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Showing 1–24 of 69 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Naproxen 500 Mg Clear all
Terminated Phase 2 Interventional Results available

A Study Of The Safety And Efficacy Of PF-04191834 In Patients With Osteoarthritis Of The Knee

NCT01147458
View directory record Official record
Conditions
Osteoarthritis, Knee
Interventions
PF-04191834, PF-04191834 placebo, Naproxen placebo, Naproxen
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 75 Years
Enrollment
190 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
25
States / cities
Peoria, Arizona • Phoenix, Arizona • Anaheim, California + 20 more
Source: ClinicalTrials.gov public record
Updated Jun 5, 2013 · Synced Sep 13, 2026, 12:53 PM EDT
Completed Phase 4 Interventional Results available

Are Opioids Needed After ACL Reconstruction

NCT04285853
View directory record Official record
Conditions
Anterior Cruciate Ligament Rupture
Interventions
Oxycodone, Placebo oral tablet
Drug
Lead sponsor
Emory University
Other
Eligibility
14 Years to 40 Years
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
3
States / cities
Atlanta, Georgia • Tucker, Georgia
Source: ClinicalTrials.gov public record
Updated Oct 10, 2023 · Synced Sep 13, 2026, 12:53 PM EDT
Completed Phase 4 Interventional Results available

Anterior Cruciate Ligament Pain Study

NCT02604550
View directory record Official record
Conditions
Anterior Cruciate Ligament Reconstruction
Interventions
Ropivacaine 0.5%, Percocet 7.5/325, Naprosyn 500 mg
Drug
Lead sponsor
Emory University
Other
Eligibility
Not listed
Enrollment
115 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated May 30, 2017 · Synced Sep 13, 2026, 12:53 PM EDT
Terminated Phase 2 Interventional Results available

Individualizing Anti-Inflammatory Medications for Adults With Axial Spondyloarthritis: A Series of N-of 1 Trials

NCT04115098
View directory record Official record
Conditions
Axial Spondyloarthritis
Interventions
Celecoxib, Naproxen, Meloxicam
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 12, 2025 · Synced Sep 13, 2026, 12:53 PM EDT
Completed Phase 4 Interventional Results available

A Study To Evaluate The Effects Of Celecoxib (Celebrex®) Or Naproxen On Blood Pressure In Pediatric Subjects

NCT00807846
View directory record Official record
Conditions
Arthritis, Juvenile Rheumatoid
Interventions
Celecoxib, Naproxen
Drug
Lead sponsor
Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Industry
Eligibility
2 Years to 17 Years
Enrollment
201 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
18
States / cities
Tucson, Arizona • Little Rock, Arkansas • San Diego, California + 9 more
Source: ClinicalTrials.gov public record
Updated Feb 1, 2021 · Synced Sep 13, 2026, 12:53 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Oral Bioequivalence Study of PL 3100 and Naproxen in Healthy Adults

NCT00966641
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Naproxen, PL 3100
Drug
Lead sponsor
PLx Pharma
Industry
Eligibility
18 Years to 75 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 6, 2015 · Synced Sep 13, 2026, 12:53 PM EDT
Recruiting No phase listed Observational

CHronic Nonbacterial Osteomyelitis International Registry

NCT04725422
View directory record Official record
Conditions
Chronic Nonbacterial Osteomyelitis, Chronic Recurrent Multifocal Osteomyelitis
Interventions
Methotrexate, Sulfasalazine, Leflunomide, Pamidronate, Zoledronic acid, Etanercept, Adalimumab, Certolizumab, Infliximab, Golimumab, NSAID
Drug
Lead sponsor
Seattle Children's Hospital
Other
Eligibility
Up to 21 Years
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2050
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 29, 2024 · Synced Sep 13, 2026, 12:53 PM EDT
Active, not recruiting Phase 4 Interventional

Study of Nonsteroidal Anti-inflammatory Drugs in People With Painful Knee Osteoarthritis

NCT05430230
View directory record Official record
Conditions
Osteoarthritis, Knee
Interventions
Naproxen 500 Mg, Placebo
Drug
Lead sponsor
Northwestern University
Other
Eligibility
40 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 22, 2026 · Synced Sep 13, 2026, 12:53 PM EDT
Completed Phase 3 Interventional

Study to Evaluate the Incidence of Gastric Ulcers Following Administration of Either PN 200 or Naproxen in Subjects Who Are at Risk for Developing NSAID-Associated Ulcers.

NCT00367211
View directory record Official record
Conditions
Osteoarthritis, Rheumatoid Arthritis, Ankylosing Spondylitis
Interventions
PN 200 tablets (500 mg naproxen and 20 mg omeprazole), Naproxen 500 mg tablets (PN 200 minus omeprazole)
Drug
Lead sponsor
POZEN
Industry
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Pompano Beach, Florida
Source: ClinicalTrials.gov public record
Updated Apr 21, 2008 · Synced Sep 13, 2026, 12:53 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 12, 2017 · Synced Sep 13, 2026, 12:53 PM EDT
Enrolling by invitation Phase 4 Interventional Accepts healthy volunteers

Reducing Opioid Use After Upper Extremity Surgery: Testing Lower Prescriptions and Pill Quantity

NCT07750639
View directory record Official record
Conditions
Opioid Abuse (Disorder), Opioid Analgesia, Opioid Analgesic Adverse Reaction, Opioid Consumption
Interventions
Naproxen, Acetaminophen, oxycodone, Gabapentin
Drug
Lead sponsor
AdventHealth
Other
Eligibility
18 Years and older
Enrollment
260 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Aug 5, 2026 · Synced Sep 13, 2026, 12:53 PM EDT
Completed Phase 1 Interventional

A Study to Assess the Effects of Naproxcinod and Naproxen on Blood Pressure Measurements in Osteoarthritis Patients With Controlled High Blood Pressure

NCT00662610
View directory record Official record
Conditions
Osteoarthritis, Hypertension
Interventions
naproxcinod 375 mg -750 mg -1125 mg bid, naproxen 250 mg - 500mg -750 mg bid
Drug
Lead sponsor
NicOx
Industry
Eligibility
40 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
29
States / cities
Mobile, Alabama • Tempe, Arizona • Tucson, Arizona + 26 more
Source: ClinicalTrials.gov public record
Updated Jun 16, 2011 · Synced Sep 13, 2026, 12:53 PM EDT
Completed Phase 3 Interventional Results available

Long Term Safety and Efficacy Study of Tanezumab in Subjects With Osteoarthritis of the Hip or Knee

NCT02528188
View directory record Official record
Conditions
Chronic Pain, Osteoarthritis, Hip, Osteoarthritis, Knee
Interventions
NSAID, Tanezumab 2.5 mg, Tanezumab 5 mg
Drug · Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
3,021 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
299
States / cities
Birmingham, Alabama • Huntsville, Alabama • Mobile, Alabama + 187 more
Source: ClinicalTrials.gov public record
Updated Jan 9, 2020 · Synced Sep 13, 2026, 12:53 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

The Effect of Naproxen on the Pharmacokinetic Profile of LC350189 in Healthy Adults

NCT04139824
View directory record Official record
Conditions
Gout, Hyperuricemia
Interventions
Xanthine Oxidase Inhibitor, nonsteroidal anti-inflammatory drug
Drug
Lead sponsor
LG Chem
Industry
Eligibility
18 Years to 50 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jun 25, 2020 · Synced Sep 13, 2026, 12:53 PM EDT
Completed Phase 4 Interventional Results available

Does Treximet Improve Productivity and Patient Satisfaction Due to Sustained Response and Consistency of Response?

NCT01086358
View directory record Official record
Conditions
Workplace Migraine Treatment
Interventions
Triptan, Treximet 85Mg-500Mg Tablet
Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2016
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 30, 2018 · Synced Sep 13, 2026, 12:53 PM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

Phenotyping Acute Pain for Discovery Research and Directed Therapeutics

NCT02322996
View directory record Official record
Conditions
Post op Pain
Interventions
questionnaires
Other
Lead sponsor
East Carolina University
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Greenville, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 22, 2018 · Synced Sep 13, 2026, 12:53 PM EDT
Completed Phase 4 Interventional

Efficacy and Safety of Valdecoxib and Naproxen in Treating the Signs and Symptoms of Rheumatoid Arthritis (RA) in a Severe Rheumatoid Arthritis Patients

NCT00650455
View directory record Official record
Conditions
Arthritis, Rheumatoid
Interventions
valdecoxib, naproxen, placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
489 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2005
U.S. locations
52
States / cities
Birmingham, Alabama • Huntsville, Alabama • Glendale, Arizona + 46 more
Source: ClinicalTrials.gov public record
Updated Jul 20, 2008 · Synced Sep 13, 2026, 12:53 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacokinetics Study Comparing Naproxen Sodium Extended Release and Naprelan

NCT00969449
View directory record Official record
Conditions
Pharmacokinetics
Interventions
Naproxen Sodium, (BAY H6689), Naprelan, (BAY H6689)
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 55 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated May 19, 2014 · Synced Sep 13, 2026, 12:53 PM EDT
Completed Phase 4 Interventional Results available

A Study to Assess Menstrual Cramp Pain Associated With Primary Dysmenorrhea

NCT03448536
View directory record Official record
Conditions
Dysmenorrhea
Interventions
Naproxen Sodium, (Aleve, BAY117031), Acetaminophen (Tylenol Extra Strength)
Drug
Lead sponsor
Bayer
Industry
Eligibility
15 Years to 35 Years · Female only
Enrollment
201 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
8
States / cities
Chandler, Arizona • Scottsdale, Arizona • Pinellas Park, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Oct 27, 2019 · Synced Sep 13, 2026, 12:53 PM EDT
Completed Phase 2 Interventional Results available

NOLAN: Naproxen or Loratadine and Neulasta

NCT01712009
View directory record Official record
Conditions
Bone Pain in Stage I - III Breast Cancer
Interventions
Naproxen, Loratadine, Pegfilgrastim, Chemotherapy
Drug · Biological
Lead sponsor
Amgen
Industry
Eligibility
18 Years to 100 Years · Female only
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
83
States / cities
Muscle Shoals, Alabama • Anaheim, California • Fullerton, California + 78 more
Source: ClinicalTrials.gov public record
Updated Jan 29, 2018 · Synced Sep 13, 2026, 12:53 PM EDT
Completed Phase 2 Interventional

Analgesic Efficacy and Safety of V116517 in Subjects With Moderate to Severe Chronic Pain Due to Osteoarthritis (OA) of the Knee

NCT01688934
View directory record Official record
Conditions
Osteoarthritis, Knee, Pain
Interventions
V116517 50-mg tablets, V116517 30-mg tablets, Naproxen 500-mg capsules, Placebo
Drug
Lead sponsor
Purdue Pharma LP
Industry
Eligibility
40 Years to 80 Years
Enrollment
230 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
18
States / cities
Tucson, Arizona • Boynton Beach, Florida • DeLand, Florida + 13 more
Source: ClinicalTrials.gov public record
Updated Dec 4, 2013 · Synced Sep 13, 2026, 12:53 PM EDT
Completed Phase 4 Interventional Results available

Medical Therapy Versus Radiofrequency Endometrial Ablation in the Initial Treatment of Menorrhagia

NCT01165307
View directory record Official record
Conditions
Menorrhagia
Interventions
Estradiol 30mcg / Levonorgestrel 150mcg monophasic oral contraceptive pills, Naproxen sodium pills, NovaSure® Radiofrequency Endometrial Ablation
Drug · Device
Lead sponsor
Abimbola Famuyide
Other
Eligibility
30 Years to 55 Years · Female only
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 19, 2017 · Synced Sep 13, 2026, 12:53 PM EDT
Completed Phase 4 Interventional Results available

Prospective Randomized Evaluation Of Celecoxib Integrated Safety Vs Ibuprofen Or Naproxen

NCT00346216
View directory record Official record
Conditions
Arthritis, Rheumatoid
Interventions
celecoxib, Ibuprofen, Naproxen
Drug
Lead sponsor
Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Industry
Eligibility
18 Years and older
Enrollment
24,081 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2016
U.S. locations
871
States / cities
Alabaster, Alabama • Bessemer, Alabama • Birmingham, Alabama + 515 more
Source: ClinicalTrials.gov public record
Updated Mar 2, 2021 · Synced Sep 13, 2026, 12:53 PM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers

Naproxen for the Prevention of HO After Complex Elbow Trauma

NCT00586365
View directory record Official record
Conditions
Heterotopic Ossification
Interventions
Naproxen
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 20, 2012 · Synced Sep 13, 2026, 12:53 PM EDT