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                    Major Depressive Disorder Clinical Trials
A listing of 127  Major Depressive Disorder  clinical trials  actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
            1 - 12 of 127
        
                There are currently 127 active clinical trials seeking participants for Major Depressive Disorder research studies. The states with the highest number of trials for Major Depressive Disorder participants are California, Florida, Texas and New York.
            
                Featured Trial
                
                Healthy Participants Needed (Colonoscopy + Cancer Screening)
            
        Recruiting
            
        Earn $325 - $475 in electronic payment card compensation for your time and effort by participating in a clinical study to develop a blood test that may one day help screen for colon cancer. Take a quick quiz to see if you qualify.
    
    
                            Conditions: 
                                    
        
            
                        Healthy
                    
                                    
                        Healthy Volunteers
                    
                                    
                        Healthy Subjects
                    
                                    
                        Healthy Volunteer
                    
                                    
                        Healthy Participants
                    
                                    Featured Offer
                
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        Recruiting
            
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                            Conditions: 
                                    
        
            
                        Overweight
                    
                                    
                        Overweight and Obesity
                    
                                    
                        Obesity
                    
                                    
                        Weight Loss
                    
                                    
                        Morbid Obesity
                    
                                    Featured Trial
                
                Get Your Illinois Medicinal Marijuana Card (10% Off)
            
        Recruiting
            
        Elevate Holistics connects patients with licensed physicians who guide them through their state’s eligibility process for qualifying conditions such as chronic pain, anxiety disorders, or sleep challenges. Compassionate, compliant care every step of the way.
Use code PACSHORE10 for 10% off your consultation fee.
For adults 21+ or qualifying patients under state law. Availability varies by state.
    Use code PACSHORE10 for 10% off your consultation fee.
For adults 21+ or qualifying patients under state law. Availability varies by state.
                            Conditions: 
                                    
        
            
                        Anxiety
                    
                                    
                        Depression
                    
                                    
                        Major Depressive Disorder
                    
                                    
                        Pain
                    
                                    
                        Chronic Pain
                    
                                    Featured Trial
                
                Get Your Iowa Medicinal Marijuana Card (10% Off)
            
        Recruiting
            
        Elevate Holistics connects patients with licensed physicians who guide them through their state’s eligibility process for qualifying conditions such as chronic pain, anxiety disorders, or sleep challenges. Compassionate, compliant care every step of the way.
Use code PACSHORE10 for 10% off your consultation fee.
For adults 21+ or qualifying patients under state law. Availability varies by state.
    Use code PACSHORE10 for 10% off your consultation fee.
For adults 21+ or qualifying patients under state law. Availability varies by state.
                            Conditions: 
                                    
        
            
                        Anxiety
                    
                                    
                        Depression
                    
                                    
                        Major Depressive Disorder
                    
                                    
                        Pain
                    
                                    
                        Chronic Pain
                    
                                    
                
                                    Mechanisms of Rumination Change in Adolescent Depression
                                
            
            
        Recruiting
                            
            
                This study will evaluate whether a newer treatment, rumination-focused cognitive behavioral treatment, which includes mindfulness and can be used to reduce ruminative habits, change ways in which key brain regions interact with each other (e.g.., often called connectivity), and whether these changes in habits and brain connectivity can reduce the risk for recurrence of depression in the next two years.             
        
        
    Gender:
                ALL
            Ages:
                Between 14 years and 17 years
            Trial Updated:
                08/06/2025
            
            Locations: Nationwide Children's Hospital, Columbus, Ohio  +2 locations         
        
        
            Conditions: Major Depressive Disorder, Mood Disorders
        
            
        
    
                
                                    Using mHealth to Improve Adherence and Reduce Blood Pressure in Individuals With Hypertension and Mood Disorders
                                
            
            
        Recruiting
                            
            
                This proposed 2-stage randomized controlled trial (RCT) will evaluate a personalized patient-centered adherence intervention iTAB-CV + Self-Monitoring (iTAB-CV + SM) vs. Self-Monitoring (SM) alone in poorly adherent hypertensive persons with BD or MDD. This practical, technology-facilitated intervention has potential to improve adherence to antihypertensive medication and reduce SBP among high-risk individuals. The intervention is suitable for primary care or mental health settings and has poten...  Read More             
        
        
    Gender:
                ALL
            Ages:
                Between 21 years and 80 years
            Trial Updated:
                05/22/2025
            
            Locations: Case Western Reserve University, Cleveland, Ohio         
        
        
            Conditions: Bipolar Disorder, Non-Adherence, Medication, Hypertension, Major Depressive Disorder
        
            
        
    
                
                                    Concurrent fMRI-guided rTMS and Cognitive Therapy for the Treatment of Major Depressive Episodes
                                
            
            
        Recruiting
                            
            
                Background:
Repetitive transcranial magnetic stimulation (rTMS) is a treatment for depression. It stimulates the brain. Researchers want to see if using magnetic resonance imaging (MRI) scans helps locate the best area for rTMS in each person. They also want to find other ways to make it more effective.
Objective:
To study the effects of combining MRI- guided transcranial magnetic stimulation (TMS) and talk therapy on the brain in people with depression.
Eligibility:
Adults ages 18-75 with...  Read More             
        
        
    Gender:
                ALL
            Ages:
                Between 18 years and 75 years
            Trial Updated:
                08/20/2025
            
            Locations: National Institutes of Health Clinical Center, Bethesda, Maryland         
        
        
            Conditions: Major Depressive Disorder
        
            
        
    
                
                                    Defining Neurobiological Links Between Substance Use and Mental Illness
                                
            
            
        Recruiting
                            
            
                Background:
Nicotine dependence leads to about 480,000 deaths every year in the United States. People with major depressive disorder (MDD) are twice as likely to use nicotine compared to the general population. They have greater withdrawal symptoms and are more likely to relapse after quitting compared with smokers without MDD. More research is needed on how nicotine affects brain function in those with MDD.
Objective:
To understand how nicotine affects symptoms of depression and related brai...  Read More             
        
        
    Gender:
                ALL
            Ages:
                Between 18 years and 60 years
            Trial Updated:
                08/20/2025
            
            Locations: National Institute on Drug Abuse, Baltimore, Maryland         
        
        
            Conditions: Major Depressive Disorder, Substance Use Disorder, Normal Physiology
        
            
        
    
                
                                    Transcranial Electric Stimulation Therapy (TEST) for Treatment Resistant Depression (TRD)
                                
            
            
        Recruiting
                            
            
                Background:
People with TRD are often helped by electroconvulsive therapy (ECT). But ECT can affect memory and thinking. Researchers want to study a treatment called TEST that uses less electricity.
Objective:
To study the safety and feasibility of TEST and assess its antidepressant effects.
Eligibility:
Adults aged 25-64 with major depression that has not been relieved by current treatments.
Design:
Participants will be admitted to the NIH Clinical Center for 5 18 weeks over 2 3 treatmen...  Read More             
        
        
    Gender:
                ALL
            Ages:
                Between 25 years and 64 years
            Trial Updated:
                08/19/2025
            
            Locations: National Institutes of Health Clinical Center, Bethesda, Maryland         
        
        
            Conditions: Major Depressive Disorder, Bipolar Disorder, Unipolar Major Depression
        
            
        
    
                
                                    Network Neurofeedback Using 7-Tesla MRI to Reduce Rumination Levels in Depression
                                
            
            
        Recruiting
                            
            
                Patients with major depressive disorder (MDD) exhibit increased levels of rumination (i.e. repetitive thinking and focus on negative mood states) which have been found to increase the risk of depressive relapse. The ability to reduce rumination levels among these patients is greatly needed. Rumination is known to be associated with the default mode network (DMN) region activity. Implementing the Dependency Network Analysis (DEPNA), a recently developed method by the research team to quantify the...  Read More             
        
        
    Gender:
                ALL
            Ages:
                Between 18 years and 65 years
            Trial Updated:
                08/15/2025
            
            Locations: Icahn School Of Medicine at Mount Sinai, New York City, New York         
        
        
            Conditions: Major Depressive Disorder
        
            
        
    
                
                                    Natural History of Depression, Bipolar Disorder and Suicide Risk
                                
            
            
        Recruiting
                            
            
                Mood disorders, such as depression and bipolar disorder, are difficult to treat. One reason is that there are no objective ways to measure how these disorders affect the body and respond to different treatments. In this study, researchers want to perform tests on people undergoing clinical care for mood disorders. The purpose is to understand the experience of receiving treatment for depression, bipolar disorder, and suicide risk. We also hope that this study will help us to predict which medica...  Read More             
        
        
    Gender:
                ALL
            Ages:
                Between 18 years and 120 years
            Trial Updated:
                08/15/2025
            
            Locations: National Institutes of Health Clinical Center, Bethesda, Maryland         
        
        
            Conditions: Behavioral Symptoms, Suicide, Self-Injurious Behavior, Sensory System Agents, Analgesics, Peripheral Nervous System Agents, Physiological Effects of Drugs, Anesthetics, Dissociative, Anesthetics, General, Anesthetics, Central Nervous System Depressants, Excitatory Amino Acid Antagonists, Excitatory Amino Acid Agents, Neurotransmitter Agents, Molecular Mechanisms of Pharmacological Action, Ketamine, Depression, Unipolar, Depressive Symptoms, Treatment Resistant Depression, Major Depressive Disorder, Depression, Bipolar
        
            
        
    
                
                                    A Phase 3 Trial of MM120 for Major Depressive Disorder (Emerge)
                                
            
            
        Recruiting
                            
            
                A Phase 3 Double-blind, Placebo-controlled Study (Part A) with an Open-label Extension (Part B) Evaluating MM120 Compared to Placebo in Major Depressive Disorder - Emerge             
        
        
    Gender:
                ALL
            Ages:
                Between 18 years and 74 years
            Trial Updated:
                08/15/2025
            
            Locations: Preferred Research Partner, Fayetteville, Arkansas  +28 locations         
        
        
            Conditions: Major Depressive Disorder
        
            
        
    
                
                                    Psilocybin for Treatment-Resistant Depression
                                
            
            
        Recruiting
                            
            
                The purpose of this study is to evaluate the efficacy of psilocybin on the symptom of anhedonia in individuals with treatment-resistant major depressive disorder.             
        
        
    Gender:
                ALL
            Ages:
                Between 21 years and 75 years
            Trial Updated:
                08/15/2025
            
            Locations: University of Colorado Anschutz Medical Campus, Aurora, Colorado         
        
        
            Conditions: Major Depressive Disorder, Anhedonia, Treatment Resistant Depression
        
            
        
    
                
                                    Neuropharmacologic Imaging and Biomarker Assessments of Response to Acute and Repeated-Dosed Ketamine Infusions in Major Depressive Disorder
                                
            
            
        Recruiting
                            
            
                Background:
Most medications that treat depression take weeks or months to work. Researchers want to develop fast-acting treatments. One dose of ketamine has a rapid antidepressant effect. For most people, this lasts a week or less. Repeated doses of ketamine may help maintain this effect.
Objective:
Main Study: To study the effects of ketamine in treating depression.
Ketamine Metabolites Substudy: To study how ketamine effects brain chemistry.
To study how ketamine effects the brain. This...  Read More             
        
        
    Gender:
                ALL
            Ages:
                Between 18 years and 65 years
            Trial Updated:
                08/13/2025
            
            Locations: National Institutes of Health Clinical Center, Bethesda, Maryland         
        
        
            
        
    
                
                                    A Randomized Study of Azetukalner Versus Placebo in Major Depressive Disorder (X-NOVA3)
                                
            
            
        Recruiting
                            
            
                X-NOVA3 is a Phase 3, multicenter, randomized, double-blind, placebo-controlled study to evaluate the clinical efficacy, safety, and tolerability of azetukalner as a monotherapy in adult participants diagnosed with Major Depressive Disorder (MDD)             
        
        
    Gender:
                ALL
            Ages:
                Between 18 years and 74 years
            Trial Updated:
                08/12/2025
            
            Locations: California Neuroscience Research, Sherman Oaks, California  +2 locations         
        
        
            Conditions: Major Depressive Disorder
        
            
        
    
                
                                    Feasibility Pilot of Accelerated Stimulation With TMS for Treatment of Major Depressive Disorder (FAST-MDD)
                                
            
            
        Recruiting
                            
            
                This is a mixed-methods study that includes three steps. The first is a focus group to collect opinions and feedback about implementation of aTMS among clinicians, technicians, nurses, and other clinical staff at the St. Louis Park (SLP) clinic who are experienced with delivering TMS. The second is the delivery of a set of questionnaires delivered to TMS patients at the SLP clinic who are awaiting the start of their TMS series. The third is the delivery of aTMS utilizing the MagVenture TMS devic...  Read More             
        
        
    Gender:
                ALL
            Ages:
                Between 18 years and 70 years
            Trial Updated:
                08/11/2025
            
            Locations: University of Minnesota, Minneapolis, Minnesota         
        
        
            Conditions: Major Depressive Disorder
        
            
        
    1 - 12 of 127
            