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Clinical Research Directory

Browse clinical research sites, groups, and studies.

97 clinical studies listed.

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Depressive Disorder

Tundra lists 97 Depressive Disorder clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.

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NOT YET RECRUITING

NCT07512284

Mindfulness Engaged Neurostimulation for Depression (MEND II)

Repetitive Transcranial Magnetic stimulation (rTMS) is an FDA-approved therapy for treatment resistant depression (TRD) that involves brief magnetic stimulation pulses on the dorsolateral prefrontal cortex (DLPFC) brain region. But studies of rTMS alone show remission rates of \~30%. Additionally, rTMS has not been shown to improve cognitive functioning that may be an independent factor predicting treatment success. This study will develop a novel multimodal treatment, which combines intermittent theta burst stimulation (iTBS) - a type of rTMS with digital mindfulness training to engage brain plasticity, enhance cognition and alleviate depression symptoms in individuals with TRD.

Gender: All

Ages: 18 Years - 65 Years

Updated: 2026-04-06

Depression
Treatment Resistant Depression
Major Depressive Disorder
+2
RECRUITING

NCT07369752

Enhancing Brain And Mental Health Through Breathing Practice

The purpose of this study is to evaluate the feasibility of a structured breathing intervention in rural and non-rural adolescents diagnosed with anxiety and depression, recruited from outpatient pediatric and child/adolescent psychiatry clinics.

Gender: All

Ages: 12 Years - 17 Years

Updated: 2026-04-03

2 states

Depressive Disorder
Anxiety
Adolescent
RECRUITING

NCT06143293

RESEARCH EVALUATING VAGAL EXCITATION AND ANATOMICAL LINKS

The acute and chronic effects of VNS stimulation on various on the autonomic nervous, cardiovascular, immune, and metabolic systems will be compared from noninvasive and minimally invasive physiological recordings and blood draws at various time points throughout the study. These interventions and assessments will be performed in individuals 18 years of age and older who are implanted with a VNS device, which consists of patients who have been diagnosed with drug resistant epilepsy or major depressive disorder. The REVEAL study is not a treatment study; its primary objective is to scientifically investigate the contributing roles of efferent versus afferent vagus nerve modulation of multiple peripheral organs and their dependence on stimulation parameters, in which participants are those who have been implanted with a VNS device be receive standard of care treatment for their epilepsy or depressive disorder.

Gender: All

Ages: 18 Years - Any

Updated: 2026-04-03

6 states

Epilepsy
Depressive Disorder
ACTIVE NOT RECRUITING

NCT06399406

Mindfulness Engaged Neurostimulation for Depression

Repetitive Transcranial Magnetic stimulation (rTMS) is an FDA-approved therapy for treatment resistant depression (TRD) that involves brief magnetic stimulation pulses on the dorsolateral prefrontal cortex (DLPFC) brain region. But studies of rTMS alone show remission rates of \~30%. Additionally, rTMS has not been shown to improve cognitive functioning that may be an independent factor predicting treatment success. This study will develop a novel multimodal treatment, which combines intermittent theta burst stimulation (iTBS) - a type of rTMS with digital mindfulness training to engage brain plasticity, enhance cognition and alleviate depression symptoms in individuals with TRD.

Gender: All

Ages: 18 Years - 65 Years

Updated: 2026-03-31

1 state

Depression
Treatment Resistant Depression
Major Depressive Disorder
+1
RECRUITING

NCT06072898

A Randomized Neuroimaging Trial of Psilocybin in Depression

The goal of this neuroimaging clinical trial is to test whether psilocybin produces significant immediate changes in functional brain activity in networks associated with mood regulation and depression compared to placebo in patients with depression. The trial aims to determine if psilocybin: 1. Changes connectivity within brain networks associated with mood and depression 2. Changes blood flow in brain regions associated with mood and depression Participants will be attend two treatment sessions where they receive an oral medication and supportive psychotherapy. At each session, participants will undergo an MRI scan after drug administration but prior to psychotherapy. Participants will be randomly to assigned to one of two groups that will receive, 1) microcrystalline cellulose (25mg) at the first visit and psilocybin (25mg) at the second visit, or 2) psilocybin (25mg) at both visits, respectively. Differences between groups will be compared to understand what effects on brain activity are specific to psilocybin.

Gender: All

Ages: 18 Years - 64 Years

Updated: 2026-03-30

1 state

Depressive Disorder
Major Depressive Disorder
RECRUITING

NCT06898606

Psilocybe Cubensis Mushrooms With or Without Fluoxetine for Refractory Depression

This Phase 2a pilot, exploratory, randomized, double-blind, placebo-controlled, parallel-group trial will estimate whether concurrent fluoxetine alters the antidepressant effect, acute psychedelic experience, or safety of a psychedelic-assisted psychotherapy session in adults with treatment-resistant major depressive disorder (TRD). Eligible participants (ages 25-64) have DSM-5-TR MDD, moderate-severe, MADRS ≥20, and partial response in the current episode (≥1 adequate antidepressant trial of 6-12 weeks with \<50% symptom reduction). All participants receive one dosing session with 3g of standardized Psilocybe mushrooms - with batch assay (e.g., LC-MS) to determine the amount of psilocybin and psilocin present in the sample - with manualized preparation and integration. Participants are randomized 1:1 to fluoxetine 20 mg/day or matching placebo for 4 weeks, started 2 weeks before the psychedelic session and continued 2 weeks after. Masking is quadruple (participant, care provider, investigator, outcomes assessor). The primary outcome is change in MADRS from Baseline to Week 4, assessed by a remote, blinded rater. Key secondary outcomes include response (≥50% MADRS reduction) and remission (MADRS ≤10) at Week 4, and durability at Week 6. Exploratory outcomes assess the psychedelic experience (5D-ASC, SOCQ), psychological flexibility (AAQ-10), and safety/tolerability (UKU and adverse events). Findings will be interpreted as estimates with 95% confidence intervals to inform the design of a subsequent confirmatory trial.

Gender: All

Ages: 25 Years - 65 Years

Updated: 2026-03-27

1 state

Depressive Disorder
RECRUITING

NCT07458100

The STEP-MIED Trial: Digital Stepped-Care for Emotional Disorders

The goal of this clinical trial is to evaluate the effectiveness and cost-effectiveness of a digital mindfulness-based intervention in adults (aged 18-65) diagnosed with emotional disorders like depression or anxiety. The main questions it aims to answer are: * Does adding a digital mindfulness intervention to usual care help people recover from emotional disorders faster and more sustainably over two years? * Is this combined approach more cost-effective than usual care alone? Researchers will compare the group receiving the digital mindfulness intervention plus their usual treatment to the group receiving only their usual treatment to see if the intervention leads to better long-term recovery and represents good value for money. Participants in the intervention group will: * Attend eight weekly 2-hour online group mindfulness sessions. * Use a WeChat mini-program for 49 days of guided mindfulness exercises and daily tasks. * Patients who have not achieved reliable recovery after group retraining voluntarily participate in individual UP\&MIED counseling. * Complete regular questionnaires and interviews over two years to track their progress. All participants will continue to receive their usual medical care from their doctors throughout the study.

Gender: All

Ages: 18 Years - 65 Years

Updated: 2026-03-27

Emotional Disorders
Depressive Disorder
Anxiety Disorders
+3
RECRUITING

NCT05925322

Brain Changes During Social Reward Psychotherapy for Mid- and Late-Life Suicidality

The investigators hypothesized that during the 9-week course of Engage \& Connect treatment there will be an increase in brain functions of the Positive Valence System which in turn will lead to reduction in suicidality.

Gender: All

Ages: 50 Years - 80 Years

Updated: 2026-03-27

1 state

Depression
Suicidal Ideation
Major Depressive Disorder
+1
ACTIVE NOT RECRUITING

NCT06530888

Feasibility of Process-based Therapy in a Naturalistic Setting

The main objective is to explore the feasibility of Process-based Therapy in a natural mental health care setting delivered by practitioners.

Gender: All

Ages: 18 Years - 65 Years

Updated: 2026-03-19

1 state

Depressive Disorder
Anxiety Disorder
RECRUITING

NCT07191392

Intervention Effect of Temporal Interference Stimulation (TIS) on Depressive Disorder

To investigate the effect of Temporal Interference Stimulation (TIS) on associative memory (AM) in patients with depressive disorder

Gender: All

Ages: 12 Years - 60 Years

Updated: 2026-03-10

1 state

Depressive Disorder
Temporal Interference Stimulation
NOT YET RECRUITING

NCT07454070

Efficacy of Transcutaneous Auricular Vagus Nerve Stimulation on Alleviating Major Depressive Disorder in Patients With Acute Coronary Syndrome After Percutaneous Coronary Intervention:A Prospective, Double-Blind,Randomized Controlled Study

This is a randomized, controlled study. ACS follow- up patients aged 18 to 80 years old with hemodynamic stability, who are 14 days to 1 year after PCI, are screened through the HAMD score and the HAMA score. Patients with a HAMD score greater than 7 points and a HAMD score higher than that of the HAMA, are included in this study. Patients were allocated to the active taVNS group or sham taVNS group with a 1:1 ratio. Both groups received the stimulation for 20 minutes each time, twice a day with an 8-week treatment and a 8-week follow-up. All treatments were self-administered by the patients at home after they received training from the hospitals. The primary observation endpoints include the depression scores of the HAMD. The secondary observation endpoints include the HAMA 、GAD、 response and remission rates of HAMD ,as well as the PCL-C for post-traumatic stress disorder. We also observed the cardiac function indexes measured by echocardiography and the B-type natriuretic peptide .

Gender: All

Ages: 18 Years - Any

Updated: 2026-03-06

1 state

Depressive Disorder (Per DSM-V Criteria, Mild-to-moderate)
Acute Coronary Syndrome (ACS)
Percutaneous Coronary Intervention (PCI)
+5
NOT YET RECRUITING

NCT06206226

The Oh Happy Day Class - Digital Connections (OHDC-DC): A Pilot Study

The goal of this clinical trial is to see if a mobile phone app can deliver depression treatment to African Americans who are depressed. The main question it aims to answer is if this treatment is effective in reducing symptoms of depression. Participants will attend six 90-minute weekly classes via an app on their phone, and will be asked to complete surveys every week. Participants can expect to be in the study for four months.

Gender: All

Ages: 18 Years - Any

Updated: 2026-03-05

1 state

Depression
Depressive Disorder
Depressive Symptoms
ACTIVE NOT RECRUITING

NCT06170801

Group Intervention for Interpersonal Skills

The purpose of this study is to compare an individual state-of-the-art cognitive behavioral therapy (CBT) with CBT augmented by a group intervention for improving interpersonal skills, the Kiesler Circle Training (CBT+KCT), in patients with a depressive or anxiety disorder.

Gender: All

Ages: 18 Years - 70 Years

Updated: 2026-03-04

Depressive Disorder
Anxiety Disorder
ENROLLING BY INVITATION

NCT07274917

Stereotactic Radiotherapy Treatment for Treatment-resistant Depression

This study is an clinical trial aimed at evaluating the effectiveness and safety of stereotactic radiotherapy for treatment-resistant depression

Gender: All

Ages: 18 Years - 50 Years

Updated: 2026-02-13

Treatment-Resistant Depression
Depressive Disorder
NOT YET RECRUITING

NCT07397195

ACT for Veterans With IBD and Mental Health Challenges

Many Veterans with gastrointestinal disorders, such as inflammatory bowel disease (IBD), also have mental health conditions. IBD and mental health conditions can worsen one another through the brain-gut axis, leading to dramatic deficits in psychosocial functioning and quality of life (QOL). Yet, few Veterans with comorbid IBD and mental health conditions receive psychotherapy and no evidence-based psychotherapies have been tested in Veterans with these comorbidities. Adapting brief acceptance and commitment therapy (ACT) to the specific to the needs of these patients and embedding treatment into routine gastroenterology care may increase Veterans' access to efficient and effective rehabilitative care. This study aims to adapt and test an integrated, 1-Day ACT intervention tailored to the specific needs of Veterans with IBD and mental health conditions to improve psychosocial functioning and QOL.

Gender: All

Ages: 18 Years - Any

Updated: 2026-02-09

1 state

Inflammatory Bowel Diseases
Crohn's Disease
Ulcerative Colitis
+3
ACTIVE NOT RECRUITING

NCT05746546

Depressed Mood Improvement Through Nicotine Dosing-3 (Depressed MIND3) Extension

Deficits in cognitive control are core features of late-life depression (LLD), contributing both to emotion dysregulation and problems with inhibiting irrelevant information, conflict detection, and working memory. Clinically characterized as executive dysfunction, these deficits are associated with poor response to antidepressants and higher levels of disability. Improvement of cognitive control network (CCN) dysfunction may benefit both mood and cognitive performance, however no current pharmacotherapy improves Cognitive Control Network deficits in LLD. The study examines the hypothesis that nicotine acetylcholine receptor agonists enhance Cognitive Control Network function. This effect may resultantly improve mood and cognitive performance in LLD. Small, open-label studies of transdermal nicotine (TDN) patches have supported potential clinical benefit and provided support that transdermal nicotine administration engages the Cognitive Control Network. This is an open-label, extension to the blinded Depressed MIND 3 (Depressed Mood Improvement through nicotine dosing) study. It will evaluate longer-term safety and efficacy of Transdermal Nicotine Patches for potential benefit in cognitive and depression outcomes in elderly depressed participants. Subjects complete blinded randomized trial of Depressed MIND-3 will be eligible for continuation in this extension. This extension study will consist of up to 12 weeks of treatment and a 3 -week safety follow-up period.

Gender: All

Ages: 60 Years - Any

Updated: 2026-02-06

1 state

Depressive Disorder
RECRUITING

NCT05746273

Depressed Mood Improvement Through Nicotine Dosing 3

Deficits in cognitive control are core features of late-life depression (LLD), contributing both to emotion dysregulation and problems with inhibiting irrelevant information, conflict detection, and working memory. Clinically characterized as executive dysfunction, these deficits are associated with poor response to antidepressants and higher levels of disability. Improvement of cognitive control network (CCN) dysfunction may benefit both mood and cognitive performance, however no current pharmacotherapy improves Cognitive Control Network deficits in LLD. The study examines the hypothesis that nicotine acetylcholine receptor agonists enhance Cognitive Control Network function. This effect may resultantly improve mood and cognitive performance in LLD. Small, open-label studies of transdermal nicotine (TDN) patches have supported potential clinical benefit and provided support that transdermal nicotine administration engages the Cognitive Control Network. This blinded study will expand past open-label trials supporting potential benefit in LLD. It will examine TDN's effect on depression severity and cognitive control functions measured by neuropsychological testing. The study will evaluate 60 eligible and enrolled participants over a 3-year period.

Gender: All

Ages: 60 Years - Any

Updated: 2026-02-06

1 state

Depressive Disorder
ENROLLING BY INVITATION

NCT07363980

Coronary Computed Tomography Angiography In Rheumatoid Arthritis Study

The Coronary Computed Tomography Angiography in Rheumatoid Arthritis study is part of the multinational, prospective, observational Autoimmunity and Atherosclerosis in Rheumatic Diseases cohort (https://atacc-rd.com) that includes comprehensive baseline and follow-up assessments at 3, 5, and 10 years. It comprises a main protocol and several optional modules, including a Cardiac Imaging Module, Biobanking Module, Pulmonary Module, and Anxiety and Depression Module. The study aims to advance understanding of cardiopulmonary and psychological comorbidities in rheumatoid arthritis, to improve early identification and management, and to enhance insights into underlying disease mechanisms-ultimately refining risk stratification and targeted prevention strategies. The study includes 4,000 patients with rheumatoid arthritis enrolled through the Cardiac Imaging Module in the main protocol. Participants undergo coronary computed tomography angiography, pulmonary function testing, physical examination, questionnaires, and biobanking, supplemented by genetic, proteomic, metabolomic, and microbiome profiling.

Gender: All

Ages: 50 Years - 75 Years

Updated: 2026-02-03

Rheumatoid Arthritis
Atherosclerotic Ischemic Disease
Pulmonary Disease
+14
RECRUITING

NCT07252427

Gut Microbiota in IBD With Comorbid Depressive Disorder

Inflammatory bowel disease (IBD) is often comorbid with depressive disorder, and the development and progression of both conditions are closely related to the composition of gut microbiota and metabolites. However, studies investigating their comorbidity using microbiome and metabolomics approaches remain limited. This study aims to investigate the diversity changes in the gut microbiome and metabolome of patients with comorbid IBD and depressive disorder through multi-omics approaches, to identify specific microbial and metabolic signatures associated with the comorbidity of these two conditions, and to provide a molecular basis for elucidating the underlying mechanisms.

Gender: All

Ages: 18 Years - Any

Updated: 2026-01-23

1 state

Inflammatory Bowel Disease
Depressive Disorder
RECRUITING

NCT06408012

An Innovative Master Platform for Clinical Trials in Mood Disorders

Mood disorders such as depression and bipolar disorder affect over 350 million people around the world. While several effective treatments exist, it is often difficult to match the right treatment to an individual person. Repeated efforts to find the right treatment contribute to poor functioning, low quality of life, and prolongs the time it takes to get well. Most areas of medicine are able to use 'biomarkers' or clinical tests, blood tests, or imaging to help diagnose and treat illness. The search for biomarkers in mood disorders is advancing, but one roadblock to progress is the lack of large, standardized studies of mood disorders that are needed to accurately identify biomarkers. The aim of the ENABLE platform is to provide the Canadian neuroscience community a standardized way of collecting biomarker data from individuals with a range of mood disorders symptoms. In addition, this 'master clinical trial platform' framework will provide a pool of participants who can be recruited into biomarker-based clinical trials.

Gender: All

Ages: 16 Years - Any

Updated: 2026-01-22

4 states

Mood Disorders
Depressive Disorder
Bipolar and Related Disorders
RECRUITING

NCT05400252

Whole Health in VA Mental Health: Omnis Salutis

Recent Veterans of the Afghanistan and Iraq conflicts are presenting in VA care with high rates of posttraumatic stress disorder (PTSD), depression, anxiety, and substance use disorders. Difficulties with social relationships and community reintegration are common functional impairments with these disorders. VA is transforming to a Whole Health, patient-centered system of care that will address these issues as part of health care. In a previous study, Omnis Salutis (OS) was developed with Veteran and clinician input. OS is a three-session intervention in which Veterans learn about Whole Health and practice communicating their health mission to providers and social supports. OS was shown feasible to deliver, acceptable to Veterans, and preliminarily effective at improving physical, mental, and social functioning. This study will use a large, multisite randomized controlled trial to test the impact of OS on Veterans' social and physical functioning and Veteran engagement in mental health care. Results will support broad delivery of OS throughout the VA.

Gender: All

Ages: 18 Years - 65 Years

Updated: 2026-01-09

2 states

Stress Disorders, Post-Traumatic
Depressive Disorder
Anxiety Disorders
+1
NOT YET RECRUITING

NCT07311668

Validation of the Accuracy of an AI-Based System for Diagnosing Depressive Disorders

The trial aimed to evaluate the accuracy of an artificial intelligence-based system for diagnosing depressive disorders. Specifically, it sought to determine whether the system's assessment validity is non-inferior to that of psychiatric specialists.

Gender: All

Ages: 18 Years - 60 Years

Updated: 2025-12-31

1 state

Depressive Disorder
RECRUITING

NCT07022184

Lifestyle Intervention for Symptoms of Depression wIth App Support in General Practice

The goal of this clinical trial is to find out whether a smartphone app can help reduce symptoms of depression by supporting healthy lifestyle changes and encouraging self-monitoring in adults who visit their general practitioner with symptoms of depression. The main questions this study aims to answer are: Does a personalized lifestyle intervention delivered through the app, in addition to regular care, reduce depression symptoms more effectively than regular care alone? Is this approach more cost-effective than regular care alone? Researchers will compare patients who use the app alongside their regular care to patients who receive regular care without the app, to see whether the app leads to better outcomes. Participants who use the app will: Complete a lifestyle questionnaire focused on six themes: mental wellbeing, use of harmful substances, social relationships, healthy eating, sleep, and physical activity. Set personal goals based on their results and receive tailored lifestyle advice. Track their depression symptoms regularly within the app to support ongoing care. Have follow-up conversations with their general practitioner or mental health nurse to discuss their progress. Fill out questionnaires about their symptoms and experiences during the study.

Gender: All

Ages: 18 Years - Any

Updated: 2025-12-22

3 states

Depressive/Anxiety Symptoms
Depressive Disorder
RECRUITING

NCT07295652

Characterization of High-Level Cognitive Impairments in Patients With Neuropsychiatric Disorders

Neuropsychiatric disorders are extremely common, severe, and disabling conditions. In the field of psychiatry, they notably include schizophrenia, mood disorders (depressive and bipolar disorders), autism spectrum or neurodevelopmental disorders, obsessive-compulsive disorder, eating disorders, and personality disorders. In the field of neurology, one can cite neurodegenerative diseases (such as Alzheimer's disease, but also frontotemporal dementia or Parkinson's disease, which often represent frequent and challenging differential diagnoses of psychiatric disorders), focal neurological lesions (notably strokes and tumors), or epilepsy. Cognitive impairments are present in nearly all neuropsychiatric disorders and contribute significantly to disability. While impairments in working memory and attention, executive functions, and social cognition have been relatively well studied, other cognitive domains remain largely unexplored in these populations. This is particularly the case for various aspects of motivation, metacognition, conscious access, or causal (Bayesian) inference. Although these domains likely play an important role in prognosis, no consensus currently exists regarding the methods for evaluating these functions. The main objective of this study is to define a multidimensional, transdiagnostic atlas of high-level cognitive impairments-both specific and shared-across severe psychiatric disorders (notably schizophrenia, depressive disorder, bipolar disorder, autism spectrum or neurodevelopmental disorders, and obsessive-compulsive disorder) and neurological disorders (notably neurodegenerative diseases, focal neurological lesions, and epilepsy), by comparing them to healthy volunteers. The investigators also aim to investigate the progression of cognitive impairments over time, across different phases of illness (symptom stabilization or exacerbation) or therapeutic intervention, through longitudinal follow-up of patients being monitored within the recruiting center. Finally, in a more exploratory manner, the investigators aim to investigate the neural correlates of the identified cognitive impairments.

Gender: All

Ages: 18 Years - Any

Updated: 2025-12-19

Neurologic Disorders
Schizophrenia
Bipolar Disorder (BD)
+1