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Terminated Phase 2Phase 3 Interventional

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

ClinicalTrials.gov ID: NCT03896945

Public ClinicalTrials.gov record NCT03896945. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 2, 2026, 7:09 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Multicenter, Randomized, Double-blind, Placebo-controlled, Parallel-arm Study to Assess the Efficacy, Safety, and Tolerability of AVP-786 (Deudextromethorphan Hydrobromide [d6-DM]/Quinidine Sulfate [Q]) for the Treatment of Negative Symptoms of Schizophrenia

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This study will be conducted to evaluate the efficacy, safety, and tolerability of AVP-786, as compared with placebo, for the treatment of negative symptoms of schizophrenia.

Study identification

NCT ID
NCT03896945
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 2, Phase 3
Enrollment
136 participants

Conditions and interventions

Conditions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years to 60 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Feb 14, 2019
Primary completion
May 22, 2023
Completion
May 22, 2023
Last update posted
May 23, 2024

2019 – 2023

United States locations

U.S. sites
61
U.S. states
20
U.S. cities
56
Facility City State ZIP Site status
Clinical Research Site Little Rock Arkansas 72209
Clinical Research Site #840-041 Anaheim California 92805
Clinical Research Site #840-013 Bellflower California 90706
Clinical Research Site #840-079 Costa Mesa California 92626
Clinical Research Site #840-027 Culver City California 90230
Clinical Research Site #840-006 Garden Grove California 92845
Clinical Research Site #840-026 Glendale California 91206
Clinical Research Site# 840-067 La Habra California 90631
Clinical Research Site# 840-083 Lafayette California 94549
Clinical Research Site 840-002 Lemon Grove California 91945
Clinical Research Site Oakland California 94607
Clinical Research Site #840-035 Oceanside California 92056
Clinical Research Site# 840-010 Panorama City California 91402
Clinical Research Site #840-012 Riverside California 92506
Clinical Research Site# 840-081 San Bernardino California 92408
Clinical Research Site #840-005 San Diego California 92102
Clinical Research Site #840-096 Santee California 92071
Clinical Research Site #840-015 Torrance California 90502
Clinical Research Site# 840-094 Doral Florida 33178
Clinical Research Site #840-046 Hollywood Florida 33021
Clinical Research Site Site #840-093 Homestead Florida 33030
Clinical Research Site #840-062 Lakeland Florida 33803
Clinical Research Site #840-024 Largo Florida 33770
Clinical Research Site #840-032 Miami Florida 33122
Clinical Research Site #840-080 Miami Florida 33173
Clinical Research Site #840-084 Miami Lakes Florida 33014
Clinical Research Site Okeechobee Florida 34972
Clinical Research Site # 840-102 Weston Florida 33331
Clinical Research Site #840-088 Atlanta Georgia 30303
Clinical Research Site #840-091 Atlanta Georgia 30318
Clinical Research Site #840-008 Atlanta Georgia 30328
Clinical Research Site #840-063 Decatur Georgia 30030
Clinical Research Site Chicago Illinois 60640
Clinical Research Site #840-090 Springfield Illinois 62702
Clinical Research Site Lake Charles Louisiana 70629
Clinical Research Site #840-098 Shreveport Louisiana 71101
Clinical Research Site #840-072 Worcester Massachusetts 01605
Clinical Research Site #840-057 Flowood Mississippi 39232
Clinical Research Site #840-040 Olivette Missouri 63132
Clinical Research Site #840-029 Saint Charles Missouri 63304
Clinical Research Site #840-034 Saint Charles Missouri 63304
Clinical Research Site St Louis Missouri 63109
Clinical Research Site #840-025 St Louis Missouri 63118
Clinical Research Site #840-028 Berlin New Jersey 08009
Clinical Research Site #840-009 Jamaica New York 11432
Clinical Research Site #840-070 New York New York 10027
Clinical Research Site Rochester New York 14618
Clinical Research Site #840-074 Charlotte North Carolina 28211
Clinical Research Site #840-052 Middleburg Heights Ohio 44130
Clinical Research Site Edmond Oklahoma 73013
Clinical Research Site #840-065 Oklahoma City Oklahoma 73112
Clinical Research Site #840-061 Media Pennsylvania 19063
Clinical Research Site Norristown Pennsylvania 19401
Clinical Research Site #840-099 Myrtle Beach South Carolina 28117
Clinical Research Site Memphis Tennessee 38119
Clinical Research Site DeSoto Texas 75115
Clinical Research Site #840-058 Fort Worth Texas 76104
Clinical Research Site #840-018 Richardson Texas 75080
Clinical Research Site San Antonio Texas 78229
Clinical Research Site #840-069 Springville Utah 84663
Clinical Research Site #840-051 Everett Washington 98201

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 11 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03896945, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted May 23, 2024 · Synced Sep 2, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03896945 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →