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These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 24, 2026, 12:31 PM EDT

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

Showing 1–14 of 14 matching trials from the live ClinicalTrials.gov search.

Conditions: Alzheimer's Disease, Stroke, Parkinson's Disease, Traumatic Brain Injury
Interventions: AVP-923; Drug
Lead sponsor: Avanir Pharmaceuticals; Industry
Eligibility: 18 Years to 80 Years
Enrollment: 600 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2003 – 2007
U.S. locations: 39
States / cities: Phoenix, Arizona • La Jolla, California • Los Angeles, California + 31 more

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

Conditions: Suicidal Ideation, Major Depressive Disorder, Treatment Resistant Depression
Interventions: Nitrous oxide gas for inhalation, Placebo; Drug
Lead sponsor: University of Chicago; Other
Eligibility: 18 Years to 65 Years
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2026
U.S. locations: 1
States / cities: Chicago, Illinois

Conditions: Body Dysmorphic Disorder
Interventions: Interpretation Bias Modification, Progressive Muscle Relaxation; Behavioral
Lead sponsor: Florida State University; Other
Eligibility: 18 Years to 65 Years
Enrollment: 50 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2015 – 2018
U.S. locations: 1
States / cities: Tallahassee, Florida

Conditions: Social Anxiety Disorder
Interventions: Interpretation Bias Modification, Progressive Muscle Relaxation; Behavioral
Lead sponsor: Florida State University; Other
Eligibility: 18 Years to 65 Years
Enrollment: 65 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2017
U.S. locations: 1
States / cities: Tallahassee, Florida

Conditions: Depressive Disorder, Major, Depressive Disorder, Treatment-Resistant
Interventions: Nitrous Oxide, Placebo gas, MRI; Drug · Device
Lead sponsor: Washington University School of Medicine; Other
Eligibility: 18 Years to 65 Years
Enrollment: 60 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2017 – 2027
U.S. locations: 1
States / cities: St Louis, Missouri

Conditions: Alzheimer's Disease, Amyotrophic Lateral Sclerosis, Brain Injury, Huntington's Disease, Multiple Sclerosis, Parkinson's Disease, Stroke, Spinal Cord Injury
Interventions: Laughter Therapy; Other
Lead sponsor: Brown, Theodore R., M.D., MPH; Individual
Eligibility: 18 Years and older
Enrollment: 24 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2016 – 2018
U.S. locations: 1
States / cities: Kirkland, Washington

Conditions: Treatment- Resistant Bipolar Disorder, Bipolar Disorder, Bipolar Depressive Disorder
Interventions: Nitrous Oxide, Placebo; Drug
Lead sponsor: Washington University School of Medicine; Other
Eligibility: 18 Years to 75 Years
Enrollment: 1 participant
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2016
U.S. locations: 1
States / cities: St Louis, Missouri

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