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Showing 1–14 of 14 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: AVP-786 Clear all
Completed Phase 3 Interventional

Assessment of the Efficacy, Safety, and Tolerability of AVP-786 (Deudextromethorphan Hydrobromide [d6-DM]/Quinidine Sulfate [Q]) for the Treatment of Agitation in Patients With Dementia of the Alzheimer's Type

NCT03393520
View directory record Official record
Conditions
Agitation in Patients With Dementia of the Alzheimer's Type
Interventions
Placebo, AVP-786
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
50 Years to 90 Years
Enrollment
601 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
93
States / cities
Chandler, Arizona • Gilbert, Arizona • Phoenix, Arizona + 68 more
Source: ClinicalTrials.gov public record
Updated Nov 19, 2024 · Synced Sep 1, 2026, 8:58 PM EDT
Terminated Phase 3 Interventional Results available

Study to Assess the Efficacy, Safety, and Tolerability of AVP-786 for the Treatment of Agitation in Patients With Dementia of the Alzheimer's Type

NCT04464564
View directory record Official record
Conditions
Agitation in Patients With Dementia of the Alzheimer's Type
Interventions
AVP-786, Placebo
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
50 Years to 90 Years
Enrollment
241 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
46
States / cities
Phoenix, Arizona • Anaheim, California • Costa Mesa, California + 36 more
Source: ClinicalTrials.gov public record
Updated May 29, 2025 · Synced Sep 1, 2026, 8:58 PM EDT
Terminated Phase 3 Interventional Results available

Assessment of the Efficacy, Safety, and Tolerability of AVP-786 for the Treatment of Agitation in Patients With Dementia of the Alzheimer's Type

NCT04408755
View directory record Official record
Conditions
Agitation in Patients With Dementia of the Alzheimer's Type
Interventions
AVP-786, Placebo
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
50 Years to 90 Years
Enrollment
184 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
45
States / cities
Fort Smith, Arkansas • La Jolla, California • Los Angeles, California + 33 more
Source: ClinicalTrials.gov public record
Updated May 29, 2025 · Synced Sep 1, 2026, 8:58 PM EDT
Completed Phase 3 Interventional Results available

Efficacy, Safety, and Tolerability of AVP-786 for the Treatment of Agitation in Participants With Dementia of the Alzheimer's Type

NCT02442778
View directory record Official record
Conditions
Agitation in Participants With Dementia of the Alzheimer's Type
Interventions
AVP-786-18, Placebo, AVP-786-28, AVP-786-42.63
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
50 Years to 90 Years
Enrollment
522 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
79
States / cities
Chandler, Arizona • Tucson, Arizona • Fayetteville, Arkansas + 55 more
Source: ClinicalTrials.gov public record
Updated Sep 8, 2022 · Synced Sep 1, 2026, 8:58 PM EDT
Terminated Phase 2Phase 3 Interventional

Efficacy, Safety, and Tolerability of AVP-786 for the Treatment of Negative Symptoms of Schizophrenia

NCT03896945
View directory record Official record
Conditions
Schizophrenia
Interventions
Placebo, AVP-786
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years to 60 Years
Enrollment
136 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
61
States / cities
Little Rock, Arkansas • Anaheim, California • Bellflower, California + 53 more
Source: ClinicalTrials.gov public record
Updated May 23, 2024 · Synced Sep 1, 2026, 8:58 PM EDT
Terminated Phase 2 Interventional Results available

Safety, Tolerability and Efficacy of AVP-786 for the Treatment of Disinhibition

NCT02534038
View directory record Official record
Conditions
Disinhibition Syndrome
Interventions
AVP-786, Placebo
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
50 Years to 90 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Sep 1, 2026, 8:58 PM EDT
Terminated Phase 2 Interventional Results available

Study to Assess the Efficacy, Safety, and Tolerability of AVP-786 for the Treatment of Intermittent Explosive Disorder

NCT03420222
View directory record Official record
Conditions
Intermittent Explosive Disorder
Interventions
AVP-786, Placebo
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
9
States / cities
Gainesville, Florida • Atlanta, Georgia • Chicago, Illinois + 6 more
Source: ClinicalTrials.gov public record
Updated May 23, 2022 · Synced Sep 1, 2026, 8:58 PM EDT
Completed Phase 2 Interventional

Efficacy, Safety, and Tolerability Study of AVP-786 as an Adjunctive Therapy in Patients With Major Depressive Disorder With an Inadequate Response to Antidepressant Treatment

NCT02153502
View directory record Official record
Conditions
Depressive Disorder, Treatment-Resistant
Interventions
AVP-786 (d6-dextromethorphan hydrobromide and quinidine sulfate combination), Placebo
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years and older
Enrollment
206 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
32
States / cities
Birmingham, Alabama • Bellflower, California • Costa Mesa, California + 26 more
Source: ClinicalTrials.gov public record
Updated Jul 12, 2026 · Synced Sep 1, 2026, 8:58 PM EDT
Completed Phase 3 Interventional Results available

Efficacy, Safety and Tolerability of AVP-786 for the Treatment of Agitation in Patients With Dementia of the Alzheimer's Type

NCT02442765
View directory record Official record
Conditions
Agitation in Patients With Dementia of the Alzheimer's Type
Interventions
AVP-786, Placebo
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
50 Years to 90 Years
Enrollment
387 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
111
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Little Rock, Arkansas + 78 more
Source: ClinicalTrials.gov public record
Updated Feb 12, 2023 · Synced Sep 1, 2026, 8:58 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Drug Interaction Study Between AVP-923 and Itraconazole and Between AVP-786 and Itraconazole in Healthy Adult Subejcts

NCT02402595
View directory record Official record
Conditions
Healthy
Interventions
AVP-923, AVP-786, Itraconazole
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Apr 27, 2026 · Synced Sep 1, 2026, 8:58 PM EDT
Completed Phase 2 Interventional Results available

Study to Assess the Efficacy, Safety, and Tolerability of AVP-786 for the Treatment of Neurobehavioral Disinhibition Including Aggression, Agitation, and Irritability in Participants With Traumatic Brain Injury

NCT03095066
View directory record Official record
Conditions
Neurobehavioral Disinhibition
Interventions
Placebo, AVP-786-28, AVP-786-42.63
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
168 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
54
States / cities
Tuscaloosa, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 45 more
Source: ClinicalTrials.gov public record
Updated Oct 28, 2025 · Synced Sep 1, 2026, 8:58 PM EDT
Completed Phase 2 Interventional Results available

Efficacy, Safety, and Tolerability of AVP-786 for the Treatment of Residual Schizophrenia

NCT02477670
View directory record Official record
Conditions
Schizophrenia
Interventions
AVP-786, Placebo
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years to 60 Years
Enrollment
145 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
17
States / cities
Cerritos, California • Garden Grove, California • National City, California + 14 more
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Sep 1, 2026, 8:58 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Phase 1 Study Comparing AVP-786 With AVP-923

NCT02336347
View directory record Official record
Conditions
Healthy Volunteer
Interventions
AVP-786, AVP-923
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years to 60 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Apr 27, 2026 · Synced Sep 1, 2026, 8:58 PM EDT
Terminated Phase 3 Interventional Results available

Long Term, Extension Study of the Safety and Efficacy of AVP-786 for the Treatment of Agitation in Patients With Dementia of the Alzheimer's Type

NCT02446132
View directory record Official record
Conditions
Agitation in Patients With Dementia of the Alzheimer's Type
Interventions
AVP-786
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
50 Years to 90 Years
Enrollment
1,197 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2024
U.S. locations
171
States / cities
Chandler, Arizona • Phoenix, Arizona • Scottsdale, Arizona + 103 more
Source: ClinicalTrials.gov public record
Updated Oct 14, 2025 · Synced Sep 1, 2026, 8:58 PM EDT