Treatment
Opioid clinical trials
We’re tracking 443 recruiting studies that include Opioid, each written for real people, not researchers, below.
Recruiting studies
- NCT05033028RecruitingPhase 3
Using a smartphone to support opioid addiction recovery
This Phase 3 study tests whether using smartphones can help people with opioid-use disorder stick with treatment and recover more successfully. It focuses on people starting or already in treatment using methadone or buprenorphine, with support delivered through the study app or messages.
Piscataway, New JerseyAges 18–85 - NCT05058287RecruitingPhase 3
Steroid shot during low-back surgery
This trial tests whether using a steroid medicine (a steroid shot) around the time of low-back decompression surgery improves pain and recovery. It is for adults having a limited-area laminectomy, and it compares steroid use versus not using it.
New York, New YorkAges 18–85 - NCT05120076RecruitingPhase 3
Dexamethasone during surgery to reduce hip surgery pain and nausea
This trial tests whether a single steroid medicine called dexamethasone given around the time of surgery can reduce pain and nausea after a periacetabular osteotomy. It may help you feel more comfortable in the first days after surgery, depending on your medical history.
ZurichAges 18–99 - NCT05141591Recruiting
Anxiety before ENT surgery and opioid use after surgery
This trial looks at whether people’s anxiety before ear, nose, and throat (ENT) surgery affects how much pain medicine (opioids) they need after surgery. It may help doctors better plan pain control based on anxiety level and possibly gender-related patterns.
Vienna, State of ViennaAges 18 years+ - NCT05189223Recruiting
Values coaching for veterans starting opioid addiction medicines
This study tests a brief “values-based” coaching/support session to help veterans adjust and stick with early treatment for opioid use disorder. It may help you feel more grounded and supported during the first months after starting medicines like buprenorphine, methadone, or naltrexone.
Bedford, MassachusettsAges 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+ - NCT05271331Recruiting
Numbing injection options for back surgery pain
This trial compares two ways of numbing tissue during a planned back surgery called a laminectomy: an “ESPB block” versus numbing the wound directly. It aims to see which method works better for pain control and comfort after surgery.
Padova, VenetoAges 18 years+ - NCT05459402RecruitingPhase 2/Phase 3
Methadone dose testing for opioid use disorder pain relief
This study compares taking methadone as one dose versus split into two doses to see which approach works better for people who have pain. It’s meant for adults already on a steady methadone program and who can follow study visits and procedures.
Baltimore, MarylandAges 18–100 - NCT05489042Recruiting
Brain scan and rTMS study for suicidal thoughts in opioid users
This study looks at brain connectivity using an MRI scan and then treats some people with rTMS (a non-surgical brain stimulation). It’s designed for adults who use opioids and currently have active suicidal thoughts, to better understand and help those symptoms.
Houston, TexasAges 18–64 - NCT05504265RecruitingPhase 2/Phase 3
Pain control methods during minimally invasive esophagus surgery
This study compares different ways to control pain around the time of minimally invasive esophagus surgery. It may help find a method that controls pain better and improves recovery after surgery.
BeijingAges 18–75 - 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+ - 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+ - NCT05555485Recruiting
Check if ear stimulation can help chronic pain and reduce opioids
This study tests whether a device that stimulates the ear (through the skin) can reduce chronic pain and help people lower their opioid pain medicine. It may help you manage pain with less opioid use if you meet their safety and medication criteria.
Galveston, TexasAges 18–65 - 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+ - 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+ - NCT05620940RecruitingPhase 1
IV drug safety and absorption study in healthy men
This Phase 1 study tests two experimental medicines given by IV to healthy men. It checks safety and how the body absorbs and processes the drugs (their “pharmacokinetic” profile).
Herston, QueenslandAges 18–55 - NCT05642026RecruitingPhase 4
Continuous nerve block for pain from multiple broken ribs
This study tests a continuous nerve block—a numbing medicine delivered near the nerves—to reduce pain from rib fractures. It may help people with two or more broken ribs manage pain more effectively while recovering.
Lexington, KentuckyAges 18 years+ - NCT05658796Recruiting
Program to reduce opioid use after hip or knee replacement
This trial tests a support program called RXWell to help people use less opioid pain medicine after elective hip or knee replacement surgery. It may help by addressing anxiety and depression symptoms that can affect pain and recovery.
Monroeville, PennsylvaniaAges 18–100 - NCT05662371Recruiting
Testing pain-monitor guided pain medicine during robot bowel surgery
This study checks whether using a pain-activity monitor during robot-assisted colorectal surgery can help the surgical team choose the right pain medicine. It may improve comfort and reduce the chance of giving too much or too little pain medicine.
AabenraaAges 18–80 - 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+ - NCT05722002RecruitingPhase 4
Compare pain-med plans after low-risk surgery
This study tests which pain-medication plan works best and has the fewest side effects after certain low-risk surgeries. You may be assigned to receive opioid-based, NSAID-based, or acetaminophen-based pain control depending on your situation.
Ann Arbor, MichiganAges 18 years+ - NCT05761860RecruitingEarly Phase 1
Oxytocin to lower opioid misuse risk and pain in older adults
This early-phase study tests whether oxytocin (a hormone-like medication) can reduce how “appealing” opioids feel and also reduce pain. It’s aimed at older adults who have used opioids before but are not currently dealing with chronic pain most days.
Gainesville, FloridaAges 45–85 - NCT05766891RecruitingPhase 2/Phase 3
Nurse-led hypnosis to reduce opioid pain meds for breast surgery
This trial tests whether nurse-delivered hypnosis during breast cancer surgery can help you need less opioid pain medicine after surgery. It may make recovery more comfortable while aiming to lower opioid use.
Houston, TexasAges 18 years+ - 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+
Common questions
- Are there clinical trials studying Opioid?
- Yes. Clin2 currently lists 443 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.