Clinical trials · Connecticut
Cannabis clinical trials in Connecticut
We’re tracking 12 recruiting cannabis studies with a site in Connecticut — including Early Phase 1, Phase 1, Phase 1/Phase 2, Phase 2 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in Connecticut
- NCT07644052RecruitingPhase 3
Study of a new medicine to ease cannabis withdrawal
This study tests a new medicine, PP-01, to help adults who use cannabis daily and want to quit. It aims to reduce withdrawal symptoms like anxiety, irritability, and sleep problems during the first week after stopping.
New Haven, ConnecticutAges 18–55 - NCT06058702RecruitingPhase 1
Genetics of cannabis use disorder and response
This study looks at how genes affect cannabis use disorder and how people respond to cannabis. It may help explain why some people develop problems with cannabis while others do not.
West Haven, ConnecticutAges 21–60 - NCT05472818RecruitingEarly Phase 1
Imaging study for treating cannabis use disorder with a test dose
This early-phase study uses brain scans to study cannabis use disorder and looks at whether a treatment approach is suitable for people who use cannabis every day. It may help researchers understand brain changes related to quitting and recovery.
New Haven, ConnecticutAges 18–75 - NCT02781519RecruitingPhase 1
Study how THC affects men and women who have used cannabis before
This Phase 1 study tests how delta-9 THC (the main active ingredient in cannabis) affects healthy adults, and whether the effects differ by gender. It may help researchers understand risks and responses to THC, which could guide safer use and future treatments.
West Haven, ConnecticutAges 18–55 - NCT02811510RecruitingPhase 1
Study of THC effects on people with past cannabis use
This Phase 1 study tests how THC (the main active ingredient in cannabis) affects healthy adults, and whether effects differ by gender. It’s designed to learn about short-term body and brain responses to THC.
West Haven, ConnecticutAges 18–55 - 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 - NCT06513819RecruitingPhase 1
HIV and Alcohol Study for People on Multiple Medications
This study looks at how alcohol use affects people with HIV who take multiple medications, including certain brain or nerve drugs. It aims to find safer ways to manage their health.
West Haven, ConnecticutAges 50 years+ - NCT06395467Recruiting
Integrated treatment for teens with substance use disorder
This trial tests a treatment program for teens and young adults with substance use disorders. It includes family members and is designed to support recovery and personal growth.
Farmington, ConnecticutAges 14–21 - NCT05465538RecruitingPhase 1/Phase 2
PET imaging study using SV2A in older adults
This early-phase study tests a PET scan tracer called SV2A in adults age 50 and older. It aims to help researchers understand how the tracer works in the brain/body, which could support future diagnostic or treatment research.
New Haven, ConnecticutAges 50 years+ - NCT05351801RecruitingPhase 2
Test cannabis-based treatment for nerve pain
This Phase 2 study tests cannabis-derived products to see if they reduce neuropathic (nerve-related) pain in veterans. It may help people whose pain is persistent and causes significant daily impact, especially if certain exam tests show allodynia (pain from normally non-painful touch).
West Haven, ConnecticutAges 21 years+ - NCT04704271RecruitingPhase 1
Study on THC effects in people with past cannabis use
This Phase 1 study looks at how THC (the main mind-altering ingredient in cannabis) affects healthy volunteers shortly after use. It focuses on differences between people and includes those who have used cannabis before.
West Haven, ConnecticutAges 18–55 - NCT01730781Recruiting
PET scan study to image cannabinoid receptors in the brain
This study uses a special brain scan (PET) to measure cannabinoid receptors—areas in the brain that interact with cannabis-like chemicals. It may help researchers better understand how these receptors relate to conditions such as schizophrenia, PTSD, opioid use disorder, or early psychosis risk.
New Haven, ConnecticutAges 18–55
Where these studies are running in Connecticut
Institutions with a site for the recruiting cannabis studies listed above.
- Biological Studies Unit at the VA Connecticut Healthcare System, Yale School of Medicine · 3 studies
- Connecticut Mental Health Center
- Connecticut Mental Health Center, Clinical Neuroscience Research Unit
- The Yale Stress Center
- UConn Health
- VA Connecticut Healthcare System
- VA Connecticut Healthcare System West Haven Campus
- West Haven Veterans Affairs Medical Center
What taking part in a cannabis 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.
Cannabis trials in other states
Common questions
- Are there cannabis clinical trials in Connecticut?
- Yes. We're currently tracking 12 recruiting cannabis studies with a site in Connecticut, 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 cannabis study in Connecticut?
- 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 Connecticut to take part?
- Not necessarily. These studies have a site in Connecticut, 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 cannabis 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 cannabis studies open in Connecticut regularly. Set up a health profile and we’ll quietly watch for studies that fit you and email you when one opens.
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.