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Showing 1–24 of 115 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Naproxen placebo Clear all
Completed Phase 2 Interventional Results available

Naproxen Sodium/Acetaminophen Proof of Concept Dosing Study

NCT03879408
View directory record Official record
Conditions
Pain
Interventions
440 mg naproxen sodium with 1000 mg acetaminophen, 220 mg naproxen sodium with 650 mg acetaminophen, 10 mg hydrocodone + 650 mg acetaminophen, 440 mg naproxen sodium, Placebo tablet
Drug
Lead sponsor
Johnson & Johnson Consumer Inc., McNeil Consumer Healthcare Division
Industry
Eligibility
17 Years to 50 Years
Enrollment
290 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Dec 4, 2022 · Synced Sep 8, 2026, 10:09 PM EDT
Completed Phase 3 Interventional Results available

Evaluate Analgesic/Sedative Efficacy of Naproxen Sodium and Diphenhydramine in Patients With Postsurgical Dental Pain

NCT01280591
View directory record Official record
Conditions
Pain, Postoperative
Interventions
Naproxen sodium 440 mg / DPH 50 mg (BAY98-7111), Naproxen sodium 220 mg / DPH 50 mg (BAY98-7111), Naproxen sodium 440 mg (BAYH6689), DPH 50 mg
Drug
Lead sponsor
Bayer
Industry
Eligibility
12 Years to 45 Years
Enrollment
712 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
2
States / cities
Austin, Texas • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jun 7, 2015 · Synced Sep 8, 2026, 10:09 PM EDT
Completed Phase 3 Interventional

Treximet (Sumatriptan/Naproxen Sodium), Formerly Known as Trexima, In The Acute Treatment Of Multiple Migraine Attacks

NCT00240630
View directory record Official record
Conditions
Migraine Disorders, Migraine
Interventions
sumatriptan succinate/naproxen sodium, placebo
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 65 Years
Enrollment
646 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
50
States / cities
Chandler, Arizona • Phoenix, Arizona • Little Rock, Arkansas + 45 more
Source: ClinicalTrials.gov public record
Updated Apr 15, 2015 · Synced Sep 8, 2026, 10:09 PM EDT
Completed Phase 3 Interventional

Efficacy and Safety Study of Naproxcinod in Subjects With Osteoarthritis of the Knee

NCT00504127
View directory record Official record
Conditions
Osteoarthritis
Interventions
Naproxcinod 375 mg bid, Naproxcinod 750 mg bid, Naproxen 500 mg bid, placebo
Drug
Lead sponsor
NicOx
Industry
Eligibility
40 Years and older
Enrollment
1,020 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2007
U.S. locations
73
States / cities
Chandler, Arizona • Tempe, Arizona • Tucson, Arizona + 70 more
Source: ClinicalTrials.gov public record
Updated Jun 16, 2011 · Synced Sep 8, 2026, 10:09 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Non-Steroidal Anti-Inflammatory Drug (NSAID) Response and Central Sensitization of Pain in Women With Dysmenorrhea

NCT05900336
View directory record Official record
Conditions
Dysmenorrhea, Menstrual Pain, Non-steroidal Anti-inflammatory Drug
Interventions
Sodium Naproxen, Placebo
Drug
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 12, 2026 · Synced Sep 8, 2026, 10:09 PM EDT
Completed Phase 3 Interventional

Efficacy and Safety Study of Naproxcinod in Subjects With Osteoarthritis of the Hip

NCT00541489
View directory record Official record
Conditions
Osteoarthritis, Osteoarthritis, Hip
Interventions
Naproxcinod, Naproxen, Placebo
Drug
Lead sponsor
NicOx
Industry
Eligibility
40 Years and older
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2007
U.S. locations
36
States / cities
Mobile, Alabama • Montgomery, Alabama • Tuscaloosa, Alabama + 33 more
Source: ClinicalTrials.gov public record
Updated Feb 19, 2009 · Synced Sep 8, 2026, 10:09 PM EDT
Completed Phase 3 Interventional Results available

A Study of Combination Product (Sumatriptan Succinate and Naproxen Sodium) in Migraine Subjects Who Report Poor Response or Intolerance to Short Acting Triptans (Study 1 of 2)

NCT00383162
View directory record Official record
Conditions
Migraine Disorders
Interventions
Combination Product (sumatriptan succinate / naproxen sodium), Placebo
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 65 Years
Enrollment
173 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
26
States / cities
Fresno, California • Newport Beach, California • Santa Monica, California + 23 more
Source: ClinicalTrials.gov public record
Updated Feb 1, 2017 · Synced Sep 8, 2026, 10:09 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Learn How Well a Single Dose of the Study Treatment Naproxen Sodium and Caffeine Combined in One Tablet (Fixed-dose Combination) Works to Relieve Pain After Dental Surgeries Compared to the Single Ingredients and to Placebo

NCT05485805
View directory record Official record
Conditions
Postoperative Dental Pain
Interventions
Naproxen sodium and caffeine (BAY2880376), Naproxen sodium (Aleve), Caffeine, Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
16 Years and older
Enrollment
541 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Mar 24, 2025 · Synced Sep 8, 2026, 10:09 PM EDT
Completed Phase 2 Interventional Results available

RN624 In Adult Patients With Chronic Low Back Pain

NCT00584870
View directory record Official record
Conditions
Low Back Pain
Interventions
Naproxen, Placebo, PF-04383119 (RN624)
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 90 Years
Enrollment
220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
38
States / cities
Anniston, Alabama • Birmingham, Alabama • Chandler, Arizona + 30 more
Source: ClinicalTrials.gov public record
Updated Jul 11, 2021 · Synced Sep 8, 2026, 10:09 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Effect of Naproxen, Aspirin, Celecoxib, or Clopidogrel on the Healing of Stomach and Intestinal Ulcers

NCT00778193
View directory record Official record
Conditions
Gastroduodenal Ulcer
Interventions
Naproxen, Aspirin, Celecoxib, Clopidogrel, Placebo
Drug
Lead sponsor
Research Associates of New York, LLP
Other
Eligibility
18 Years to 75 Years
Enrollment
125 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 22, 2008 · Synced Sep 8, 2026, 10:09 PM EDT
Completed Phase 2 Interventional Results available

To Determine the Safety, Tolerability, Pharmacokinetics and Effect on Pain of a Single Intra-articular Administration of Canakinumab in Patients With Osteoarthritis in the Knee

NCT01160822
View directory record Official record
Conditions
Osteoarthritis
Interventions
Canakinumab, Placebo to canakinumab, Naproxen, Placebo to Naproxen
Biological · Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
40 Years to 80 Years
Enrollment
169 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
8
States / cities
Anniston, Alabama • Mesa, Arizona • San Diego, California + 5 more
Source: ClinicalTrials.gov public record
Updated Oct 29, 2012 · Synced Sep 8, 2026, 10:09 PM EDT
Completed Phase 3 Interventional Results available

Protocol to Monitor the Neurological Development of Infants With Exposure in Utero From Birth to 15 Months in Tanezumab Clinical Studies

NCT03031938
View directory record Official record
Conditions
Osteoarthritis, Cancer Pain, Recurrent Low Back Pain
Interventions
Investigational medical product (IMP) administered in parent study
Drug
Lead sponsor
Pfizer
Industry
Eligibility
0 Years to 2 Months
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
6
States / cities
Los Angeles, California • Sarasota, Florida • Tampa, Florida + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2021 · Synced Sep 8, 2026, 10:09 PM EDT
Completed Phase 2 Interventional Results available

A Pilot Study Assessing the Treatment Responsiveness of a Novel Osteoarthritis Stiffness Scale

NCT03570554
View directory record Official record
Conditions
Osteoarthritis, Knee
Interventions
Naproxen Sodium (Aleve, BAY117031), Acetaminophen ER, Celecoxib, Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
40 Years to 80 Years
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
5
States / cities
Chandler, Arizona • Pinellas Park, Florida • Chicago, Illinois + 2 more
Source: ClinicalTrials.gov public record
Updated Jun 18, 2020 · Synced Sep 8, 2026, 10:09 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 11, 2019 · Synced Sep 8, 2026, 10:09 PM EDT
Completed Phase 4 Interventional

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

NCT00640627
View directory record Official record
Conditions
Osteoarthritis, Knee
Interventions
Celecoxib, Placebo
Drug
Lead sponsor
Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Industry
Eligibility
40 Years and older
Enrollment
380 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2004
U.S. locations
30
States / cities
Phoenix, Arizona • Tucson, Arizona • Long Beach, California + 27 more
Source: ClinicalTrials.gov public record
Updated Feb 1, 2021 · Synced Sep 8, 2026, 10:09 PM EDT
Completed Phase 2 Interventional

A Study of ABT-652 in Adults With Osteoarthritis Pain of the Knee

NCT01207115
View directory record Official record
Conditions
Osteoarthritis of the Knee
Interventions
ABT-652, Placebo, Naproxen
Drug
Lead sponsor
AbbVie (prior sponsor, Abbott)
Industry
Eligibility
40 Years to 75 Years
Enrollment
322 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
23
States / cities
Chandler, Arizona • Tempe, Arizona • Tucson, Arizona + 20 more
Source: ClinicalTrials.gov public record
Updated Jan 6, 2013 · Synced Sep 8, 2026, 10:09 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Mechanistic Characterization of Uterine Pain

NCT04145518
View directory record Official record
Conditions
Dysmenorrhea (Disorder), Dysmenorrhea Primary, Dysmenorrhea Secondary, Endometrial Diseases, Leiomyoma, Fibroid Uterus
Interventions
Naproxen Sodium
Drug
Lead sponsor
Endeavor Health
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
183 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2025
U.S. locations
1
States / cities
Evanston, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 11, 2025 · Synced Sep 8, 2026, 10:09 PM EDT
Not listed Not applicable Interventional

Treximet in Acute Migraine Headache: Assessing Cognitive Function

NCT00837044
View directory record Official record
Conditions
Migraine Headache, Cognitive Impairment
Interventions
Treximet, Migraine rescue medication of choice
Drug
Lead sponsor
Neurological Research Center
Industry
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
1
States / cities
Bennington, Vermont
Source: ClinicalTrials.gov public record
Updated Feb 4, 2009 · Synced Sep 8, 2026, 10:09 PM EDT
Completed Phase 3 Interventional

Menstrual Migraine Treatment With TREXIMET (Formerly Known as TREXIMA)

NCT00329355
View directory record Official record
Conditions
Migraine, Migraine Disorders
Interventions
sumatriptan succinate/naproxen sodium
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 65 Years · Female only
Enrollment
351 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006
U.S. locations
35
States / cities
Chandler, Arizona • Irvine, California • Redondo Beach, California + 30 more
Source: ClinicalTrials.gov public record
Updated Jan 22, 2017 · Synced Sep 8, 2026, 10:09 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study Assessing Inhibition of Serum Thromboxane B2 Levels With PN400 and Low Dose Aspirin

NCT01094483
View directory record Official record
Conditions
Platelet Inhibition
Interventions
PN400, ASA, Placebo
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
50 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Dec 6, 2010 · Synced Sep 8, 2026, 10:09 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 8, 2026, 10:09 PM EDT
Completed Phase 3 Interventional

To Evaluate the Safety and Efficacy of Trexima in the Acute Treatment of Migraine Headaches

NCT00433732
View directory record Official record
Conditions
Migraine Headaches
Interventions
sumatriptan, naproxen sodium
Drug
Lead sponsor
POZEN
Industry
Eligibility
18 Years to 65 Years
Enrollment
1,400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
2
States / cities
Little Rock, Arkansas • Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 11, 2007 · Synced Sep 8, 2026, 10:09 PM 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 8, 2026, 10:09 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Idiopathic Intracranial Hypertension Treatment Trial

NCT01003639
View directory record Official record
Conditions
Idiopathic Intracranial Hypertension
Interventions
Acetazolamide, Placebo, Formal weight loss counselling program
Drug · Behavioral
Lead sponsor
St. Luke's-Roosevelt Hospital Center
Other
Eligibility
18 Years to 60 Years
Enrollment
165 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
39
States / cities
Birmingham, Alabama • Los Angeles, California • Waterbury, Connecticut + 31 more
Source: ClinicalTrials.gov public record
Updated Dec 11, 2018 · Synced Sep 8, 2026, 10:09 PM EDT