Clinical trials
Major Depression Severe clinical trials
Below are recruiting major depression severe clinical trials, each written for real people, not researchers. We’re tracking 279 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07485387Recruiting
Korean cognitive aging study using smartphone app
This study looks at how thinking and memory change as people get older. It uses a smartphone app to track these changes over time in healthy older adults living in South Korea.
Seoul, Select One...Ages 60 years+ - NCT07507370Recruiting
CARED: A fast new treatment plan for depression
This study tests a quick treatment approach for adults with major depression who have not gotten enough help from at least one antidepressant. It aims to see if a new rapid method can improve mood safely.
Chapel Hill, North CarolinaAges 18–70 - NCT07539805RecruitingPhase 2
Sertraline Plus Probiotic for Teen Depression
This study tests whether combining sertraline (an antidepressant) with a specific probiotic called Lactobacillus crispatus can safely and effectively treat depression in teenagers. The probiotic may help by improving gut health, which researchers believe could support mental health.
Longgang, Chongqing MunicipalityAges 12–18 - NCT07560878RecruitingEarly Phase 1
Brain Stimulation and Medication Study for Depression
This early-stage study tests a type of magnetic brain stimulation called theta burst stimulation combined with study medications to help treat moderate to severe depression. Researchers want to understand how this combination affects brain communication and may help reduce depressive symptoms.
Belmont, MassachusettsAges 18 years+ - NCT07642882Recruiting
Brain Stimulation for Fibromyalgia Pain Relief
This study tests whether a non-invasive brain stimulation treatment (rTMS) can reduce chronic pain in fibromyalgia patients. The treatment uses magnetic pulses to stimulate specific areas of the brain and may help relieve widespread pain.
Boulogne-Billancourt, Île-de-France RegionAges 18–80 - NCT07645157RecruitingPhase 2
Sertraline and Probiotics for Teen Depression
This study tests whether combining an antidepressant medication (sertraline) with special bacteria supplements (probiotics) can help treat depression in teenagers ages 12–18. Researchers believe the probiotics may help the medication work better by improving gut health.
Chongqing, YuzhongAges 12–18 - NCT06792175Enrolling by invitation
Using speech to detect mental health conditions
This study uses a computer program to listen to your speech and see if it can help detect mental health or neurodevelopmental conditions. It may help find new ways to diagnose conditions like ADHD, anxiety, depression, and others earlier.
Brookline, MassachusettsAges 13–60 - NCT07316803Recruiting
Group therapy for romantic relationships in young adults with mental illness
This study tests a group program to help young adults with serious mental health conditions build skills for romantic and social relationships. It may be a good fit if you are single, motivated to work on relationships, and have received mental health care recently.
Épinay-sur-Seine, Île-de-France RegionAges 18 years+ - NCT05703412Enrolling by invitation
Text or app check-ins after discharge for serious mental illness
This study tests an mHealth (phone-based) program that helps people with serious mental illness after leaving the hospital. It may help you stay connected to care and support in the community after discharge.
Providence, Rhode IslandAges 18 years+ - NCT07217223Recruiting
Home-based brain stimulation for treatment-resistant depression
This study tests whether a gentle brain stimulation technique called tDCS can help people with depression that hasn't improved with medication. It can be done at home using a special headset and an internet connection.
San Diego, CaliforniaAges 18–85 - NCT07105397Recruiting
AI assistant for managing depression
This study tests a conversational AI system designed to help manage depression. It may recommend treatment changes that are reviewed by a clinician, offering a new way to get support.
Fairfax, VirginiaAges 18–85 - NCT02994433RecruitingPhase 1
Testing nitrous oxide for depression brain circuit activity
This early study tests whether nitrous oxide, aimed at specific brain circuits, can change depression-related brain activity. It is mainly for adults with major depression or treatment-resistant depression, and includes brain imaging during the study.
St Louis, MissouriAges 18–65 - NCT05786066RecruitingPhase 2
Test whether blocking AMPA changes ketamine’s suicide relief
This study looks at whether an “AMPA receptor blocker” changes how ketamine affects suicidal thoughts in people with depression that hasn’t improved with usual treatments. If you qualify, you may receive ketamine and the study medicine, while continuing your regular mental health care.
West Haven, ConnecticutAges 21–65 - NCT06054321Recruiting
Depression medication study for adults 19 to 65
This study tests a new way of choosing antidepressants for people with major depression. It's designed for adults aged 19–65 who have moderate to severe depression and are either starting a new antidepressant or have been off psychiatric meds for at least a month.
GwangjuAges 19–65 - NCT06110897Recruiting
Resistance Exercise for Depression Trial
This study tests whether resistance exercise (like lifting weights) can help reduce depression symptoms. If you have major depression and are not already doing regular resistance training, you may be able to join.
Ames, IowaAges 18–65 - NCT06450704Recruiting
Exercise for depression: brain and body health
This trial tests if a 12-week exercise program can reduce inflammation and improve brain function in people with depression. It's for adults currently taking antidepressant medication and looking for extra help through physical activity.
Alcalá de Henares, MadridAges 18–65 - NCT06675851RecruitingPhase 4
Dopamine changes in the brains of depressed and healthy people
This study uses brain scans to look at dopamine — a chemical messenger related to reward and mood — in people with depression and healthy volunteers. Researchers want to understand how dopamine changes in depression, which may lead to better treatments.
ViennaAges 18–65 - NCT07002684Recruiting
Esketamine study for depression
This trial tests how treatment with esketamine affects metabolism in people with depression. It may help if you have not responded to at least two standard antidepressants.
ZagrebAges 18–70 - NCT05570812RecruitingPhase 2
Pregnenolone to improve depressed mood in people with HIV
This Phase 2 trial tests a brain-acting steroid called pregnenolone to help reduce depressed mood. It studies whether it can improve mood in adults with HIV who are already on HIV treatment and still have depression symptoms.
Boston, MassachusettsAges 18–85 - NCT06311136Recruiting
Mood support through a smartphone app
This trial tests a smartphone-based program designed to help people manage their emotions in the moment. It may be especially helpful if you currently have mild to moderate depression.
HeidelbergAges 18–65 - NCT04935619Recruiting
Testing cannabis abstinence effects in depression symptoms
This study looks at how stopping cannabis for a period of time may affect depression symptoms and thinking/memory. You might benefit by getting close monitoring of mood and cognition while researchers compare changes during cannabis abstinence.
Toronto, OntarioAges 18–55 - NCT05598034Recruiting
Brain stimulation with tDCS for moderate depression
This study tests whether a noninvasive brain stimulation called tDCS can improve depression symptoms. It also uses MRI scans, aiming to understand how brain changes may relate to symptom improvement.
Los Angeles, CaliforniaAges 20–55 - NCT05895747RecruitingPhase 2
5-HTP and creatine for adults with depression symptoms
This Phase 2 study tests whether adding 5-HTP and creatine can reduce depression symptoms in adults with major depressive disorder. It may help if your current depression treatment hasn’t been fully effective and you meet the safety and medical criteria.
Salt Lake City, UtahAges 18–65 - NCT06309472RecruitingPhase 2
Mirtazapine for depression in inflammatory bowel disease
This trial tests whether the antidepressant mirtazapine can help people with Crohn's disease or ulcerative colitis who also have moderate or severe depression. If you are at least 18 and your IBD treatment is stable, this study could see if this medication improves your mood without interfering with your gut condition.
LondonAges 18–125
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Common questions
- Are there clinical trials for major depression severe?
- Yes. Clin2 currently lists 279 recruiting major depression severe studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a major depression severe trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a major depression severe trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.