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Clinical Research Directory

Browse clinical research sites, groups, and studies.

186 clinical studies listed.

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Osteoarthritis, Knee

Tundra lists 186 Osteoarthritis, Knee clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.

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TERMINATED

NCT04427709

Generate and Test the Reliability of a PD Model of OXT on Pupillary Hippus as a Measure of CNS Activity

The purpose of this research is to evaluate the effects of oxytocin (naturally occurring hormone) given by an intramuscular (IM; into the muscle) injection, has on your parasympathetic nervous system. The parasympathetic nervous system is the part of the involuntary nervous system that is sometimes called the "rest and digest" system; the parasympathetic system conserves energy as it slightly slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles in the gastrointestinal tract.

Gender: All

Ages: 18 Years - 75 Years

Updated: 2026-10-13

1 state

Chronic Pain
Osteoarthritis, Knee
RECRUITING

NCT06478186

Knee Osteoarthritis Treatment With Zilretta vs. Kenalog in the Context of Type II Diabetes

A Phase 2 Randomized Study to Evaluate the Effects of triamcinolone acetonide extended-release (TA-ER; Zilretta) vs. triamcinolone acetonide immediate-release (TA-IR; Kenalog) on Blood Glucose Levels in Diabetic Subjects with Knee Osteoarthritis. Subjects should have Type 2 Diabetes Mellitus (T2DM) with HbA1C ≤9 that is managed without insulin and have been diagnosed with symptomatic unilateral or bilateral osteoarthritis (OA) of the knee, based on clinical and radiological criteria (if bilateral, then a target knee will be selected).Total study duration for individual subject will be about 4 months, which includes 3 weeks of Screening period, 10 days of pretreatment phase, treatment day, and 12 weeks of post-treatment period.

Gender: All

Ages: 40 Years - Any

Updated: 2026-10-13

1 state

Osteoarthritis, Knee
Diabetes Mellitus, Type 2
ACTIVE NOT RECRUITING

NCT04082533

Intravenous (IV) Hydrocortisone for TKA (Total Knee Arthroplasty)

In this study, total knee replacement patients will be determined to be stiff or non-stiff preoperatively. Stiffness designation is determined by preoperative range of motion (if flexion is \< 100 degrees, or extension lag is \> 10 degrees). The stiff and non-stiff groups will both be randomized to two groups to receive either intravenous hydrocortisone or a placebo at 3 intervals postoperatively. Patients will be followed up with in hospital and via the phone on postoperative day (POD) 1 and 2, as well as 6 weeks, 6 months, 1 year, and 2 years postoperatively. Patients will also have blood drawn preoperatively in the OR, on POD1, at their 6 week followup, and at their 1 and 2 year follow ups. This blood will be processed and analyzed.

Gender: All

Ages: 18 Years - 83 Years

Updated: 2026-10-13

1 state

Pain
Arthrofibrosis
Osteoarthritis, Knee
NOT YET RECRUITING

NCT07870967

Undenatured Type II Collagen for Knee Osteoarthritis Pain

This randomized, controlled, double-blind, three-arm parallel clinical trial will evaluate the efficacy and safety of undenatured type II collagen products on joint pain in adults diagnosed with knee osteoarthritis. Participants will be randomized to Nuvicol II, Nuvicol SII, or placebo and will consume one capsule daily for 4 months. Pain, quality of life, knee muscle function, concomitant analgesic medication use, cartilage degradation biomarkers, safety laboratory variables, and adverse events will be assessed during follow-up.

Gender: All

Ages: 31 Years - Any

Updated: 2026-10-13

1 state

Osteoarthritis, Knee
ACTIVE NOT RECRUITING

NCT06191848

Subcutaneous Tirzepatide Once-weekly in Patients With Obesity and Knee Osteoarthritis (STOP KNEE-OA)

This is a trial of tirzepatide in people with obesity and knee osteoarthritis. The main purpose of this study is to see if tirzepatide can reduce number of these participants who require a knee replacement. Participants will be randomized to take a weekly injection of tirzepatide or a placebo for a total of 72 weeks.

Gender: All

Ages: 18 Years - Any

Updated: 2026-10-13

1 state

Obesity
Knee Osteoarthritis
Osteoarthritis, Knee
COMPLETED

NCT07859878

Efficacy of High-Intensity Laser Therapy in Early-Stage Symptomatic Knee Osteoarthritis

This randomized, double-blind, sham-controlled clinical trial evaluated the effectiveness of high-intensity laser therapy (HILT) in patients with early-stage symptomatic knee osteoarthritis. A total of 39 participants were randomly assigned to receive either HILT combined with a standardized home exercise program or sham laser therapy combined with the same exercise program. Laser or sham treatment was administered over 10 weekday sessions during a two-week period. Participants were assessed at baseline, immediately after treatment, and at the three-month follow-up. Assessments included pain intensity, physical function, health-related quality of life, walking performance, knee range of motion, and muscle strength. The aim was to determine whether adding HILT to exercise provides additional clinical benefits compared with sham laser therapy combined with exercise.

Gender: All

Ages: 40 Years - 75 Years

Updated: 2026-10-08

1 state

Osteoarthritis, Knee
RECRUITING

NCT05986292

A Master Protocol Study (LY900028) of Multiple Intervention-Specific-Appendices (ISAs) in Participants With Chronic Pain

The purpose of the chronic pain master protocol is to compare independent pain interventions and establish an overarching structure for the disease-state addenda (DSA) and intervention-specific appendices (ISAs). The ISAs may start independently of other ISAs as interventions become available for clinical testing.

Gender: All

Ages: 18 Years - Any

Updated: 2026-09-23

24 states

Osteoarthritis, Knee
Diabetic Neuropathic Pain
Chronic Low-back Pain
COMPLETED

NCT06514703

Comparative Study of CT and Fluoroscopic Guided Genicular Nerve Ablation in the Treatment of Knee Osteoarthritis

The goal of this study is to evaluate the comparative effectiveness of CT-guided and fluoroscopic-guided genicular nerve ablation in reducing knee pain and improving function in adults diagnosed with knee osteoarthritis refractory to conservative treatment. The main questions it aims to answer are: * Does CT-guided genicular nerve ablation provide superior pain relief compared to fluoroscopic-guided genicular nerve ablation? * Is there a significant difference in functional improvement between the two techniques? Researchers will compare the outcomes between the CT-guided and fluoroscopic-guided groups to determine which method achieves better pain relief, functional enhancement, safety profile, and patient satisfaction. Participants will: * Undergo either CT-guided or fluoroscopic-guided genicular nerve ablation. * Attend scheduled follow-up visits to assess pain levels, knee function, and any adverse events. * Complete standardized questionnaires to provide feedback on pain relief, functional improvement, and overall satisfaction with the procedure.

Gender: All

Ages: 45 Years - 80 Years

Updated: 2026-09-23

1 state

Osteoarthritis, Knee
RECRUITING

NCT06951477

Gut Microbiome in Orthopaedics: Revision Total Knee Arthroplasty

Many patients who receive knee replacement surgery must return for a revision (or repeat) surgery due to ongoing pain, stiffness, infection, or implant loosening. The role of the gut microbiome-the collection of bacteria and other microbes within the human gastrointestinal tract-is just beginning to be recognized in orthopaedics. The gut microbiome has been found to affect the immune response and bone regulation, potentially contributing to infection or loosening after total joint replacement. Antibiotics are regularly used in orthopaedic surgery to reduce the risk of infection, yet they might also harm gut microbiota and reduce their potentially beneficial effects. As a result, understanding the relationship between gut microbiota and surgical outcomes has become increasingly important. Therefore, this study aims to determine if there are differences in gut microbiota composition between patients with well-functioning knee replacements and those requiring revision knee replacements. Additional study aims include assessing inflammation, implant loosening, metal ion levels, and circulating bacteria in blood or tissue between well-functioning or failed knee replacements.

Gender: All

Updated: 2026-09-22

1 state

Revision Total Knee Arthroplasty
Osteoarthritis, Knee
RECRUITING

NCT05800457

The Role of Synovectomy in Pain Reduction Following Total Knee Arthroplasty

Osteoarthritis (OA) is the most common joint disease, causing severe pain due to joint inflammation (synovitis). While total knee arthroplasty (TKA) is commonly performed to reduce pain, 20% of patients are dissatisfied with their outcome post-surgery. This dissatisfaction is caused by persistent pain post-TKA due to synovitis that is not routinely removed during surgery. To address this problem, a synovectomy can be performed during TKA, which involves resecting the inflamed layer of tissue lining the joint, called the synovium, and its associated sensory nerve endings. Since the synovium will regenerate in the months post-surgery, synovectomy only transiently reduces pain after TKA. The proposed study will help ascertain the benefits and effects of synovectomy in patients who are more likely to experience poor satisfaction (driven mostly by pain) post-TKA. This study will include 62 patients undergoing TKA due to end-stage OA who have moderate to severe synovitis, as determined by ultrasound assessment. Patients will be randomized (1:1) to undergo a TKA with synovectomy or without synovectomy. Primary and secondary outcomes will be assessed through patient-reported levels of pain and function, results from physical performance tests, and quality of life (QOL) scores. These measures will be recorded pre- and post-surgery for comparison. Through demonstrating that synovectomy can at least transiently reduce pain post-TKA, this study will provide evidence for the development of medical therapies that target the synovium to slow its regrowth. This will be transformative for the long-term management of joint pain and synovitis post-surgery, thus significantly improving patients' overall QOL.

Gender: All

Ages: 41 Years - 80 Years

Updated: 2026-09-22

1 state

Osteoarthritis, Knee
ACTIVE NOT RECRUITING

NCT05678231

Zero Degree Knee Positioner for Improved Earley Knee Extension Following Total Knee Arthroplasty

Studies have demonstrated that early rehabilitation interventions following knee arthroplasty (TKA) can shorten the time needed to regain baseline extension/full extension and gait mechanics. As telehealth visits and home-based rehabilitation increases with advancements in technology, much of this rehabilitation is projected to be performed at home. The purpose of this study is to prospectively evaluate early post-operative knee extension and self-reported outcomes in patients using the Zero Degree Knee positioner (ZDK) compared to subjects not using the ZDK. Patients electing to undergo primary TKA will be recruited into the study and randomized to receive and follow the ZDK protocol post-operatively or standard of care rehabilitation instructions. Knee extension measurements will be recorded at 2 weeks post-op and patient-reported outcome measurements will be recorded pre-operatively and at various post-op timepoints.

Gender: All

Ages: 40 Years - 80 Years

Updated: 2026-09-18

1 state

Osteoarthritis, Knee
NOT YET RECRUITING

NCT07827443

mFFE MRI Versus CT for Cortical Bone Evaluation in Knee Osteoarthritis

This cross-sectional study aims to evaluate the accuracy of multi-echo fast field echo (mFFE) MRI in depicting cortical bone changes in knee osteoarthritis compared with CT.

Gender: All

Ages: 40 Years - Any

Updated: 2026-09-18

Osteoarthritis, Knee
Bone Diseases
COMPLETED

NCT05706844

Spinal Anaesthesia vs. General Anaesthesia for THA, TKA and UKA

The goal of this randomized clinical trial is to investigate the postoperative recovery following hip and knee arthroplasty procedures depending on the use of either spinal anaesthesia (SA) or general anaesthesia (GA). The main questions are: * Are more patients able to be safely mobilized within 6 hours postoperatively when using GA compared to SA? * Does postoperative pain, nausea and vomiting, dizzyness, occurence of delirium and urinary retention differ between the anaesthetic methods? Participants, scheduled for total hip, total knee and unicomartmental knee arthroplasty, will be randomized to recieve spinal anaesthesia or general anaesthesia in relation to surgery. At 6 hours postoperatively a physiotherapist will conduct a 5-meter walking test to evaluate whether the participant can be safely mobilized.

Gender: All

Ages: 18 Years - Any

Updated: 2026-09-18

Osteoarthritis, Hip
Osteoarthritis, Knee
ACTIVE NOT RECRUITING

NCT04119687

Study to Evaluate the Safety and Tolerability of FX201 in Patients With Osteoarthritis of the Knee

This two-part study will be conducted in male and female patients, 30 - 80 years of age with painful OA of the index knee with Kellgren-Lawrence (K-L) Grade 2, 3 or 4. Part 1 - Single Ascending Dose (SAD) Phase: Up to three ascending doses of FX201 will be tested in cohorts of 5-8 patients. Each patient will only receive one injection of FX201. An independent Data Monitoring Committee (DMC) will review safety and guide the conduct of the study. Part 2 - Expansion Phase: Up to an additional 35 patients will be enrolled at each dose level reviewed by the DMC. Each patient will only receive one injection of FX201.

Gender: All

Ages: 30 Years - 80 Years

Updated: 2026-09-17

5 states

Osteoarthritis, Knee
NOT YET RECRUITING

NCT07825350

HTO and Tranexamic Acid Study

The purpose of the study is to assess the effect of Tranexamic acid (TXa), a commonly used medication to prevent bleeding, in reducing blood loss during High Tibial Osteotomy (HTO). HTO is a common procedure aimed at realigning patients that are bow-legged, in an attempt to reduce pain associated with osteoarthritis of the knee, and to prevent its progression. A secondary aim is to assess the effect of TXa in preventing side-effects of surgery related to the healing of surgical wound.

Gender: All

Updated: 2026-09-17

Osteoarthritis, Knee
TERMINATED

NCT05492851

Trial Comparing Three Single Dose Injections for Knee Osteoarthritis

This study is a 3-arm, double-blind, randomized trial comparing the clinical outcomes of Zilretta, Synvisc One, and Monovisc for knee OA.

Gender: All

Ages: 25 Years - 85 Years

Updated: 2026-09-17

1 state

Osteoarthritis, Knee
COMPLETED

NCT04045431

Treatment of Knee Osteoarthritis With PAAG-OA

This is a multi-center, randomized, double-blind clinical investigation to compare the effectiveness of intra-articular polyacrylamide hydrogel (PAAG-OA) and a hyaluronic acid, Synvisc-One to induce symptomatic benefit in subjects with knee osteoarthritis.

Gender: All

Ages: 40 Years - Any

Updated: 2026-09-16

Osteoarthritis, Knee
ACTIVE NOT RECRUITING

NCT07757464

Pre-emptive Insulin to Prevent High Glucose After a Knee Steroid Injection in Adults With Type 2 Diabetes

Steroid injections used to treat painful joints can temporarily increase glucose levels in people with type 2 diabetes. This study will test whether a short course of pre-emptive neutral protamine Hagedorn, NPH, insulin can reduce high glucose after a standard corticosteroid injection into the knee. Adults with type 2 diabetes who are scheduled to receive one intra-articular injection of triamcinolone acetonide 40 mg for knee osteoarthritis will be randomly assigned to one of two groups. The experimental group will receive a prespecified NPH insulin regimen beginning immediately after the injection and continuing for three doses. The comparison group will continue usual reactive diabetes management without pre-emptive NPH insulin. Both groups will use blinded continuous glucose monitoring and scheduled capillary glucose testing. The main outcome is the percentage of continuous glucose monitoring time above 180 mg/dL during the first 72 hours after the corticosteroid injection. Hypoglycaemia, rescue treatment, healthcare contacts, treatment burden, acceptability and adverse events will also be assessed.

Gender: All

Ages: 40 Years - 80 Years

Updated: 2026-09-15

Diabetes Mellitus, Type 2
Hyperglycemia Due to Type 2 Diabetes Mellitus
Osteoarthritis, Knee
ACTIVE NOT RECRUITING

NCT03519269

Navio Robotic Versus Conventional Total Knee Arthroplasty

Total knee replacement surgery is a conventional approach to alleviating the pain and lack of function resulting from arthritis of the knee. While conventional knee replacement surgery is highly successful, incidences of improperly installed replacement parts are not uncommon. To improve outcomes, robotic-assisted total knee replacement surgery has recently become available, and has been shown to be extremely effective for partial knee replacement surgery. However, further research is needed to determine if this same technology can be equally effective for total knee replacement surgery. The present study will evaluate outcomes of robotic-assisted versus conventional total knee replacement surgery in patients between 40 and 85 years old with end stage arthritis of the knee. Other than surgical technique, patients will receive the same operative care and knee replacement implants. In addition to standard x-rays, subjects will be asked to complete several short-term clinical and functional tests and questionnaires to determine outcomes of their surgery.

Gender: All

Ages: 40 Years - 85 Years

Updated: 2026-09-15

1 state

Osteoarthritis, Knee
COMPLETED

NCT06623773

Study on Structum® in Adult Patients With Osteoarthritis (TRUST)

Chondroitin sulfate (CS) is a Symptomatic Slow Acting Drugs for OsteoArthritis (SYSADOA) and a natural biomacromolecule belonging to the class of glycosaminoglycans. CS is a major component of the extracellular matrix (ECM), where it constitutes an essential component of proteoglycans. To this date, no real-world studies have been conducted to precisely describe the burden associated with osteoarthritis (OA) among patients treated with CS.Therefore, an observational, descriptive, prospective, national study will be conducted to describe the burden associated with OA and the quality of life of patients treated with Structum® in Poland.

Gender: All

Ages: 50 Years - 85 Years

Updated: 2026-09-08

Osteoarthritis, Knee
WITHDRAWN

NCT05454566

A Study Evaluating the Safety, Tolerability, and Activity of ICM-203 in Subjects With Knee Osteoarthritis.

The purpose of this study is to determine the safety, tolerability, and activity of ICM-203, a recombinant adeno-associated viral (AAV) vector that expresses a therapeutic gene that promotes cartilage formation, reduces joint inflammation and pain, as well as improves joint physical function, by injecting escalating doses of ICM-203 into the knee of subjects with mild to moderate knee osteoarthritis (OA). Approximately 6 to 18 subjects will be enrolled into 3 successive dose-escalating groups in a 3+3 study design, whereby 3 study subjects in each group will be dosed sequentially with ICM-203 and 3 additional subjects will be dosed at the same dose level if a dose limiting toxicity (DLT) occurs in any of the first 3 subjects.

Gender: All

Ages: 50 Years - 80 Years

Updated: 2026-09-08

Osteoarthritis, Knee
RECRUITING

NCT04992624

Cannabinoid Interactions With Central and Peripheral Pain Mechanisms in Osteoarthritis of the Knee

This clinical trial is being done to better understand how daily treatment with Tetrahydrocannabinol (THC), Cannabidiol (CBD), or the combination of CBD plus THC affects knee osteoarthritis pain and other related symptoms. Consented participants will have a screening period and visit (up to 30 days to treatment start). If participants pass the screening phase, they will be randomly assigned to take one of the investigational study drugs. For this study, participants will not know when or if they are taking CBD, THC, THC plus CBD, and when or if taking placebo. Clinical pain will be assessed at multiple times throughout the study, and eligibility will be re-assessed at two weeks into the treatment period. It is possible that subjects will not be able to participate in the study after 14 days of of treatment. The treatment period will take approximately 16 weeks and then a follow-up period for approximately 2 weeks. In addition to treatment, participants will have clinical assessments, blood draws, questionnaires, daily pain diaries, sensory testing, as well as have functional connectivity magnetic resonance imaging (fcMRI).

Gender: All

Ages: 21 Years - 75 Years

Updated: 2026-09-04

1 state

Osteoarthritis, Knee
Osteoarthritis of the Knee
RECRUITING

NCT07641517

A Chronic Pain Master Protocol (CPMP): A Study of LY4065967 in Participants With Osteoarthritis Pain

The main purpose of this study is to test the safety and efficacy of study drug for the treatment of knee pain due to osteoarthritis (OA). This trial is part of the chronic pain master protocol H0P-MC-CPMP (NCT05986292), which is a protocol to accelerate the development of new treatments for chronic pain.

Gender: All

Ages: 40 Years - Any

Updated: 2026-09-04

18 states

Osteoarthritis, Knee
Chronic Pain
ACTIVE NOT RECRUITING

NCT05752032

A Long Term Follow-up Study of Subjects Who Received ICM-203 or Matching Placebo

This is an observational study of the long term safety and efficacy of ICM-203.

Gender: All

Ages: 50 Years - 80 Years

Updated: 2026-09-03

2 states

Osteoarthritis, Knee