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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: oral naproxen Clear all
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 Sep 16, 2026 · Synced Sep 27, 2026, 9:30 AM 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 27, 2026, 9:30 AM EDT
Completed Phase 2 Interventional Results available

Study to Find Out the Optimal Dose of Caffeine in the Combination Tablet of Naproxen Sodium and Caffeine in Patients Experiencing Moderate to Severe Pain After Having Wisdom Teeth Removed

NCT04132336
View directory record Official record
Conditions
Pain, Postoperative
Interventions
Naproxen sodium/Caffeine (BAY2880376), Naproxen sodium (Aleve), Caffeine, Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
16 Years and older
Enrollment
193 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Aug 31, 2021 · Synced Sep 27, 2026, 9:30 AM EDT
Completed Phase 3 Interventional

Dental Pain (Following Third Molar Tooth Extraction) Study

NCT00114049
View directory record Official record
Conditions
Dental Pain, Surgery, Dental
Interventions
GW406381
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jan 18, 2017 · Synced Sep 27, 2026, 9:30 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Actual Use Trial of Naproxen Sodium

NCT01427803
View directory record Official record
Conditions
Pain
Interventions
Naproxen Sodium ER (BAYH6689)
Drug
Lead sponsor
Bayer
Industry
Eligibility
12 Years and older
Enrollment
778 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
34
States / cities
Hoover, Alabama • McCalla, Alabama • Pinson, Alabama + 29 more
Source: ClinicalTrials.gov public record
Updated Oct 14, 2015 · Synced Sep 27, 2026, 9:30 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Study to Investigate the Analgesic Efficacy of a Single Dose of AZD1940

NCT00659490
View directory record Official record
Conditions
Pain
Interventions
AZD1940, Naproxen, Placebo
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 45 Years
Enrollment
151 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jun 10, 2012 · Synced Sep 27, 2026, 9:30 AM EDT
Terminated Phase 3 Interventional Results available

Evaluating PN 400 (VIMOVO) in Reducing Gastric Ulcers in High Risk Subjects Compared to Arthrotec

NCT00594854
View directory record Official record
Conditions
Gastric Ulcer
Interventions
PN400 (VIMOVO), Diclofenac/Misoprostol
Drug
Lead sponsor
POZEN
Industry
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 21, 2010 · Synced Sep 27, 2026, 9:30 AM EDT
Completed Phase 3 Interventional

A Study of an Acetaminophen/Naproxen Sodium Fixed Combination, Acetaminophen and Naproxen Sodium in Postoperative Dental Pain

NCT05761574
View directory record Official record
Conditions
Pain
Interventions
Acetaminophen/Naproxen Sodium Fixed Combination, Naproxen Sodium, Acetaminophen, Placebo
Drug
Lead sponsor
Johnson & Johnson Consumer Inc. (J&JCI)
Industry
Eligibility
16 Years to 50 Years
Enrollment
447 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jul 1, 2025 · Synced Sep 27, 2026, 9:30 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

An Open-Label, Randomized, Comparative 3-Way Cross-Over Study to Evaluate the Effect of Food on the 24-Hour Intragastric pH at Day 5 After Twice Daily Oral Administration of PN 200 (Omeprazole/Naproxen) in Healthy Volunteers

NCT00442208
View directory record Official record
Conditions
Healthy
Interventions
PN 200
Drug
Lead sponsor
POZEN
Industry
Eligibility
18 Years to 55 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 21, 2008 · Synced Sep 27, 2026, 9:30 AM EDT
Completed Phase 4 Interventional Results available

A Safety Study of VIMOVO in Adolescents With Juvenile Idiopathic Arthritis (JIA)

NCT01544114
View directory record Official record
Conditions
Juvenile Idiopathic Arthritis (JIA)
Interventions
VIMOVO 250/20, VIMOVO 375/20, VIMOVO 500/20
Drug
Lead sponsor
Amgen
Industry
Eligibility
12 Years to 16 Years
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
17
States / cities
Little Rock, Arkansas • San Francisco, California • Aurora, Colorado + 14 more
Source: ClinicalTrials.gov public record
Updated Dec 16, 2024 · Synced Sep 27, 2026, 9:30 AM 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 27, 2026, 9:30 AM EDT
Completed Phase 4 Interventional Results available

OTC Naproxen and Acetaminophen Anti-Inflammatory Action in Dental Implant Patients

NCT04694300
View directory record Official record
Conditions
Osseointegrated Dental Implantation, Pain, Acute
Interventions
Naproxen, Acetaminophen, Tramadol
Drug
Lead sponsor
Hersh, Elliot V., DMD, MS, PhD
Individual
Eligibility
18 Years to 75 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 15, 2024 · Synced Sep 27, 2026, 9:30 AM EDT
Completed Phase 4 Interventional Results available

Effect of L-dopa In Subacute Back Pain Population

NCT01951105
View directory record Official record
Conditions
Sub-acute Back Pain
Interventions
Naproxen, Carbidopa/Levodopa, Placebo
Drug
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 23, 2021 · Synced Sep 27, 2026, 9:30 AM EDT
Completed Phase 4 Interventional

Safety and Efficacy of Celecoxib Versus Naproxen in the 6-month Treatment of Knee Osteoarthritis

NCT00643799
View directory record Official record
Conditions
Osteoarthritis, Knee
Interventions
Celecoxib, Naproxen, Placebo
Drug
Lead sponsor
Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Industry
Eligibility
40 Years and older
Enrollment
586 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
51
States / cities
Montgomery, Alabama • Phoenix, Arizona • Tempe, Arizona + 41 more
Source: ClinicalTrials.gov public record
Updated Feb 1, 2021 · Synced Sep 27, 2026, 9:30 AM EDT
Recruiting Phase 4 Interventional

NSAID Use for Treating Dysmenorrhea and Preventing Chronic Pelvic Pain (NSAID HEAL)

NCT06861920
View directory record Official record
Conditions
Dysmenorrhea, Chronic Pelvic Pain, Pelvic Pain
Interventions
Naproxen Sodium 550mg, Placebo, Extended Release Acetaminophen (650 mg)
Drug
Lead sponsor
Endeavor Health
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
1
States / cities
Evanston, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 6, 2025 · Synced Sep 27, 2026, 9:30 AM EDT
Completed Phase 4 Interventional

Safety and Efficacy of Celecoxib Versus Placebo in the Treatment of Knee Osteoarthritis in Patients Who Were Unresponsive to Naproxen and Ibuprofen

NCT00638807
View directory record Official record
Conditions
Osteoarthritis, Knee
Interventions
Celecoxib, Placebo
Drug · Other
Lead sponsor
Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Industry
Eligibility
40 Years and older
Enrollment
388 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2004
U.S. locations
33
States / cities
Birmingham, Alabama • Buena Park, California • Denver, Colorado + 28 more
Source: ClinicalTrials.gov public record
Updated Feb 1, 2021 · Synced Sep 27, 2026, 9:30 AM EDT
Recruiting Phase 4 Interventional

Duloxetine for LBP

NCT05851976
View directory record Official record
Conditions
Back Pain, Low
Interventions
Naproxen, Duloxetine
Drug
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years to 64 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Sep 27, 2026, 9:30 AM EDT
Terminated Phase 4 Interventional Results available

Treximet for Prevention of Post Traumatic Headache Associated With Cognitive Dysfunction

NCT01053507
View directory record Official record
Conditions
Post-Traumatic Headache
Interventions
sumatriptan/naproxen sodium, Placebo
Drug
Lead sponsor
Cady, Roger, M.D.
Individual
Eligibility
18 Years to 65 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
3
States / cities
Springfield, Missouri • Nashville, Tennessee • Temple, Texas
Source: ClinicalTrials.gov public record
Updated Jul 28, 2020 · Synced Sep 27, 2026, 9:30 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers Results available

Variability in Response to Non-steroidal Anti-inflammatory Drugs

NCT02502006
View directory record Official record
Conditions
Healthy
Interventions
Celecoxib, Naproxen, Placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 12, 2023 · Synced Sep 27, 2026, 9:30 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Pharmacokinetic (PK) Study Evaluating Naproxen and Esomeprazole Plasma Levels

NCT00749385
View directory record Official record
Conditions
Arthritis
Interventions
PN 400, EC naproxen plus EC esomeprazole, EC naproxen, EC esomeprazole
Drug
Lead sponsor
POZEN
Industry
Eligibility
18 Years to 55 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Dec 22, 2008 · Synced Sep 27, 2026, 9:30 AM EDT
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 27, 2026, 9:30 AM EDT
Completed Not applicable Interventional

Accessible Acupuncture for the Warrior With Acute Low Back Pain

NCT04236908
View directory record Official record
Conditions
Acupuncture, Low Back Pain
Interventions
NSAIDS, Battlefield Acupuncture, GV26 with manual tonification
Drug · Device
Lead sponsor
David Moss
Federal
Eligibility
18 Years and older
Enrollment
276 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Nellis Air Force Base, Nevada
Source: ClinicalTrials.gov public record
Updated Dec 15, 2025 · Synced Sep 27, 2026, 9:30 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Ibuprofen Inhibits Human Sweet Taste

NCT06291337
View directory record Official record
Conditions
Treatment of Sweet Taste Receptors Without or With an Oral Rinse of Ibuprofen Solution in Healthy Participants, Treatment of Sweet Taste Receptors Without or With an Oral Rinse of Naproxen Solution in Healthy Participants
Interventions
Inhibition of Sweet Taste by Ibuprofen Oral Rinses, Inhibition of Sweet Taste by Naproxen Oral Rinses
Drug
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 70 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Mar 3, 2024 · Synced Sep 27, 2026, 9:30 AM EDT
Completed Phase 3 Interventional Results available

Evaluating PN 400 (VIMOVO) in Reducing Gastric Ulcers Compared to Non-steroidal Antiinflammatory Drug (NSAID) Naproxen

NCT00527787
View directory record Official record
Conditions
Gastric Ulcer
Interventions
PN400 (VIMOVO), Naproxen
Drug
Lead sponsor
POZEN
Industry
Eligibility
18 Years and older
Enrollment
434 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 27, 2010 · Synced Sep 27, 2026, 9:30 AM EDT