Clinical trials
Substance Abuse clinical trials
Below are recruiting substance abuse clinical trials, each written for real people, not researchers. We’re tracking 39 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT03470480Recruiting
Brain stimulation for methamphetamine cravings
This study tests whether a non-invasive brain stimulation technique called repetitive transcranial magnetic stimulation (rTMS) can help reduce cravings for methamphetamine in people who have stopped using it for at least 4 weeks. If you are trying to stay off methamphetamine and struggling with cravings, this treatment might help.
Portland, OregonAges 18–65 - NCT05679284Recruiting
Study for retained needle fragments in people who inject drugs
This observational study looks at whether small pieces of drug-injection needles remain in injection sites. You may help by answering a questionnaire and getting X-ray images, which could improve how care and safety are handled for people who inject drugs.
TampereAges 18 years+ - NCT04141202Recruiting
Exercise program during short inpatient treatment for substance use
This trial tests a structured exercise program for people receiving short-term inpatient treatment for substance use. It may help improve health and recovery support during your stay.
TrondheimAges 18 years+ - NCT05562557Recruiting
Fatherhood program to improve outcomes and support families
This study partners with fathers to help improve family outcomes, especially when there are worries about substance use in the household. You may be able to join if you are a father caregiver and your family has an identified risk for substance use, and you speak English or Spanish.
The Bronx, New YorkAges 18 years+ - NCT07692984Recruiting
Alcohol and drug use in people with schizophrenia or bipolar disorder
This study looks at how alcohol and substance use affects people with schizophrenia or bipolar disorder. It aims to understand if having these conditions together changes treatment or outcomes.
Bolu, BoluAges 18–65 - NCT06650267RecruitingPhase 2
Substance use and family violence treatment for fathers
This study tests a treatment program for fathers who have both a substance use disorder and a history of family violence within the last 18 months. The goal is to see if the program helps reduce substance misuse and improve family relationships.
New Haven, ConnecticutAges 18 years+ - NCT05854667RecruitingPhase 2
High-dose lisdexamfetamine with rewards for meth use changes
This Phase 2 study tests high-dose lisdexamfetamine (a prescription stimulant) to help people reduce or stop methamphetamine use. It also uses “contingency management” (rewards tied to meeting goals) to encourage treatment participation and lower use.
Vancouver, British ColumbiaAges 18–55 - NCT06676059Recruiting
Substance use monitoring study with a smartphone app
This study uses a smartphone app and daily surveys to track alcohol or drug use. It aims to create a database for future research on addiction patterns and recovery.
Baltimore, MarylandAges 18–120 - NCT07637669Recruiting
Smell and decision-making in people with HIV and substance use
This study looks at how smell and decision-making are affected in people living with HIV and/or substance use disorders. You may join one of four groups based on your HIV status and substance use history, and you will complete smell tests and computer tasks, with an optional MRI.
Baltimore, MarylandAges 18–65 - NCT04294134Enrolling by invitation
Support program for mothers in residential substance treatment
This trial tests a support program for mothers (pregnant or with young children) who are in residential substance use treatment. It aims to improve well-being, family stability, and child safety—especially when children are at risk or in out-of-home placement.
Philadelphia, PennsylvaniaAges Any age - NCT06995885Enrolling by invitation
A study to improve tracking of opioid use in the fentanyl era
This study aims to develop a better tool for recalling and tracking opioid use patterns, especially with fentanyl. It may help people who use opioids outside of medical settings to more accurately report their use.
Baltimore, MarylandAges 18–99 - NCT06548490RecruitingPhase 2
Semaglutide for Opioid Use Disorder
This study tests whether a once-weekly injection of semaglutide (a GLP-1 receptor agonist) can reduce opioid use in people who are already on buprenorphine or methadone but still using opioids. It lasts about 19 weeks.
Baltimore, MarylandAges 18–75 - NCT06552741Recruiting
Screening for substance and alcohol use studies
This study screens people with or without past or current substance or alcohol use problems. It helps the researchers see if you might qualify for other studies at the NIDA research center.
Baltimore, MarylandAges 18–99 - NCT05630781Recruiting
Orexin's role in the neurobiology of addiction
This study looks at how a brain chemical called orexin affects addiction. Researchers will give a medication that blocks orexin to see if it helps reduce cravings or use. It might help people who smoke or vape regularly.
Baltimore, MarylandAges 18–60 - NCT05538910Recruiting
Brain imaging study on substance use and depression
This study uses brain scans to understand how substance use and mental illness, like depression, are linked. It may help develop better treatments by looking at brain activity in people with and without depression.
Baltimore, MarylandAges 18–60
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Common questions
- Are there clinical trials for substance abuse?
- Yes. Clin2 currently lists 39 recruiting substance abuse 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 substance abuse 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 substance abuse 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.