Clinical trials
Addiction clinical trials
Below are recruiting addiction clinical trials, each written for real people, not researchers. We’re tracking 201 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05973838Recruiting
Telemedicine support plus recovery coaching for multiple drug use
This study tests whether adding peer recovery support to a phone/video treatment program helps people stay in treatment longer and reduce polysubstance use. It focuses on adults in opioid use disorder care who have used other non-prescribed substances in the last three months.
Washington D.C., District of ColumbiaAges 18 years+ - NCT05964010Recruiting
Parent-and-teen program for teen health visits
This trial offers a structured support program for teenagers and their primary caregiver during a primary care visit. It may help by testing an approach that connects youth and families with resources and support starting at the clinic visit.
New York, New YorkAges 12–17 - NCT05943171Recruiting
App-based CBT for substance dependence and relationship aggression
This study tests an app-guided version of CBT (a structured talk-therapy approach) against standard CBT to help people with substance dependence and recent verbal aggression in an intimate relationship. You may be screened to see if you fit both the substance use and relationship aggression parts of the trial.
Rochester, New YorkAges 18–65 - NCT05861752Recruiting
Study of sexual risk behaviors and mental health patterns
This case-control study looks at people with specific sexual behavior-related conditions (like certain paraphilias, compulsive sexual behavior, or sex during sleep) to understand factors linked with risk for sexual violence. The goal is to learn what patterns may be involved so better help and prevention strategies can be developed.
Stockholm, Stockholm CountyAges 18 years+ - NCT05859347Recruiting
Brain stimulation study for cannabis use disorder
This trial tests whether a treatment called repetitive transcranial magnetic stimulation (a non-surgical magnetic stimulation to the brain) can help people reduce or stop cannabis use. You may be eligible if you have cannabis use disorder and meet specific safety and symptom criteria.
Toronto, OntarioAges 18–65 - NCT05744479RecruitingPhase 4
Metformin to reduce weight gain from antipsychotic medicines
This trial tests whether metformin can help adults with intellectual disability who gained weight from long-term antipsychotic medicines. If you qualify, you may be assigned metformin to improve weight and related health measures.
Toronto, OntarioAges 16–65 - NCT05702021Recruiting
Using counseling incentives to reduce stimulant use in opioid clinics
This trial tests a counseling approach called “contingency management,” which uses structured incentives to reduce stimulant use. It’s meant for people receiving treatment in specialty addiction programs and/or newly starting opioid-use medication who also use stimulants.
Chicago, IllinoisAges 18 years+ - NCT05636137Enrolling by invitation
Study links internet habits with pain and body awareness
This study asks high school students about internet use, musculoskeletal pain (pain in muscles and bones), and body awareness (how well you notice your body). It aims to understand whether these things are connected and may help guide future supports for teens.
Muğla, MenteşeAges 15–18 - NCT05627492Recruiting
DBT booster sessions for youth at bipolar risk
This study adds short “booster” sessions to Dialectical Behavior Therapy (DBT) for young people who already took part in a prior DBT study, including those with bipolar symptoms or strong family risk. It aims to see if extra DBT support helps mood and coping over time.
Toronto, OntarioAges 14–25 - NCT05515354RecruitingPhase 4
Smoking quit plan matched to your menstrual cycle phase
This Phase 4 study tests a smoking-quit treatment plan timed to your menstrual cycle. It may help you quit smoking and learn how quitting support works for people who menstruate regularly.
Toronto, OntarioAges 18–40 - NCT05526196Recruiting
Study how cannabis and tobacco affect reaction and feelings
This study tests how cannabis and tobacco—used together or separately—affect your thinking speed, how you feel, and body responses. You may help researchers understand these effects under controlled conditions, which could be useful for safer use and treatment decisions.
Toronto, OntarioAges 19–45 - NCT05529927RecruitingPhase 2
Dexamphetamine given long-acting to reduce cocaine use
This Phase 2 study tests whether a long-acting form of dexamphetamine can reduce cocaine use in people with moderate to severe cocaine use disorder. It also checks safety, including heart and mental health side effects, while you attend study visits regularly.
The HagueAges 18 years+ - NCT05489068Recruiting
Motivational interviewing approach for people starting addiction treatment
This study compares two ways of having conversations when you begin outpatient addiction treatment. It tests whether a motivational interviewing style at intake improves your engagement and involvement in your care.
Albuquerque, New MexicoAges 18 years+ - NCT05490589Recruiting
Parenting program for parents affected by alcohol use
This trial tests a structured parenting program for parents of children ages 4 to 12 when the parent (or spouse) has an alcohol use disorder. It may help families by supporting parenting skills and improving day-to-day family functioning.
BrestAges 18 years+ - NCT05117255Recruiting
Online therapy study for anxiety in residential alcohol treatment
This study tests an internet-based, interactive version of cognitive behavioral therapy (CBT) for anxiety symptoms. It’s designed for people getting mainly alcohol-focused treatment in a residential program, to see if the online approach works and is feasible for you.
Minneapolis, MinnesotaAges 18–65 - NCT05338801Recruiting
Study menthol effects in e-cigarette users
This study tests how menthol in e-cigarettes affects addiction-related feelings and exposure. You may be asked to visit a lab and temporarily stop vaping before each session.
Miami, FloridaAges 21–35 - NCT05276050Recruiting
Brain-circuit treatment to help people with schizophrenia quit smoking
This study tests a circuitry-guided approach to help people with schizophrenia quit smoking. It may help reduce cravings and improve quitting, while also watching for safety issues.
Houston, TexasAges 22–65 - NCT05153382Recruiting
Dialectical behavior therapy for youth at bipolar risk
This trial tests whether a structured therapy called dialectical behavior therapy (DBT) helps young people with bipolar disorder or at risk for it, especially with self-harm or risky behaviors. It may help by teaching coping skills and improving safety and emotional control.
Toronto, OntarioAges 13–23 - NCT05142735Recruiting
NAC for early psychosis risk symptoms
This trial studies whether NAC (a nutrient-like supplement) can reduce symptoms in people who are at high risk for developing psychosis. It may help by testing a safer, non-standard treatment approach for early warning signs.
Toronto, OntarioAges 16–35 - NCT05142683Recruiting
Test an integrated care plan for teens with depression
This study tests whether a structured, coordinated care pathway helps teens (and their caregivers) manage depression better than usual care. It aims to see if targeted treatment and follow-up improve depression symptoms over time.
Toronto, OntarioAges 13–18 - NCT05153369Recruiting
DBT-based care for youth at risk for bipolar disorder
This study tests a structured, “DBT-informed” care program for young people who either have bipolar disorder or are at family risk for it. It may help by offering closer, organized support aimed at preventing or reducing mood problems.
Toronto, OntarioAges 13–23 - NCT05062369Recruiting
Brain stimulation plus training to support alcohol abstinence
This study tests whether a combination of brain stimulation (tDCS) and cognitive training can help people with alcohol use disorder stay abstinent. You may be included if you are currently not drinking and can commit to the program timeline.
Minneapolis, MinnesotaAges 18–65 - NCT05033028RecruitingPhase 3
Using a smartphone to support opioid addiction recovery
This Phase 3 study tests whether using smartphones can help people with opioid-use disorder stick with treatment and recover more successfully. It focuses on people starting or already in treatment using methadone or buprenorphine, with support delivered through the study app or messages.
Piscataway, New JerseyAges 18–85 - NCT04946851Enrolling by invitation
Alcohol use study for adults who join the NIAAA screening
This study uses a brain-and-behavior “assessment” (neuroclinical testing) to better understand addiction. You may be tested only if you are an adult and are enrolled in the NIAAA screening program, and you cannot join if you are acutely intoxicated.
Bethesda, MarylandAges 18–99
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Common questions
- Are there clinical trials for addiction?
- Yes. Clin2 currently lists 201 recruiting addiction 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 addiction 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 addiction 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.