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
- 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 - NCT06266611RecruitingPhase 2
Cannabis for cancer symptom relief
This trial tests whether cannabis can help cancer patients manage symptoms like sleep trouble, pain, and mood changes. It's for people who are new to using cannabis for these issues.
Aurora, ColoradoAges 25 years+ - NCT06736444Recruiting
Sleep and Substance Use Help for Young Adults
This study tests a brief program to help young adults who struggle with sleep and also use alcohol or cannabis. The program teaches skills to improve sleep quality and reduce risky substance use.
Seattle, WashingtonAges 18–29 - NCT06699251Recruiting
Brief chat with your doctor about alcohol or cannabis for teens
This study tests whether a short, one-time conversation with a primary care provider can help teens who are at risk for alcohol or cannabis use. It's designed for young people ages 12–17 who get care at two specific health systems.
Commerce, CaliforniaAges 12–19 - NCT06688539RecruitingPhase 4
Quitting e-cigarettes in adults who also use cannabis
This trial tests if varenicline, a stop-smoking medication, can help people ages 18 to 40 quit e-cigarettes while also using cannabis. It's designed for regular e-cigarette users who want to quit and who use cannabis at least 10 days per month.
Charleston, South CarolinaAges 18–40 - 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 - NCT06290063RecruitingPhase 2
CBD for older adults who use cannabis
This study tests whether a pure CBD product (Epidiolex) can help older adults who use cannabis occasionally. It looks at how CBD affects people who already take medications for pain, sleep, or mood issues.
Boulder, ColoradoAges 60 years+ - NCT06261489RecruitingPhase 2
Cannabis for bladder problems in multiple sclerosis
This study tests whether cannabis, with either THC or CBD, helps with bladder and urinary symptoms caused by multiple sclerosis. It compares two types of cannabis to see which works better.
Calgary, AlbertaAges 26–59 - NCT06235632Enrolling by invitation
Selling to intoxicated customers: a study for Oregon stores
This study tests ways to help marijuana and alcohol stores in Oregon sell responsibly to customers who may be intoxicated. If you work at a store, you can join to help improve safety practices.
Golden, ColoradoAges 21 years+ - NCT06239350Recruiting
Young adult tobacco and cannabis co-use study
This study tests a program to help young adults who use both nicotine and cannabis products reduce or quit nicotine use. If you are between 18 and 25, use nicotine products at least 20 days a month and cannabis at least 10 days a month, and want to quit nicotine, you may be eligible.
Charleston, South CarolinaAges 18–25 - NCT06206941Recruiting
Cannabis for pain in cancer immunotherapy patients
This study looks at how cannabis affects symptoms in cancer patients who are getting immunotherapy. It may help understand if cannabis can improve pain and quality of life during treatment.
Portland, OregonAges 18 years+ - NCT06099379RecruitingPhase 1/Phase 2
How CBD changes THC's effects: a dose study
This study tests different ratios of CBD to THC to see how CBD can change the effects of THC. It may help people who use cannabis occasionally understand how CBD can reduce unwanted side effects.
Montreal, QuebecAges 21–49 - NCT06037681Recruiting
Study on cannabis use and pain outcomes in Black and white patients with cancer
This study looks at how cannabis affects pain and daily life in Black and white patients with solid tumors. It compares people who use cannabis at least once a week to those who don't use it at all.
Buffalo, New YorkAges 21–99 - NCT06036316Recruiting
Language and memory study for people with psychosis
This study looks at how language and memory interact in people with psychosis, including those at risk, early psychosis, or schizophrenia, as well as healthy volunteers. It aims to understand these connections better, which may help improve care.
Laxou, FranceAges 16–55 - NCT05989841RecruitingPhase 1/Phase 2
Helping women after sexual assault who use cannabis
This study tests a new approach to help women who have recently experienced a sexual assault and use cannabis. It explores whether reducing anxiety about physical symptoms can help prevent long-term PTSD and cannabis problems.
Minneapolis, MinnesotaAges 18 years+ - NCT05865470RecruitingPhase 1
How age affects smoked and oral THC effects
This early-stage study compares how people in different age groups respond to THC taken by smoking versus by mouth. It aims to understand age-related differences in effects and safety, which could help guide safer use in the future.
Los Angeles, CaliforniaAges 18–65 - NCT05814822Recruiting
CBT for sleep problems in adults using cannabis
This study looks at a sleep-focused treatment to help adults who have ongoing insomnia and also use cannabis regularly. If sleep improves, the trial hopes it may also improve overall outcomes for cannabis use.
Ann Arbor, MichiganAges 21 years+ - NCT05514899RecruitingPhase 2
Cannabidiol and THC study for gut health and brain inflammation in HIV
This Phase 2 study tests whether cannabidiol (CBD) and tetrahydrocannabinol (THC) change the gut microbiome and brain-related inflammation in people with HIV. It may help researchers understand new ways to reduce inflammation, but you would need strict cannabis and CBD/THC avoidance during the study.
San Diego, CaliforniaAges 21–70 - 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).
San Diego, CaliforniaAges 21 years+ - NCT05119244Recruiting
Study of environment factors in lung cancer
This study looks at how environmental factors may relate to lung cancer in adults. If you are between 18 and 59 and were treated for primary lung cancer at a participating hospital, you may be able to join.
Le Plessis-RobinsonAges 18–59 - NCT05052541RecruitingPhase 3
Oral cannabis for long-term spine pain
This trial studies whether taking cannabis by mouth can safely reduce chronic spine pain and improve daily comfort. You may be eligible if you have long-lasting spine pain and can follow study rules about stopping or limiting other cannabis and certain other treatments.
Aurora, ColoradoAges 21–84 - NCT04883255RecruitingEarly Phase 1
Study cannabis effects on brain function in adults with HIV
This early-phase study looks at how cannabis (and the body’s cannabinoid system) may affect thinking and brain-related measures in people with HIV. You may be asked to avoid cannabis and complete several brain and health assessments to see how these factors relate.
San Diego, CaliforniaAges 18–65
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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.