Clinical trials
Cannabis Use clinical trials
Below are recruiting cannabis use clinical trials, each written for real people, not researchers. We’re tracking 104 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- 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 - 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 - 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 - 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+ - NCT06085222Recruiting
App and computer study for stress in daily cannabis users
This study tests if a smartphone app and computer program can help regular cannabis users manage stress. It is for people who use cannabis daily or nearly daily and feel stressed.
Tallahassee, FloridaAges 18–30 - NCT06569394RecruitingPhase 2
Testing CBD in young adults who use cannabis heavily
This study tests whether cannabidiol (CBD) can help young adults who use cannabis heavily but aren't looking to quit. You'll take a CBD pill and see if it changes your cannabis use or related symptoms.
Aurora, ColoradoAges 18–25 - NCT06743373Recruiting
Cannabis and sleep in young adults
This study looks at how cannabis affects sleep, daily rhythms, and sensitivity to light in young adults. You would either stop using cannabis for 4 weeks (if you are a regular user) or serve as a non-user control, to compare sleep patterns.
Pittsburgh, PennsylvaniaAges 18–25 - NCT06575751RecruitingPhase 2
Study of cannabidiol and cannabis concentrate users
This study looks at how cannabidiol (a compound in cannabis) affects people who regularly use strong cannabis concentrates like wax, shatter, or oil. It may help understand if using CBD can change how cannabis affects the body or help with cannabis use disorder.
Aurora, ColoradoAges 25–60 - 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 - NCT06967051Recruiting
Smartphone test of pupil response after cannabis use
This study uses a smartphone app to measure how your pupils react to light after using cannabis. It aims to see if the app can detect recent cannabis use, which could help develop a quick, non-invasive test.
London, OntarioAges 21 years+ - NCT07496489Enrolling by invitation
Study on cannabis edible package warnings
This study looks at how people view warning labels on cannabis edibles packaging. Your thoughts could help improve health messages.
Winston-Salem, North CarolinaAges 18–65 - NCT07513337Enrolling by invitation
How Cannabis Labels and Marketing Affect Users
This study investigates how different labels and marketing descriptions of cannabis products influence what people expect and experience. Researchers will compare your reactions to various cannabis products to understand how information shapes use patterns.
Baltimore, MarylandAges 21 years+ - 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 - 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 - 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 - NCT05991882Recruiting
Mobile app study for young adults who use alcohol and marijuana
This trial tests a mobile app (phone-based) program for young adults who use both alcohol and marijuana. It aims to help you reduce risky use and improve your confidence in handling these substances.
Honolulu, HawaiiAges 18–30 - 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+ - 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 - 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 - 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 - NCT05160688Enrolling by invitation
Study of brain and mood changes when stopping cannabis
This study looks at how thinking (cognition) and psychiatric symptoms (mood/mental health symptoms) change during a period without cannabis. It uses special matched twin pairs to compare changes after stopping.
Aurora, ColoradoAges 31–47 - NCT06206252Recruiting
Can Medical Cannabis Help Reduce Opioid Use?
This study tests whether medical cannabis can help people who take opioids for long-term pain reduce their opioid use. Participants will either use medical cannabis or continue without it for 3 months.
Philadelphia, PennsylvaniaAges 18 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 - NCT04871048Recruiting
tDCS training to reduce cannabis use in people with schizophrenia
This trial tests whether a non-painful brain stimulation method (tDCS) can help people with schizophrenia who also have moderate-to-severe cannabis use disorder reduce or quit cannabis. It also involves MRI scanning to help study brain changes.
BronAges 18–60
Hear when a new Cannabis Use trial opens
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Common questions
- Are there clinical trials for cannabis use?
- Yes. Clin2 currently lists 104 recruiting cannabis use 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 use 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 use 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.