Clinical trials
Cannabis Use clinical trials
Below are recruiting cannabis use clinical trials, each written for real people, not researchers. We’re tracking 105 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- 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+ - 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 - NCT07167225Recruiting
E-cigarette and cannabis co-use in young adults
This study looks at how using e-cigarettes and cannabis together affects exposure to harmful chemicals in young adults aged 18-25. It aims to understand the risks of co-use to help guide healthier choices.
Buffalo, New YorkAges 18–25 - 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 - 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 - NCT01730781Recruiting
PET scan study to image cannabinoid receptors in the brain
This study uses a special brain scan (PET) to measure cannabinoid receptors—areas in the brain that interact with cannabis-like chemicals. It may help researchers better understand how these receptors relate to conditions such as schizophrenia, PTSD, opioid use disorder, or early psychosis risk.
New Haven, ConnecticutAges 18–55 - NCT04810858Recruiting
Study how chronic marijuana affects brain inflammation in HIV
This study looks at whether ongoing marijuana use changes “brain inflammation” and brain cell injury in people living with HIV. It may help researchers understand potential risks or protective effects and how treatment and brain health interact.
Winston-Salem, North CarolinaAges 25–59 - 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 - NCT06084520Recruiting
Pain questionnaire study for opioid and non-opioid patients
This study tests two questionnaires for people with long-term pain. Researchers want to see if the tools work well for both those taking opioids and those who are not. Your answers can help improve pain care.
Uppsala, UpplandAges 18–75
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 105 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.