Treatment
Cannabis clinical trials
We’re tracking 151 recruiting studies that include Cannabis, each written for real people, not researchers, below.
Recruiting studies
- NCT03909477Recruiting
Study of MRI brain scans in cannabis smokers over time
This study follows people who currently or used to smoke cannabis to see how cannabis use may change certain MRI scan signals in the brain over time. You may help researchers understand the effects of cannabis smoking and how brain imaging changes can be measured safely.
London, OntarioAges 18–85 - NCT06576076Recruiting
Cannabis, emotions, and risk study for teens
This study explores how daily cannabis use affects emotions and risk behaviors in teenagers. You'll answer quick surveys on your phone and wear a Fitbit for up to 3 months.
Boston, MassachusettsAges 12–18 - NCT06259916Recruiting
EEG to tell alcohol vs. cannabis intoxication
This study uses electroencephalography (EEG) to see if brain activity can tell whether you are drunk, high, or both. Results might help improve safety in the future.
Fort Collins, ColoradoAges 21–50 - NCT04816994RecruitingPhase 3
Cannabis extract for nerve back pain and painkiller needs
This trial studies whether a cannabis extract can reduce acute nerve-related pain in the back and lessen how much pain medication you need. It may help people with a short-term episode of “shooting” nerve pain from the spine.
JerusalemAges 18–70 - NCT06124846Recruiting
Cannabis break and brain changes in teens
This study looks at what happens in the brain when teens with cannabis use disorder stop using cannabis for 6 weeks. It uses MRI scans to see changes in areas that control habits and decisions.
Minneapolis, MinnesotaAges 15–18 - NCT05602649RecruitingPhase 1
How cannabis edible type changes drug levels in your body
This Phase 1 study tests how different cannabis edible formulations affect how THC shows up in your blood and how your body responds. It may help researchers choose safer, more predictable edible products based on how people absorb and react to them.
Baltimore, MarylandAges 21–55 - NCT05526196Recruiting
Study how cannabis and tobacco affect reaction and feelings
This study tests how cannabis and tobacco—used together or separately—affect your thinking speed, how you feel, and body responses. You may help researchers understand these effects under controlled conditions, which could be useful for safer use and treatment decisions.
Toronto, OntarioAges 19–45 - NCT05401929Recruiting
TMS to reduce cannabis use in heavy users
This study tests whether transcranial magnetic stimulation (TMS) can help heavy cannabis users cut down or stop. TMS uses a magnetic coil on the scalp to gently stimulate parts of the brain involved in cravings and habits.
Durham, North CarolinaAges 18–65 - NCT04982965RecruitingEarly Phase 1
Study brain changes behind cannabis pain relief
This early study looks at how the brain may respond to cannabis to reduce long-lasting lower back pain. You may be asked to follow strict rules about cannabis, opioids, and safety checks (including MRI) to help researchers understand the brain mechanisms.
La Jolla, CaliforniaAges 21–65 - NCT04325958Recruiting
Test how cannabis affects driving in different age groups
This study looks at how smoked cannabis changes driving performance when compared across two age groups. It may help researchers understand safety risks and differences by age.
Toronto, OntarioAges 19–45 - NCT05863910Recruiting
Real-world study of medical cannabis use in children
This study looks at how medical cannabis is used for children and teens in everyday life, by collecting information through online questionnaires. It may help doctors and families better understand which uses are common and how people experience them.
Winnipeg, ManitobaAges 3–17 - NCT05704582Recruiting
Avatar vs supportive sessions to cut cannabis use
This study compares two types of talking/learning sessions—one using an “avatar” (computer-based character) and one using regular supportive sessions—to reduce cannabis use. It is meant for adults with psychotic disorders who also meet criteria for cannabis use disorder.
Montreal, QuebecAges 18 years+ - NCT07732062Recruiting
Emotion-focused therapy for chronic pain patients using medical cannabis
This study tests a new type of talking therapy (vEAET-H) to see if it helps people with chronic pain who are already using medical cannabis. The goal is to find out if adding this therapy can improve pain and well-being.
Tel AvivAges 18 years+ - NCT02480283Recruiting
Study of cannabis smoke and lung immune response
This study compares people who smoke cannabis daily with people who have never used cannabis. It looks at how cannabis smoke affects lung stress and the lungs’ immune defenses, using health tests and urine screening to keep participants safe.
Aurora, ColoradoAges 18–55 - NCT07701304Recruiting
Testing warning labels on cannabis products
This trial wants to see how different warning labels on cannabis products affect people's choices. You would look at product choices and answer questions. The goal is to find warning labels that help people make informed decisions.
Oklahoma City, OklahomaAges 21 years+ - NCT05092191RecruitingPhase 2
Cannabis pill study for MS-related muscle stiffness
This Phase 2 trial tests whether cannabis can reduce muscle stiffness (spasticity) in people with multiple sclerosis. You may be able to participate if your stiffness is not improving with your current treatments.
Montreal, QuebecAges 21 years+ - NCT07524088Recruiting
Hair Testing During Cannabis Poisoning in Young Children
This study examines whether cannabis can be detected in a young child's hair after accidental poisoning. Researchers will collect hair samples from children admitted to the emergency room with acute cannabis intoxication to understand how the drug affects children and improve detection methods.
ToulouseAges 3 months–3 years - NCT07489443Recruiting
Helping pregnant women reduce tobacco and cannabis use
This study is testing a program to help pregnant women and new mothers cut back on or quit using tobacco and cannabis. It’s designed to see if the program is easy to use and helps improve health for both mom and baby.
Pittsburgh, PennsylvaniaAges 18 years+ - NCT07459270Recruiting
Psychotic symptoms in methamphetamine users with and without cannabis
This study compares people who have psychosis from methamphetamine and also use cannabis with those who only have methamphetamine-induced psychosis. It aims to understand how cannabis may affect their symptoms.
Elâzığ, ElâzığAges 18–65 - NCT06379971RecruitingPhase 1
Choline for cannabis use in pregnancy
This trial tests whether taking choline (a vitamin-like nutrient) during pregnancy can help protect the baby's brain development in women who use cannabis. It aims to understand if choline supplementation can reduce potential risks linked to cannabis use.
Aurora, ColoradoAges 18–45 - NCT07423195Recruiting
Cannabis use during wisdom tooth removal study
This study looks at how cannabis use affects pain and recovery after wisdom tooth surgery. If you are 16 or older and need a lower wisdom tooth removed, you may be able to join.
Ann Arbor, MichiganAges 16–99 - NCT07379736Recruiting
Online support for heavy cannabis users
This trial tests a brief online advice program to help people who use cannabis heavily reduce their use. You take part from home and get personalized tips and support.
London, Greater LondonAges 18 years+ - 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 - NCT07354412Enrolling by invitation
Can cannabis affect anesthesia and inflammation in spine surgery?
This study looks at how using cannabis before or during lumbar spine surgery might affect anesthesia and inflammation. It compares patients who have used cannabis to those who have not, to see if there are differences in pain, recovery, or side effects.
Columbia, MissouriAges 18 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.