Independent directory Public ClinicalTrials.gov records United States
Clear filters

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, 4:33 PM EDT

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

Showing 25–43 of 43 matching trials from the live ClinicalTrials.gov search.
Completed Not applicable Interventional Accepts healthy volunteers

Fear Extinction and Mechanisms of Change in Obsessive Compulsive Disorder

NCT02467374
Conditions
Obsessive Compulsive Disorder
Interventions
Behavior Therapy
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 60 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Recruiting Phase 1 Interventional Accepts healthy volunteers

Inflammatory Challenge and Fear

NCT06630884
Conditions
Posttraumatic Stress Disorder (PTSD)
Interventions
Typhoid VI Polysaccharide Vaccine Injectable Solution, Saline Placebo (0.5mL injection)
Biological · Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years
Enrollment
288 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
San Francisco, California
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Pilot Study of Pharmaceutical and Behavioral Interventions to Treat Anxiety Disorders

NCT01631682
Conditions
Posttraumatic Stress Disorder, Anxiety Disorder
Interventions
Propranolol, Reactivation, Mifepristone, Intranasal oxytocin
Drug · Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 35 Years
Enrollment
186 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
1
States / cities
Charlestown, Massachusetts
Completed Not applicable Interventional Accepts healthy volunteers

Could Meditation Modulate the Neurobiology of Learning Not to Fear?

NCT01320969
Conditions
Healthy Individuals, Highly Stressed
Interventions
Mindfulness-Based Stress Reduction course
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
85 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Charlestown, Massachusetts
Conditions
Adolescence
Interventions
Moderate Intensity Exercise
Behavioral
Lead sponsor
Wayne State University
Other
Eligibility
14 Years to 17 Years
Enrollment
174 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
Detroit, Michigan
Conditions
Posttraumatic Stress Disorder
Interventions
Dexamethasone, Placebo (sugar pill)
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older · Male only
Enrollment
129 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
Dallas, Texas
Completed Not applicable Interventional Results available

Reward Processes and Rehearsal in Exposure Therapy

NCT06132425
Conditions
Anxiety Disorders, Public Speaking Fear
Interventions
Exposure, Rehearsal
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
88 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Los Angeles, California
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Social Support and Enhanced Fear Extinction

NCT04565041
Conditions
Fear, Anxiety
Interventions
Social Support
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 55 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Social Anxiety Disorder
Interventions
Fear extinction, Cannabidiol Cap/Tab, Placebo
Behavioral · Drug
Lead sponsor
Hartford Hospital
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Hartford, Connecticut
Conditions
Social Anxiety
Interventions
Coordinated Anxiety Learning and Management (CALM)
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 50 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Palo Alto, California
Enrolling by invitation Early Phase 1 Interventional Accepts healthy volunteers

Opioids and Social Support Enhanced Extinction Effects

NCT04166071
Conditions
Fear
Interventions
Naltrexone, Placebo
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 35 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
2
States / cities
Los Angeles, California
Conditions
PTSD
Interventions
Transcranial magnetic stimulation (TMS), Fear Conditioning and Extinction Paradigm
Device · Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 70 Years
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2028
U.S. locations
1
States / cities
Houston, Texas
Conditions
Phobias, Claustrophobia, Social Phobia
Interventions
Extinction Training, Low-Level Laser Therapy, Sham Low-Level Laser Therapy
Behavioral · Device
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 65 Years
Enrollment
112 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2020
U.S. locations
1
States / cities
Austin, Texas
Completed Not applicable Interventional Accepts healthy volunteers

Transcranial Direct Current Stimulation and Fear Extinction

NCT03907917
Conditions
Anxiety Disorders
Interventions
tDCS
Device
Lead sponsor
Thomas Adams
Other
Eligibility
18 Years to 55 Years
Enrollment
67 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
2
States / cities
New Haven, Connecticut • Lexington, Kentucky
Terminated Phase 2 Interventional Accepts healthy volunteers

Enhancing Exposure Therapy for Post-traumatic Stress Disorder

NCT01574118
Conditions
Chronic Posttraumatic Stress Disorder
Interventions
Revisiting the Trauma memories, Processing the trauma memories, Psychoeducation, Trauma Memory Retrieval Trial, Exposure to video clips related to the patient's trauma, Breathing retraining, Exposure Homework, Compound extinction
Behavioral
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 65 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2020
U.S. locations
1
States / cities
Austin, Texas
Conditions
Stress Disorder, Post Traumatic
Interventions
Placebo, Levodopa
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
25 Years to 50 Years · Female only
Enrollment
103 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Little Rock, Arkansas
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Enhancing Exposure Therapy for Snake and Spider Phobias

NCT02160470
Conditions
Specific Phobia
Interventions
Exposure Therapy with Retrieval, Exposure Therapy with Compound Extinction, Exposure Therapy with Retrieval and Compound Extinction, Therapist-guided Exposure Therapy
Behavioral
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 65 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2019
U.S. locations
1
States / cities
Austin, Texas
Conditions
Obsessive-Compulsive Disorder
Interventions
Nabilone, Placebo
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 55 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
New York, New York
Conditions
Posttraumatic Stress Disorder
Interventions
Placebo capsule, Dronabinol 7.5 milligram oral capsule
Drug
Lead sponsor
Wayne State University
Other
Eligibility
18 Years to 60 Years
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Detroit, Michigan