Clinical trials · Hartford, CT
Major Depressive Disorder clinical trials in Hartford
We’re tracking 21 recruiting major depressive disorder studies with a site in or near Hartford — including Phase 1, Phase 2 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies near Hartford
- NCT06922110Enrolling by invitationPhase 3
Long-term study of azetukalner for depression
This study is for people who already completed a previous trial of azetukalner for major depressive disorder. It tests the long-term safety and effects of continuing the medication.
Hartford, ConnecticutAges 18 years+ - NCT07076407RecruitingPhase 3
Testing a new antidepressant pill for depression
This study tests an experimental oral pill called azetukalner against a placebo to see if it safely reduces symptoms of major depressive disorder. It is for adults who are currently in a depressive episode lasting 6 weeks to 2 years and have not already tried multiple antidepressants that failed.
Hartford, ConnecticutAges 18–74 - NCT06547489RecruitingPhase 2
Testing zelquistinel for major depression
This study tests whether zelquistinel, an investigational drug, can reduce symptoms of major depressive disorder (a type of clinical depression). It is for people who are currently experiencing a moderate to severe depressive episode and are not taking other antidepressants.
Farmington, ConnecticutAges 18–64 - NCT06963021RecruitingPhase 3
Study of NBI-1065845 for depression that hasn't fully responded to treatment
This trial tests an investigational drug called NBI-1065845 added to your current antidepressant. It is for people with moderate to severe depression or persistent depressive disorder who have not improved enough with oral antidepressants alone.
Farmington, ConnecticutAges 18 years+ - NCT06966401RecruitingPhase 3
Long-term safety study of a new depression treatment
This study tests a new oral medication (NBI-1065845) added to your current antidepressant to see if it's safe and tolerable over a long period for people with depression that hasn't fully responded to treatment.
Farmington, ConnecticutAges 18 years+ - NCT06559306RecruitingPhase 3
Seltorexant for depression with insomnia symptoms
This trial tests if adding seltorexant to your current antidepressant can improve depression and sleep problems. It is for people with major depressive disorder who still have symptoms, especially insomnia, despite trying at least one antidepressant.
Farmington, ConnecticutAges 18–74 - NCT05850689RecruitingPhase 3
Lumateperone add-on for major depression that didn’t improve
This study tests whether adding lumateperone to an antidepressant helps adults with major depressive disorder (MDD) who haven’t improved enough after trying at least two different antidepressants. It may help reduce depressive symptoms more than antidepressants alone.
Farmington, ConnecticutAges 18–65 - NCT06633016RecruitingPhase 2
ABX-002 for major depression (add-on treatment)
This trial tests a new medication called ABX-002 as an add-on to your current antidepressant. It's for people with moderate to severe depression who haven't gotten enough help from their current antidepressant alone.
Cromwell, ConnecticutAges 18–65 - NCT07065240RecruitingPhase 2
Study of SPT-300 for major depression with or without anxiety
This trial tests an experimental oral medication, SPT-300, for people with major depressive disorder, even if they also have mild anxiety. The goal is to see if it helps improve mood safely.
Cromwell, ConnecticutAges 18–65 - NCT07161700Enrolling by invitationPhase 2
Long-term safety study of SPT-300 for major depression
This study is for people who finished the earlier BUOY-1 study of SPT-300 and want to continue treatment. It tests the long-term safety and tolerability of SPT-300 for major depressive disorder, with or without anxious distress.
Cromwell, ConnecticutAges 18–66 - NCT06775379RecruitingPhase 3
Azetukalner vs. placebo for major depression
This trial tests an investigational medication called Azetukalner against a placebo to see if it helps reduce symptoms of major depressive disorder. You may qualify if you are currently in a depressive episode that started in adulthood and have not tried or failed only a few antidepressants.
Cromwell, ConnecticutAges 18–74 - NCT07484217RecruitingPhase 3
Testing solriamfetol for depression with daytime sleepiness
This study tests if the drug solriamfetol can help people with major depression who also feel very tired during the day. It aims to improve both mood and daytime sleepiness.
Springfield, MassachusettsAges 18–65 - NCT06784908Recruiting
Stress and pain study for people living with HIV
This study looks at how stress affects pain in people with HIV. It may help find better ways to manage pain in this group.
New Haven, ConnecticutAges 18–68 - NCT07196501RecruitingPhase 3
Study of a new add-on treatment for depression maintenance
This trial tests a new medication (NBI-1065845) added to your current antidepressant to see if it helps maintain improvement in depression. It is for people whose depression hasn't fully responded to their current oral antidepressant.
New Haven, ConnecticutAges 18 years+ - NCT07412756RecruitingPhase 3
Brenipatide for major depressive disorder
This trial tests a new medication, Brenipatide, to see if it helps people with major depression who are already on a stable treatment. You would need to inject the study drug yourself and complete questionnaires.
New Haven, ConnecticutAges 18–75 - NCT06402955RecruitingPhase 2
Imaging depression in Parkinson's disease
This study uses brain imaging (PET scans) to understand depression in people with Parkinson's disease. It may also test a depression treatment called ketamine, but the main goal is to see how the brain changes with depression.
New Haven, ConnecticutAges 40–80 - NCT06793397RecruitingPhase 3
Study of an experimental psychedelic-like drug for depression (CYB003)
This study tests an investigational medication (CYB003) for people with major depression whose current antidepressant isn't working well enough. It looks at whether this treatment can help improve depression symptoms.
New Haven, ConnecticutAges 18–85 - NCT06725277Recruiting
Observing ketamine and Spravato for depression
This study follows people who are already taking or about to start IV ketamine or Spravato® for hard-to-treat depression. Researchers want to learn more about how these treatments work in real life.
New Haven, ConnecticutAges Any age - NCT05915013RecruitingPhase 1
Brain-targeting study of ketamine response in treatment-resistant depression
This early-stage study looks at how parts of brain cells respond to ketamine in people with depression who have not improved with usual antidepressants. It may help researchers find why ketamine works for some people and not others, and who might benefit.
New Haven, ConnecticutAges 18–60 - NCT06442423RecruitingPhase 1
Psilocybin study for people with psychiatric symptoms
This trial tests if psilocybin, a substance found in certain mushrooms, can help people with various mental health symptoms that affect daily life. You would take a single dose in a supervised setting and be monitored for changes in your mood and well-being.
New Haven, ConnecticutAges 18 years+ - NCT06142955Recruiting
TMS therapy for depression in autism spectrum disorder
This study tests whether transcranial magnetic stimulation (TMS), a noninvasive brain stimulation technique, can help treat depression in people with autism spectrum disorder. It may help if you are between 18 and 40, have autism and depression, and are not taking medications that could interfere.
New Haven, ConnecticutAges 18–40
Hear when a new Major Depressive Disorder trial opens near Hartford, CT
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Major Depressive Disorder trials in other cities
Where these studies are running near Hartford
Institutions with a site for the recruiting major depressive disorder studies listed above.
- Neurocrine Clinical Site · 3 studies
- Clinical Site · 2 studies
- CT Clinical Research · 2 studies
- Elixia Health · 2 studies
- Institute of Living · 2 studies
- Seaport Investigator Site · 2 studies
- Yale School of Medicine · 2 studies
- Yale University · 2 studies
What taking part in a major depressive disorder study involves
A screening visit first
Before anything else, the study team checks whether you fit — usually a visit with some tests. You can stop at any point, and screening is typically free.
Care at a nearby site
Study visits happen at a clinic or hospital taking part. Many studies cover the cost of the study treatment and related visits, and some reimburse travel.
You stay in control
Taking part is voluntary and you can leave a study at any time, for any reason, without affecting your regular care.
The team decides eligibility
Our fit check is a helpful first read, not a decision. The study team makes the final call after reviewing your health history.
Looking wider? See all recruiting major depressive disorder studies in Connecticut.
Common questions
- Are there major depressive disorder clinical trials near Hartford?
- Yes. We're currently tracking 21 recruiting major depressive disorder studies with a site near Hartford, each rewritten in plain language so you can see what it's testing and who it's for.
- How do I find out if I qualify for a major depressive disorder study near Hartford?
- Each study lists its eligibility rules — age, diagnosis, prior treatments. On every trial page we explain these in plain language and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Do I have to live in Hartford to take part?
- Not necessarily. These studies have a site near Hartford, but eligibility is about your health, not your address — some people travel to take part, and a few studies reimburse travel. The study team can tell you what's required.
- Does it cost anything to join a major depressive disorder trial?
- Using Clin2 is always free. Many trials cover the study treatment and related visits; some reimburse travel. The study team explains exactly what's covered before you decide.
Not the right time?
New major depressive disorder studies open near Hartford regularly. Set up a health profile and we’ll quietly watch for studies that fit you and email you when one opens.