Before medications are approved by the U.S. Food and Drug Administration (FDA) or before certain therapy methods are widely accepted as effective, they are tested on people who volunteer to participate in a clinical trial.

Search below for a clinical trial, also called a research study, near you. ADAA does not have listings in every U.S. state or Canadian province or territory.

Professionals/Members/Organizations interested in posting a clinical trial click here.


ResearchMatch brings together two groups of people who can benefit each another: those trying to find research studies and researchers looking for participants in their studies.Research is a way to discover knowledge that can have a positive impact on the health of society. Most research studies need a certain number of people to participate, but many end too early because too few volunteers join them. Even when enough people join research studies, it may be difficult to find the right match for them. ResearchMatch helps solve this problem by matching you with researchers who need volunteers like you. It is a free and secure registry, and you can be involved in its mission of helping make a real difference in people’s health in the future. Anyone can join, and ResearchMatch can help match you with any type of research study, ranging from surveys to clinical trials, always giving you the choice to decide what studies may interest you.

You can also Search NIH Clinical Studies by State.
Title Location
Internet Survey of Cannabinoid Experiences in OCD Online Only (
Foquest in the Treatment of Adult ADHD MacAnxiety Research Center, Hamilton, Ontario & The Center for Addiction and Mental Health, Toronto, Ontario
Technology-Based Self-Help Study for parents of children between 6-11 years old Completely online! For more information and to enroll, go to
Treatments for Anxiety: Meditation and Escitalopram Georgetown University, Mass General Hospital, NYU
A Randomized, Double-Blind, Placebo-Controlled Trial of Adjunctive BHV-4157 in Obsessive Compulsive Disorder
Family Dynamics in Adults with Obsessive-Compulsive Disorder Rothman Center for Pediatric Neuropsychiatry-USF
Post Traumatic Research Study (PTSD) 9500 Gillman Drive, MC 0855, La Jolla
Understanding How Ketamine Brings About Rapid Improvement in OCD Palo Alto
Negative Valence Brain Targets and Predictors of Anxiety and Depression Treatment Chicago
Dose Timing of D-Cycloserine to Augment CBT for Social Anxiety Disorder Anxiety & Health Behaviors Lab, The University of Texas at Austin