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ClinicalTrials.gov public records Last synced May 21, 2026, 10:09 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 65 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Knee Cap Clear all
Completed No phase listed Observational
View directory record Official record
Conditions
Patellofemoral Pain Syndrome
Interventions
Not listed
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 55 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2013
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 19, 2026 · Synced May 21, 2026, 10:09 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Arthroplasty, Replacement, Knee, Thromboembolism
Interventions
Dabigatran Dose 1 - day 2 to completion, Dabigatran Dose 1 - day 1, Dabigatran Dose 2 - day 2 to completion, Dabigatran Dose 2 - day 1, Enoxaparin
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years and older
Enrollment
2,615 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2004
U.S. locations
59
States / cities
Birmingham, Alabama • Northport, Alabama • Tucson, Arizona + 48 more
Source: ClinicalTrials.gov public record
Updated May 4, 2014 · Synced May 21, 2026, 10:09 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Osteoarthritis, Chronic Pain
Interventions
ALO-01 (Morphine Sulfate Plus Naltrexone Hydrochloride Extended Release), Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
21 Years and older
Enrollment
547 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
81
States / cities
Birmingham, Alabama • Mobile, Alabama • Peoria, Arizona + 69 more
Source: ClinicalTrials.gov public record
Updated Sep 19, 2013 · Synced May 21, 2026, 10:09 PM EDT
Active, not recruiting No phase listed Observational
View directory record Official record
Conditions
Cartilage Injury, Cartilage Damage
Interventions
Cryopreserved Osteochondral Allograft
Procedure
Lead sponsor
AlloSource
Industry
Eligibility
18 Years to 60 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2028
U.S. locations
3
States / cities
Chicago, Illinois • Lexington, Kentucky • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 24, 2025 · Synced May 21, 2026, 10:09 PM EDT
Recruiting Not applicable Interventional
View directory record Official record
Conditions
Orthopedic Disorder, Anterior Cruciate Ligament Injuries
Interventions
Quad tendon, BTB
Procedure
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
14 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2030
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jun 7, 2025 · Synced May 21, 2026, 10:09 PM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
ACL Repair, Posterior Cruciate Ligament (PCL) Repair, Medial Collateral Ligament (MCL), Lateral Collateral Ligament (LCL), Posterior Oblique Ligament (POL), Patellar Realignment and Tendon Repairs, Vastus Medialis Obliquus Advancement, Iliotibial Band Tenodesis, Extra-capsular Repairs, Knee Repair
Interventions
Not listed
Lead sponsor
Smith & Nephew, Inc.
Industry
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
3
States / cities
Rockford, Illinois • Charlotte, North Carolina • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 7, 2021 · Synced May 21, 2026, 10:09 PM EDT
Recruiting Not applicable Interventional
View directory record Official record
Conditions
Femoral Neck Fractures, Intertrochanteric Fractures, Femoral Shaft Fracture, Distal Femur Fracture, Patella Fracture, Tibial Shaft Fracture with or Without Associated Fibula Fracture, Ankle Fracture (bimalleolar Equivalent, Bimalleolar, or Trimalleolar), Tibial Pilon Fracture, Talar Head, Neck, Body, or Process Fractures, Calcaneus Fractures, Lisfranc Injuries, Isolated or Multiple Metatarsal Fractures, Phalanx Fractures of the Foot, Single or Multiple, Clavicle Fractures, Proximal Humerus Fractures, Humeral Shaft Fractures, Distal Humerus Fractures (intra or Extra-articular), Olecranon Fractures, Radial Head or Neck Fractures, Elbow Fractures Involving a Combination of Fractures of the Radius and Uln, Forearm Fractures (both Bone Forearm Fractures, Isolated Ulnar Shaft, Isolated Radial Shaft), Distal Radius Fractures
Interventions
Opioid-free pain treatment
Other
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Oct 25, 2024 · Synced May 21, 2026, 10:09 PM EDT
Recruiting No phase listed Observational
View directory record Official record
Conditions
Patellar Dislocation, Recurrent, Patellar Dislocation, Patellar Instability, Patellofemoral Dislocation, Patellofemoral Joint Dislocation, Patellofemoral Disorder
Interventions
Medial Patellofemoral Ligament (MPFL) Reconstruction
Procedure
Lead sponsor
Hospital for Special Surgery, New York
Other
Eligibility
10 Years to 35 Years
Enrollment
850 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
16
States / cities
Redwood City, California • Gainesville, Florida • Chicago, Illinois + 10 more
Source: ClinicalTrials.gov public record
Updated Feb 12, 2026 · Synced May 21, 2026, 10:09 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Patellar Tendinitis
Interventions
PRP, Dry Needling, Dry Needling - Sham
Biological · Procedure
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 39 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 25, 2023 · Synced May 21, 2026, 10:09 PM EDT
Completed Phase 4 Interventional Results available
View directory record Official record
Conditions
Knee Osteoarthritis, Primary Total Knee Arthroplasty, Physical Therapy, Pain, Knee Extension
Interventions
Ropivacaine, Interspace Between the Popliteal Artery and Capsule of the Knee (iPACK) Block, Saline
Drug · Procedure
Lead sponsor
Duke University
Other
Eligibility
18 Years to 75 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 20, 2021 · Synced May 21, 2026, 10:09 PM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Chondrosis, Patellar Articular Cartilage Lesions, Trochlear Articular Cartilage Lesions
Interventions
Not listed
Lead sponsor
Orthopaedic Research Foundation
Other
Eligibility
18 Years to 50 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1995 – 2005
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Sep 20, 2005 · Synced May 21, 2026, 10:09 PM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Medial Patellar Femoral Ligament Reconstruction Rehabilitation, Anterior Cruciate Ligament Reconstruction Rehabilitation
Interventions
Rehabilitation utilizing blood flow restrictive therapy
Other
Lead sponsor
Richard Watson, PT
Other
Eligibility
13 Years to 40 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated May 16, 2024 · Synced May 21, 2026, 10:09 PM EDT
Active, not recruiting Not applicable Interventional
View directory record Official record
Conditions
Anterior Cruciate Ligament Injury, Anterior Cruciate Ligament Reconstruction, Joint Instability
Interventions
Anterior cruciate ligament reconstruction (ACLR), Lateral extra-articular tenodesis (LET)
Procedure
Lead sponsor
University of Pittsburgh
Other
Eligibility
14 Years to 25 Years
Enrollment
1,236 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2028
U.S. locations
14
States / cities
Redwood City, California • San Francisco, California • Orlando, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Apr 13, 2026 · Synced May 21, 2026, 10:09 PM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Patellar Tendinopathy
Interventions
Heated Lidocaine and Tetracaine Patch
Drug
Lead sponsor
ZARS Pharma Inc.
Industry
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Warren, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 15, 2012 · Synced May 21, 2026, 10:09 PM EDT
Not listed Not applicable Interventional
View directory record Official record
Conditions
Defect of Articular Cartilage, Knee Injuries
Interventions
Particulated Juvenile Articular Cartilage
Other
Lead sponsor
Zimmer Orthobiologics, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2021
U.S. locations
16
States / cities
Los Angeles, California • San Deigo, California • Aurora, Colorado + 13 more
Source: ClinicalTrials.gov public record
Updated Jan 25, 2017 · Synced May 21, 2026, 10:09 PM EDT
Withdrawn Not applicable Interventional
View directory record Official record
Conditions
Patellofemoral Joint Dislocation, Bicep Tendon Rupture
Interventions
Blood Flow Restriction (BFR) Therapy, Physical Therapy
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 80 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 28, 2025 · Synced May 21, 2026, 10:09 PM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Total Knee Replacement, Arthroplasty, Patella
Interventions
Primary Total Knee Replacement Surgery
Procedure
Lead sponsor
Northwell Health
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 27, 2013 · Synced May 21, 2026, 10:09 PM EDT
Completed No phase listed Observational Results available
View directory record Official record
Conditions
Patellar (or Kneecap) Instability and Mal-alignment
Interventions
Not listed
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
16 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
2
States / cities
Amherst, New York • Orchard Park, New York
Source: ClinicalTrials.gov public record
Updated Oct 2, 2019 · Synced May 21, 2026, 10:09 PM EDT
Not yet recruiting Not applicable Interventional
View directory record Official record
Conditions
Trauma, Patella Fracture, Knee Cap, Knee Cap Injury, Knee Discomfort, Knee Deformity
Interventions
Variable Angle LCP Patella Plating System, Traditional Fixation
Device
Lead sponsor
Hartford Hospital
Other
Eligibility
18 Years to 74 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 20, 2023 · Synced May 21, 2026, 10:09 PM EDT
Enrolling by invitation Not applicable Interventional
View directory record Official record
Conditions
Anterior Cruciate Ligament Injuries
Interventions
Focused Shockwave, Sham Focused Shockwave
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced May 21, 2026, 10:09 PM EDT
Terminated Phase 2 Interventional
View directory record Official record
Conditions
Patellar Tendinopathy
Interventions
Platelet Rich Plasma (PRP), Saline + exercise
Biological · Other
Lead sponsor
University of British Columbia
Other
Eligibility
18 Years to 50 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
2
States / cities
Vail, Colorado • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 20, 2018 · Synced May 21, 2026, 10:09 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Tendinopathy
Interventions
Isometric Exercise, Sham Transcutaneous Electrical Nerve Stimulation
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
15 Years to 28 Years · Male only
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 18, 2019 · Synced May 21, 2026, 10:09 PM EDT
Withdrawn Phase 2 Interventional
View directory record Official record
Conditions
Tendinopathy
Interventions
Somatropin, Bacteriostatic saline, Progressive exercise program, Patellar tendon biopsy
Drug · Other · Procedure
Lead sponsor
Hospital for Special Surgery, New York
Other
Eligibility
18 Years to 50 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 30, 2022 · Synced May 21, 2026, 10:09 PM EDT
Terminated Phase 4 Interventional
View directory record Official record
Conditions
Acute Patella Tendon Rupture
Interventions
Repair with transpatellar tunnels, Repair with suture anchors.
Procedure
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 18, 2013 · Synced May 21, 2026, 10:09 PM EDT