Clinical trials
Cannabis Use Disorder, Severe clinical trials
Below are recruiting cannabis use disorder, severe clinical trials, each written for real people, not researchers. We’re tracking 93 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06125054RecruitingPhase 2
Ketamine and brain training for cocaine addiction
This trial tests whether a combination of ketamine (a medicine that may help the brain change) and neurofeedback training (a brain-exercise technique) can help people with cocaine addiction. The goal is to see if these treatments can improve brain flexibility and reduce cravings.
Zurich, Canton of ZurichAges 18–55 - NCT07532460Recruiting
Study of brain channels and memory in cocaine users
This research explores how certain brain chemicals (potassium channels) affect memory and thinking in people who use cocaine regularly. The study may help develop better treatments for cocaine use disorder and related thinking problems.
Zurich, Canton of ZurichAges 20–50 - NCT07148843RecruitingPhase 2/Phase 3
CBD for alcohol withdrawal and cravings
This study tests whether adding CBD (a cannabis compound that doesn't get you high) to usual care can help reduce alcohol withdrawal symptoms and cravings. It may offer a new way to support people trying to cut down or stop drinking.
Baltimore, MarylandAges 21–65 - NCT07118618RecruitingPhase 2
Probenecid for alcohol cravings and drinking
This study tests if the medication probenecid can help reduce cravings for alcohol and the amount you drink. It is for people who drink heavily and have moderate to severe alcohol use disorder.
Providence, Rhode IslandAges 18 years+ - NCT06265506Recruiting
Virtual Reward Program for Cutting Back on Heavy Drinking
This study tests a virtual program that rewards you for reducing heavy drinking. You'd use a phone app, check in via Zoom, and get a glimpse into your drinking patterns through a blood test. It might be a good fit if you want to cut back on heavy drinking without going to an in-person clinic.
Spokane, WashingtonAges 18 years+ - NCT06899594RecruitingEarly Phase 1
Psilocybin for quitting methamphetamine
This trial tests whether psilocybin (a psychedelic medicine) can help people quit methamphetamine. You'll receive counseling before, during, and after the drug session, and your progress will be followed for several months.
Shreveport, LouisianaAges 25–65 - NCT06793488RecruitingEarly Phase 1
Anxiety and alcohol use disorder treatment study
This study tests whether a medication called disulfiram (Antabuse) can help people with alcohol use disorder (AUD) feel less anxious when they stop drinking. Researchers will also use brain scans (MRI) to look at how the brain changes during early abstinence.
New York, New YorkAges 21–55 - NCT06752759RecruitingPhase 3
Ketamine mist for depression
This trial tests if a ketamine mist you breathe in can help treat moderate to severe depression. It is for adults who are not helped enough by other treatments.
Brooklyn, New YorkAges 18–88 - NCT06582888RecruitingEarly Phase 1
VR attention test for smoking cravings
This study tests whether a virtual reality (VR) program can measure how your brain pays attention to smoking cues. It also involves taking a medication called varenicline (Chantix) to see if it reduces cravings. You may be eligible if you are a daily smoker, have been smoking for at least 3 years, and are not ready to quit in the next month.
San Diego, CaliforniaAges 22 years+ - 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+ - NCT06494891RecruitingPhase 2
Understanding motivation for IV alcohol drinking
This study looks at why people with alcohol use disorder choose to drink alcohol given through an IV. The goal is to better understand the motivation behind drinking, which could help improve treatments.
Los Angeles, CaliforniaAges 21–65 - NCT06136195RecruitingPhase 1
Mavoglurant for alcohol craving in heavy drinkers
This trial tests whether a medication called mavoglurant can reduce alcohol cravings and drinking in people who are heavy drinkers with alcohol use disorder and are not looking for treatment.
New Haven, ConnecticutAges 21–50 - 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+ - NCT05008146RecruitingEarly Phase 1
Brain imaging study for cocaine use disorder interactions
This early-phase study uses brain imaging to understand how cocaine use disorder affects brain function. It may help researchers learn more about brain pathways involved in craving and treatment targets.
Pittsburgh, PennsylvaniaAges 18–55 - 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 - NCT04043442Enrolling by invitationPhase 2
Brain stimulation study for alcohol use with mild brain injury
This trial tests a type of brain stimulation to help with day-to-day functioning in people who have alcohol use disorder and a history of mild traumatic brain injury. It also uses brain and symptom testing to see who may benefit most and why.
Hines, IllinoisAges 22–65 - NCT07160153Recruiting
Cannabis Abstinence and Brain Function in Teens
This trial looks at how cannabis affects brain function in teens aged 15–18 who have cannabis use problems. You'll have two neuropsychological tests (like thinking and memory tasks) to see if staying off cannabis helps your brain work better.
Pilsen, CzechiaAges 15–18 - NCT05837845RecruitingPhase 2
MDMA plus therapy versus therapy alone for severe PTSD
This Phase 2 study compares MDMA-assisted Cognitive Processing Therapy (a structured talk-therapy) to Cognitive Processing Therapy alone for Veterans with severe PTSD. It aims to see whether adding MDMA helps reduce PTSD symptoms and improve recovery.
Palo Alto, CaliforniaAges 18 years+ - NCT06991205Recruiting
Web mind-body program for pain and substance use
This trial tests a web-based mind-body program to help people who have ongoing arm or hand pain and also use substances like alcohol or cannabis. It aims to improve resilience and reduce pain without requiring in-person visits.
Boston, MassachusettsAges 18 years+ - 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 - 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
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Common questions
- Are there clinical trials for cannabis use disorder, severe?
- Yes. Clin2 currently lists 93 recruiting cannabis use disorder, severe 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 disorder, severe 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 disorder, severe 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.