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ClinicalTrials.gov public records Last synced Sep 27, 2026, 8:44 AM EDT

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Showing 1–19 of 19 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Acetaminophen 650 mg Oral Tablet Clear all
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 Aug 31, 2021 · Synced Sep 27, 2026, 8:44 AM EDT
Not yet recruiting Phase 4 Interventional

Post-op Analgesia of Nail Unit Procedures

NCT07820969
View directory record Official record
Conditions
Nail Diseases
Interventions
Suzetrigine, Oxycodone + Acetaminophen, Acetaminophen/Ibuprofen
Drug
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Sep 14, 2026 · Synced Sep 27, 2026, 8:44 AM EDT
Completed Phase 4 Interventional Results available

Study to Collect Information on How Well the Study Drug Naproxen Sodium Tablets Works Compared to Hydrocodone/Acetaminophen Tablets in Order to Relieve Pain in Participants Experiencing Moderate to Severe Pain After Having Their Wisdom Teeth Removed

NCT04307940
View directory record Official record
Conditions
Pain
Interventions
Naproxen Sodium (Aleve, BAY117031), Hydrocodone/Acetaminophen, Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 40 Years
Enrollment
221 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jul 13, 2022 · Synced Sep 27, 2026, 8:44 AM EDT
Completed Phase 3 Interventional Results available

Aspirin for Exercise in Multiple Sclerosis (ASPIRE)

NCT03824938
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Aspirin 650mg Oral Capsule, Acetaminophen Tablet 650mg, Placebo
Drug · Other
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 70 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 26, 2023 · Synced Sep 27, 2026, 8:44 AM EDT
Completed Phase 4 Interventional Results available

Postoperative Pain Control in Septum and Sinus Surgery

NCT04149964
View directory record Official record
Conditions
Post-operative Pain, Sinus Surgery
Interventions
Acetaminophen 325 mg Oral Tablet, Acetaminophen 650 mg Oral Tablet, OxyCODONE 5 mg Oral Tablet, Acetaminophen/Hydrocodone 325 mg/7.5 mg oral tablet
Drug
Lead sponsor
Corewell Health East
Other
Eligibility
18 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Farmington Hills, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 30, 2023 · Synced Sep 27, 2026, 8:44 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Combination Immunosuppressive Therapy to Prevent Kidney Transplant Rejection in Adults

NCT00078559
View directory record Official record
Conditions
Kidney Transplantation, Kidney Disease
Interventions
Alemtuzumab, Sirolimus, Tacrolimus, Kidney transplant, Methylprednisolone (or equivalent), Acetaminophen, Diphenhydramine, Trimethoprim (TMP)/Sulfa (Bactrim, Septra), Valgancyclovir, Acyclovir, Pentamidine, Clotrimazole, Nystatin
Drug · Procedure
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2010
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jun 28, 2018 · Synced Sep 27, 2026, 8:44 AM 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 20, 2023 · Synced Sep 27, 2026, 8:44 AM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Efficacy of Combined Ibuprofen and Acetaminophen Therapy Versus Ibuprofen Alone Versus Placebo Alone for Pain Management

NCT04059172
View directory record Official record
Conditions
Pain, Orofacial
Interventions
Ibuprofen 200 mg and acetaminphen 650 mg, Ibuprofen 200 mg, Placebo oral tablet
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
12 Years to 80 Years
Enrollment
375 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2028
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Sep 27, 2026, 8:44 AM EDT
Completed Phase 2 Interventional Results available

Oral Acetaminophen for Post-Op Pain Management in Bariatric Surgery Patients

NCT06658574
View directory record Official record
Conditions
Post Operative Analgesia, Bariatric Surgery, Bariatric Surgery (Gastric Bypass), Bariatric Surgery Patients, Perioperative Analgesia
Interventions
Acetaminophen
Drug
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Aug 23, 2026 · Synced Sep 27, 2026, 8:44 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Effect of Post-operative Ibuprofen After Surgery for Chronic Rhinosinusitis

NCT03055507
View directory record Official record
Conditions
Chronic Rhinosinusitis (Diagnosis)
Interventions
Ibuprofen 400 mg, Acetaminophen 650 mg, OxyCODONE 5 Mg Oral Tablet
Drug
Lead sponsor
University of Washington
Other
Eligibility
Not listed
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Mar 21, 2023 · Synced Sep 27, 2026, 8:44 AM 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 Sep 16, 2026 · Synced Sep 27, 2026, 8:44 AM EDT
Completed Phase 1 Interventional

Patient Controlled Administration of Liquid Acetaminophen

NCT06498713
View directory record Official record
Conditions
Pain, Pain, Postoperative
Interventions
Acetaminophen 650 mg Oral Tablet, Acetaminophen 650mg Liquid, CADD pump
Drug · Device
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 5, 2026 · Synced Sep 27, 2026, 8:44 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, 8:44 AM EDT
Terminated Phase 3 Interventional Results available

Management Of Pain After Cesarean Trial

NCT03929640
View directory record Official record
Conditions
Pain, Postoperative, Opioid Use
Interventions
Acetaminophen, Placebo, Ibuprofen
Drug
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 3, 2024 · Synced Sep 27, 2026, 8:44 AM EDT
Completed Phase 3 Interventional Results available

Study of COV795 in Subjects With Osteoarthritis or Chronic Low Back Pain

NCT01451385
View directory record Official record
Conditions
Osteoarthritis, Low Back Pain
Interventions
COV795
Drug
Lead sponsor
Mallinckrodt
Industry
Eligibility
18 Years and older
Enrollment
376 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
42
States / cities
Tucson, Arizona • Anaheim, California • Buena Park, California + 33 more
Source: ClinicalTrials.gov public record
Updated Sep 17, 2020 · Synced Sep 27, 2026, 8:44 AM EDT
Terminated Phase 1Phase 2 Interventional Results available

Siplizumab for Sickle Cell Disease Transplant

NCT06078696
View directory record Official record
Conditions
Anemia, Sickle Cell
Interventions
Siplizumab, Exchange Transfusion, Total Body Irradiation, Stem Cell Infusion, Cyclophosphamide 50mg, Mesna, Sirolimus Oral Tablet, Rituximab or Biosimilar
Drug · Procedure
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 50 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Sep 27, 2026, 8:44 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Ultrasound-guided Transversus Abdominis Plane Block After Hysterectomy

NCT01153503
View directory record Official record
Conditions
Post Operative Pain
Interventions
TAP block
Procedure
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 80 Years · Female only
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Feb 28, 2018 · Synced Sep 27, 2026, 8:44 AM EDT
Completed Phase 3 Interventional Results available

A Safety And Efficacy Study of Ibuprofen 250 mg / Acetaminophen 500 mg In The Treatment Of Post-Surgical Dental Pain

NCT02912650
View directory record Official record
Conditions
Post-surgical Pain Following Extraction of Molar Teeth
Interventions
Ibuprofen 250 mg / Acetaminophen 500 mg, Ibuprofen 250 mg, Acetaminophen 650 mg, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 40 Years
Enrollment
568 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Aug 29, 2017 · Synced Sep 27, 2026, 8:44 AM EDT
Terminated Phase 2 Interventional Results available

Belatacept to Prevent Organ Rejection in Kidney Transplant Patients

NCT00346151
View directory record Official record
Conditions
Renal Transplant
Interventions
Belatacept, Sirolimus, Anti-thymocyte globulin, methylprednisolone
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 65 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
2
States / cities
San Francisco, California • Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Apr 20, 2017 · Synced Sep 27, 2026, 8:44 AM EDT