Clinical trials
Knee clinical trials
Below are recruiting knee clinical trials, each written for real people, not researchers. We’re tracking 836 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05559463Recruiting
Anti-inflammatory diet for knee arthritis pain relief
This trial studies whether an anti-inflammatory eating plan (the “ITIS diet”) can improve symptoms in people with knee osteoarthritis. It is meant to see if changing what you eat can help reduce pain and improve function.
La Jolla, CaliforniaAges 18 years+ - NCT05674604Recruiting
Cryoneurolysis to reduce knee and shoulder pain in hospital
This trial tests whether a procedure called cryoneurolysis can reduce pain in people recovering from certain recent brain or nerve injuries (like stroke or traumatic brain injury). It may be helpful if you have either hemiplegic shoulder pain or knee pain from osteoarthritis while you’re in inpatient rehab.
Victoria, British ColumbiaAges 18–80 - NCT05729061Recruiting
Testing movement with mobility assistive devices
This study measures how people move while using assistive devices during guided movement tasks, sometimes on a treadmill. It may help improve these tools and how safely they support different types of movement needs.
Edmonds, WashingtonAges 18–90 - NCT05800457Recruiting
Test synovectomy to reduce pain after knee replacement
This study looks at whether a procedure called synovectomy (removing inflamed joint lining) can reduce pain after a first knee replacement on one side. It focuses on people with clear signs of inflammation on ultrasound and checks follow-up outcomes after surgery.
London, OntarioAges 41–80 - NCT05805774Recruiting
Compare fixing versus replacing a fractured thigh bone
This study looks at the best surgical option for an acute (new) fracture of the lower thigh bone near a stable knee replacement. It compares surgery that “fixes” the bone versus surgery that “replaces” part of the bone to help you walk again safely.
Toronto, OntarioAges 65 years+ - NCT05816798RecruitingPhase 2/Phase 3
Laser treatment to reduce chronic knee pain before weight-surgery
This trial tests whether photobiomodulation (a type of laser/light therapy) can reduce chronic pain in both knees for people preparing for bariatric (weight-loss) surgery. If you have knee pain that limits daily life, the treatment may help you feel better while you’re in the pre-surgery rehabilitation period.
Goiânia, GoiásAges 18–70 - NCT05823727Recruiting
Collagen supplement study before and after knee replacement
This study tests whether taking collagen peptides can improve how knee tissues heal and remodel after total knee arthroplasty (knee replacement). It also looks at functional recovery and wound healing, especially during the physical therapy period in Little Rock.
Little Rock, ArkansasAges 50–75 - NCT05839535RecruitingPhase 2
Baduanjin plus brain stimulation for knee osteoarthritis pain
This Phase 2 study tests whether combining Baduanjin (a guided mind-body movement) with neuromodulation can improve knee osteoarthritis symptoms and function. It compares education-based stretching/control and uses MRI scanning as part of the research.
Charlestown, MassachusettsAges 45–75 - NCT05842538Recruiting
Robotic surgery for total knee replacement in arthritis
This trial studies whether robotic-assisted surgery can improve or standardize outcomes for people getting a total knee replacement for severe arthritis. It may help by using a robot to assist during the knee operation, but you must meet specific knee and health criteria.
GothenburgAges 18–80 - NCT05887440Recruiting
Isokinetic strength training for knee control after stroke
This trial studies whether a special strength-training program that uses an “isokinetic” machine can improve walking and knee control in people after stroke. It is for people who have noticeable knee movement during walking and can safely take part in rehab.
RennesAges 18–75 - NCT05892133Recruiting
Exercise program before knee replacement to improve recovery
This trial studies whether doing a structured exercise or “prehab” program before total knee replacement can improve knee function and patient satisfaction after surgery. It may help you recover better and feel more confident in your outcome.
Molde, Møre og RomsdalAges 50–80 - NCT05906433RecruitingPhase 1
Best type of numbing medicine for knee steroid shots
This early (Phase 1) study looks at which anesthetic (numbing medicine) works best and is safest during steroid injections for knee osteoarthritis. It may help improve comfort and effectiveness of these common pain-relief shots.
Tampa, FloridaAges 18 years+ - NCT05920382Recruiting
Radiofrequency treatment for long-term knee pain after knee surgery
This trial studies whether a radiofrequency procedure can reduce chronic knee pain after knee replacement surgery. It may help people who still have bothersome pain between 6 months and 5 years after their operation, as long as their pain pattern and medications are stable.
Barcelona, CataloniaAges 18 years+ - NCT05933434RecruitingPhase 1/Phase 2
Stem cell injection trial for chronic knee osteoarthritis
This early-phase study tests an injection of donor stem cells placed into the knee joint to help reduce symptoms of knee osteoarthritis. You may be eligible if you have long-lasting knee pain from mild-to-moderate arthritis and meet safety and imaging requirements.
Aarhus NAges 40–75 - NCT05936814Recruiting
Study measures knee alignment in severe varus osteoarthritis
This study focuses on people age 65+ with severe “varus” knee alignment osteoarthritis (wear-and-tear arthritis that affects how the knee lines up). It aims to use your knee measurements and data to better understand the condition and guide care.
AnkaraAges 65 years+ - NCT05962463Recruiting
Compare two pain injections for advanced knee arthritis
This trial compares pulsed radiofrequency therapy versus a targeted nerve pain block to help reduce knee pain from advanced osteoarthritis. You might join if you have knee osteoarthritis in the more severe range (Kellgren-Lawrence grade 3–4) and meet safety requirements.
LjubljanaAges 45–100 - NCT05981105Recruiting
Recovery and Chronic Pain After Knee Replacement
This study tests a special recovery program after knee replacement surgery to see if it helps reduce long-term pain. You may be eligible if you are having a first-time knee replacement for osteoarthritis, are between 18 and 65, and live near the hospital.
New York, New YorkAges 18–75 - NCT06024850Recruiting
Predicting good results after knee ligament repair
This study looks at people who had surgery to repair several torn knee ligaments. It aims to find out what factors lead to better results after the surgery.
Saint-EtienneAges 18 years+ - NCT06040827Recruiting
Study of a knee implant extension for knee replacement
This trial is for adults having their first knee replacement surgery. It tests a special part (tibial extension) of a common knee implant system. Researchers will follow participants over time to see how well it works.
Fayetteville, ArkansasAges 18 years+ - NCT06040957Recruiting
Bone marrow vs fat cells for knee osteoarthritis treatment
This trial compares using cells from your bone marrow or belly fat to treat knee osteoarthritis, aiming to reduce pain and improve function. It's for people who haven't gotten better with standard treatments like physical therapy or medications.
BolognaAges 40–75 - NCT06054633Recruiting
L-arginine for knee osteoarthritis pain
This study tests whether L-arginine, a natural amino acid, can help with knee pain from osteoarthritis. You might be eligible if you are 40–80 years old, have moderate osteoarthritis on X-ray, and have had knee pain for at least 3 months.
Changsha, HunanAges 40–80 - NCT06084949Recruiting
Exercise for knee osteoarthritis relief
This trial tests if a structured exercise program can reduce pain and improve daily activities for people with knee osteoarthritis. If you have knee pain and trouble with daily tasks, this study may help you find a low-cost, non-drug way to feel better.
Kowloon City, KowloonAges 55 years+ - NCT06090097Recruiting
Game therapy for knee osteoarthritis
This trial tests a game-based therapy that uses biofeedback to help strengthen your knee. It may help you move better and feel less pain.
Chapel Hill, North CarolinaAges 30–75 - NCT06096259RecruitingPhase 2
Preventing knee arthritis after ACL injury
This trial tests whether metformin, a common diabetes medicine, can prevent arthritis after an ACL injury. If you are planning to have ACL surgery soon, you may be able to join.
Atlanta, GeorgiaAges 18–45
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Common questions
- Are there clinical trials for knee?
- Yes. Clin2 currently lists 836 recruiting knee 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 knee 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 knee 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.