Clinical trials
Opioid Use Disorder clinical trials
Below are recruiting opioid use disorder clinical trials, each written for real people, not researchers. We’re tracking 295 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05995886Recruiting
Facebook support group for American Indian women in opioid recovery
This study tests if a private Facebook group can help American Indian women in Minnesota stay in recovery from opioid use disorder. You must be on medication for opioid use and have stable recovery for at least a month to take part.
Rochester, MinnesotaAges 18 years+ - NCT05957159RecruitingEarly Phase 1
Testing an alcohol brain imaging study based on opioid receptor balance
This early-phase study looks at how the brain’s opioid receptor balance may be different in people with alcohol use disorder (AUD), using brain scans and blood testing. It may help researchers understand why some people respond differently to alcohol and related treatments.
New Haven, ConnecticutAges 21–70 - NCT05942313Recruiting
Predicting and preventing problems from opioid use during pregnancy
This study looks at ways to predict and reduce harmful outcomes for pregnant people with opioid use disorder (OUD) and their babies. It focuses on people who are already receiving ongoing medication treatment during pregnancy and will follow them around delivery at a specific hospital.
Pittsburgh, PennsylvaniaAges 18 years+ - NCT05834478RecruitingPhase 3
Noninvasive vagus nerve stimulation for opioid use disorder
This trial tests whether noninvasive vagus nerve stimulation can help people with opioid use disorder during supervised withdrawal and treatment afterward. It may be considered if you can safely move to medication or behavioral care after withdrawal.
Atlanta, GeorgiaAges 18–75 - NCT05829655RecruitingEarly Phase 1
Measuring drug cravings in people with opioid use disorder
This study tests whether the medication suvorexant can reduce drug cravings in people with opioid use disorder. You will take either suvorexant or a placebo and have your cravings measured in a safe setting.
Baltimore, MarylandAges 18–65 - NCT05729932RecruitingPhase 1
Cannabis and opioid use disorder study
This Phase 1 trial studies cannabis in people with opioid use disorder. The goal is to better understand how it may affect opioid use disorder, while monitoring safety.
Lexington, KentuckyAges 18–55 - NCT05722561RecruitingPhase 2
E-cigarettes to reduce smoking in opioid use disorder
This Phase 2 study tests whether e-cigarettes can help people who use opioids (and also smoke cigarettes) cut down on combustible cigarette smoking. It looks at whether switching to e-cigarettes for “harm reduction” is safe and helps you smoke fewer cigarettes without requiring you to quit completely.
New York, New YorkAges 21–75 - NCT05683184RecruitingPhase 1
Brain imaging study for opioid use disorder
This study uses brain scans to understand opioid use disorder better. If you have opioid addiction, you might be eligible to help researchers learn more about how the brain is affected.
New Haven, ConnecticutAges 18 years+ - NCT05589753RecruitingPhase 1/Phase 2
Testing treatment for sleep breathing problems in people on opioids
This trial studies a treatment approach for sleep-disordered breathing (breathing problems during sleep) in Veterans who take prescription opioids. It may help doctors learn safer ways to manage sleep breathing issues that can be made worse by opioid use.
Detroit, MichiganAges 18–89 - NCT05511909RecruitingPhase 2
Buspirone study for opioid withdrawal symptoms
This Phase 2 study tests whether buspirone can help reduce symptoms during opioid detox (withdrawal). You may be able to take part if you have opioid withdrawal and are planning medically supervised detox.
Baltimore, MarylandAges 18–75 - NCT05547048RecruitingPhase 4
Phone-based support to help prevent HIV in justice-involved women
This study tests an integrated phone-based health program (e-health) designed for women involved with the justice system who have opioid use disorder. It aims to help people who qualify for HIV prevention (PrEP) stay protected, especially by using simple, ongoing support through phone access.
Birmingham, AlabamaAges 18 years+ - NCT05487911Recruiting
Brain stimulation for depression
This study uses a non-invasive brain stimulation technique called repetitive transcranial magnetic stimulation (rTMS) to treat depression. It may help reduce depressive symptoms for people who have not found relief from other treatments.
Houston, TexasAges 18–64 - NCT05450718RecruitingPhase 4
Low-dose buprenorphine start for opioid use disorder
This trial tests whether starting buprenorphine using a low-dose plan is a safe and workable way to treat opioid use disorder. You may be able to join if you are 18+, have opioid use disorder, and can follow the study medication and visits.
The Bronx, New YorkAges 18 years+ - NCT03923374Recruiting
Study of buprenorphine for opioid use during pregnancy
This study looks at pregnancy and baby outcomes for people who are pregnant and taking buprenorphine for opioid use disorder. It may help doctors understand what to expect long-term for both parent and child when opioid treatment continues during pregnancy.
Pittsburgh, PennsylvaniaAges 18 years+ - NCT05336188Enrolling by invitation
Smartphone help to prevent relapse in opioid use disorder
This study looks at whether a smartphone-based program can help people avoid relapse from opioid use disorder. Some participants may also do brain scans to better understand the brain changes behind relapse prevention.
Little Rock, ArkansasAges 18 years+ - NCT05219175RecruitingPhase 2
MDMA therapy for PTSD and opioid addiction after childbirth
This Phase 2 study tests whether MDMA-assisted therapy can reduce symptoms of PTSD and help with opioid use disorder in people after childbirth. You must be on a stable, low enough dose of methadone or buprenorphine and be able to follow study rules, including therapy sessions and safety monitoring.
Albuquerque, New MexicoAges 18 years+ - NCT05138614Recruiting
Help for people with opioid use disorder and mental health needs
This trial studies a program meant to improve treatment access and support recovery for people with opioid use disorder who also have mental health symptoms. It may help if you are new to the program or recently relapsed, or if mental health symptoms have worsened—even without a relapse.
Holyoke, MassachusettsAges 18 years+ - NCT05011266RecruitingPhase 2/Phase 3
Buprenorphine plus naltrexone shot to prevent opioid relapse
This trial tests whether a combination of buprenorphine (through your care plan) and a monthly extended-release naltrexone (XR-NTX) shot can help prevent opioid relapse. It may help people who are ready to move toward a naltrexone-based relapse-prevention treatment after detox.
Rockville, MarylandAges 18–65 - NCT04458545RecruitingPhase 1/Phase 2
Opioid vaccine study for adults with heroin or fentanyl use
This trial tests a vaccine made from parts designed to help the body respond to opioids (heroin or fentanyl). It is mainly for adults with moderate-to-severe opioid use disorder who are using opioids that match the study dosing needs and who are willing to do frequent visits over about a year.
Eatontown, New JerseyAges 18–59 - NCT04375033RecruitingPhase 4
Comparing Buprenorphine pill vs injection for opioid use disorder
This study compares two forms of a medication called buprenorphine (one is a pill you take under the tongue, the other is an injection) to see which works better for treating opioid use disorder. If you are eligible, you will receive one of these forms for a year and regular check-ups.
Tuscaloosa, AlabamaAges 18 years+ - NCT04354077Recruiting
Deep brain stimulation for opioid addiction
This study tests whether deep brain stimulation (DBS), a surgical treatment that uses electrical pulses to target specific brain areas, can help reduce cravings and relapse in people with opioid use disorder who haven't found relief from other treatments.
Pittsburgh, PennsylvaniaAges 22–65 - NCT04356274Enrolling by invitation
Improving access to addiction and mental health care at VA clinics
This study tests an approach to help VA clinics reach more Veterans with proven treatments for addiction and mental health conditions. It focuses on clinic-level processes (not individual medications) to increase how widely evidence-based care is delivered.
Palo Alto, CaliforniaAges 18 years+ - NCT04197921Recruiting
Brain-focused ultrasound for opioid addiction-related substance use
This trial studies Exablate, a non-surgical brain treatment that aims to change activity in a specific brain area involved in cravings and substance use. It is meant for people in structured opioid or substance use treatment who are currently abstaining from opioids and other illicit drugs.
Tampa, FloridaAges 18–60 - 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+
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Common questions
- Are there clinical trials for opioid use disorder?
- Yes. Clin2 currently lists 295 recruiting opioid use disorder 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 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 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.