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ClinicalTrials.gov public records Last synced Oct 8, 2026, 2:56 PM EDT

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Showing 1–24 of 68 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Severe Osteoarthritis of the Knee Clear all
Withdrawn Phase 4 Interventional

An Open-label Evaluation of Tapentadol Extended Release (ER) in Participants With Moderate to Severe Chronic Pain After Conversion From Hydrocodone, Oxycodone Controlled Release (CR), and/or Morphine Sustained Release (SR)

NCT01631513
View directory record Official record
Conditions
Pain, Chronic Back Pain, Chronic Low Back Pain, Osteoarthritis Pain In The Hip or Knee
Interventions
Nucynta ER
Drug
Lead sponsor
Janssen Scientific Affairs, LLC
Industry
Eligibility
18 Years to 74 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
7
States / cities
Jacksonville, Florida • Prairie Village, Kansas • Mandeville, Louisiana + 4 more
Source: ClinicalTrials.gov public record
Updated Jan 25, 2018 · Synced Oct 8, 2026, 2:56 PM EDT
Completed Not applicable Interventional

Study of Flavocoxid (Limbrel) vs Naproxen in Subjects With Mod-Severe Osteoarthritis of the Knee

NCT00435292
View directory record Official record
Conditions
Osteoarthritis
Interventions
Naproxen, flavocoxid 250 mg, flavocoxid 500 mg
Drug · Dietary Supplement
Lead sponsor
Primus Pharmaceuticals
Industry
Eligibility
35 Years to 85 Years
Enrollment
350 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Scottsdale, Arizona
Source: ClinicalTrials.gov public record
Updated Oct 21, 2015 · Synced Oct 8, 2026, 2:56 PM EDT
Recruiting Phase 2 Interventional

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

NCT06485843
View directory record Official record
Conditions
Osteoarthritis, Osteo Arthritis Knee
Interventions
OA-SYS
Drug
Lead sponsor
Ageless Biotech, Inc.
Industry
Eligibility
35 Years to 75 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Sep 18, 2025 · Synced Oct 8, 2026, 2:56 PM EDT
Completed Phase 2 Interventional Results available

A Study to Assess the Safety and Efficacy of a Single Dose of UBX0101 in Patients With Osteoarthritis of the Knee

NCT04129944
View directory record Official record
Conditions
Osteoarthritis, Knee
Interventions
UBX0101, Placebo
Drug · Other
Lead sponsor
Unity Biotechnology, Inc.
Industry
Eligibility
40 Years to 85 Years
Enrollment
183 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
20
States / cities
Birmingham, Alabama • Mobile, Alabama • Tempe, Arizona + 17 more
Source: ClinicalTrials.gov public record
Updated Dec 29, 2021 · Synced Oct 8, 2026, 2:56 PM EDT
Completed Phase 2 Interventional

A Phase II Study Looking at Moderate to Severe Osteoarthritis Knee Pain

NCT00394563
View directory record Official record
Conditions
Osteoarthritis
Interventions
RN624 (PF-04383119), placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
40 Years to 75 Years
Enrollment
450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
48
States / cities
Birmingham, Alabama • Phoenix, Arizona • Tucson, Arizona + 42 more
Source: ClinicalTrials.gov public record
Updated Oct 12, 2009 · Synced Oct 8, 2026, 2:56 PM EDT
Completed Phase 2 Interventional Results available

A Study to Evaluate the Analgesic Efficacy and Safety of V120083 in Subjects With Osteoarthritis (OA) of the Knee

NCT03028870
View directory record Official record
Conditions
Osteo Arthritis Knee
Interventions
V120083, Naproxen, Placebo
Drug
Lead sponsor
Purdue Pharma LP
Industry
Eligibility
40 Years to 80 Years
Enrollment
291 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
30
States / cities
Birmingham, Alabama • Tuscumbia, Alabama • North Hollywood, California + 24 more
Source: ClinicalTrials.gov public record
Updated Feb 12, 2019 · Synced Oct 8, 2026, 2:56 PM EDT
Completed Phase 2 Interventional

Safety and Efficacy Study of GRT6005 in Patients With Osteoarthritis (OA) Knee Pain

NCT01709214
View directory record Official record
Conditions
Moderate to Severe Chronic Pain Due to Osteoarthritis of the Knee
Interventions
Cebranopadol (GRT6005) Low-Dose Range, Cebranopadol (GRT6005) High-Dose Range, Placebo, Oxycodone CR
Drug
Lead sponsor
Tris Pharma, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
619 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
83
States / cities
Birmingham, Alabama • Huntsville, Alabama • Phoenix, Arizona + 74 more
Source: ClinicalTrials.gov public record
Updated Jul 15, 2021 · Synced Oct 8, 2026, 2:56 PM EDT
Completed Phase 3 Interventional Results available

Open-label Trial to Check the Safety and Tolerability of RTX-GRT7039 Injections for Pain Associated With Osteoarthritis of the Knee

NCT05377489
View directory record Official record
Conditions
Osteoarthritis
Interventions
RTX-GRT7039
Drug
Lead sponsor
Grünenthal GmbH
Industry
Eligibility
18 Years and older
Enrollment
714 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
27
States / cities
Glendale, Arizona • Phoenix, Arizona • Anaheim, California + 24 more
Source: ClinicalTrials.gov public record
Updated Mar 12, 2026 · Synced Oct 8, 2026, 2:56 PM EDT
Completed Phase 1 Interventional

A Safety and Tolerability Study of UBX0101 in Patients With Osteoarthritis of the Knee

NCT03513016
View directory record Official record
Conditions
Osteoarthritis, Knee
Interventions
UBX0101, Placebo
Drug · Other
Lead sponsor
Unity Biotechnology, Inc.
Industry
Eligibility
40 Years to 85 Years
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
7
States / cities
El Cajon, California • La Mesa, California • Miami, Florida + 4 more
Source: ClinicalTrials.gov public record
Updated Apr 20, 2020 · Synced Oct 8, 2026, 2:56 PM EDT
Completed Not applicable Interventional

An Exploratory Clinical Study to Investigate Biomarkers of Senescence in Patients With Osteoarthritis of the Knee

NCT03100799
View directory record Official record
Conditions
Osteoarthritis, Knee
Interventions
Arthroscopy, Arthrocentesis, MRI
Procedure · Diagnostic Test
Lead sponsor
Unity Biotechnology, Inc.
Industry
Eligibility
35 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Frederick, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 1, 2017 · Synced Oct 8, 2026, 2:56 PM EDT
Completed Phase 3 Interventional Results available

Patient-Reported and Radiographic Outcomes in Evaluating Lorecivivint (SM04690) for the Treatment of Knee Osteoarthritis

NCT03928184
View directory record Official record
Conditions
Knee Osteoarthritis
Interventions
Lorecivivint, Placebo
Drug
Lead sponsor
Biosplice Therapeutics, Inc.
Industry
Eligibility
40 Years to 80 Years
Enrollment
501 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
99
States / cities
Birmingham, Alabama • Peoria, Arizona • Phoenix, Arizona + 85 more
Source: ClinicalTrials.gov public record
Updated Feb 13, 2026 · Synced Oct 8, 2026, 2:56 PM EDT
Completed Not applicable Interventional

Study of Flavocoxid (Limbrel) Versus Naproxen in Subjects With Moderate-Severe Osteoarthritis of the Knee

NCT00928837
View directory record Official record
Conditions
Osteoarthritis
Interventions
Flavocoxid 500 mg, Naproxen, Placebo, flavocoxid 250 mg
Dietary Supplement · Drug · Other
Lead sponsor
Primus Pharmaceuticals
Industry
Eligibility
35 Years to 85 Years
Enrollment
350 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Duncansville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 13, 2017 · Synced Oct 8, 2026, 2:56 PM EDT
Completed Phase 2 Interventional Results available

A Phase 2 Study To Assess The Efficacy, Tolerability, And Safety OF NKTR-181 In Subjects With Chronic OA Knee Pain

NCT01619839
View directory record Official record
Conditions
Osteoarthritis of the Knee
Interventions
NKTR-181, Placebo
Drug
Lead sponsor
Nektar Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
296 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
34
States / cities
Mobile, Alabama • Tucson, Arizona • Garden Grove, California + 29 more
Source: ClinicalTrials.gov public record
Updated Aug 2, 2021 · Synced Oct 8, 2026, 2:56 PM EDT
Completed No phase listed Observational

An Observational Study Evaluating the Safety, Tolerability, and Efficacy of Treatment of SM04690 or Placebo Previously Injected in the Target Knee Joint of Subjects With Moderately to Severely Symptomatic Osteoarthritis

NCT02951026
View directory record Official record
Conditions
Osteoarthritis
Interventions
Not applicable (no therapy is administered as part of this study)
Other
Lead sponsor
Biosplice Therapeutics, Inc.
Industry
Eligibility
40 Years to 80 Years
Enrollment
703 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
62
States / cities
Birmingham, Alabama • Oro Valley, Arizona • Phoenix, Arizona + 59 more
Source: ClinicalTrials.gov public record
Updated Apr 17, 2020 · Synced Oct 8, 2026, 2:56 PM EDT
Completed No phase listed Observational Results available

A Biologic Joint Replacement Strategy to Treat Patients With Severe Knee Trauma and Post-Traumatic Knee Osteoarthritis

NCT03257371
View directory record Official record
Conditions
Post-traumatic Osteoarthritis
Interventions
Not listed
Lead sponsor
James Stannard
Other
Eligibility
18 Years to 50 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 26, 2021 · Synced Oct 8, 2026, 2:56 PM EDT
Completed Phase 1Phase 2 Interventional

A Phase 1/2a to Evaluate the Safety and Efficacy of Adipose Tissue Allograft (BRC-OA) in Patients With Osteoarthritis of the Knee

NCT06828666
View directory record Official record
Conditions
Osteoarthritis of Knee
Interventions
Cryopreserved Devitalized Adipose Tissue Allograft, Normal Saline (Placebo)
Biological · Other
Lead sponsor
Britecyte
Network
Eligibility
18 Years to 80 Years
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
7
States / cities
Baltimore, Maryland • Hagerstown, Maryland • Oxon Hill, Maryland + 4 more
Source: ClinicalTrials.gov public record
Updated Sep 8, 2026 · Synced Oct 8, 2026, 2:56 PM EDT
Terminated Phase 2 Interventional

A Dose-ranging Study of the Safety and Effectiveness of JNJ-42160443 as add-on Treatment in Patients With Osteoarthritis-related Pain

NCT00973141
View directory record Official record
Conditions
Osteoarthritis, Osteoarthritis, Hip, Osteoarthritis, Knee, Pain, Arthralgia, Joint Pain
Interventions
JNJ-42160443, Placebo
Drug
Lead sponsor
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Industry
Eligibility
40 Years to 80 Years
Enrollment
467 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
52
States / cities
Birmingham, Alabama • Phoenix, Arizona • Tucson, Arizona + 49 more
Source: ClinicalTrials.gov public record
Updated Mar 11, 2020 · Synced Oct 8, 2026, 2:56 PM EDT
Completed Phase 2 Interventional

Safety and Tolerability of 4975 in the Treatment of Moderate to Severe Knee Pain Due to Osteoarthritis (OA)

NCT00667654
View directory record Official record
Conditions
Osteoarthritis of the Knee
Interventions
CNTX-4975
Drug
Lead sponsor
Centrexion Therapeutics
Industry
Eligibility
40 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2016
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 6, 2016 · Synced Oct 8, 2026, 2:56 PM EDT
Terminated Phase 2 Interventional

A Safety and Tolerability Study of JNJ-42160443 in Patients With Moderate to Severe, Chronic Knee Pain From Osteoarthritis

NCT01094262
View directory record Official record
Conditions
Osteoarthritis, Osteoarthritis, Knee, Pain, Arthralgia, Joint Pain
Interventions
Oxycodone CR (standard pain medication), JNJ-42160443, Placebo
Drug
Lead sponsor
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Industry
Eligibility
40 Years to 80 Years
Enrollment
196 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
36
States / cities
Tucson, Arizona • Carmichael, California • Pismo Beach, California + 33 more
Source: ClinicalTrials.gov public record
Updated Mar 11, 2020 · Synced Oct 8, 2026, 2:56 PM EDT
Completed Phase 3 Interventional Results available

A Clinical Study to Test Efficacy and Safety of Repeat Doses of CNTX-4975-05 in Patients With Osteoarthritis Knee Pain

NCT03660943
View directory record Official record
Conditions
Osteoarthritis, Knee
Interventions
Placebo, CNTX-4975-05
Drug
Lead sponsor
Centrexion Therapeutics
Industry
Eligibility
40 Years to 95 Years
Enrollment
332 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
30
States / cities
Glendale, Arizona • Phoenix, Arizona • Carmichael, California + 23 more
Source: ClinicalTrials.gov public record
Updated Jul 21, 2022 · Synced Oct 8, 2026, 2:56 PM EDT
Completed Phase 2 Interventional

Study of OLT1177 Gel to Treat Moderate to Severe OA Knee Pain

NCT02104050
View directory record Official record
Conditions
Osteoarthritis, Pain
Interventions
Placebo Gel, OLT1177 Gel
Drug
Lead sponsor
Olatec Therapeutics, Inc.
Industry
Eligibility
45 Years to 80 Years
Enrollment
202 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
13
States / cities
Birmingham, Alabama • Milford, Connecticut • DeLand, Florida + 10 more
Source: ClinicalTrials.gov public record
Updated Oct 6, 2017 · Synced Oct 8, 2026, 2:56 PM EDT
Terminated Phase 3 Interventional Results available

Study of Ampion for the Treatment of Pain and Function in Patients With Severe Osteoarthritis of the Knee.

NCT03988023
View directory record Official record
Conditions
Severe Osteoarthritis of the Knee
Interventions
Ampion, Saline
Biological · Drug
Lead sponsor
Ampio Pharmaceuticals. Inc.
Industry
Eligibility
40 Years to 85 Years
Enrollment
1,043 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Englewood, Colorado
Source: ClinicalTrials.gov public record
Updated Oct 5, 2022 · Synced Oct 8, 2026, 2:56 PM EDT
Active, not recruiting Phase 2 Interventional

53-Week Study Evaluating the Safety and Efficacy of Intra-articular Injections of TPX-100 With Mild to Severe Tibio-Femoral Osteoarthritis of the Knee

NCT06865079
View directory record Official record
Conditions
Osteoarthritis (OA) of the Knee
Interventions
TPX-100 200mg, Once weekly for 4 weeks, PBS
Drug · Other
Lead sponsor
OrthoTrophix, Inc
Industry
Eligibility
50 Years to 80 Years
Enrollment
270 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
33
States / cities
Scottsdale, Arizona • Tucson, Arizona • Carrolton, California + 26 more
Source: ClinicalTrials.gov public record
Updated Feb 17, 2026 · Synced Oct 8, 2026, 2:56 PM EDT
Completed Phase 3 Interventional Results available

Trial to See if Topical Pennsaid for Knee Pain Affects Coagulation Values in Patients Who Are Also Taking Anticoagulants

NCT01511939
View directory record Official record
Conditions
Osteoarthritis of the Knee, Coagulopathy
Interventions
Pennsaid
Drug
Lead sponsor
Nathan Wei, MD, FACP, FACR:
Other
Eligibility
55 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Frederick, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 26, 2014 · Synced Oct 8, 2026, 2:56 PM EDT