Clinical trials
Cannabis clinical trials
Below are recruiting cannabis clinical trials, each written for real people, not researchers. We’re tracking 149 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07815691RecruitingPhase 2
Cannabis and the brain reward system study
This study looks at how cannabis affects your brain's reward system using MRI scans. It aims to understand why some people develop cannabis use disorder, which may lead to better treatments.
Charleston, South CarolinaAges 21–45 - NCT06446479RecruitingPhase 2
THC's effect on alcohol use and brain reward
This study tests whether THC (the active ingredient in cannabis) can change how much alcohol you drink and how your brain responds to rewards. You will have MRI scans and take THC or a placebo, then drink alcohol in a controlled setting.
Aurora, ColoradoAges 21–40 - NCT06701487Recruiting
Brain learning mechanisms and substance use control
This study looks at how certain learning mechanisms in the brain (called Pavlovian conditioning) influence your ability to control alcohol or drug use. It may help explain why some people have trouble stopping, and could lead to better treatments. You'll fill out questionnaires and likely have a brain scan (MRI).
DresdenAges 18–65 - NCT07603518RecruitingPhase 1
How a Hemp Topical Product Works in Your Body
This Johns Hopkins study tests a hemp-based cream to understand how your body absorbs and processes it. You'll stay overnight in the clinic and let researchers measure the product's effects, which could help develop better cannabis-based treatments.
Baltimore, MarylandAges 18–55 - NCT07594496Enrolling by invitation
Cannabis Withdrawal in Blood Cancer Patients During Stem Cell Transplant
This study looks at whether patients with blood cancers who use cannabis experience withdrawal symptoms when hospitalized for stem cell transplant or CAR-T therapy (a type of immunotherapy). Understanding these symptoms could help doctors better support patients during treatment.
Scottsdale, ArizonaAges 18 years+ - NCT06747039Recruiting
Cannabis extract for fibromyalgia pain
This trial tests a cannabis extract called Avextra 10/10 for people with fibromyalgia who haven't gotten better with standard treatments. It aims to see if this option can help manage pain and other symptoms.
Milan, MilanoAges 18 years+ - NCT07524985Recruiting
Cannabis Use Study: Understanding Effects in Daily Users
This study looks at how cannabis affects people who use it regularly in their daily lives. Researchers will use a smartphone app to track your experiences and better understand cannabis use in the general population.
Montreal, QuebecAges 18 years+ - NCT07456579Enrolling by invitation
Alcohol and cannabis use in pregnancy
This study looks at alcohol and cannabis use during pregnancy by asking new mothers about their habits and testing newborn stool samples (meconium). The goal is to understand how common these substances are among pregnant women in Slovenia and how they might affect babies.
LjubljanaAges Any age - NCT07439471Recruiting
Study on tobacco and cannabis co-use in young adults
This study looks at why and how young adults use both tobacco and cannabis together. It may help understand patterns of use and improve future health programs.
Buffalo, New YorkAges 18–30 - NCT07403266RecruitingPhase 3
Full-spectrum cannabis oil for seizures in tuberous sclerosis
This trial tests a full-spectrum cannabis extract to see if it reduces seizures in people with tuberous sclerosis complex (TSC) whose seizures have not been controlled by other treatments. If it works, it could offer a new option for managing hard-to-treat epilepsy.
MadridAges 2–65 - NCT07398443Recruiting
Study of marijuana and tobacco use in young adults
This study looks at how young adults use both marijuana and tobacco, and aims to understand their behaviors. It involves tasks and questionnaires, and may help develop better support for people who use both substances.
Providence, Rhode IslandAges 18–25 - NCT05985850RecruitingPhase 2
Can cannabis help with opioid addiction treatment?
This trial tests if adding a specific cannabis product to standard methadone treatment helps people with opioid use disorder. It's for adults over 25 who recently started methadone and have used cannabis before.
Vancouver, British ColumbiaAges 25 years+ - NCT07362407Enrolling by invitation
Cannabinoid treatment study for patients in Brazil
This study tracks how cannabis-based medicines work in real life. It looks at how people feel and function while using these treatments prescribed by their doctor.
Florianópolis, Santa CatarinaAges 18 years+ - NCT07339150Recruiting
App to reduce alcohol and marijuana use in college students
This trial tests a mobile app designed to help college students reduce their drinking and marijuana use. If you're a student who has had alcohol in the last 90 days, this may be a way to get support.
Charlotte, North CarolinaAges 18–26 - NCT07222306Enrolling by invitation
Cannabis, brain inflammation, and suicidal thoughts brain imaging study
This study uses brain scans to see how cannabis affects inflammation and suicidal thoughts. You may join if you're already in a related study and can safely undergo MRI and PET scans.
Detroit, MichiganAges 19–69 - NCT07225738Recruiting
Multiple Myeloma treatment and cannabis use study
This study follows people with newly diagnosed multiple myeloma to see how their cancer treatments and use of medications, including cannabis, affect their health. It will help doctors learn more about what works best.
Goodyear, ArizonaAges 18 years+ - NCT07199218RecruitingPhase 2
Cannabis oil for autism in children aged 4 to 12
This trial tests a cannabis oil enriched with terpenes (natural compounds that may affect behavior) to see if it helps reduce severe symptoms in children with autism. It compares the oil to a placebo.
Jerusalem, N/A = Not ApplicableAges 4–13 - NCT07202351Recruiting
Sleep support for quitting smoking or cannabis
This trial tests whether adding sleep-focused help to standard quit-smoking or quit-cannabis therapy improves your chances of success. It is for people who are not already being treated for sleep problems.
Paris, Île-de-France RegionAges 18 years+ - NCT07056894Recruiting
Cognitive training for substance use in early psychosis
This study tests a computer-based cognitive training program to help people with early psychosis reduce their alcohol and cannabis use. The program is designed to improve thinking skills and may make it easier to cut back on substance use.
St. John's, Newfoundland and LabradorAges 16–30 - NCT05337033RecruitingPhase 2
Testing cannabis for chronic headaches in teens
This trial studies whether cannabis can reduce chronic migraine headaches in adolescents who have not improved with other treatments. It also asks participants to work with psychology and physiotherapy during the study.
Vancouver, British ColumbiaAges 14–17 - NCT06995937Recruiting
Medical marijuana and driving on a real road
This study looks at how medical marijuana affects driving ability in older adults with chronic pain. Participants will do a driving test on a real road to see if marijuana use changes driving performance.
Gainesville, FloridaAges 50 years+ - 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 - NCT06457841Recruiting
Stress and Resilience in Afro-Descent Adults
This study looks at how stress and resilience affect people who use alcohol or cannabis to cope. It's for adults of Afro-descent who have used alcohol or cannabis at least a few times recently and are not in treatment for substance use.
Dallas, TexasAges 18–30
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Common questions
- Are there clinical trials for cannabis?
- Yes. Clin2 currently lists 149 recruiting cannabis 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 cannabis 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 cannabis 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.