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ClinicalTrials.gov 41 recruiting now full pipeline #134 of 28,707 conditions

Knee Osteoarthritis: full-pipeline trial registry

41 of 102 indexed Knee Osteoarthritis trials are currently recruiting.

Corpus placement: #134 of 28,707 conditions by registered trial count.

102 US clinical trials · 41 currently recruiting · #134 of 28,707 conditions by registered trial count

Knee Osteoarthritis: 102 US clinical trials tracked, 41 recruiting.

Knee Osteoarthritis is the subject of 102 registered US clinical trials on ClinicalTrials.gov, 41 of them currently open to new participants. 14 are in Phase 3-4 (later-stage) and 17 in Phase 1-2 (earlier-stage). The most active sponsor is Northwestern University, running 3 of these trials.

Enrollment posture brief

Registry condition knee-osteoarthritis

OPEN 41 | RECR 40% | LATE 14 | EARLY 17 | RANK #134 | SPON 3

Nearest open-share peer: Metastatic Cancer (40% recruiting · 117 trials)

Amyotrophic Lateral Sclerosi45.6%Blood Pressure43.1%Knee Osteoarthritis (this)40%Chronic Kidney Disease31.1%Attention Deficit Hyperactiv28.2%
Open-enrollment share among volume-matched conditions near Knee Osteoarthritis

Knee Osteoarthritis lists 41 open slots (40% of 102 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 Knee Osteoarthritis 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. Knee Osteoarthritis is recruiting above its size-band peers.

    41 of 102 indexed trials (40.2%) 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 Knee Osteoarthritis trials is spread across many organizations.

    Northwestern University accounts for 3 of 102 trials (2.9%). 77 distinct sponsors appear on at least one study for this condition label.

  3. Typical Knee Osteoarthritis enrolment sits around 83 participants.

    Median target enrolment is 83 among the 102 trials that report a genuine target (sentinel values excluded). 56 of those (54.9%) plan for fewer than 100 participants.

  4. Knee Osteoarthritis research is mostly interventional.

    88 interventional and 14 observational studies make up this index (86.3% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 18Phase 29Phase 36Phase 48

Open and recent trials

102 total, page 2 of 3

ACTIVE NOT RECRUITING Phase 1 67 participants

Safety and Pharmacodynamics of GNSC-001 Intra-articular Injection for Knee Osteoarthritis

Genascence Corporation

NCT05835895

ACTIVE NOT RECRUITING NA 60 participants

Impact of Different Exercise Programs on Knee OA

Shirley Ryan AbilityLab

NCT05844124

ACTIVE NOT RECRUITING Phase 4 46 participants

Extended Postoperative Oral Tranexamic Acid in Knee Replacement

Campbell Clinic

NCT05099276

ACTIVE NOT RECRUITING NA 32 participants

A Powered Exoskeleton for Veterans With Knee OA

VA Office of Research and Development

NCT04653896

ACTIVE NOT RECRUITING NA 30 participants

Blood-Flow Restriction Exercise Following a Knee Replacement

Michigan Technological University

NCT04018638

ACTIVE NOT RECRUITING NA 30 participants

Dorsal Root Ganglion Stimulation for the Treatment of Arthritic Knee Pain

Kenneth B Chapman

NCT05103527

ACTIVE NOT RECRUITING NA 19 participants

Telehealth Stepped Exercise Program for Rural Veterans With Knee Osteoarthritis

Durham VA Medical Center

NCT04775589

ACTIVE NOT RECRUITING Phase 1 16 participants

Impact of Mesenchymal Stem Cells in Knee Osteoarthritis

University Hospitals Cleveland Medical Center

NCT03477942

COMPLETED 4,796 participants

Osteoarthritis Initiative (OAI): A Knee Health Study

National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)

NCT00080171

COMPLETED 950 participants

A Retrospective Study to Evaluate the ConforMIS iUni, iDuo & iTotal® KRS

Restor3D

NCT03152357

COMPLETED Phase 3 516 participants

Efficacy of Amniotic Suspension Allograft in Patients With Osteoarthritis of the Knee

Organogenesis

NCT04636229

COMPLETED Phase 3 496 participants

Patient-Reported Outcomes in Evaluating Lorecivivint (SM04690) for Moderate to Severe Knee Osteoarthritis (STRIDES-1)

Biosplice Therapeutics

NCT04385303

COMPLETED Phase 2 447 participants

Micronized dHACM vs. Saline in the Treatment of Osteoarthritis of the Knee

MiMedx Group

NCT03485157

COMPLETED Phase 2 223 participants

Safety/Efficacy of Balicatib (AAE581) in Adults With Osteoarthritis of the Knee

Novartis Pharmaceuticals

NCT00371670

COMPLETED NA 200 participants

The Effects of Specialized Footwear in Osteoarthritis

Rush University Medical Center

NCT01597830

COMPLETED NA 200 participants

Effectiveness of BREG Flex in 12-week Peri-operative Total Knee Arthroplasty

The Hawkins Foundation

NCT03840096

COMPLETED Phase 3 173 participants

Microfragmented Adipose Tissue Compared to Corticosteroid Injection for the Treatment of Knee Osteoarthritis

Lipogems International spa

NCT05660772

COMPLETED Phase 3 167 participants

Phase 3 Adductor Canal Block With EXPAREL in Subjects Undergoing Primary Unilateral Total Knee Arthroplasty

Pacira Pharmaceuticals

NCT05139030

COMPLETED NA 159 participants

Evaluation of a Home-based NMES Therapy for Knee Osteoarthritis Pain

CyMedica Orthopedics

NCT04128618

COMPLETED Phase 2 120 participants

A Study Evaluating the Safety and Efficacy of Intra-articular Injections of TPX-100 in Subjects With Mild to Moderate Patello-Femoral Osteoarthritis Involving Both Knees

OrthoTrophix

NCT01925261

COMPLETED NA 120 participants

Shared Decision Making in Patients With Osteoarthritis of the Hip and Knee

University of California, San Francisco

NCT01492257

COMPLETED 110 participants

Brain Biomarker of Endogenous Analgesia in Patients With Chronic Knee Pain

University of Pittsburgh

NCT05003323

COMPLETED Phase 4 90 participants

Bone Marrow Aspirate Compared to Platelet Rich Plasma for Treating Knee Osteoarthritis

Andrews Research & Education Foundation

NCT03289416

COMPLETED NA 83 participants

Yoga Versus Exercises for Managing OA

University of Minnesota

NCT02525341

COMPLETED NA 75 participants

Vibratory Stimuli, A Novel Rehabilitation Method for Preventing Post - Traumatic Knee Osteoarthritis

University of North Carolina, Chapel Hill

NCT02605876

COMPLETED Phase 4 70 participants

The Effect of Intra-articular Bilateral Knee Injections of Zilretta on Performance Measures in Adults With Knee OA

University of Kansas Medical Center

NCT03895840

COMPLETED NA 66 participants

Development of a Mind Body Program for Obese Knee Osteoarthritis Patients With Comorbid Depression

University of Kentucky

NCT04334278

COMPLETED NA 64 participants

Evaluation of NMES Therapy for Pain Relief Associated With Knee Osteoarthritis

CyMedica Orthopedics

NCT04367597

COMPLETED NA 63 participants

Ultrasound Guided Knee Injections in Musculoskeletal Medicine

Andrews Research & Education Foundation

NCT03293238

COMPLETED Phase 1 60 participants

Comparative Usability Evaluation of Sustained Acoustic Medicine (SAM) Devices and Topical Gel for OA Knee Pain

ZetrOZ

NCT05050448

COMPLETED Phase 2 55 participants

A Study to Evaluate the Safety and Efficacy of CNTX-6970 in Subjects With Knee Osteoarthritis Pain.

Maurizio Fava, MD

NCT05025787

COMPLETED Phase 4 52 participants

The Efficacy of Diclofenac Gel for Breakthrough Pain and the Neuropathic Components of Pain in Knee Osteoarthritis

Brigham and Women's Hospital

NCT01383954

COMPLETED NA 51 participants

Gold Factor on Knee Joint Health and Function

4Life Research

NCT05347602

COMPLETED NA 48 participants

Regenexx™ SD Versus Exercise Therapy for Treatment of Knee Osteoarthritis With Historical Comparison to TKA

Regenexx

NCT02034032

COMPLETED Phase 2 48 participants

Intraarticular Dextrose Prolotherapy for Symptomatic Knee Osteoarthritis

Mayo Clinic

NCT05160532

COMPLETED NA 40 participants

Tai Chi Mind-Body Therapy for Knee Osteoarthritis

Tufts Medical Center

NCT00362453

COMPLETED Phase 4 40 participants

Efficacy of Celecoxib vs Placebo to Prevent Pain in a Paced Walk

University Hospitals Cleveland Medical Center

NCT00194090

COMPLETED NA 40 participants

Shoe Modification and Knee Osteoarthritis

VA Office of Research and Development

NCT00105365

COMPLETED NA 35 participants

KAATSU Training to Enhance Physical Function of Older Adults With Osteoarthritis

University of Florida

NCT02132715

COMPLETED NA 30 participants

Effects of Vagus Nerve Stimulation on Central Pain Sensitivity & Parasympathetic Function in Knee Osteoarthritis

University of Texas, El Paso

NCT05625178

COMPLETED NA 30 participants

Strengthening Exercise and Quadriceps Force During Walking

Frederiksberg University Hospital

NCT01538407

COMPLETED NA 30 participants

Intra-articular Pulsed Radiofrequency Neuromodulation Versus Intra-articular Steroids for Painful Knee Osteoarthritis

Center For Interventional Pain and Spine

NCT04238598

COMPLETED 25 participants

Effects of Bracing on Knee Osteoarthritis (OA)

Stony Brook University

NCT01886144

COMPLETED NA 21 participants

Self Transcranial Direct Current Stimulation for Pain in Older Adults With Knee Osteoarthritis

The University of Texas Health Science Center, Houston

NCT03425019

COMPLETED Phase 1 20 participants

Autologous Alpha-2 Macroglobulin Rich Plasma, Safety and Efficacy in Symptomatic Moderate Knee Osteoarthritis

Mayo Clinic

NCT06329492

COMPLETED NA 19 participants

Investigating Racial Differences in Diet Benefits for Knee Osteoarthritis

University of Alabama at Birmingham

NCT04343716

COMPLETED Phase 1 16 participants

A Study to Compare Levels of Capsaicin After Intra-Articular Injection and Topical Application in Patients With Painful Knee Osteoarthritis

Centrexion Therapeutics

NCT03576508

COMPLETED NA 16 participants

Blood Flow Restriction Training in Individuals Awaiting Total Knee Replacement

The University of Texas Health Science Center at San Antonio

NCT06111690

COMPLETED NA 13 participants

Influence of Noxious Electrical Stimulation on Chronic Pain From Knee Osteoarthritis

University of New England

NCT04628013

COMPLETED Phase 4 12 participants

To Look at the Characteristics of Synovial Fluid and Cartilage Matrix in Osteoarthritic Knee After Hyaluronic Acid Injection

University of California, San Francisco

NCT01895959

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Phase Distribution

PhaseTrial count
Phase 1 8
Phase 2 9
Phase 3 6
Phase 4 8

Named interventions

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

Placebo Drug
9 trials
Health Enhancement Program Behavioral
2 trials
Low-carbohydrate diet Behavioral
1 trials
Noxious Electrical Stimulation (NxES) Device
1 trials
Blood Flow Restriction Training (BFRT) Procedure
1 trials
Lorecivivint Drug
1 trials
Placebo Intra-Articular Injection Procedure
1 trials
Standard of Care Intra- Articular Injection Procedure
1 trials

US sites by state

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

California 22 trials
Illinois 19 trials
Florida 17 trials
New York 13 trials
North Carolina 12 trials
Texas 11 trials
Pennsylvania 10 trials
Ohio 10 trials

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

What to do with this Knee Osteoarthritis page

102 registered trials, 41 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 Knee Osteoarthritis condition card totals 102 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.