Treatment
Thc clinical trials
We’re tracking 38 recruiting studies that include Thc, each written for real people, not researchers, below.
Recruiting studies
- NCT07105449Recruiting
Testing high-potency cannabis concentrates in regular users
This study looks at how high-potency cannabis concentrates affect people who already use cannabis a few times a week. You will be asked to vape a concentrate and then have your reactions monitored.
Toronto, OntarioAges 19–55 - NCT05906511RecruitingEarly Phase 1
Study how THC levels change in older adults
This early study measures how a THC dose (by mouth or vaporized form) moves through the body and how it affects the body’s responses. It mainly looks at safety and how THC behaves in older adults, including people who have used cannabis before.
West Haven, ConnecticutAges 65 years+ - NCT06948136RecruitingPhase 1
THC effects in older adults trial
This trial studies how a single dose of THC (the active ingredient in cannabis) affects older adults. It aims to understand the effects in this age group, which may help guide safe use.
West Haven, ConnecticutAges 21 years+ - NCT06378957RecruitingPhase 1
THC and d-limonene for cannabis anxiety
This study tests if a natural compound called d-limonene (found in citrus oils) can reduce anxiety that some people feel after using high-THC cannabis. You'll receive THC and d-limonene in capsules under medical supervision.
Baltimore, MarylandAges 21–55 - NCT06609083RecruitingPhase 1
How cannabis affects cigarette smoking
This study looks at how cannabis affects cigarette smoking habits. If you smoke every day and also use cannabis weekly, researchers want to see if cannabis changes how much you smoke.
Baltimore, MarylandAges 21 years+ - NCT06609109RecruitingPhase 1
Testing how cannabis affects e-cigarette use
This study is for daily e-cigarette users who also use cannabis at least once a week. It tests how cannabis affects vaping behavior. Researchers want to see if using cannabis changes how much or how people vape.
Baltimore, MarylandAges 21 years+ - NCT06647524RecruitingPhase 2
How cannabis affects the aging brain
This study uses brain scans (fMRI) to see how THC (the active ingredient in cannabis) affects the brain as people age. If you are a cannabis user without current dependence or health issues, you may help researchers understand these effects.
Hartford, ConnecticutAges 18–75 - NCT06671977RecruitingPhase 1
Safety and effects of DMT in healthy adults and those with depression
This trial studies the safety and effects of DMT, a psychedelic compound, in healthy volunteers and people with major depressive disorder (MDD) who haven't responded well to antidepressants. It aims to see how DMT affects the brain and mood.
West Haven, ConnecticutAges 21–65 - 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 - NCT04436081RecruitingPhase 2
CBD oil without THC for agitation in Alzheimer’s dementia
This trial studies whether a THC-free CBD oil softgel can reduce agitation in people with Alzheimer’s-related dementia. It compares CBD to a control to see if it improves difficult behaviors and is safe over the study period.
Norfolk, VirginiaAges 50–90 - NCT05269628RecruitingPhase 2
Cannabidiol for multiple sclerosis sleep and pain patterns
This study looks at whether cannabidiol (CBD, a cannabis-related medicine) can improve symptoms in people with multiple sclerosis (MS), especially how sleep and pain type affect outcomes. It’s mainly for people with MS and ongoing moderate-to-severe pain, while carefully checking safety and medication interactions.
Ann Arbor, MichiganAges 18–65 - NCT05322213RecruitingPhase 1
THC study for blood sugar control in type 2 diabetes
This early-phase study tests how THC (the main cannabis ingredient) affects blood sugar levels in people with type 2 diabetes. It may help researchers understand whether THC changes glucose control and what risks come with it.
La Jolla, CaliforniaAges 21–70 - 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+ - 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 - 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 - NCT06601218RecruitingPhase 1
Daily oral cannabis for cancer patients with solid tumors
This trial tests whether taking a daily oral cannabis (marijuana) dose is safe for people with advanced solid tumors (cancer that has spread). It's looking for people who are already on a stable cancer treatment and want to see if adding cannabis affects their symptoms or how they feel.
Lexington, KentuckyAges 18 years+ - NCT06859710RecruitingPhase 1
THC and CBD as a harm reduction strategy
This study looks at whether different types of cannabis (containing THC and/or CBD) might help people who use cannabis regularly reduce potential harms. You will be asked to take cannabis in a controlled setting and complete tasks and questionnaires.
Los Angeles, CaliforniaAges 21–55 - NCT06859723RecruitingPhase 1
Effects of high potency cannabis on daily users
This study tests how high potency cannabis affects mood, thinking, and pain sensitivity in people who smoke cannabis almost every day. It will help researchers understand both immediate and long-lasting effects.
Los Angeles, CaliforniaAges 21–55 - NCT07656350Recruiting
Cannabis-like drug and sleep loss study for anxiety
This study tests whether a cannabis-like drug can help people with higher-than-normal anxiety cope with a night of very little sleep. You will be asked to sleep only 4 hours on one occasion.
London, LondonAges 18–60 - NCT07661459RecruitingPhase 2
Antihistamine and aspirin with immunotherapy for solid tumors
This trial tests whether taking a daily antihistamine (like Claritin) and a daily aspirin alongside your immunotherapy can make the treatment work better. It's for people with solid tumors who are about to start a PD-1 or PD-L1 blocker.
Lexington, KentuckyAges 18–99 - NCT07603518RecruitingPhase 1
How a Hemp Topical Product Works in Your Body
This Johns Hopkins study tests a hemp-based cream to understand how your body absorbs and processes it. You'll stay overnight in the clinic and let researchers measure the product's effects, which could help develop better cannabis-based treatments.
Baltimore, MarylandAges 18–55 - NCT06446479RecruitingPhase 2
THC's effect on alcohol use and brain reward
This study tests whether THC (the active ingredient in cannabis) can change how much alcohol you drink and how your brain responds to rewards. You will have MRI scans and take THC or a placebo, then drink alcohol in a controlled setting.
Aurora, ColoradoAges 21–40 - NCT06017622Recruiting
THC Levels in Young People with Cannabis Overdose in the ER
This study looks at the amount of THC (the active ingredient in cannabis) in the blood of children and teens who come to the emergency room with severe drowsiness or confusion after using cannabis. It will help doctors better understand how cannabis affects young people.
Worcester, MassachusettsAges Any age - NCT06891235Recruiting
Testing cannabis use with mouth swabs
This study tests whether mouth swabs can detect recent cannabis use. If you use cannabis at least once a week and are between 18 and 30, you may be able to join.
Boston, MassachusettsAges 18–30
What Thc is being studied for
Conditions with recruiting Thc studies.
Common questions
- Are there clinical trials studying Thc?
- Yes. Clin2 currently lists 38 recruiting studies that include Thc, 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 Thc 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 Thc 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 Thc 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.