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ClinicalTrials.gov public records Last synced Oct 19, 2026, 1:05 PM EDT

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Showing 97–120 of 948 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: acetaminophen Clear all
Withdrawn Phase 3 Interventional Accepts healthy volunteers

A Multiple-Dose Safety Study of Fixed Combination of Acetaminophen/Naproxen Sodium in Adolescents With Orthodontic Pain

NCT05845008
View directory record Official record
Conditions
Orthodontic Pain
Interventions
Acetaminophen/Naproxen Sodium Fixed Combination
Drug
Lead sponsor
Johnson & Johnson Consumer Inc. (J&JCI)
Industry
Eligibility
12 Years to 16 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Mar 5, 2024 · Synced Oct 19, 2026, 1:05 PM EDT
Recruiting Not applicable Interventional

Office-Based Ureteroscopy Utilizing a Single Use Digital, Flexible Ureteroscope for Upper Tract Urothelial Carcinoma

NCT07630155
View directory record Official record
Conditions
Renal Pelvis and Ureter Urothelial Carcinoma
Interventions
Analgesic Agent, Electronic Health Record Review, Lidocaine Topical, Medical Device Usage and Evaluation, Survey Administration, Ureteroscopy
Drug · Other · Device + 1 more
Lead sponsor
University of Michigan Rogel Cancer Center
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Oct 15, 2026 · Synced Oct 19, 2026, 1:05 PM EDT
Completed Not applicable Interventional Results available

Inhibition of Lipid Peroxidation During Cardiac Surgery

NCT01366976
View directory record Official record
Conditions
Cardiopulmonary Bypass Induced Lipid Peroxidation
Interventions
Acetaminophen
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 80 Years
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 27, 2015 · Synced Oct 19, 2026, 1:05 PM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

Journavx to Treat Pain After Thumb Basal Joint Arthroplasty

NCT07723352
View directory record Official record
Conditions
Thumb Basal Joint Osteoarthritis, Postoperative Pain, Joint Replacement Surgery, Joint Replacement
Interventions
suzetrigine 100mg, Acetaminophen
Drug
Lead sponsor
Rothman Institute Orthopaedics
Other
Eligibility
40 Years to 80 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 23, 2026 · Synced Oct 19, 2026, 1:05 PM EDT
Completed Phase 3 Interventional Results available

Study Evaluating A Novel Ibuprofen Formulation In The Treatment Of Dental Pain

NCT01216163
View directory record Official record
Conditions
Pain
Interventions
Novel Ibuprofen, Acetaminophen, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
16 Years to 40 Years
Enrollment
218 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Aug 20, 2012 · Synced Oct 19, 2026, 1:05 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Ice T Postoperative Multimodal Pain Regimen in FPMRS Surgery

NCT03052816
View directory record Official record
Conditions
Pain, Postoperative, Pelvic Organ Prolapse
Interventions
Ice T, Motrin/Percocet/Dilaudid for breakthrough
Drug
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
18 Years to 80 Years · Female only
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated May 19, 2023 · Synced Oct 19, 2026, 1:05 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacokinetic Study Investigating the Extent of Paracetamol Absorption From a New Formulation of Paracetamol Compared With Panadol® Extend

NCT01540721
View directory record Official record
Conditions
Healthy Subjects
Interventions
Marketed paracetamol, Experimental paracetamol formulation
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 55 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Nov 24, 2014 · Synced Oct 19, 2026, 1:05 PM EDT
Completed Phase 2 Interventional Results available

Safety Study of Ornithine Phenylacetate to Treat Patients With Acute Liver Failure/Severe Acute Liver Injury

NCT01548690
View directory record Official record
Conditions
Acute Liver Failure, Acute Liver Injury
Interventions
Ornithine Phenylacetate
Drug
Lead sponsor
William Lee
Other
Eligibility
18 Years to 65 Years
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
11
States / cities
San Francisco, California • New Haven, Connecticut • Atlanta, Georgia + 8 more
Source: ClinicalTrials.gov public record
Updated Oct 30, 2018 · Synced Oct 19, 2026, 1:05 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Protective Effect of Nicotinamide Riboside Against Acetaminophen Toxicity

NCT06214468
View directory record Official record
Conditions
Drug Toxicity
Interventions
Acetaminophen and Nicotinamide Riboside, Acetaminophen
Combination Product · Drug
Lead sponsor
University of South Alabama
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Mobile, Alabama
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Oct 19, 2026, 1:05 PM 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 2, 2025 · Synced Oct 19, 2026, 1:05 PM EDT
Terminated Phase 3 Interventional Results available

Post-operative Course of Dexamethasone to Reduce Tonsillectomy Morbidity

NCT04879823
View directory record Official record
Conditions
Adenotonsillectomy, Analgesia, Surgery
Interventions
Dexamethasone, Ibuprofen, Acetaminophen, Placebo
Drug
Lead sponsor
David Chi, MD
Other
Eligibility
3 Years to 17 Years
Enrollment
222 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania • Sewickley, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 5, 2024 · Synced Oct 19, 2026, 1:05 PM EDT
Terminated Not applicable Interventional Results available

Intravenous Acetaminophen Use With Bariatric Surgery on Morbidly Obese Patients

NCT01527942
View directory record Official record
Conditions
Obesity, Pain
Interventions
Acetaminophen, Placebo
Drug
Lead sponsor
Trinity Health Of New England
Other
Eligibility
20 Years to 70 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 17, 2015 · Synced Oct 19, 2026, 1:05 PM EDT
Withdrawn Phase 2 Interventional

Pilot RCT of Therapeutic Hypothermia Plus Neuromuscular Blockade in COVID-19 Patients With ARDS

NCT03376854
View directory record Official record
Conditions
Respiratory Distress Syndrome, Adult, Sars-CoV2
Interventions
Hypothermia, Neuromuscular Blocking Agents, Standard of Care
Device · Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 30, 2021 · Synced Oct 19, 2026, 1:05 PM EDT
Completed Phase 4 Interventional Results available

Pain Control Following Sinus Surgery

NCT03783702
View directory record Official record
Conditions
Sinusitis, Opioid Use, Opioid Abuse, Narcotic Use, Otolaryngologic Disease, Postoperative Pain, Pain
Interventions
OxyCODONE 5 Mg (milligram) Oral Tablet, Ibuprofen 600 Mg (milligram) Oral Tablet, Acetaminophen 650 MG (milligram) Oral Tablet
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
118 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
5
States / cities
Stanford, California • Evanston, Illinois • Rochester, Minnesota + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 1, 2021 · Synced Oct 19, 2026, 1:05 PM EDT
Withdrawn Phase 4 Interventional

Adjunctive 5% Lidocaine Patches for Acute Non-radicular Low Back Pain in Emergency Department Patients

NCT03301766
View directory record Official record
Conditions
Low Back Pain
Interventions
lidocaine 5% patch, standard therapy, Non-medicated patch
Drug
Lead sponsor
Cook County Health
Government
Eligibility
24 Years to 64 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 29, 2023 · Synced Oct 19, 2026, 1:05 PM EDT
Completed Phase 4 Interventional Results available

Intravenous Acetaminophen in Craniotomy

NCT01598701
View directory record Official record
Conditions
Postoperative Pain
Interventions
Acetaminophen, Placebo
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 120 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 19, 2018 · Synced Oct 19, 2026, 1:05 PM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers

Sprix for Postoperative Pain Control Following Gynecologic Surgery

NCT04444830
View directory record Official record
Conditions
Post Operative Pain Control, Narcotic Use, Pelvic Organ Prolapse, Urinary Incontinence , Stress, Surgery
Interventions
Sprix
Drug
Lead sponsor
University of Louisville
Other
Eligibility
18 Years and older · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Jul 29, 2022 · Synced Oct 19, 2026, 1:05 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Acupuncture ACL (Anterior Cruciate Ligament)

NCT03711734
View directory record Official record
Conditions
ACL, ACL Injury, Anterior Cruciate Ligament Injury, Anterior Cruciate Ligament Rupture, Anesthesia
Interventions
Acupuncture + Standard of Care
Other
Lead sponsor
Hospital for Special Surgery, New York
Other
Eligibility
12 Years to 80 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 27, 2024 · Synced Oct 19, 2026, 1:05 PM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers

Efficacy of a Single Dose of Aspirin vs. Acetaminophen in Tension Type Headache

NCT01552798
View directory record Official record
Conditions
Headache
Interventions
Acetylsalicylic acid (Aspirin, BAY1019036), Acetaminophen, Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 65 Years
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Kalamazoo, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 19, 2018 · Synced Oct 19, 2026, 1:05 PM EDT
Terminated Early Phase 1 Interventional

PVB vs Ketamine/Lidocaine in Rib Fracture Patients

NCT04413799
View directory record Official record
Conditions
Rib Fractures, Rib Trauma, Rib Fracture Multiple, Pain, Acute
Interventions
lidocaine, ketamine intravenous infusion, paravertebral block with ropivicaine
Combination Product · Drug
Lead sponsor
George Washington University
Other
Eligibility
18 Years to 80 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jun 22, 2025 · Synced Oct 19, 2026, 1:05 PM EDT
Completed Not applicable Interventional

Virtual Reality, Debriefing and Chronic Pain

NCT05254509
View directory record Official record
Conditions
Chronic Pain
Interventions
Occupational Therapy, Occupational Therapy +Virtual Reality
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 11, 2025 · Synced Oct 19, 2026, 1:05 PM EDT
Completed Not applicable Interventional

Genicular Nerve Block for Knee Pain in the ED

NCT07158736
View directory record Official record
Conditions
Knee Pain
Interventions
Genicular nerve block with bupivacaine and corticosteroids, Standard of Care
Procedure · Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
4
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 2, 2026 · Synced Oct 19, 2026, 1:05 PM EDT
Completed Phase 3 Interventional Results available

Study of Post-Herniorrhaphy Non-opioid MMA Regimens

NCT03907176
View directory record Official record
Conditions
Analgesia
Interventions
HTX-011, Luer lock applicator, Ibuprofen, Acetaminophen
Drug · Device
Lead sponsor
Heron Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
209 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
30
States / cities
Anaheim, California • La Mesa, California • Orange, California + 22 more
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Oct 19, 2026, 1:05 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study of Ibuprofen 250 mg / Acetaminophen 500 mg Comparing The Antipyretic Effects in Healthy Male Volunteers

NCT02761980
View directory record Official record
Conditions
Fever
Interventions
Ibuprofen 250 mg / Acetaminophen 500 mg, Ibuprofen 250 mg, Acetaminophen 500 mg, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
290 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 7, 2018 · Synced Oct 19, 2026, 1:05 PM EDT