Clinical trials
Opioid Use Disorder, Severe clinical trials
Below are recruiting opioid use disorder, severe clinical trials, each written for real people, not researchers. We’re tracking 150 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06576323Recruiting
Support for mothers with opioid use disorder and babies in the NICU
This study aims to improve care for mothers with opioid use disorder and their babies with neonatal abstinence syndrome. Researchers will interview healthcare providers and mothers to develop better support programs.
Philadelphia, PennsylvaniaAges 18 years+ - NCT06160284RecruitingPhase 1
Psilocybin for brain healing in opioid recovery
This study tests whether psilocybin, a psychedelic substance, can help change brain connections in people recovering from opioid use disorder. It involves brain scans and careful medical monitoring to explore new treatment options.
New Haven, ConnecticutAges 25–55 - NCT06712602RecruitingPhase 1
Testing PT150 for Alcohol Use Disorder
This study tests whether a drug called PT150 can help people with moderate to severe alcohol use disorder who are not currently seeking treatment. You will be asked to stay abstinent from alcohol for short periods and attend sessions to see how PT150 affects your body and alcohol cravings.
Lexington, KentuckyAges 21–55 - NCT06718491Recruiting
A smartphone program to reduce heavy drinking for people on opioid treatment
This study tests a brief smartphone-based program to help people reduce heavy drinking while they are receiving medication for opioid use disorder (MOUD). It aims to improve both alcohol and mental health outcomes.
Columbus, OhioAges 18 years+ - NCT06726200RecruitingEarly Phase 1
Comparing buprenorphine formulations for fentanyl addiction
This study tests two different forms of buprenorphine (a medication for opioid addiction) to see which works better for people who use fentanyl or other strong synthetic opioids. If you are seeking treatment for opioid use, this trial may help you find the most effective option.
New York, New YorkAges 18–65 - NCT06800703Recruiting
Opioid use, pain, and the brain
This study uses brain scans (MRI) to understand how pain affects people with opioid use disorder or regular opioid use, compared to healthy volunteers. It aims to find better ways to treat both pain and opioid addiction.
New Haven, ConnecticutAges 21–60 - NCT06880718RecruitingPhase 4
Injectable buprenorphine for opioid use disorder in prison
This study tests whether a once-monthly injection of buprenorphine (called extended-release buprenorphine, or XR-B) works well for people in prison who are already in a medication program for opioid use disorder. It looks at preferences and outcomes in the last months before release.
Cranston, Rhode IslandAges 18 years+ - NCT06940674RecruitingPhase 3
CBD plus opioid treatment for recovery
This study tests whether adding cannabidiol (CBD) to your usual methadone or buprenorphine treatment helps you recover from opioid use disorder. If you're already in stable treatment with those medications, the trial aims to see if CBD can improve your outcomes.
New York, New YorkAges 18–65 - NCT06943859RecruitingPhase 2
Ketamine for opioid use disorder during methadone treatment
This study tests if a medicine called ketamine, given during methadone treatment, can help people reduce their use of opioids. It is for people who recently started methadone and have been using opioids heavily.
Baltimore, MarylandAges 18–65 - NCT06981195RecruitingPhase 2
Testing lemborexant for insomnia in people on buprenorphine
This study tests if the sleep medication lemborexant can help people with opioid use disorder who also have chronic insomnia. Participants must already be taking buprenorphine (Suboxone) for at least 4 weeks. The goal is to see if better sleep improves mood and reduces opioid use.
Richmond, VirginiaAges 18 years+ - NCT07079826Recruiting
Sparrow Link device for opioid withdrawal in hospital
This trial tests a device placed on the ear to help manage opioid withdrawal symptoms in hospitalized adults. It's for people still having withdrawal despite standard medications or those who've chosen not to take methadone or buprenorphine.
Pittsburgh, PennsylvaniaAges 18 years+ - NCT07214467Recruiting
Adaptive brain stimulation for opioid use disorder
This study tests a new type of brain stimulation that adapts to your brain activity, aiming to reduce cravings and help you control opioid use. It is for people with long-standing opioid use disorder who have not gotten lasting relief from at least 3 treatment attempts, including medication.
San Francisco, CaliforniaAges 22–75 - NCT07226570Recruiting
Ibogaine brain mapping study for opioid use disorder
This study uses MRI and EEG scans to map how ibogaine affects the brain in people with opioid use disorder. You must already be scheduled to receive ibogaine treatment in Tijuana, Mexico, on your own, as the study does not cover treatment costs.
Irvine, CaliforniaAges 21–70 - NCT07278518Recruiting
Emergency department decision aid for buprenorphine
This trial is testing a tool to help people in the emergency department decide whether to start buprenorphine (a medication for opioid use disorder). It's for patients who are not already on medication for their condition.
Charleston, South CarolinaAges 18 years+ - 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 - NCT07632053Recruiting
Support Program for Mothers With Opioid Addiction
This study offers support and treatment for mothers struggling with opioid use disorder who have a child age 5 or younger. Researchers will provide intervention and assess brain imaging to understand how best to help mothers and their families.
Ann Arbor, MichiganAges 18–50 - NCT07490717Enrolling by invitation
Treating PTSD and opioid use in jails
This study tests new ways to screen and treat people in jail who have both post-traumatic stress disorder (PTSD) and opioid use disorder. It aims to help participants with therapy while incarcerated and after release.
Little Rock, ArkansasAges 18 years+ - NCT03396276Enrolling by invitationPhase 4
Emergency system to help people stop opioid misuse
This Phase 4 study tests an “emergency opioid engagement system” that aims to help people who are opioid-dependent start stopping opioid use. If you’re willing to stop and can safely participate, the program may offer structured support when you’re in the emergency setting.
Houston, TexasAges 18 years+ - NCT07490600Recruiting
Testing brain stimulation and rewards for quitting cocaine
This trial combines deep transcranial magnetic stimulation (TMS) with a reward program (contingency management) to help people stop using cocaine. It may help if you are struggling with moderate to severe cocaine use and want a non-drug treatment.
Houston, TexasAges 18–65 - NCT06320366Recruiting
Faster TMS for methamphetamine use disorder
This study tests a faster brain stimulation technique (TMS) to help people reduce methamphetamine use. It may be a good option if you have moderate to severe methamphetamine use disorder and are looking for new treatment approaches.
Aurora, ColoradoAges 21–65 - NCT07226596Recruiting
Methamphetamine use: can you reduce without quitting?
This study tests whether people who use methamphetamine can reduce use even if they are not completely abstinent. It offers a 12-week program and checks how you're doing for another 12 weeks after.
Lexington, KentuckyAges 18 years+ - NCT05827159RecruitingPhase 3
Medications started in the ER for alcohol use disorder
This study tests whether starting certain medications in the emergency room can help people with moderate to severe alcohol use disorder reduce heavy drinking and withdrawal problems after they leave the ER. It compares outcomes for participants who receive the study medications soon after an ER visit.
New Haven, ConnecticutAges 18–80 - NCT07210268Recruiting
Brain stimulation for nicotine addiction treatment
This trial tests a new method called temporal interference to stimulate the brain and help people who vape nicotine reduce their addiction. It aims to see if this non-invasive approach can make it easier to quit.
Bloomington, IndianaAges 21–50 - NCT05781009RecruitingPhase 2
Pregnenolone treatment for alcohol use disorder
This Phase 2 study tests pregnenolone to help reduce or improve alcohol use disorder symptoms. It looks for adults who drink regularly and meet diagnostic criteria for moderate to severe alcohol use disorder, while excluding people with certain other substance use, medicines, or serious mental/medical conditions.
New Haven, ConnecticutAges 18–70
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Common questions
- Are there clinical trials for opioid use disorder, severe?
- Yes. Clin2 currently lists 150 recruiting opioid 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 opioid 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 opioid 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.