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.

Organizations across the country are looking for people like you to take part in their research studies. The list of studies below have been selected from ClinicalTrials.gov based on their inclusion of one or more of the following terms: anxiety disorders, depression, OCD, PTSD, and bipolar disorder.

The Anxiety and Depression Association of America (ADAA) is supportive of research that is conducted through clinical trials. Participating in research can potentially help change the mental health outcomes for you and others who suffer anxiety, depression, and related disorders. You may learn about new interventions/treatments that are being considered.

Read this ADAA blog about things to know and questions to ask before committing to a clinical trial.

This website page is brought to you in partnership with ResearchMatch.


845 matching studies

Sponsor Condition of Interest
Apply tACS to Alleviate Anxiety Symptoms
NeuroCognitive and Behavioral Institute Clinical Research Foundation Anxiety Disorders
This is a clinical research trial exploring the efficacy of non-invasive neuromodulation (NM) intervention in the treatment of anxiety. The NM used in this study consists of 25 minutes of 5 hz transcranial alternating current stimulation (tACS) titrated up to 2mA targeting the anterolateral amygdal1 expand

This is a clinical research trial exploring the efficacy of non-invasive neuromodulation (NM) intervention in the treatment of anxiety. The NM used in this study consists of 25 minutes of 5 hz transcranial alternating current stimulation (tACS) titrated up to 2mA targeting the anterolateral amygdala across 12 treatment sessions with a 3-4 week time period. The studied population includes patients with the following anxiety disorders: generalized anxiety disorder (GAD), social anxiety disorder (SAD), separation anxiety disorder of childhood, and post-traumatic stress disorder (PTSD). Participants will be randomly assigned to tACS or sham, cross-over, then followed by an optional open-label extension phase.

Type: Interventional

Start Date: Jun 2021

open study

BLOOM: Boldly Living outdOOrs for Mental Health
University of California, San Francisco Anxiety Stress Disorder, Posttraumatic Loneliness Adverse Childhood Experiences
In 2019, the Office of the California Surgeon General launched the ACEs Aware Initiative in collaboration with the California Department of Health Care Services. This ambitious campaign aims to develop a network of care model of healthcare delivery that explicitly links health resources within comm1 expand

In 2019, the Office of the California Surgeon General launched the ACEs Aware Initiative in collaboration with the California Department of Health Care Services. This ambitious campaign aims to develop a network of care model of healthcare delivery that explicitly links health resources within communities to clinicians screening patients for ACEs. The ACEs Aware Initiative recognizes nature experiences as one of seven "stress busters." Indeed, California boasts many outdoor resources for clinicians to integrate into the network of care. Through a calming effect on the autonomic nervous system, providing a setting for supportive relationships to develop and physical activity to occur, time in nature may help California prevent, heal and treat ACEs and the clinical sequelae. As one of the most common psychiatric disorders in youth, anxiety remains one of the most important sequelae of ACEs. There is a gap in evidence evaluating nature-based programs for child mental health. This study will evaluate BLOOM [Boldly Living outdOOrs for Mental health], a new intervention which is a modified version of an existing nature-based curriculum called SHINE (Stay Healthy In Nature Everyday) curriculum currently in place at UCSF Benioff Children's Hospital Oakland, which takes youth and their families into nature once a month for stress relief. This new intervention mirrors SHINE except that it will be tailored to children ages 9-12 with a history of ACEs and current anxiety. This study will evaluate the benefits of a group intervention model, an independent nature-outing model, and a comparison to a wait-listed control group. Our goal is to provide a scalable model for low-cost mental health care to the California Department of Health Care Services.

Type: Interventional

Start Date: Jul 2023

open study

Improving Adherence to Homework During Therapy
University of South Florida Anxiety Depression Depression/Anxiety
The purpose of this study is to expand Adhere.ly- a simple, HIPAA-compliant, web-based platform to help therapists engage clients in practicing therapeutic skills between sessions (homework) during mental health treatment by conducting a trial comparing standard therapy to therapy enhanced with Adh1 expand

The purpose of this study is to expand Adhere.ly- a simple, HIPAA-compliant, web-based platform to help therapists engage clients in practicing therapeutic skills between sessions (homework) during mental health treatment by conducting a trial comparing standard therapy to therapy enhanced with Adhere.ly.

Type: Interventional

Start Date: Sep 2022

open study

Antidepressant Discontinuation in Treatment Resistant Depression
University of Louisville Treatment Resistant Depression
The purpose of this study is to compare the effects on depressive symptoms of subjects who discontinue serotonergic antidepressants (a certain type of antidepressant, such as Prozac, that works on serotonin receptors in the brain) with the effects on depressive symptoms of subjects who continue to1 expand

The purpose of this study is to compare the effects on depressive symptoms of subjects who discontinue serotonergic antidepressants (a certain type of antidepressant, such as Prozac, that works on serotonin receptors in the brain) with the effects on depressive symptoms of subjects who continue to take serotonergic antidepressants. During this study, subjects will also be presented with the opportunity to undergo genetic testing for the serotonin gene transporter which has a short or long form. This is being done because it has been demonstrated that genetic testing improves outcome while treating treatment-resistant depression.

Type: Interventional

Start Date: Jun 2019

open study

Discovering Factors in the Clinical Study Journey of Patients With OCD
Power Life Sciences Inc. OCD Obsessive-Compulsive Disorder
This research aims to collect comprehensive data on the clinical trial experience of OCD patients. Its goal is to identify the factors that limit patients' ability to join or complete a trial successfully. Clinical trial participation often favors specific demographic groups, and limited research e1 expand

This research aims to collect comprehensive data on the clinical trial experience of OCD patients. Its goal is to identify the factors that limit patients' ability to join or complete a trial successfully. Clinical trial participation often favors specific demographic groups, and limited research exists on the impact of trial attributes on participation. Therefore, this study aims to analyze data from various demographic groups and identify any recurring trends that could provide valuable insights for future OCD patients.

Type: Observational

Start Date: Jun 2024

open study

Fresh RX: NHS 2020
Washington University School of Medicine Premature Birth Birth Weight Post Partum Depression Health Care Utilization Nutrition Deficiency Due to Insufficient Food
This study is an evaluation of the Fresh Rx: Nourishing Healthy Starts program administered by Operation Food Search, a St. Louis-based nonprofit organization. The program provides food and nutrition supports to food insecure pregnant women in conjunction with integrative care services in order to1 expand

This study is an evaluation of the Fresh Rx: Nourishing Healthy Starts program administered by Operation Food Search, a St. Louis-based nonprofit organization. The program provides food and nutrition supports to food insecure pregnant women in conjunction with integrative care services in order to improve health and birth outcomes for both the mother and the child. The purpose of this study is to test the efficacy of this approach through a field experiment, and to assess the extent to which these services can provide cost savings to the healthcare system.

Type: Interventional

Start Date: Aug 2021

open study