Pain medicine
Pain clinical trials
Chronic and acute pain, and the conditions that cause it. We’re tracking 3,580 recruiting studies in this area right now.
By phase
- Not applicable2,955
- Phase 4240
- Phase 2129
- Phase 3103
- Phase 194
- Phase 2/Phase 337
- Phase 1/Phase 222
Top conditions
Leading sponsors
- Riphah International University84
- Cairo University61
- Beijing Tiantan Hospital34
- Tanta University34
- Ain Shams University28
- Foundation University Islamabad28
- Mayo Clinic25
- VA Office of Research and Development23
- Hacettepe University22
- Stanford University21
Where studies are running
- California151
- New York79
- Florida65
- Massachusetts65
- Texas51
- Illinois40
- North Carolina40
- Maryland39
- Ohio39
- Minnesota37
Recruiting studies3,580 total
- NCT04676802RecruitingPhase 2
Pain relief after thumb joint surgery: ibuprofen and acetaminophen versus oxycodone
This study compares two ways to manage pain after thumb joint removal surgery: one using over-the-counter pain relievers (ibuprofen and acetaminophen) and the other using a prescription opioid (oxycodone). The goal is to see if the non-opioid option works just as well with fewer side effects.
Redwood City, CaliforniaAges 45 years+ - NCT04605445Recruiting
One vs two dentist visits for infected root canals
This study compares whether treating an infected, dead tooth in one visit works as well as using two visits. It may help you and your dentist choose the simplest schedule while still clearing infection and supporting healing.
Vaxjo, Kronoberg CountyAges 18 years+ - NCT04636879Recruiting
Testing dry needling for neck pain expectations
This study looks at how people’s expectations and experiences relate to treatment with dry needling for neck pain. It may help researchers understand who benefits most from this therapy for upper trapezius muscle pain.
Alcalá de Henares, MadridAges 18–65 - NCT04653064Recruiting
Brain imaging study of how people feel heat and pain
This study uses MRI scans to understand how your brain responds to different feelings, including mild heat pain. It may help researchers learn more about pain and brain processing by comparing your responses during the tests.
Hanover, New HampshireAges 18 years+ - NCT04659317RecruitingPhase 3
Opioid-free pain plan for joint and arm surgeries
This Phase 3 study tests an opioid-free approach to pain control for certain orthopedic (bone/joint) surgeries. The goal is to help people manage surgical pain without using opioid pain medicines.
Atlanta, GeorgiaAges 18 years+ - NCT04674449Recruiting
Tests a targeted plan for people with chest pain from heart artery disease
This study aims to match people with angina (chest pain from heart artery problems) to the most helpful treatment plan based on their test results. It’s done around the time doctors are planning an invasive heart scan to look at the coronary arteries.
CorkAges 18 years+ - NCT04577690RecruitingPhase 4
PECS pain study for children getting a chest device implanted
This trial tests a pain-control method (PECS) during surgery for children who are having a small chest device implanted. It may help reduce discomfort during and after the operation.
Toronto, OntarioAges 3–18 - NCT04575688Enrolling by invitationPhase 4
Nerve-block injection options for ankle or heel surgery
This trial compares two methods of numbing pain—an injection near the joint versus a nerve block—during ankle or hindfoot surgery. It aims to see which approach helps with comfort and recovery after surgery.
Germantown, TennesseeAges 18–80 - NCT04526093Recruiting
Study of medical cannabis using patient symptom reports
This study looks at how medical cannabis affects symptoms like pain, epilepsy, sleep, and anxiety or depression, based on what patients report over time. It may help researchers understand what works in real life when people use verified medical cannabis products.
Toronto, OntarioAges 19 years+ - NCT04556890Recruiting
Brain stimulation for treatment-resistant depression and chronic pain
This study tests a non-invasive brain stimulation treatment, called transcranial magnetic stimulation (TMS), to see if it can help people who have both major depression that hasn't improved with medication and chronic pain from fibromyalgia or chronic fatigue syndrome. It aims to reduce both depression and pain symptoms.
Los Angeles, CaliforniaAges 18–75 - NCT04576078RecruitingPhase 2
Nefopam for less pain after knee replacement surgery
This Phase 2 study tests whether oral nefopam can reduce pain after total knee replacement done with spinal anesthesia. It looks at whether this medicine works better than the usual post-surgery pain plan and how safely it can be used.
Lyon, LyonAges 18–75 - NCT04218409RecruitingEarly Phase 1
Tests a spray to reduce opioid use and pain
This early trial studies whether Syntocinon can lower pain and help reduce how much opioids people use. It checks safety and the best dose by giving participants the study drug under close medical monitoring.
Gainesville, FloridaAges 21–45 - NCT04441034RecruitingPhase 4
Compare two medicines for long-term pain in real life
This trial compares two types of medicines—anti-convulsants and anti-depressants—for people with persistent pain lasting more than 3 months. It aims to find out which option works better in everyday care and for which patients.
Redwood City, CaliforniaAges 18 years+ - NCT04449146Recruiting
Ultrasound guide for shoulder position during standing test
This study uses ultrasound (a non-radiation imaging tool) to help check the best way to hold your shoulder blade while standing. It’s aimed at people having a reverse shoulder replacement on their own shoulder joint, to see if this positioning method can improve care or planning.
BrestAges 18–99 - NCT04379115Recruiting
Brain stimulation study for people with opioid addiction
This study tests a non-invasive brain stimulation approach to reduce opioid cravings in people who are actively using non-prescribed opioids while on stable methadone. It may help people feel less craving and improve recovery support.
Hinsdale, IllinoisAges 18–85 - NCT04381208Recruiting
Using health and movement data to diagnose sacroiliac pain
This study looks at medical records and physical/neurological exam findings to help diagnose sacroiliac joint dysfunction, a common source of chronic low back or buttock pain. It may help your care team better sort out what’s causing your pain and choose the right next steps.
Valencia, ValenciaAges 18 years+ - NCT04454203RecruitingPhase 4
Local anesthetic catheter to reduce tourniquet-related blood pressure spikes
This Phase 4 trial tests whether a local anesthetic catheter placed near a nerve and artery can prevent high blood pressure caused by a tourniquet during total ankle replacement surgery. If it works, it may make recovery safer and more comfortable for some patients.
Durham, North CarolinaAges 18–75 - NCT04458584Recruiting
Thumb surgery trial comparing treatments for basal joint arthritis
This study looks at how well different thumb (basal joint) surgery approaches restore strength and function. You would be having planned (non-replacement) thumb surgery, and your chosen surgeon would care for you while researchers compare outcomes.
Lebanon, New HampshireAges 21 years+ - NCT03852381Recruiting
Spinal cord stimulation for nerve pain after back surgery
This study looks at how spinal cord stimulation (a device that sends mild signals to the spinal cord) affects nerve pain after lumbar surgery. It also aims to help predict who is most likely to improve and why, comparing patients with and without certain sensory symptoms.
Toronto, OntarioAges 18–80 - NCT04347200Recruiting
Long-term blood-thinner therapy registry for heart disease
This study follows people with known coronary artery disease to understand how long-term “blood thinner” treatments are used and how they affect health over time. You may be asked to share medical information and come in for follow-up to help researchers compare outcomes.
MoscowAges 18 years+ - NCT04270617Recruiting
Yoga practice for long-term back pain
This study looks at whether regular yoga helps people with chronic (long-lasting) back pain. If you can safely take part in yoga sessions and your pain has lasted at least 3 months, you may be able to enroll.
New York, New YorkAges 18 years+ - NCT04371445RecruitingPhase 4
Dextenza drops after eye surgery to reduce post-op pain
This trial studies whether Dextenza (a steroid pain-relief eye insert) can improve comfort after a specific type of retina surgery (pars plana vitrectomy). It looks at people getting surgery for conditions like macular hole, epiretinal membrane, or vitreomacular traction.
Cleveland, OhioAges 18 years+ - NCT04326192Recruiting
Spinal cord stimulation to reduce stubborn back and leg pain
This trial tests whether spinal cord stimulation (a treatment where a device sends mild signals to the spinal cord) can improve persistent nerve-type back and leg pain. It is mainly for adults who are already planning to try spinal cord stimulation but have not tried it before.
Portland, OregonAges 21–70 - NCT04299893RecruitingPhase 2/Phase 3
Ozone treatment for chemotherapy nerve pain
This trial tests whether ozone therapy can reduce painful nerve damage caused by chemotherapy. It is for adults with ongoing moderate-to-severe pain in the hands or feet after chemotherapy.
Las Palmas de Gran Canaria, Las PalmasAges 18–100
Common questions
- How many pain clinical trials are recruiting?
- Clin2 is tracking 3,580 recruiting pain medicine studies from the U.S. registry right now, out of 6,510 we cover in this area in total.
- What does “Pain” cover here?
- Chronic and acute pain, and the conditions that cause it. We group each study into pain based on the conditions it studies, so you can scan the whole therapeutic area at once and drill into a specific condition.
- How do I find a pain trial near me?
- Use the search to filter pain studies by location and eligibility. Every Clin2 trial page explains the criteria in plain English and offers a short, optional pre-screen for a fit read — the study team makes the final decision.
Other specialties
- Cancer
- Brain & nervous system
- Heart & circulation
- Hormones & metabolism
- Mental health
- Digestive system
- Lungs & breathing
- Immune system & allergy
- Women’s health & pregnancy
- Skin
- Blood & lymphatic
- Kidney & urinary
- Infections
- Genetic & congenital
- Bones, joints & muscles
- Injuries & trauma
- Mouth & dental
- Eyes & vision
- Ear, nose & throat
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov; specialty groupings are derived from each study’s conditions. Talk with your doctor about whether a specific trial is right for you.