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ClinicalTrials.gov public records Last synced Oct 19, 2026, 2:04 PM EDT

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Showing 1–24 of 87 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Acetaminophen 500 mg Clear all
Withdrawn Early Phase 1 Interventional

Melphalan on Disease Burden Measured by Next Generation Sequencing Before AHCT (Autologous Hematopoietic Cell Transplant) for Multiple Myeloma

NCT05013437
View directory record Official record
Conditions
Multiple Myeloma
Interventions
Evomela, Next Generation Sequencing, Prochlorperazine, Acetaminophen, Diphenhydramine
Drug · Device
Lead sponsor
Koen van Besien
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 2, 2024 · Synced Oct 19, 2026, 2:04 PM EDT
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 5, 2022 · Synced Oct 19, 2026, 2:04 PM EDT
Completed Phase 2 Interventional Results available

Rituximab for Treatment of Systemic Sclerosis-Associated Pulmonary Arterial Hypertension (SSc-PAH)

NCT01086540
View directory record Official record
Conditions
Systemic Sclerosis-Associated PAH
Interventions
Rituximab, Placebo, CMRI, prednisone, methylprednisolone, diphenhydramine, acetaminophen
Biological · Other · Diagnostic Test + 1 more
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 75 Years
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2019
U.S. locations
17
States / cities
Stanford, California • Aurora, Colorado • Iowa City, Iowa + 13 more
Source: ClinicalTrials.gov public record
Updated Feb 21, 2023 · Synced Oct 19, 2026, 2:04 PM EDT
Terminated Phase 4 Interventional Results available

Opioid Free vs. Standard Perioperative Pain Regimen for Anterior Cervical Discectomy and Fusion (ACDF) Surgery

NCT04990804
View directory record Official record
Conditions
Opioid Use, Spinal Diseases, Surgery--Complications, Surgery, Postoperative Pain
Interventions
Opioid Analgesic, Opioid-Free Postoperative Pain Regimen
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 31, 2024 · Synced Oct 19, 2026, 2:04 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Reduced Opioid Prescription After Laparoscopic Hysterectomy

NCT05548582
View directory record Official record
Conditions
Pain, Postoperative, Opioid Misuse, Opioid Use, Pain
Interventions
OxyCODONE 5 mg Oral Tablet, Acetaminophen 500 mg Tab, Ibuprofen 600 mg
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older · Female only
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 12, 2026 · Synced Oct 19, 2026, 2:04 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Effect of Race/Ethnicity and Genes on Acetaminophen Pharmacokinetics

NCT00768716
View directory record Official record
Conditions
Pain, Fever, Hepatotoxicity
Interventions
Acetaminophen
Drug
Lead sponsor
Tufts University
Other
Eligibility
18 Years to 64 Years
Enrollment
95 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 23, 2019 · Synced Oct 19, 2026, 2:04 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, 2:04 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, 2:04 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, 2:04 PM EDT
Completed Not applicable Interventional Results available

Comparing Effectiveness of IV vs Oral Acetaminophen Given Perioperatively for Lap Choles for Pain Control,

NCT01823224
View directory record Official record
Conditions
Laparoscopic Cholecystectomy
Interventions
2 capsules Oral Tylenol 2000 mg and IV "salt water", IV tylenol 1000mg and 2 oral capsule "sugar pills"
Drug
Lead sponsor
Defense and Veterans Center for Integrative Pain Management
Other
Eligibility
18 Years and older
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Fort Bragg, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 6, 2016 · Synced Oct 19, 2026, 2:04 PM EDT
Completed Phase 3 Interventional Results available

Randomized, Double-Blind, Single-Dose, Efficacy and Safety Study of Test Acetaminophen Tablet in Postoperative Dental Pain

NCT03224403
View directory record Official record
Conditions
Post-operative Dental Pain
Interventions
Test acetaminophen, Commercial acetaminophen, Commercial ibuprofen, Placebo
Drug
Lead sponsor
Johnson & Johnson Consumer Inc., McNeil Consumer Healthcare Division
Industry
Eligibility
17 Years to 50 Years
Enrollment
664 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 15, 2021 · Synced Oct 19, 2026, 2:04 PM EDT
Completed Phase 4 Interventional Results available

Muscle Relaxation for Pediatric Adenotonsillectomy

NCT06225466
View directory record Official record
Conditions
Tonsillectomy
Interventions
Rocuronium, Sugammadex, Anesthesia without neuromuscular blockade
Drug · Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
2 Years to 12 Years
Enrollment
172 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jul 28, 2025 · Synced Oct 19, 2026, 2:04 PM EDT
Active, not recruiting Phase 3 Interventional

Sacituzumab Tirumotecan (MK-2870) Versus Chemotherapy in Previously Treated Advanced or Metastatic Nonsquamous Non-small Cell Lung Cancer (NSCLC) With EGFR Mutations or Other Genomic Alterations (MK-2870-004)

NCT06074588
View directory record Official record
Conditions
Non-small Cell Lung Cancer (NSCLC)
Interventions
Sacituzumab tirumotecan, Docetaxel, Pemetrexed
Biological · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
556 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2030
U.S. locations
16
States / cities
Los Angeles, California • Jacksonville, Florida • Orange City, Florida + 13 more
Source: ClinicalTrials.gov public record
Updated Aug 14, 2026 · Synced Oct 19, 2026, 2:04 PM EDT
Withdrawn Phase 4 Interventional

Randomized Trial of Two Analgesics in Elderly ED Patients

NCT02703610
View directory record Official record
Conditions
Pain
Interventions
Oxycodone/acetaminophen, Ibuprofen/acetaminophen
Drug
Lead sponsor
Albany Medical College
Other
Eligibility
65 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Albany, New York
Source: ClinicalTrials.gov public record
Updated Sep 21, 2023 · Synced Oct 19, 2026, 2:04 PM EDT
Terminated Phase 4 Interventional Results available

Aggressive Fever Control With Intravenous Ibuprofen After Non-traumatic Brain Hemorrhage

NCT01530880
View directory record Official record
Conditions
Fever
Interventions
Intravenous Ibuprofen, Acetaminophen (Standard of Care)
Drug
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 28, 2017 · Synced Oct 19, 2026, 2:04 PM EDT
Not listed Phase 3 Interventional Accepts healthy volunteers

Pain Management After Surgery

NCT05154682
View directory record Official record
Conditions
Pain, Postoperative
Interventions
OxyCODONE 5 mg Oral Tablet, Acetaminophen 500Mg Tab, Naproxen 500 Mg
Drug
Lead sponsor
Rothman Institute Orthopaedics
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 13, 2021 · Synced Oct 19, 2026, 2:04 PM EDT
Terminated Phase 4 Interventional Results available

Post-operative Analgesia in Elective, Soft-tissue Hand Surgery

NCT02029235
View directory record Official record
Conditions
Carpal Tunnel, Ganglion Cyst, Trigger Finger, De Quervain Disease
Interventions
Acetaminophen/Ibuprofen, Acetaminophen/Hydrocodone
Drug
Lead sponsor
Alexander Payatakes, M.D.
Other
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 13, 2018 · Synced Oct 19, 2026, 2:04 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 11, 2023 · Synced Oct 19, 2026, 2:04 PM EDT
Completed Phase 4 Interventional Results available

PO vs. IV Acetaminophen Given Perioperatively for 24 hr Post-op Pain Control Following Total Hip or Knee Replacement

NCT02244619
View directory record Official record
Conditions
Post-op Pain
Interventions
Oral acetaminophen, IV acetaminophen
Drug
Lead sponsor
Kettering Health Network
Other
Eligibility
18 Years and older
Enrollment
515 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Kettering, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 24, 2017 · Synced Oct 19, 2026, 2:04 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 28, 2019 · Synced Oct 19, 2026, 2:04 PM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Opioid Use After Laparoscopic Salpingectomy

NCT06434233
View directory record Official record
Conditions
Opioid Use, Post-operative Pain, Sterility, Female
Interventions
Acetaminophen, Ibuprofen, Oxycodone
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older · Female only
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Oct 19, 2026, 2:04 PM EDT
Terminated Phase 4 Interventional Results available

Multicenter Study to Compare Intravenous and Oral Acetaminophen for the Treatment of Acute Moderate to Severe Pain

NCT02746263
View directory record Official record
Conditions
Acute Pain, Postoperative
Interventions
IV acetaminophen, Oral acetaminophen, Morphine
Drug
Lead sponsor
Mallinckrodt
Industry
Eligibility
50 Years to 90 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
2
States / cities
Pensacola, Florida • Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 19, 2019 · Synced Oct 19, 2026, 2:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate Bioavailability and Food Effect of Selumetinib (AZD6244) in Healthy Male Participants

NCT03649165
View directory record Official record
Conditions
Neurofibromatosis Type 1 (NF1)-Related Plexiform Neurofibromas (PNs), Healthy Participants
Interventions
Treatment A, Treatment B, Treatment C, Treatment D, Acetaminophen
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 45 Years · Male only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 8, 2018 · Synced Oct 19, 2026, 2:04 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
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Oct 8, 2026 · Synced Oct 19, 2026, 2:04 PM EDT