions
TAK-831 Tablet T2, Placebo, TAK-831 Suspension
Drug
Lead sponsor
Neurocrine Biosciences
Industry
Eligibility
18 Years to 55 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Glendale, California
Conditions
Friedreich Ataxia
Interventions
TAK-831, TAK-831 Placebo
Drug
Lead sponsor
Neurocrine Biosciences
Industry
Eligibility
18 Years to 55 Years
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
6
States / cities
Los Angeles, California • Gainesville, Florida • Tampa, Florida + 3 more
Conditions
Schizophrenia
Interventions
Placebo, Luvadaxistat
Drug
Lead sponsor
Neurocrine Biosciences
Industry
Eligibility
18 Years to 50 Years
Enrollment
216 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
33
States / cities
Phoenix, Arizona • Bentonville, Arkansas • Bryant, Arkansas + 24 more
Conditions
Schizophrenia
Interventions
Luvadaxistat, Matching Placebo
Drug
Lead sponsor
Neurocrine Biosciences
Industry
Eligibility
18 Years to 60 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Gaithersburg, Maryland