Clinical trials
Chronic Opioid Use clinical trials
Below are recruiting chronic opioid use clinical trials, each written for real people, not researchers. We’re tracking 100 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06983678Recruiting
Quitting smoking and pain sensitivity study
This study looks at how quitting smoking affects pain sensitivity in people who smoke, especially those with chronic low back pain. Researchers will use brain scans and daily surveys to understand these changes.
Durham, North CarolinaAges 21–65 - NCT04912531Recruiting
Virtual reality and smell tools to ease surgery pain
This trial tests whether a combination of virtual reality and guided smells can reduce pain and anxiety around major heart and chest surgeries. If you’re scheduled for one of the listed operations, the study may help make recovery feel more comfortable by using sensory-based distraction.
Boston, MassachusettsAges 18 years+ - 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+ - 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 - NCT07004686Recruiting
Guided anesthesia to reduce opioid use in gallbladder surgery
This study tests a new way of guiding anesthesia during gallbladder removal surgery, with the goal of using less opioid pain medicine. It may help you have a smoother recovery with fewer side effects.
Shenzhen, GuangdongAges 18–64 - 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 - NCT06837662Recruiting
Counseling and peer support for opioid use disorder in primary care
This study tests whether adding counseling and peer support helps people with opioid use disorder and other medical problems stay in treatment. It is for patients seen at Central City Concern in Portland who are starting or restarting medication for opioid use disorder, or who are not yet on medication but want help.
Portland, OregonAges 18 years+ - NCT06404983Recruiting
Opioid-free anesthesia for breast cancer surgery
This study tests whether breast cancer surgery can be done safely without using opioid pain medicines during anesthesia. The goal is to see if avoiding opioids leads to fewer side effects and a smoother recovery.
Ioannina, EpirusAges 18–99 - NCT07674836Recruiting
Comparing two nerve blocks for chronic pain after breast surgery
This study tests two types of nerve blocks (SPSIP and ESP blocks) to see which one works better for long-term pain after a single-sided breast surgery like mastectomy. It aims to find a safer, more effective way to manage chronic pain after surgery.
İzmit, KocaeliAges 18–65 - NCT04939623RecruitingPhase 2
Probenecid to ease opioid withdrawal symptoms while tapering
This Phase 2 study tests whether probenecid can lessen discomfort from opioid withdrawal in adults who are gradually lowering their opioid pain medicine. If it works, it may make tapering feel more tolerable and safer.
Calgary, AlbertaAges 18–80 - NCT07315308Recruiting
Nerve block before heart surgery and painkiller use
This study tests whether a numbing injection in the chest before heart surgery can reduce the amount of pain medicine needed during the operation. It may help you manage pain better and recover more comfortably.
Gaziantep, SahinbeyAges 18–65 - NCT07044583Recruiting
Safe Opioid Use Video Education for Breast Reconstruction
This trial tests a video education program to help women safely use opioids after breast reconstruction surgery. It is for patients who have had a mastectomy and are getting a breast rebuilt using their own tissue.
Salt Lake City, UtahAges 18 years+ - 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 - NCT07672808Recruiting
Pain relief after hip replacement without opioids
This study tests a combination of non-opioid pain medicines to reduce the need for opioids after hip replacement surgery. It aims to help patients manage pain with fewer risks of addiction and side effects.
Detroit, MichiganAges 18 years+ - NCT06387290RecruitingPhase 3
Mindfulness and pain management for chronic pain on opioids
This study tests whether adding mindfulness training to standard pain management visits can help people with chronic pain who are taking long-term opioids. It aims to improve pain relief and reduce opioid-related risks.
La Jolla, CaliforniaAges 18 years+ - NCT03858231RecruitingPhase 4
Opioid vs non-opioid pain relief after knee arthroscopy
This study compares opioid pain medicine with non-opioid pain medicine after arthroscopic (keyhole) knee surgery. It aims to see which approach controls pain well while keeping side effects and risks lower.
Fargo, North DakotaAges 18–80 - NCT04894864RecruitingPhase 4
Opioid-free anesthesia for elective abdominal aortic aneurysm surgery
This trial studies an “opioid-free” anesthesia and pain plan during planned open surgery for an abdominal aortic aneurysm. The goal is to see whether this approach reduces surgical stress and pain compared with usual care.
Heraklion, CreteAges 40–85 - NCT06905340Recruiting
Pain-guided opioid use during surgery with regional anesthesia
This trial uses a special monitor (NOL index) to help doctors give just the right amount of pain medicine during surgery. It is for people having trauma or orthopedic surgery who are also getting regional anesthesia.
HamburgAges 18 years+ - NCT07687966RecruitingPhase 2
Study of CBP-0276 for pain after major orthopedic surgery
This trial tests if a new medicine, CBP-0276, can help reduce the amount of opioids needed for pain after major bone surgery. It may help manage pain with fewer side effects.
Mexico CityAges 40–75 - NCT06270147RecruitingPhase 2
Timing of nerve blocks for weight loss surgery pain
This trial tests whether giving a nerve block before or after bariatric surgery works better for pain control. It could help you have less pain and use fewer painkillers after your procedure.
Hamilton, OntarioAges 18 years+ - NCT03596424Recruiting
Testing ketamine and dexmedetomidine during lung surgery
This trial studies whether the anesthesia medicines ketamine and dexmedetomidine can improve care during elective lung (video-assisted) surgery. It may help with comfort during and after the operation, depending on how these medicines affect pain and recovery.
Montreal, QuebecAges 18–80 - NCT07541040Recruiting
Nerve Blocks for Breast Surgery Pain Relief
This trial tests two different nerve-block techniques to reduce pain after breast surgery. The study compares a serratus block with an ESP block—both are injections of numbing medication near nerves—to see which works better for managing pain without heavy opioid use.
İzmit, KocaeliAges 18–65 - NCT07447856RecruitingPhase 1
Herbal plasters for pain relief while using opioids
This trial tests a topical herbal plaster to see if it can help reduce pain in people with cancer who are already taking opioids. The plaster is placed on the most painful area and may allow you to use less opioid medication.
Basking Ridge, New JerseyAges 18 years+ - NCT07334288Recruiting
Numbing injection for pain relief after lower back surgery
This study tests a numbing injection near the spine (retrolaminar block) to reduce pain after lower back surgery with hardware. It could help you use less pain medicine and recover more comfortably.
Santiago, Santiago MetropolitanAges 18–80
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Common questions
- Are there clinical trials for chronic opioid use?
- Yes. Clin2 currently lists 100 recruiting chronic opioid use 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 chronic opioid use 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 chronic opioid use 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.