Condition

Major Depressive Disorder (MDD) clinical trials and research

As of November 12, 2026, Find a Trial lists 78 Major Depressive Disorder (MDD) clinical trials that are recruiting, at sites in 26 countries (most in United States (24), Canada (13), China (11)). 5 were first registered in the last 30 days. By phase: Phase 2 (16), Phase 4 (3), Phase 3 (3), Phase 2/3 (2). The most active sponsors are University of Pennsylvania (3), The Royal's Institute of Mental Health Research (2), Draig Therapeutics Ltd (2). There are also 1 NIH-funded research project on Major Depressive Disorder (MDD), with $182,887 in listed awards. Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.

Newest Major Depressive Disorder (MDD) clinical trials

StudyPhaseWhereStatusRegistered
Emotional Reactivity in Severe Alcohol Use Disorder and Depression Using Eye-Tracking and Physiological Measures — Brussels, Belgium Recruiting Nov 9, 2026
Temporally Interfering Electrical Stimulation for Major Depressive Disorder — Fuzhou, Fujian and 1 other locations Recruiting Nov 9, 2026
Affective Cognitive Training for mood disorders and their close relatives — Frederiksberg, Capital Region of Denmark Recruiting Nov 5, 2026
ALKS 7290 added to antidepressants for adults with major depression Phase 2 Jacksonville, Florida Recruiting Oct 28, 2026
French Minds: a French, Multimodal Cohort Study of Severe Psychiatric Disorders and Healthy Controls — Besançon and 16 other locations Recruiting Oct 19, 2026
EEG-Guided TMS for Adults With Depression — Rochester, Minnesota Recruiting Oct 7, 2026
Add-on anti-inflammatory therapy for adults with depression and high inflammation Phase 2 Philadelphia, Pennsylvania Recruiting Sep 29, 2026
Ketamine plus behavioral activation therapy for treatment-resistant depression Phase 2/3 Ottawa, Ontario Recruiting Sep 3, 2026
EEG microstates and inflammatory markers in treatment-resistant depression patients undergoing ECT — Istanbul, Bakırköy Recruiting Aug 5, 2026
Cannabidiol Oil as an Add-on for Treatment-Resistant Major Depression Phase 1/2 Tubarão, Santa Catarina Recruiting Jul 10, 2026

All recruiting trials (78)

NIH-funded research (1)

Early-stage science funded by the US National Institutes of Health. Most of these projects don't enroll patients, but they show what is being worked on.

Related topics

Treatment Resistant Depression (TRD)Bipolar Disorder (BD)Suicidal IdeationMajor DepressionAlcohol Use Disorder (AUD)Major Depression With Comorbid Anxiety SymptomsProbiotic InterventionTreatment Resistant DepressionAlcohol Use DisorderAlzheimer's DiseaseAnxiety DisorderAutism Spectrum Disorder (ASD)Bipolar DisorderBipolar Disorder I or II

Quick answers

How many Major Depressive Disorder (MDD) clinical trials are recruiting right now?

78, as of November 12, 2026. 5 of them were first registered in the last 30 days. We update this list each time we refresh our data from ClinicalTrials.gov.

Where are these trials running?

In 26 countries. The most sites are in United States (24 trials), Canada (13 trials), China (11 trials), Czechia (6 trials), Germany (5 trials). Each study page lists its sites and which ones are recruiting.

What phases are they in?

Phase 2: 16, Phase 4: 3, Phase 3: 3, Phase 2/3: 2. Trials with no phase listed are usually device, behavioural or observational studies.

How do I join one?

Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.

Find the studies that fit you

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Last reviewed 2026-11-12 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.