Treatment
Opioid clinical trials
We’re tracking 430 recruiting studies that include Opioid, each written for real people, not researchers, below.
Recruiting studies
- NCT06021548Recruiting
Opioid addiction markers study
This study looks at physical, psychological, and social factors that may be linked to opioid addiction. It aims to better understand addiction to help improve future treatments.
BronAges 18 years+ - NCT05995535RecruitingPhase 2
Pregabalin and Lofexidine for Opioid Withdrawal
This study tests whether combining two medications, pregabalin and lofexidine, can help people stop using opioids by easing withdrawal symptoms. It's for adults who use opioids heavily and want to switch to a non-addictive blocker medication.
Baltimore, MarylandAges 18 years+ - 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+ - 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+ - NCT05937594Recruiting
Testing microRNA markers to spot newborn opioid withdrawal
This study looks at tiny genetic signals (microRNA) in newborn samples to identify neonatal opioid withdrawal syndrome. It may help doctors recognize withdrawal sooner, so babies can get the right care faster.
Hershey, PennsylvaniaAges 1 day–5 days - 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 - NCT05788016Recruiting
Help planning an opioid taper before knee or hip surgery
This study looks at a plan to safely reduce (taper) opioid pain medicines before total knee or hip replacement surgery. It may help people who are already taking opioids and are preparing for surgery in the next 1 to 2 months.
Birmingham, AlabamaAges 18 years+ - 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 - NCT05585229RecruitingPhase 2
Psilocybin therapy to help you taper opioid pain medicine
This Phase 2 study tests a structured, therapist-led treatment using standardized natural psilocybin to help people reduce or stop long-term opioid use for chronic (non-cancer) pain. It’s mainly for those who have tried tapering before but couldn’t, and who are motivated to try again.
Kelowna, British ColumbiaAges 19–75 - 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+ - NCT05607381Recruiting
Meditation program study for opioid-treated chronic low back pain
This trial studies how meditation may change brain activity and help people with long-lasting low back pain who are already taking prescription opioids. The goal is to understand the “neural” (brain) effects of meditation to improve pain treatment.
La Jolla, CaliforniaAges 18–65 - 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 - NCT05585788Recruiting
Opioid pain device test for cancer surgery patients
This study tests a device that helps you safely use opioid (strong pain) medicine after major cancer surgery. It may help improve post-surgery pain control while tracking how people use the medicine.
New York, New YorkAges 18–99 - NCT05577962RecruitingPhase 4
Recovery quality after thyroid surgery with and without opioids
This study compares two types of anesthesia for thyroid surgery: one with opioids (strong painkillers) and one without. The goal is to see which approach helps patients recover better right after surgery, with fewer side effects.
Beijing, Beijing MunicipalityAges 18–99 - NCT05588323RecruitingPhase 1/Phase 2
Testing naldemedine for constipation caused by opioid pain meds
This study tests whether naldemedine is safe and how the body processes it in children who take opioid medicines and are dealing with constipation or are at risk for it. It may help some children by reducing constipation side effects from opioid pain treatment.
TiranaAges 2–18 - NCT05461092RecruitingEarly Phase 1
Nerve blocks to improve pain control after spinal fusion
This early-stage study tests whether a regional nerve block can improve pain control and recovery for older adults having elective lumbar spinal fusion. If you qualify, you may receive a special pain-control injection during surgery to reduce opioid needs and improve recovery comfort.
Iowa City, IowaAges 65 years+ - NCT05439005RecruitingPhase 3
Opioid-free anesthesia for breast reconstructive flap surgery
This trial compares opioid-free anesthesia with opioid-based anesthesia during breast free-flap reconstruction surgery. It aims to see whether avoiding opioids can improve safety and comfort around the time of surgery.
ParisAges 18 years+ - 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+ - 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+ - NCT05216328RecruitingPhase 4
Preventing opioid-related constipation in advanced cancer
This trial tests whether starting a laxative right away can prevent constipation caused by pain medications called opioids. It's for people with advanced cancer who are beginning opioid pain treatment and aims to improve comfort and quality of life.
Almere Stad, FlevolandAges 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 - NCT04798469RecruitingPhase 2
Testosterone to reduce long-term spine pain in men on opioids
This Phase 2 study tests whether taking testosterone can lessen chronic non-cancer spinal pain in men who have low testosterone while using opioid pain medicines. It may help by improving hormone levels that could be affecting pain and overall wellbeing.
Boston, MassachusettsAges 18 years+ - 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
Common questions
- Are there clinical trials studying Opioid?
- Yes. Clin2 currently lists 430 recruiting studies that include Opioid, drawn from the U.S. registry and rewritten for real people so you can see what each is testing and who it's for.
- How do I know if I qualify for a Opioid trial?
- Each study lists its own eligibility criteria — rules about condition, age, and prior treatments. On every Clin2 trial page we explain these in plain language and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Is Opioid an approved treatment?
- A drug being studied in a trial may be investigational (still being tested) or already approved and being studied for a new use. Each study page explains what phase it's in. Clin2 does not provide medical advice — talk with your doctor about whether Opioid or a specific trial is right for you.
Related treatments
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. A drug appearing here is being studied in a trial and may be investigational. Talk with your doctor about whether a specific treatment or trial is right for you.