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ClinicalTrials.gov 45 recruiting now full pipeline #110 of 28,707 conditions

Osteoarthritis, Knee: full-pipeline trial registry

45 of 115 indexed Osteoarthritis, Knee trials are currently recruiting.

Corpus placement: #110 of 28,707 conditions by registered trial count.

115 US clinical trials · 45 currently recruiting · #110 of 28,707 conditions by registered trial count

Osteoarthritis, Knee: 115 US clinical trials tracked, 45 recruiting.

Osteoarthritis, Knee is the subject of 115 registered US clinical trials on ClinicalTrials.gov, 45 of them currently open to new participants. 23 are in Phase 3-4 (later-stage) and 34 in Phase 1-2 (earlier-stage). The most active sponsor is Regeneron Pharmaceuticals, running 4 of these trials.

Enrollment posture brief

Registry condition osteoarthritis-knee

OPEN 45 | RECR 39% | LATE 23 | EARLY 34 | RANK #110 | SPON 4

Nearest open-share peer: Advanced Non-Small-Cell Lung Cancer (39% recruiting · 23 trials)

Diffuse Large B Cell Lymphom46.1%Pain, Postoperative40.4%Metastatic Cancer40.2%Osteoarthritis, Knee (this)39%Overweight and Obesity34.5%
Open-enrollment share among volume-matched conditions near Osteoarthritis, Knee

Osteoarthritis, Knee lists 45 open slots (39% of 115 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →

Key findings

What ClinicalTrials.gov does not surface for Osteoarthritis, Knee on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.

  1. Osteoarthritis, Knee is recruiting above its size-band peers.

    45 of 115 indexed trials (39.1%) are open to enrollment, against a 37.1% average across 139 conditions with 100+ trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

  2. Sponsorship of Osteoarthritis, Knee trials is spread across many organizations.

    Regeneron Pharmaceuticals accounts for 4 of 115 trials (3.5%). 90 distinct sponsors appear on at least one study for this condition label.

  3. Typical Osteoarthritis, Knee enrolment sits around 120 participants.

    Median target enrolment is 120 among the 113 trials that report a genuine target (sentinel values excluded). 44 of those (38.9%) plan for fewer than 100 participants.

  4. Osteoarthritis, Knee research is mostly interventional.

    104 interventional and 11 observational studies make up this index (90.4% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 117Phase 217Phase 314Phase 49

Open and recent trials

115 total, page 1 of 3

RECRUITING NA 10,000 participants

Outcomes of Low-Impact Exercise Program for People With Ankle, Knee, and/or Hip Pain

University of Missouri-Columbia

NCT03711773

RECRUITING Phase 2 10,000 participants

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

Eli Lilly and Company

NCT05986292

RECRUITING NA 1,230 participants

The Osteoarthritis Prevention Study

Wake Forest University

NCT05946044

RECRUITING 1,000 participants

Embo Registry; National Registry for Artery Embolization

Vascular Solutions of North Carolina

NCT06477965

RECRUITING NA 800 participants

Physica System Total Knee Replacement Registry Study

Limacorporate S.p.a

NCT03048201

RECRUITING 760 participants

Persona OsseoTi Keel Compatibility Study (Total Knee Arthroplasty)

Zimmer Biomet

NCT05787821

RECRUITING Phase 2 512 participants

Preventing Injured Knees From osteoArthritis: Severity Outcomes

Brigham and Women's Hospital

NCT06096259

RECRUITING Phase 3 466 participants

A Study to Investigate the Treatment Effect of Subcutaneous Injections of Pentosan Polysulfate Sodium Compared With Placebo in Adult Participants With Knee Osteoarthritis Pain.

Paradigm Biopharmaceuticals

NCT06917404

RECRUITING Phase 2 400 participants

An Study to Evaluate Safety and Tolerability of OA-SYS in Subjects With Moderate to Severe Osteoarthritis of the Knee Joint

Ageless Biotech

NCT06485843

RECRUITING Phase 2 380 participants

Cannabidiol for Postoperative Opioid Reduction in Primary Total Knee Arthroplasty

Chad Brummett

NCT06234631

RECRUITING Phase 2 300 participants

Sustained Acoustic Medicine for Symptomatic Treatment of Knee Pain Related to Osteoarthritis

ZetrOZ

NCT06257537

RECRUITING Phase 3 254 participants

Rehabilitation for Arthritis of The Knee: mainTaining Improvement for Veterans

VA Office of Research and Development

NCT06488144

RECRUITING Phase 4 242 participants

ZYNRELEF for Pain Management in Total Knee Arthroplasty

Baptist Health South Florida

NCT05644496

RECRUITING Phase 2 200 participants

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

Steven E Harte, PhD

NCT04992624

RECRUITING Phase 4 150 participants

Triamcinolone Ketorolac (TriKe) Knee Trial

United Health Services Hospitals

NCT05336968

RECRUITING NA 150 participants

Biomechanical Footwear as a Non-invasive Alternative and Supplement to Total Knee Replacement

Geisinger Clinic

NCT04732962

RECRUITING NA 150 participants

Optimizing Pain Self-Management in Total Knee Arthroplasty

University of Virginia

NCT06038240

RECRUITING Phase 4 148 participants

Reducing Perioperative Oxidative Stress to Prevent Postoperative Chronic Pain Following Total Knee Arthroplasty

Vanderbilt University Medical Center

NCT06083480

RECRUITING Phase 2 140 participants

A Phase 2b/3a Study to Evaluate the Efficacy and Safety of JointStem in Patients Diagnosed as Knee Osteoarthritis

Nature Cell Co.

NCT04368806

RECRUITING Phase 1 130 participants

Oral Steroid Taper After Total Knee Arthroplasty

Columbia University

NCT07070882

RECRUITING NA 128 participants

Radio- KO Radiotherapy for Knee Osteoarthritis Clinical Trial

Mayo Clinic

NCT06887829

RECRUITING 120 participants

Perfusion MRI-targeted Joint Embolization for Chronic Musculoskeletal Pain of the Shoulder, Hip and Knee

Palo Alto Veterans Institute for Research

NCT05700682

RECRUITING Phase 4 120 participants

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

University of Kansas Medical Center

NCT06478186

RECRUITING Early Phase 1 120 participants

Safety and Feasibility of Umbilical Cord Wharton's Jelly Allograft Injections for Knee Osteoarthritis

R3 Medical Research

NCT06608134

RECRUITING NA 120 participants

MISHA Post-Market Clinical Study

Moximed

NCT06118892

RECRUITING NA 114 participants

Vibration and Post-traumatic Osteoarthritis Risk Following ACL Injury

University of North Carolina, Chapel Hill

NCT04875052

RECRUITING NA 100 participants

MOTION Clinical Trial

Moximed

NCT06843980

RECRUITING NA 100 participants

Prospective Functional, Gait, and Outcome Comparison Study of Medial Pivot Versus Single Radius Design for Total Knee Arthroplasty

LifeBridge Health

NCT04814082

RECRUITING NA 100 participants

Adipose-Derived Biocellular Regenerative Therapy for Osteoarthritis

Healeon Medical

NCT04238143

RECRUITING NA 86 participants

Navio Robotic Versus Conventional Total Knee Arthroplasty

Columbia University

NCT03519269

RECRUITING NA 72 participants

Effect of Anti-inflammatory Diet in Osteoarthritis

University of California, San Diego

NCT06080347

RECRUITING NA 70 participants

Gait Rehabilitation to Treat FastOA

University of North Carolina, Chapel Hill

NCT05848622

RECRUITING NA 60 participants

Non-invasive Evaluation of Upper and Lower Body Function With Showmotion

University of Colorado, Denver

NCT04137835

RECRUITING Phase 1 55 participants

The Role of Vitamin K on Knee Osteoarthritis Outcomes

Boston University

NCT06385275

RECRUITING NA 44 participants

Mobilizing Hispanics With Knee Osteoarthritis

University of Arizona

NCT06522906

RECRUITING NA 40 participants

Positive Minds Strong Joints for Knee Osteoarthritis

Boston University Charles River Campus

NCT06493903

RECRUITING Phase 2 38 participants

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

Wake Forest University Health Sciences

NCT04427709

RECRUITING NA 31 participants

Effects of Movement Retraining on Knee Loading in Individuals With Knee Osteoarthritis

Stanford University

NCT06208631

RECRUITING Phase 1 30 participants

CBD for Knee Osteoarthritis

University of Florida

NCT06414473

RECRUITING NA 30 participants

Effect of Anti-inflammatory (ITIS) Diet in Knee Osteoarthritis

University of California, San Diego

NCT05559463

RECRUITING NA 30 participants

Effects of Home Base Whole-body Vibration in Osteoarthritis. (VIBE-Rx2)

Augusta University

NCT06058169

RECRUITING Phase 1 24 participants

A Hip Flexion Feedback System for Exercise Monitoring in Individuals With Osteoarthritis and Obesity

University of Southern Mississippi

NCT05997862

RECRUITING NA 20 participants

Geniculate Artery Embolization for Osteoarthritis

University of Minnesota

NCT04456569

RECRUITING NA 12 participants

Bayer OA Knee Pain Pilot

Medical University of South Carolina

NCT05349682

RECRUITING NA 10 participants

Bone Marrow Aspirate Concentrate (BMAC)Treatment for Knee Osteoarthritis

University of California, San Diego

NCT04716803

ACTIVE NOT RECRUITING Phase 3 2,300 participants

A Study of Retatrutide (LY3437943) in Participants Who Have Obesity or Overweight

Eli Lilly and Company

NCT05929066

ACTIVE NOT RECRUITING Phase 2 602 participants

Treatment Effects of Subcutaneous Injections of Pentosan Polysulfate Sodium vs Placebo in Participants With Knee OA Pain

Paradigm Biopharmaceuticals USA (INC)

NCT04809376

ACTIVE NOT RECRUITING Phase 3 540 participants

A Study to Evaluate Efficacy and Safety of AMZ001 for the Treatment of Knee Osteoarthritis Symptoms

Amzell

NCT06693648

ACTIVE NOT RECRUITING NA 280 participants

Pain & Aging: Combined Interventions for Fitness in the Community Study

University of Washington

NCT04099394

ACTIVE NOT RECRUITING 250 participants

Clinical Outcomes of Joint Arthroplasty

St. Helena Hospital Coon Joint Replacement Institute

NCT03668691

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Phase Distribution

PhaseTrial count
Phase 1 17
Phase 2 17
Phase 3 14
Phase 4 9

Named interventions

Most-linked intervention names on Osteoarthritis, Knee records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.

Placebo Drug
13 trials
Placebo Other
5 trials
Fasinumab Drug
3 trials
Sustained Acoustic Device with 0% Diclofenac Patch Device
2 trials
Naproxen Drug
2 trials
MISHA Knee System Device
2 trials
2.5% Diclofenac Patches Drug
2 trials
Sustained Acoustic Device with 2.5% Diclofenac Patch Device
2 trials

US sites by state

Facility locations filed on Osteoarthritis, Knee trials. A trial with sites in several states counts in each.

California 40 trials
Florida 31 trials
New York 24 trials
North Carolina 22 trials
Arizona 22 trials
Illinois 18 trials
Texas 15 trials
Maryland 14 trials

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

What to do with this Osteoarthritis, Knee page

115 registered trials, 45 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Osteoarthritis, Knee condition card totals 115 registered trials; most-linked intervention Placebo; top US site state California. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.