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
- NCT05534815Recruiting
Long-term support for opioid use disorder treatment
This study looks at long-term treatment support for people receiving medicine-assisted treatment for opioid use disorder. It may help by testing an approach to improve long-term outcomes while you receive buprenorphine or methadone.
Marquette, MichiganAges 18 years+ - NCT07085377Recruiting
Nurse-led methadone program for opioid use disorder
This trial tests a system where nurses can adjust your methadone dose without a doctor's order. It's for people starting methadone treatment for opioid use disorder and willing to be followed at a CSAPA center for 3 months.
BayonneAges 18 years+ - NCT07024498Recruiting
Buprenorphine follow-up after emergency care
This study helps coordinate ongoing care for people who start buprenorphine, a medication for opioid use disorder, while in the emergency department. It aims to connect you with continued treatment to support your recovery.
El Centro, CaliforniaAges 14 years+ - NCT06965153Recruiting
Peer coaching to help people with opioid use disorder quit smoking
This trial tests whether having a peer recovery coach can help people with opioid use disorder quit or reduce smoking. If you're already on medication for opioid use disorder and want to work on your smoking, this program might offer extra support.
Boston, MassachusettsAges 18 years+ - NCT06961058Recruiting
Telehealth vs. in-person follow-up for opioid addiction treatment
This study compares follow-up care after an emergency department visit for opioid addiction: either through telehealth (video visits) or in-person appointments. The goal is to see which method helps people stay in treatment after they leave the ED.
El Centro, CaliforniaAges 18 years+ - NCT06877858RecruitingPhase 1
MethaLoad dose-finding study for opioid use disorder
This study tests a new way to start methadone treatment (called 'MethaLoad') for people with opioid use disorder who have used fentanyl. If you qualify, you will receive methadone to help manage withdrawal and reduce cravings, and the doctors will closely monitor your safety and response.
Philadelphia, PennsylvaniaAges 18 years+ - NCT06843213Recruiting
Peer-led health resilience program for opioid use disorder
This trial tests a peer-led program to help people with opioid use disorder build resilience and coping skills while they are in the hospital. The program is designed to support recovery and improve health outcomes.
Pittsburgh, PennsylvaniaAges 18 years+ - NCT06835582Enrolling by invitation
Checking Methadone and Its Breakdown Levels
This study is checking the levels of methadone and its breakdown products in your blood. It helps make sure the medication is working safely for conditions like opioid use disorder or chronic pain.
Lemon Grove, CaliforniaAges 18–70 - NCT06810310RecruitingPhase 2
Psilocybin for motivation in opioid use disorder
This study tests whether a single dose of psilocybin (the active ingredient in magic mushrooms) can help people with opioid use disorder stay motivated in recovery. It uses brain scans to see how psilocybin affects brain areas linked to motivation.
Philadelphia, PennsylvaniaAges 18–60 - NCT06799117Recruiting
Decision Support for Opioid Addiction Treatment
This study tests a new way to help people in the emergency department who have moderate to severe opioid use disorder. It looks at using a decision-support tool to guide treatment choices.
Guilford, ConnecticutAges 18 years+ - NCT06786325RecruitingPhase 2
Psilocybin treatment study for opioid use disorder
This trial tests whether psilocybin can help people recovering from opioid use disorder while living at a residential treatment center. If you are already taking buprenorphine/naloxone (Suboxone), methadone, or have received Sublocade, this study may be an option for you.
Philadelphia, PennsylvaniaAges 18–60 - NCT06556602Recruiting
Study to improve access to methadone treatment
This trial tests a new way to help people get methadone treatment by working with staff at opioid treatment programs. It might lead to better access for patients.
Tucson, ArizonaAges 18 years+ - NCT06544291RecruitingPhase 2
THC and CBD for pain and opioid use disorder
This study tests whether a combination of THC and CBD can help people who have both opioid use disorder and chronic low back pain. You would need to be on a stable dose of methadone and have used cannabis at least once in your life.
New Haven, ConnecticutAges 18–65 - NCT06494904RecruitingPhase 3
Standard vs. High Dose Buprenorphine in the ER
This study compares a higher dose of buprenorphine (a medicine that helps stop opioid cravings and withdrawal) to the usual dose, given in the emergency department. It aims to see if the higher dose works better to start treatment for opioid use disorder.
Oakland, CaliforniaAges 18–65 - NCT06416020Recruiting
Support for starting addiction treatment in community settings
This study looks at ways to help people who have just started taking buprenorphine for opioid use disorder stick with their treatment. It tests extra support outside of a clinic to help you stay on track and feel better.
Washington D.C., District of ColumbiaAges 16 years+ - NCT06338280RecruitingPhase 2
Observing methadone treatment remotely
This study tests if using a smartphone app to watch you take your methadone works as well as going to a clinic every day. It might make treatment easier for you.
Chicago, IllinoisAges 18–64 - NCT06306443RecruitingPhase 3
Buprenorphine treatment for people leaving jail
This trial offers buprenorphine (a medication for opioid use disorder) to people in jail who are soon to be released. It helps you start treatment while incarcerated and continue it after you return to the community, aiming to reduce overdose and improve recovery.
Baltimore, MarylandAges 18 years+ - NCT06136247Recruiting
Brain & thinking tests in opioid use disorder
This study tests whether brain scans and thinking tests can help understand opioid use disorder. It is for people on stable buprenorphine or methadone treatment.
Philadelphia, PennsylvaniaAges 18–60 - NCT06051890RecruitingPhase 4
Assessing switching to long-acting buprenorphine injection in jail
This study tests whether switching from daily buprenorphine/naloxone (Suboxone) to a long-acting injectable buprenorphine (XRB) is safe and effective for men who are unsentenced and in jail for at least 4 days. It aims to see if the injection can help continue treatment without needing daily medication.
Boston, MassachusettsAges Any age - NCT05769218Recruiting
Rapid HIV prevention and opioid treatment access for people who inject
This study helps people who inject drugs start HIV prevention (PrEP) and medication for opioid use disorder (MOUD) faster. It may reduce HIV risk and improve access to treatment, while the study checks whether the “rapid access” approach works.
Boston, MassachusettsAges 18 years+ - NCT05675735Recruiting
Methadone take-home program to help people stay in treatment
This trial studies whether changing how methadone is allowed to be taken home can improve how long people stay in opioid use disorder treatment. It focuses on clinics and on adults who have already been receiving take-home methadone.
Storrs, ConnecticutAges 18 years+ - NCT05669534RecruitingPhase 4
HIV prevention support for people starting PrEP
This study tests how to better support HIV prevention for people who inject drugs and are newly starting PrEP (medicine to prevent HIV). It focuses on people taking medication for opioid use disorder and who have mild thinking and memory problems, to help them stay safe and adhere to prevention.
New Haven, ConnecticutAges 18 years+ - NCT05589181RecruitingPhase 3
High-dose buprenorphine start in the emergency department for fentanyl use
This Phase 3 study tests whether starting a high dose of buprenorphine in the emergency department helps people with opioid use disorder come through withdrawal more safely and effectively. It focuses on people whose urine test shows fentanyl and who are already in withdrawal when they arrive.
Newark, New JerseyAges 18 years+ - NCT05579470Recruiting
Study opioid treatment access with staff, patients, and local leaders
This study looks at how to expand opioid addiction treatment in Central Asia by gathering survey and discussion input from people with opioid dependence, people delivering treatment, and local health leadership. It may help improve how treatment programs are set up and delivered in the future.
New Haven, ConnecticutAges 18 years+
Hear when a new Opioid Use Disorder trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.
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.