Treatment
Cannabis clinical trials
We’re tracking 151 recruiting studies that include Cannabis, each written for real people, not researchers, below.
Recruiting studies
- NCT07296874RecruitingPhase 2
Cannabis and thinking: a study of mood and memory
This study looks at how cannabis affects thinking and mood. If you join, you'll have a session where you use cannabis and then do some thinking and mood tasks, to see how it affects you.
Pullman, WashingtonAges 21 years+ - NCT06807762RecruitingPhase 1
Cannabis extract safety study for healthy adults
This study tests the safety and how the body processes a cannabis extract in healthy volunteers. It helps researchers understand if the extract is safe and how it works before moving to larger studies.
Vinhedo, São PauloAges 18–65 - NCT06733792Recruiting
Mobile app to reduce or quit cannabis use
This study tests a mobile app designed to help people reduce or quit cannabis use. If you are a young adult (18-30) and have used cannabis recently, this app may help you cut back or stop.
Oviedo, Principality of AsturiasAges 18–30 - NCT07227324Recruiting
Cannabis use registry for cancer patients
This study is a registry that collects information from people with cancer who use cannabis. It aims to better understand how cannabis affects cancer symptoms and improve care.
Saint Louis Park, MinnesotaAges 18 years+ - NCT07218471Recruiting
Cannabis reduction study for heavy users
This study tests if helping people reduce heavy cannabis use improves daily life. It's for adults with cannabis use disorder who want to cut back.
Charleston, South CarolinaAges 18 years+ - NCT07196462Recruiting
Brain stimulation to reduce cannabis craving in schizophrenia
This study tests if a non-invasive brain stimulation technique can help reduce cravings for cannabis in people with schizophrenia. It aims to see if this approach can improve outcomes for those who use cannabis and have a psychotic disorder.
Nashville, TennesseeAges 18–65 - NCT07184983Recruiting
Brain stimulation for cannabis use disorder
This study tests whether a gentle brain stimulation technique (called tDCS) can help people who want to cut down or stop using cannabis. You'll wear a headband-like device during sessions at NYU, and the study team will check in with you over time.
New York, New YorkAges 22–65 - NCT07167225Recruiting
Chemical exposure in young adults who use e-cigarettes and cannabis
This study looks at how young adults who use e-cigarettes, cannabis, or both are exposed to harmful chemicals. It aims to understand the health effects of using these products together.
Buffalo, New YorkAges 18–25 - NCT07160153Recruiting
Cannabis Abstinence and Brain Function in Teens
This trial looks at how cannabis affects brain function in teens aged 15–18 who have cannabis use problems. You'll have two neuropsychological tests (like thinking and memory tasks) to see if staying off cannabis helps your brain work better.
Pilsen, CzechiaAges 15–18 - NCT03601026Recruiting
Genetic counseling for youth using cannabis safely
This study offers genetic counseling to help reduce mental health problems that can happen for some young people who use cannabis. You join if you are already part of the FORBOW study and fit their age and mental-health criteria.
Halifax, Nova ScotiaAges 12–21 - NCT07063589Recruiting
Cannabis use patterns in young adults
This study looks at how young adults (ages 18–24) use cannabis and how it relates to their health and social life. If you join, you'll answer questions through your mobile phone over time, which helps researchers understand patterns and effects.
Montreal, QuebecAges 18–24 - NCT07001878RecruitingPhase 4
Cannabis Strength and Brain Health in Early Psychosis
This trial studies how different strengths of cannabis affect the brain's white matter in people with early psychosis. It may help doctors understand which cannabis potencies are less harmful for young adults with psychosis.
St. John's, Newfoundland and LabradorAges 18–25 - NCT06588582Recruiting
How cannabis influences perception and feelings
This study looks at how smoking cannabis affects your perception and emotions. It aims to understand why some people use cannabis to cope with stress or negative feelings.
Boulder, ColoradoAges 21–65 - NCT05581368Recruiting
Study how cannabis affects blood vessels
This trial tests whether regular cannabis use changes how your blood vessels work, compared with people who do not use cannabis. It may help researchers understand potential effects on heart and circulation health.
London, OntarioAges 19–80 - NCT06941298Recruiting
Cannabis and depression study for teens and young adults
This study looks at how cannabis affects the brain and mood in teens and young adults. It compares people who use cannabis, people with depression who don't use cannabis, and healthy volunteers to understand links between cannabis use and mental health.
Miami, FloridaAges 14–20 - NCT06907979Recruiting
Cannabis use and emotion processing study
This study looks at how heavy cannabis use affects the way you process emotions. You may be able to join if you use cannabis most days, meet criteria for cannabis use disorder, and are not currently in treatment for it. Participants will have brain scans and mild brain stimulation.
Auburn, AlabamaAges 18–50 - NCT06859723RecruitingPhase 1
Effects of high potency cannabis on daily users
This study tests how high potency cannabis affects mood, thinking, and pain sensitivity in people who smoke cannabis almost every day. It will help researchers understand both immediate and long-lasting effects.
Los Angeles, CaliforniaAges 21–55 - NCT06808048Recruiting
Medical cannabis and behavior in chronic pain patients
This study looks at how medical cannabis affects thinking and behavior in people with chronic pain. It compares medical cannabis users to pain patients who don't use cannabis over a four-month period.
Minneapolis, MinnesotaAges 30–75 - NCT05836207Recruiting
Rewards for quitting cannabis in young adults
This study tests whether offering rewards can help young adults stop using cannabis. You would attend a treatment clinic and provide supervised urine tests twice each week while aiming to quit.
AmsterdamAges 16–22 - NCT05957848RecruitingPhase 2
Guanfacine for teens with cannabis use problems
This Phase 2 study tests whether extended-release guanfacine can reduce cannabis use in adolescents and young adults. It may help by targeting brain pathways that can drive cravings or continued use.
Parkville, VictoriaAges 12–25 - NCT06661031Enrolling by invitation
Cannabis use help for young adults via phone app
This study tests a new program that combines telehealth coaching and a smartphone app to help young adults who use cannabis a lot to cut back or quit. If you are a patient at certain Boston clinics and use cannabis on most days, this study might be a good fit for you.
Boston, MassachusettsAges 18–26 - NCT06660381RecruitingPhase 1
Psilocybin therapy for cannabis use disorder
This study tests if psilocybin (a substance that can change how you think and feel) can help people reduce or stop using cannabis. You will receive support and be monitored closely throughout the trial.
Baltimore, MarylandAges 18 years+ - NCT06609083RecruitingPhase 1
How cannabis affects cigarette smoking
This study looks at how cannabis affects cigarette smoking habits. If you smoke every day and also use cannabis weekly, researchers want to see if cannabis changes how much you smoke.
Baltimore, MarylandAges 21 years+ - NCT06609109RecruitingPhase 1
Testing how cannabis affects e-cigarette use
This study is for daily e-cigarette users who also use cannabis at least once a week. It tests how cannabis affects vaping behavior. Researchers want to see if using cannabis changes how much or how people vape.
Baltimore, MarylandAges 21 years+
Common questions
- Are there clinical trials studying Cannabis?
- Yes. Clin2 currently lists 151 recruiting studies that include Cannabis, drawn from the U.S. registry and rewritten for real people so you can see what each is testing and who it's for.
- How do I know if I qualify for a Cannabis trial?
- Each study lists its own eligibility criteria — rules about condition, age, and prior treatments. On every Clin2 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.
- Is Cannabis an approved treatment?
- A drug being studied in a trial may be investigational (still being tested) or already approved and being studied for a new use. Each study page explains what phase it's in. Clin2 does not provide medical advice — talk with your doctor about whether Cannabis or a specific trial is right for you.
Related treatments
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. A drug appearing here is being studied in a trial and may be investigational. Talk with your doctor about whether a specific treatment or trial is right for you.