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 282 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- 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 - 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 - 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 - NCT07845604RecruitingPhase 2
Testing an anti-inflammatory drug with Lexapro for depression
This study tests whether an anti-inflammatory medication (adalimumab, also known as Humira) can help treat depression when added to Lexapro. It may help people whose depression is linked to higher levels of inflammation in the body.
Philadelphia, PennsylvaniaAges 18 years+ - NCT06658795Recruiting
Can brain stimulation help older adults with depression and loneliness?
This study tests whether a gentle brain stimulation technique called tDCS (transcranial direct current stimulation) can reduce loneliness in older adults with depression. It involves wearing a headband during sessions and comparing results to a placebo group.
Guangzhou, GuangdongAges 60–80 - 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 - NCT06923995Recruiting
AI-based depression and anxiety assessment study
This study tests an AI tool that analyzes video and audio recordings to measure depression and anxiety. It is for people starting a new treatment for depression or anxiety and aims to see if the AI can accurately track their progress.
Houston, TexasAges 18–65 - 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 - 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 - NCT03736538Enrolling by invitationPhase 1
Nitrous oxide for suicidal thoughts in depression
This Phase 1 study tests whether breathing nitrous oxide can safely reduce suicidal thoughts in adults with major depression. It may help people whose depression is causing moderate to severe suicidal thinking, by studying a fast-acting treatment approach.
St Louis, MissouriAges 18–65 - NCT06724666Recruiting
Online therapy for teens with anxiety or depression
This study tests an online therapy program for teens aged 13–17 who feel anxious, depressed, or both. The program is designed to help you understand and manage these feelings through short, internet-based sessions, and you can do it from home.
Cluj-NapocaAges 13–17 - NCT07758010Recruiting
Brain stimulation for treatment-resistant depression
This study tests a type of brain stimulation called cTBS (continuous theta burst stimulation) applied to a specific part of the brain (the precuneus) to see if it helps with treatment-resistant depression. It aims to provide a new option for people who haven't found relief from standard treatments.
Belmont, MassachusettsAges 18 years+ - NCT05076214Recruiting
Exercise group for teens with mild to moderate depression
This study compares a structured aerobic exercise group to a more relaxed leisure activity group for adolescents with mild to moderate depression. It aims to see whether exercise can help improve mood when earlier basic support didn’t work well enough.
HalmstadAges 13–17 - NCT06389175Enrolling by invitation
Non-invasive ear stimulation for depression
This study uses a gentle, non-invasive device that stimulates the vagus nerve in your ear to see if it can improve how your stomach and brain communicate, which may help with depression symptoms.
BonnAges 18–55 - NCT04685148RecruitingPhase 1/Phase 2
Study of mental health treatment during pregnancy
This trial studies a treatment aimed at improving maternal mental health during pregnancy. It focuses on people who have had depression around pregnancy before, and checks whether the approach is safe and helpful for them.
CopenhagenAges 18–45 - NCT07444242Recruiting
Fast depression treatment using brain stimulation
This trial tests whether a non-invasive brain stimulation technique called tDCS can quickly improve depression symptoms. It is for people who are not taking any psychiatric medications now or in the past.
Regensburg, BavariaAges 18–70 - NCT07221929Recruiting
Exercise plus CBT for depression: The CBT+ Trial
This study tests whether adding exercise before standard talk therapy (CBT) helps treat depression more effectively than CBT alone. You will be asked to do moderate exercise and then receive CBT sessions over 8 weeks.
Madison, WisconsinAges 18–65 - NCT06572683Enrolling by invitation
Novel TMS for hard-to-treat depression
This trial tests a new type of transcranial magnetic stimulation (TMS) for people with severe depression that hasn't improved with multiple medications or therapy. It uses a different frequency pattern to target brain circuits.
Los Angeles, CaliforniaAges 21–75 - NCT05877885Recruiting
Digital treatment for low motivation in older adults with depression
This study tests a digital therapy to improve apathy (feeling unmotivated or “checked out”) in people age 60+ who have depression. It also uses brain imaging (MRI) and questionnaires to see whether the treatment helps brain function linked to motivation.
Orlando, FloridaAges 60 years+ - NCT05616559Recruiting
Precision-guided treatment for single-episode depression
This study tests a more personalized approach to treating depression in people who have had one episode. It uses questionnaires and brain scans (for some participants) to help decide which treatment approach may work best.
CopenhagenAges 18–65 - NCT06719427RecruitingPhase 1
Brain waves study for depression treatment with rTMS
This study looks at brain wave patterns in people with depression who are receiving a type of brain stimulation called rTMS. It aims to understand how the brain changes during recovery, which may help improve future treatments.
North York, OntarioAges 18–80 - NCT07247344Recruiting
Depression in hospitalized teens: a brain study
This study looks at brain and behavior in teens aged 10–20 who are hospitalized for depression or bipolar disorder. It aims to better understand the condition and may help guide future treatments.
Nanjing, JiangsuAges 10–20 - NCT07025720Recruiting
Brain stimulation for depression and suicide risk in young people
This study tests a new type of brain stimulation called TMS (transcranial magnetic stimulation) for young people ages 15-25 who are having serious depression and suicidal thoughts. The goal is to see if this treatment can help reduce risk and improve mood.
Sacramento, CaliforniaAges 15–25
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Common questions
- Are there clinical trials for major depression severe?
- Yes. Clin2 currently lists 282 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.