Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 6, 2026, 3:33 AM EDT

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Showing 1–7 of 7 matching trials from the live ClinicalTrials.gov search.
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Conditions
Schizophrenia
Interventions
BI 425809 dose 1, BI 425809 dose 2, BI 425809 dose 3, BI 425809 dose 4, Placebo
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years to 50 Years
Enrollment
509 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
21
States / cities
Garden Grove, California • Lemon Grove, California • Orange, California + 17 more
Conditions
Alzheimer Disease
Interventions
BI 425809 dose 1, BI 425809 dose 2, BI 425809 dose 3, BI 425809 dose 4, Placebo
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
55 Years and older
Enrollment
611 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
17
States / cities
Colton, California • Long Beach, California • Redlands, California + 12 more
Conditions
Schizophrenia
Interventions
Iclepertin
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years to 51 Years
Enrollment
1,356 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
49
States / cities
Anaheim, California • Bellflower, California • Culver City, California + 40 more
Conditions
Healthy
Interventions
Lamotrigine, BI 409306, Placebo, BI 425809
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
2
States / cities
Long Beach, California • Marlton, New Jersey
Conditions
Schizophrenia
Interventions
Iclepertin, Placebo
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years to 50 Years
Enrollment
609 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
24
States / cities
Anaheim, California • Culver City, California • Los Angeles, California + 19 more
Conditions
Schizophrenia
Interventions
Iclepertin, Placebo
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years to 50 Years
Enrollment
611 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
20
States / cities
Bellflower, California • Costa Mesa, California • Long Beach, California + 17 more
Conditions
Schizophrenia
Interventions
BI 425809, Placebo
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years to 50 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
28
States / cities
Little Rock, Arkansas • Rogers, Arkansas • Encino, California + 24 more