Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Sep 1, 2026, 10:55 PM EDT

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

Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: Quinidine Clear all
Completed Phase 3 Interventional

Safety and Efficacy of Dextromethorphan and Quinidine in the Treatment of the Pain of Diabetic Neuropathy

NCT00113620
View directory record Official record
Conditions
Pain, Diabetic Neuropathy
Interventions
Neurodex
Drug
Lead sponsor
Avanir Pharmaceuticals
Industry
Eligibility
18 Years to 80 Years
Enrollment
450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
44
States / cities
Mesa, Arizona • Sun City, Arizona • Hot Springs, Arkansas + 39 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2016 · Synced Sep 1, 2026, 10:55 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Assess the Effect of Voriconazole and Quinidine on the Pharmacokinetics of a Single Dose of Repotrectinib in Healthy Participants

NCT06493409
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Repotrectinib, Voriconazole, Quinidine
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 55 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Daytona Beach, Florida
Source: ClinicalTrials.gov public record
Updated Aug 21, 2025 · Synced Sep 1, 2026, 10:55 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Drug-Drug Interaction Study to Evaluate the Effects of Itraconazole, Carbamazepine, Quinidine and Fluconazole on the Pharmacokinetics and Safety of EDP-323.

NCT06847464
View directory record Official record
Conditions
RSV Infection, Drug Drug Interaction (DDI)
Interventions
EDP-323, Itraconazole, carbamazepine, Quinidine, fluconazole
Drug
Lead sponsor
Enanta Pharmaceuticals, Inc
Industry
Eligibility
18 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jun 30, 2025 · Synced Sep 1, 2026, 10:55 PM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy of AVP-923 in PBA Patients With ALS or MS

NCT00573443
View directory record Official record
Conditions
Pseudobulbar Affect (PBA)
Interventions
dextromethorphan hydrobromide 20 mg and quinidine sulfate 10 mg, dextromethorphan hydrobromide 30 mg and quinidine sulfate 10 mg, Placebo
Drug
Lead sponsor
Avanir Pharmaceuticals
Industry
Eligibility
18 Years to 80 Years
Enrollment
326 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
45
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Anaheim, California + 39 more
Source: ClinicalTrials.gov public record
Updated Apr 11, 2017 · Synced Sep 1, 2026, 10:55 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, 10:55 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, 10:55 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, 10:55 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, 10:55 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, 10:55 PM EDT
Completed Not applicable Interventional Results available

Catheter Ablation vs Anti-arrhythmic Drug Therapy for Atrial Fibrillation Trial

NCT00911508
View directory record Official record
Conditions
Atrial Fibrillation, Arrhythmia
Interventions
Left atrial ablation, Rate or Rhythm Control Therapy
Device · Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 90 Years
Enrollment
2,204 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2017
U.S. locations
76
States / cities
Little Rock, Arkansas • Los Angeles, California • Sacramento, California + 66 more
Source: ClinicalTrials.gov public record
Updated Apr 20, 2021 · Synced Sep 1, 2026, 10:55 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of P-glycoprotein Inhibition on Lenalidomide Pharmacokinetics in Healthy Males

NCT01712828
View directory record Official record
Conditions
Healthy
Interventions
Lenalidomide, Quinidine, Temsirolimus, Diphenhydramine
Drug
Lead sponsor
Celgene
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Nov 7, 2019 · Synced Sep 1, 2026, 10:55 PM EDT
Completed Phase 2 Interventional Results available

Nuedexta for the Treatment of Adults With Autism

NCT01630811
View directory record Official record
Conditions
Autism
Interventions
Nuedexta, Placebo
Drug · Other
Lead sponsor
Sutter Health
Other
Eligibility
18 Years to 60 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Dec 7, 2017 · Synced Sep 1, 2026, 10:55 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study in Healthy Volunteers to Investigate the Effects of Quinidine on the Pharmacokinetics of NKTR-118

NCT01533155
View directory record Official record
Conditions
Drug Induced Constipation
Interventions
Nektar 118, Quinidine, Quinidine placebo, Morphine
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 55 Years
Enrollment
214 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Oct 14, 2014 · Synced Sep 1, 2026, 10:55 PM EDT
Completed Phase 4 Interventional Results available

Safety, Tolerability and Effectiveness of Nuedexta in the Treatment of Pseudobulbar Affect (PBA)

NCT01799941
View directory record Official record
Conditions
Pseudobulbar Affect (PBA), Stroke, Dementia, Traumatic Brain Injury (TBI)
Interventions
Nuedexta (DM 20 mg/Q 10 mg)
Drug
Lead sponsor
Avanir Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
367 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Pensacola, Florida
Source: ClinicalTrials.gov public record
Updated Mar 14, 2017 · Synced Sep 1, 2026, 10:55 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, 10:55 PM EDT
Completed Phase 2 Interventional Results available

Safety and Efficacy of AVP-923 in the Treatment of Central Neuropathic Pain in Multiple Sclerosis

NCT01324232
View directory record Official record
Conditions
Central Neuropathic Pain, Multiple Sclerosis
Interventions
AVP-923-45, AVP-923-30, AVP-923-20, Placebo
Drug
Lead sponsor
Avanir Pharmaceuticals
Industry
Eligibility
18 Years to 85 Years
Enrollment
209 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
44
States / cities
Cullman, Alabama • Phoenix, Arizona • Berkeley, California + 40 more
Source: ClinicalTrials.gov public record
Updated Nov 21, 2021 · Synced Sep 1, 2026, 10:55 PM EDT
Terminated Phase 4 Interventional

Nuedexta in the Treatment of Pseudobulbar Affect in Patients With Alzheimer's Disease

NCT01832350
View directory record Official record
Conditions
Alzheimer's Disease, Pseudobulbar Affect (PBA)
Interventions
Nuedexta (20/10)
Drug
Lead sponsor
St. Joseph's Hospital and Medical Center, Phoenix
Other
Eligibility
55 Years to 90 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Oct 28, 2019 · Synced Sep 1, 2026, 10:55 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Trial to Test the Effects of Other Drugs on SEP-380135 in Healthy Men and Women

NCT07305779
View directory record Official record
Conditions
Schizophrenia
Interventions
SEP-380135, Quinidine Gluconate
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Jan 14, 2026 · Synced Sep 1, 2026, 10:55 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Single and Multiple Ascending Doses, Relative Bioavailability, Food Effect, and Drug-Drug Interaction Study of NX-5948 in Healthy Volunteers

NCT06717269
View directory record Official record
Conditions
Healthy Volunteer
Interventions
NX-5948, Esomeprazole, Placebo, Famotidine, Midazolam, Digoxin, Rosuvastatin, Quinidine
Drug
Lead sponsor
Nurix Therapeutics, Inc.
Industry
Eligibility
19 Years to 55 Years
Enrollment
223 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
2
States / cities
Phoenix, Arizona • Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Jul 27, 2026 · Synced Sep 1, 2026, 10:55 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Drug-drug Interaction Study Between EDP-305, Fluconazole and Quinidine in Healthy Volunteers

NCT03610945
View directory record Official record
Conditions
NASH - Nonalcoholic Steatohepatitis
Interventions
Fluconazole, Quinidine, EDP-305
Drug
Lead sponsor
Enanta Pharmaceuticals, Inc
Industry
Eligibility
18 Years to 55 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Dec 4, 2018 · Synced Sep 1, 2026, 10:55 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Evaluating the Efficacy of Dextromethorphan/Quinidine in Treating Irritability in Huntington's Disease

NCT03854019
View directory record Official record
Conditions
Huntington Disease, Irritability
Interventions
Dextromethorphan/quinidine 20mg/10mg (DM/Q 20mg/10mg), Placebo
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 4, 2024 · Synced Sep 1, 2026, 10:55 PM EDT
Completed Phase 3 Interventional

Safety/Efficacy of AVP-923 in the Treatment of Emotional Lability (Uncontrolled Crying & Laughing) in Patients With ALS

NCT00021697
View directory record Official record
Conditions
Amyotrophic Lateral Sclerosis
Interventions
AVP-923
Drug
Lead sponsor
Avanir Pharmaceuticals
Industry
Eligibility
18 Years to 80 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2002
U.S. locations
17
States / cities
Loma Linda, California • Los Angeles, California • San Francisco, California + 13 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2016 · Synced Sep 1, 2026, 10:55 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study to Assess the Bioavailability, Pharmacokinetics, Safety, and Tolerability of AVP-923 in Healthy Adult Participants

NCT03381664
View directory record Official record
Conditions
Healthy Adult Male and Female Volunteers
Interventions
AVP-923
Drug
Lead sponsor
Avanir Pharmaceuticals
Industry
Eligibility
18 Years to 65 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Feb 22, 2018 · Synced Sep 1, 2026, 10:55 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, 10:55 PM EDT