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.

Watch this collaborative ADAA and ResearchMatch Webinar “Research Studies and You: Where to Start & What to Ask.”

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


846 matching studies

Sponsor Condition of Interest
Integrated PTSD and Chronic Pain Treatment
Weill Medical College of Cornell University PTSD Chronic Pain
Posttraumatic stress disorder (PTSD) occurs in approximately 7% of adults in the general population. PTSD greatly impacts quality of life and often co-occurs with other conditions such as chronic pain. Individuals with co-morbid PTSD and chronic pain demonstrate higher PTSD symptoms and pain (as we1 expand

Posttraumatic stress disorder (PTSD) occurs in approximately 7% of adults in the general population. PTSD greatly impacts quality of life and often co-occurs with other conditions such as chronic pain. Individuals with co-morbid PTSD and chronic pain demonstrate higher PTSD symptoms and pain (as well as greater anxiety, depression, disability, and opioid use) compared to those with only one of those conditions. Gold standard treatments exist for both PTSD (e.g., Prolonged Exposure; PE) and chronic pain (e.g., Cognitive Behavioral Therapy for Chronic Pain; CBT-CP) and are generally offered sequentially (i.e., one at a time for the condition that is most prominent). Treating these conditions separately may overlook their interconnected nature, which may reduce efficacy and increase dropout. Thus, there is a need for an intervention to target both simultaneously, which may be more effective and efficient than treating conditions sequentially. This is a single-arm pilot study to assess the feasibility and acceptability of an integrated treatment for adults with comorbid PTSD and chronic pain. The intervention consists of 12 90-minute virtual psychotherapy sessions scheduled twice per week. The treatment draws from modules in PE and CBT-CP including psychoeducation, exposure to feared/avoided situations and activities, processing of exposures, behavioral activation, breathing and relaxation techniques, sleep hygiene, symptom monitoring, and structured homework assignments. Baseline and post-treatment assessments will be conducted.

Type: Interventional

Start Date: Dec 2025

open study

Study to Assess the Adverse Events of Oral ABBV-932 in Adult Participants With Depressive Episodes1
AbbVie Bipolar I or II Disorder
Bipolar disorder is a severe chronic mood disorder that affects up to 4% of the adult population in the United States. The purpose of this study is to assess how safe and effective ABBV-932 is in treating participants with depressive episodes associated with bipolar I or II disorder. ABBV-932 is a1 expand

Bipolar disorder is a severe chronic mood disorder that affects up to 4% of the adult population in the United States. The purpose of this study is to assess how safe and effective ABBV-932 is in treating participants with depressive episodes associated with bipolar I or II disorder. ABBV-932 is an investigational drug being developed for the treatment of depressive episodes in adult participants with bipolar I or II disorder. Participants with bipolar I or II disorder who are currently experiencing a depressive episode will enter the study and be treated with open-label ABBV-932. Approximately 200 adult participants with bipolar I or II disorder will be enrolled in approximately 50 sites in the United States and Puerto Rico. Participants will receive oral capsules of ABBV-932 for a 26-week treatment period. The treatment period will be followed by a safety follow-up (SFU) period of 30 days. There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regularly scheduled visits during the study at a hospital or clinic. The effect of the treatment will be checked by medical assessments, blood tests, checking for side effects and completing questionnaires.

Type: Interventional

Start Date: Sep 2025

open study

Pattern Separation in Major Depressive Disorder
Jeffrey Miller Major Depressive Disorder (MDD)
This study seeks to examine the effects of treatment with a selective serotonin reuptake inhibitor (SSRI), escitalopram, a first-line treatment for depression, in combination with placebo or with extended-release memantine, on neuropsychological function, regional brain activity assessed by functio1 expand

This study seeks to examine the effects of treatment with a selective serotonin reuptake inhibitor (SSRI), escitalopram, a first-line treatment for depression, in combination with placebo or with extended-release memantine, on neuropsychological function, regional brain activity assessed by functional magnetic resonance imaging, and depressive symptoms, in participants with Major Depressive Disorder. Escitalopram is administered in an open-label fashion in this study; extended release memantine is administered in a double-blind, randomized, placebo-controlled manner.

Type: Interventional

Start Date: Jun 2026

open study

A Study to Evaluate the Effectiveness of Valbenazine in Adult Participants With Tardive Dyskinesia1
Neurocrine Biosciences Schizophrenia Schizoaffective Disorder Bipolar Disorder Major Depressive Disorder Tardive Dyskinesia
This study will evaluate the efficacy of valbenazine on clinician- and patient-reported outcomes in participants with TD while receiving or after stopping a VMAT2 inhibitor. expand

This study will evaluate the efficacy of valbenazine on clinician- and patient-reported outcomes in participants with TD while receiving or after stopping a VMAT2 inhibitor.

Type: Interventional

Start Date: Aug 2025

open study

Cognitive Processing Therapy (CPT) for Perinatal Posttraumatic Stress Disorder (PTSD)
University of Texas at Austin Posttraumatic Stress Disorder (PTSD) Pregnancy
Pregnant women with a primary diagnosis of posttraumatic stress disorder (PTSD) (PTSD Checklist for DSM-5 (PCL-5) score > 33) will be randomized to receive conventional cognitive processing therapy (CPT) (60-min session once/week for 12 weeks) or massed CPT (mCPT) (an intensive schedule of 12 60-mi1 expand

Pregnant women with a primary diagnosis of posttraumatic stress disorder (PTSD) (PTSD Checklist for DSM-5 (PCL-5) score > 33) will be randomized to receive conventional cognitive processing therapy (CPT) (60-min session once/week for 12 weeks) or massed CPT (mCPT) (an intensive schedule of 12 60-min sessions over 5 days, approximately 2-3 sessions per day) via telemedicine, for treatment of PTSD. The research aims will be three-fold: (1) Evaluate the relative efficacy and tolerability of CPT vs. mCPT for treatment of perinatal PTSD and depression; (2) Determine the effect of CPT upon maternal-infant attachment and interaction; (3) Collect pilot data of obstetric and neonatal outcomes among those receiving the two CPT delivery schedules.

Type: Interventional

Start Date: Aug 2025

open study

Implementing Depression and Adherence Treatment
University of Miami Depression HIV Adherence, Treatment AIDS
The goal of this clinical trial is to compare a core set and enhanced set of implementation strategies in increasing the reach of evidence-based treatments to patients with HIV and depression. The main questions it aims to answer are: What proportion of patients start an evidence-based treatment f1 expand

The goal of this clinical trial is to compare a core set and enhanced set of implementation strategies in increasing the reach of evidence-based treatments to patients with HIV and depression. The main questions it aims to answer are: What proportion of patients start an evidence-based treatment for depression (reach)? What percentage of patients show clinical improvement in depression and what percentage attain viral undetectability within one year (effectiveness)? Researchers will compare high and low reach clinics to further inform tailored implementation strategies for uptake and maintenance. Clinics will be randomized into one of two study arms: core versus enhanced strategies. In both arms, core strategies will be utilized. Enhanced clinics will also receive more resource-intensive training.

Type: Interventional

Start Date: May 2026

open study

A Study to Evaluate the Efficacy and Safety of KarXT for the Treatment of Manic Episodes in Bipolar1
Bristol-Myers Squibb Bipolar-I Disorder With Mania or Mania With Mixed Features
The purpose of this study is to evaluate the efficacy and safety of KarXT for the treatment of manic episodes in Bipolar-I Disorder expand

The purpose of this study is to evaluate the efficacy and safety of KarXT for the treatment of manic episodes in Bipolar-I Disorder

Type: Interventional

Start Date: Jun 2025

open study

Leveraging Adult Protective Service Interaction to Offer Evidence-Based Treatment for Depression in1
The University of Texas Health Science Center, Houston Depression in Old Age
The purpose of this study is to test the feasibility and acceptability of an evidence-based treatment for depression delivered over an ipad, computer, or smartphone can help Adult Protective Services (APS) clients with their activities of daily living to evaluate whether reductions on measures of d1 expand

The purpose of this study is to test the feasibility and acceptability of an evidence-based treatment for depression delivered over an ipad, computer, or smartphone can help Adult Protective Services (APS) clients with their activities of daily living to evaluate whether reductions on measures of depression and apathy (a) mediate reduced Elder Neglect/Self Neglect (EN/SN) behaviors; and (b) whether secondary posited mediating mechanisms are also active in impacting depression and apathy

Type: Interventional

Start Date: May 2026

open study

Home-Based Transcranial Direct Current Stimulation (tDCS) for Depression in Multiple Sclerosis (MS)
NYU Langone Health Multiple Sclerosis Depression
This project is a double-blind, sham-controlled, parallel-arm, randomized controlled trial. We will recruit n=170 people living with MS, who are experiencing an episode of depression in the context of a major depressive episode (MDE). Using our remotely supervised (RS) tDCS protocol, enrolled parti1 expand

This project is a double-blind, sham-controlled, parallel-arm, randomized controlled trial. We will recruit n=170 people living with MS, who are experiencing an episode of depression in the context of a major depressive episode (MDE). Using our remotely supervised (RS) tDCS protocol, enrolled participants will complete 30 days of 30-minute tDCS (2.0, DLPFC left anodal) while listening to mindfulness meditation. Over the course of the study, participants will complete assessments of depression and MS symptoms. Participants will be randomized 1:1 active:sham tDCS.

Type: Interventional

Start Date: Aug 2025

open study

Get ActivE Study for At-risk Youth
University of Pittsburgh Anhedonia Depression and Suicide Ideation
The study will adapt and deploy a digital Behavioral Activation app with mobile sensing, supported by health coaches, that encourages youth to engage in positive activities. The study has the potential to offer a low-cost and scalable behavioral intervention that may decrease risk of suicide among1 expand

The study will adapt and deploy a digital Behavioral Activation app with mobile sensing, supported by health coaches, that encourages youth to engage in positive activities. The study has the potential to offer a low-cost and scalable behavioral intervention that may decrease risk of suicide among at-risk youth. This research will examine specifically whether an intervention involving an app called Vira, combined with health coaching (GET ActivE) can improve enjoyment for teens coping with depression. Research participants will be randomly assigned to one of two study intervention. One study intervention involves a) downloading an app called Vira and engaging by responding to a daily question, and b) participating in a conversation via text, phone, or messages through an appt with a health coach. The health coach will use the Vira app and principles from evidence-based therapy and behavior change to provide users with insights to sustain well-being and better manage risk factors for suicidal thoughts and behaviors such as depressed mood and behavioral withdrawal. The second study intervention involves downloading an app called EARS and responding to a daily question.

Type: Interventional

Start Date: Mar 2025

open study

"A Study of a Deuterated Psilocin Analog (CYB003) in Humans With Major Depressive Disorder"
Cybin IRL Limited Major Depressive Disorder
The purpose of this study is to examine the efficacy, safety, and tolerability of CYB003 compared to matching placebo as adjunctive treatment in participants with MDD. expand

The purpose of this study is to examine the efficacy, safety, and tolerability of CYB003 compared to matching placebo as adjunctive treatment in participants with MDD.

Type: Interventional

Start Date: Dec 2024

open study

Equipping Patients Using Interventions for Pain and Depression
Indiana University Chronic Pain Musculoskeletal Pain Depression Health Equity
This project is part of the NIH Helping to End Addiction Long-term (HEAL) initiative (https://heal.nih.gov/). This randomized controlled trial (RCT) is phase 2 of a two-phase, 5-year project with the overarching goal of testing a decision aid (DA)/coaching intervention, tailored to Black patients w1 expand

This project is part of the NIH Helping to End Addiction Long-term (HEAL) initiative (https://heal.nih.gov/). This randomized controlled trial (RCT) is phase 2 of a two-phase, 5-year project with the overarching goal of testing a decision aid (DA)/coaching intervention, tailored to Black patients with comorbid chronic pain and depression, to encourage use of and adherence to nonpharmacological pain treatments (NPTs). This 2-arm trial will randomize 304 patients with comorbid chronic musculoskeletal pain and depression in primary care from an urban safety-net health system (Eskenazi). After the baseline assessment, patients randomized to the intervention will be asked to participate in 4 coaching sessions over approximately 12 weeks. Sessions will use Motivational Interviewing principles to foster openness to NPTs and self-efficacy by helping patients identify their goals and priorities, understand their NPT options, prepare them to discuss and choose options with their primary care providers (PCPs), and reinforce these choices to foster maintenance of these changes. DA contents will be integrated into these sessions, which will facilitate discussion of these options with their PCP. The first 3 sessions take place prior to the patient's next scheduled PCP visit; the final session occurs after this visit. Assessments will be conducted at baseline, 3 months (i.e., after completing the final coaching session), and 6 months. Patients randomized to the wait-list control group will receive usual care (in addition to study assessments at baseline, 3 months, and 6 months). After completing the final assessment, they will then be given the DA and offered a 20-minute coaching session to walk them through it.

Type: Interventional

Start Date: Aug 2024

open study

Effects of Walking in Greenspace and the Built Environment in Adults With Prediabetes: A Randomized1
University of Minnesota PreDiabetes Heart Rate Variability (HRV) Stress and Anxiety Stress Biomarkers
The goal of this randomized crossover trial is to compare the differences in psychological and physiological effects of walking in two different outdoor environments (urban/suburban commercial environments vs. urban/suburban nature areas/preserves) in adults with prediabetes. The main questions it1 expand

The goal of this randomized crossover trial is to compare the differences in psychological and physiological effects of walking in two different outdoor environments (urban/suburban commercial environments vs. urban/suburban nature areas/preserves) in adults with prediabetes. The main questions it aims to answer are: - Do psychological measures of stress, anxiety, and affect improve more in one type of outdoor environment over the other? - Do physiological measures of stress improve more in one type of outdoor environment over the other? As this is a crossover trial, participants will serve as their own controls. Researchers will compare both the psychological and physiological effects walking in the two types of outdoor environments. Participants will: - Walk 150-minutes per week for six weeks in each of the two outdoor conditions. - Visit the clinic four times, including before and after each six-week walking period. - Collect saliva samples immediately proceeding or following the four clinic visits. - Return to their pre-study level of physical activity for a 5-week washout period between each of the two walking interventions.

Type: Interventional

Start Date: Jun 2024

open study

CAPABLE Transplant
Johns Hopkins University Quality of Life Depression End Stage Renal Disease Disability Physical
The purpose of this mixed methods study is to adapt CAPABLE as CAPABLE Transplant to accomplish two things: 1) To resolve barriers to being classified as active on the Kidney Transplant (KT) waitlist, 2) as a surgical prehabilitation intervention targeting the pre-frail/ frail KT waitlist populatio1 expand

The purpose of this mixed methods study is to adapt CAPABLE as CAPABLE Transplant to accomplish two things: 1) To resolve barriers to being classified as active on the Kidney Transplant (KT) waitlist, 2) as a surgical prehabilitation intervention targeting the pre-frail/ frail KT waitlist population. It consists of two phases- an open label pilot and a randomized waitlist control trial, and 3) pilot test the feasibility and acceptability for CAPABLE Transplant in symptom and waitlist specific metrics amongst low-income active kidney transplant waitlist candidates.

Type: Interventional

Start Date: Jan 2025

open study

Type I Hybrid Effectiveness-Implementation Trial of Primary Care Brief Mindfulness Training for Vet1
VA Office of Research and Development Post Traumatic Stress Disorder (PTSD) Depression Anxiety
The VA wants to understand what type of integrative and whole health approaches are helpful for Veterans. The study is comparing two primary care based mental health treatments, a mindfulness class that teaches mindfulness meditation and a problem-solving class that teaches problem-solving skills a1 expand

The VA wants to understand what type of integrative and whole health approaches are helpful for Veterans. The study is comparing two primary care based mental health treatments, a mindfulness class that teaches mindfulness meditation and a problem-solving class that teaches problem-solving skills and how to build resilience, for Veterans who are experiencing symptoms of anxiety, depression, and/or PTSD. The goal of the study is to understand if the classes reduce symptoms of anxiety, depression, and/or PTSD and increase overall functioning.

Type: Interventional

Start Date: Aug 2024

open study

Depression and Driving
Washington University School of Medicine Depression Drive
This project will assess how depression, preclinical AD, and antidepressants affect driving behavior in cognitively normal older adults (65 years). expand

This project will assess how depression, preclinical AD, and antidepressants affect driving behavior in cognitively normal older adults (65 years).

Type: Observational

Start Date: Jun 2021

open study

Behavioral Exposure for Introceptive Tolerance RCT
Rutgers, The State University of New Jersey Exercise Sensitivity Introceptive Exposure Anxiety Cardiac Rehabilitation
Behavioral Exposure for Interoceptive Tolerance (BE-FIT) is a mechanism-informed behavioral intervention to target exercise anxiety. The three primary components of BE-FIT include: (1) exposure to feared bodily sensations and exercise; (2) prevention of safety behavior use before/during/after exerc1 expand

Behavioral Exposure for Interoceptive Tolerance (BE-FIT) is a mechanism-informed behavioral intervention to target exercise anxiety. The three primary components of BE-FIT include: (1) exposure to feared bodily sensations and exercise; (2) prevention of safety behavior use before/during/after exercise, and (3) use of a wrist-worn activity monitor for physical activity (PA) feedback and activity goal setting. Evidence from the investigators' Stage I trial indicated that BE-FIT is feasible, acceptable, and safe and produced reductions in exercise anxiety and increased exercise outcomes (short-term moderate-to-vigorous intensity physical activity and steps/day). The investigators' present aim is to conduct a Stage II randomized-controlled trial to further evaluate the efficacy of BE-FIT in decreasing exercise anxiety in cardiac rehabilitation (CR) patients and examine whether changes in this target yield successive changes in exercise adherence outcomes.

Type: Interventional

Start Date: May 2022

open study

Exercise Training for Managing Major Depressive Disorder in Multiple Sclerosis
University of Illinois at Chicago Multiple Sclerosis Major Depressive Disorder
The purpose of this research is to examine the effects of two different exercise training regimens for managing depression and improving other health indicators among persons with multiple sclerosis (MS). The project will enroll persons with MS and major depressive disorder (MDD) between 18 and 641 expand

The purpose of this research is to examine the effects of two different exercise training regimens for managing depression and improving other health indicators among persons with multiple sclerosis (MS). The project will enroll persons with MS and major depressive disorder (MDD) between 18 and 64 years of age. The investigators will enroll a total of 146 participants. This is a Phase-II trial that compares the efficacy of an exercise training program (POWER-MS) compared with a stretching program (FLEX-MS) for immediate and sustained reductions in the severity of depression among persons with MS who have MDD.

Type: Interventional

Start Date: Apr 2023

open study

Effects of Transcutaneous Vagal Nerve Stimulation on Post-Surgical Return to Consciousness, Deliriu1
Northwestern University Post Operative Delirium Cognitive Impairment Vagus Nerve Stimulation Depression
This study will examine whether noninvasive, transcutaneous vagal nerve stimulation (tcVNS) can help restore consciousness in patients in the operating room and the Post Anesthesia Care Unit (PACU). The study will also investigate if tcVNS can expedite discharge from the PACU and examine whether tc1 expand

This study will examine whether noninvasive, transcutaneous vagal nerve stimulation (tcVNS) can help restore consciousness in patients in the operating room and the Post Anesthesia Care Unit (PACU). The study will also investigate if tcVNS can expedite discharge from the PACU and examine whether tcVNS administerd in the PACU helps reduce delirium and depression after surgery. The study will also evaluate whether tcVNS speeds cognitive recovery from emergence of anesthesia and surgery.

Type: Interventional

Start Date: Apr 2026

open study

Multicenter Study to Assess the Efficacy and Safety of LB-102 in the Treatment of Adult Patients Wi1
LB Pharmaceuticals Inc. Bipolar I Disorder
Phase II study for patients with Bipolar 1 Disorder experiencing major depressive episode. Patient eligible for enrollment will be randomized (like flipping a coin) to either active drug (LB-102 or placebo). Treatment is for 6 weeks. expand

Phase II study for patients with Bipolar 1 Disorder experiencing major depressive episode. Patient eligible for enrollment will be randomized (like flipping a coin) to either active drug (LB-102 or placebo). Treatment is for 6 weeks.

Type: Interventional

Start Date: Jan 2026

open study

TF-CBT for Autistic Youth Pilot Implementation - Open Pilot
Dartmouth-Hitchcock Medical Center Autism Spectrum Disorder PTSD and Trauma-related Symptoms Autism Trauma and Stressor Related Disorders Mental Health Services
Compared to the general population, autistic youth are at increased risk for both exposure to potentially traumatic events and trauma-related symptoms following trauma exposure. Autistic people identify approaches to effectively addressing trauma as a top mental health research priority, yet provid1 expand

Compared to the general population, autistic youth are at increased risk for both exposure to potentially traumatic events and trauma-related symptoms following trauma exposure. Autistic people identify approaches to effectively addressing trauma as a top mental health research priority, yet providers in community settings often report inadequate training in trauma treatment. The purpose of this study is to conduct an open pilot to evaluate the feasibility and acceptability of an evidence-based intervention for youth affected by trauma, Trauma-Focused Cognitive Behavioral Therapy (TF-CBT), that has been modified for autistic youth served in Community Mental Health Centers.

Type: Interventional

Start Date: May 2026

open study

Cervical Plexus Hydrodissection With D5W Versus NS for Treatment-Resistant PTSD
Dr. Dean Reeves Clinic PTSD
PTSD is a chronic mental health condition that drastically reduces an individual's quality of life Dextrose injection with a small needle has been used for chronic pain patients and observational results have shown it to be effective in reducing anxiety, brain fog, and depression in patients with P1 expand

PTSD is a chronic mental health condition that drastically reduces an individual's quality of life Dextrose injection with a small needle has been used for chronic pain patients and observational results have shown it to be effective in reducing anxiety, brain fog, and depression in patients with PTSD. This randomized trial will compare dextrose injection with an injection control of normal saline (NS)

Type: Interventional

Start Date: May 2026

open study

On-Trac: An Online Intervention for Cancer Survivors Managing Anxiety
Dana-Farber Cancer Institute Cancer Survivorship Anxiety
This study is evaluating On-Trac (Online Training After Cancer), an online educational intervention to teach adult cancer survivors strategies to address anxiety based on Cognitive-Behavioral Therapy (CBT) and Acceptance Commitment Therapy (ACT) The name of the study intervention is Online Trainin1 expand

This study is evaluating On-Trac (Online Training After Cancer), an online educational intervention to teach adult cancer survivors strategies to address anxiety based on Cognitive-Behavioral Therapy (CBT) and Acceptance Commitment Therapy (ACT) The name of the study intervention is Online Training After Cancer (On-Trac)

Type: Interventional

Start Date: Mar 2026

open study

Accelerated High-Dose tDCS for Depression
Medical University of South Carolina Major Depression Major Depression Disorders
In this study, investigators are testing whether a higher dose of a non-invasive brain stimulation technique, called transcranial direct current stimulation (tDCS), can be safely used in people with depression. Participants will come to the Brain Stimulation Lab and receive mild electrical stimulat1 expand

In this study, investigators are testing whether a higher dose of a non-invasive brain stimulation technique, called transcranial direct current stimulation (tDCS), can be safely used in people with depression. Participants will come to the Brain Stimulation Lab and receive mild electrical stimulation through electrodes placed on their scalp. The study begins with a safety run-in, where the first few participants will receive stimulation at gradually increasing levels (2, 4, and 6 milliamps) while being closely monitored. If no serious side effects are found, later participants will receive repeated 6 milliamp sessions for 5 days total. Investigators will check skin comfort, mood, and overall tolerability after each session.

Type: Interventional

Start Date: Dec 2025

open study

Evaluating the Impact of Psychotherapeutic Advertising Claims on Cannabis Purchasing
Trustees of Dartmouth College Anxiety Depression Cannabis Use
In the U.S., legal cannabis is frequently advertised as an effective treatment for mental health problems such as anxiety and depression-particularly online. States that have legalized cannabis have not implemented regulations to address this type of advertising. This project aims to investigate th1 expand

In the U.S., legal cannabis is frequently advertised as an effective treatment for mental health problems such as anxiety and depression-particularly online. States that have legalized cannabis have not implemented regulations to address this type of advertising. This project aims to investigate the influence of psychotherapeutic advertising claims (PAC) and mental health warning labels (WL) on online cannabis purchasing behaviors among light-to-moderate cannabis users with symptoms of depression and/or anxiety. The specific aims are to determine whether PAC increases cannabis purchasing intentions and whether a mental health WL can mitigate this effect. A realistic online cannabis shopping experience will be simulated using the digital Platform for Online Evaluation of Marijuana Marketing and Sales (POEMMS). The study will employ a between-subjects experimental design by randomizing 2,000 participants to one of four online stores that vary in PAC and WL content: (1) a control claims (CC)-only store, (2) a PAC store, (3) a WL store, and (4) a PAC + WL store. Participants will browse and select items as if making real purchases. Analyses will examine three primary outcomes to determine the influence of PAC and WL on purchasing behaviors: (1) total milligrams of THC purchased, (2) average potency (%THC) of products, and (3) overall number of products purchased. The long-term objective is to inform evidence-based cannabis policy and regulatory strategies by understanding the impact of cannabis marketing on vulnerable populations. This research is relevant to public health by addressing the potential risks associated with misleading cannabis marketing, which may lead to increased use and exacerbation of mental health symptoms among individuals with depression and anxiety. The project leverages a multidisciplinary team with expertise in addiction, mental health, epidemiology, and digital health technology. The findings have the potential to inform the development of targeted interventions and policies to reduce harms associated with cannabis advertising-ultimately contributing to better health outcomes and more effective regulation.

Type: Interventional

Start Date: Apr 2026

open study