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Showing 1–24 of 97 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Acetaminophen 650 MG 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, 10:28 AM EDT
Withdrawn Early Phase 1 Interventional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 1, 2024 · Synced Sep 8, 2026, 10:28 AM EDT
Terminated Phase 1 Interventional

Irradiated Donor Lymphocytes and Rituximab in Treating Patients With Relapsed or Refractory Lymphoproliferative Disease

NCT00176475
View directory record Official record
Conditions
Leukemia, Lymphoma, Multiple Myeloma and Plasma Cell Neoplasm
Interventions
rituximab, therapeutic allogeneic lymphocytes
Biological
Lead sponsor
University of Medicine and Dentistry of New Jersey
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Sep 16, 2013 · Synced Sep 8, 2026, 10:28 AM 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 Aug 31, 2021 · Synced Sep 8, 2026, 10:28 AM EDT
Completed Phase 2 Interventional Results available

Early Administration of ATG Followed by Cyclophosphamide, Busulfan and Fludarabine Before a Donor Stem Cell Transplant in Patients With Hematological Cancer

NCT00787761
View directory record Official record
Conditions
Myeloproliferative Disorders, Kidney Cancer, Leukemia, Lymphoma, Multiple Myeloma and Plasma Cell Neoplasm, Myelodysplastic Syndromes, Myelodysplastic/Myeloproliferative Diseases
Interventions
anti-thymocyte globulin, busulfan, cyclophosphamide, fludarabine phosphate, methotrexate, tacrolimus, nonmyeloablative allogeneic HSCT
Biological · Drug · Procedure
Lead sponsor
Northside Hospital, Inc.
Other
Eligibility
Up to 75 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 30, 2012 · Synced Sep 8, 2026, 10:28 AM EDT
Completed Phase 3 Interventional Results available

To Evaluate the Safety and Efficacy of Acetaminophen 650 mg and 1000mg in Dental Pain After Surgery

NCT01115673
View directory record Official record
Conditions
Pain
Interventions
Acetaminophen, Placebo Control
Drug
Lead sponsor
McNeil Consumer Healthcare Division of McNEIL-PPC, Inc.
Industry
Eligibility
16 Years to 50 Years
Enrollment
540 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 May 27, 2012 · Synced Sep 8, 2026, 10:28 AM EDT
Recruiting No phase listed Observational

Liposomal Bupivacaine and Transoral Robotic Surgery

NCT05862792
View directory record Official record
Conditions
Oropharyngeal Cancer, Dysphagia, Oropharyngeal, Post Operative Pain, Transoral Robotic Surgery
Interventions
Liposomal bupivacaine
Drug
Lead sponsor
Geisinger Clinic
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 8, 2025 · Synced Sep 8, 2026, 10:28 AM EDT
Terminated Phase 4 Interventional Results available

Comparison of Exparel to Bupivacaine With Dexamethasone in TAP Block

NCT02179892
View directory record Official record
Conditions
Pain
Interventions
Bupivacaine Extended-Release Liposome Injection (Exparel), Bupivacaine and Dexamethasone Injection, IV Acetaminophen, Oral Acetaminophen
Drug
Lead sponsor
Colette Curtis MD
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 10, 2017 · Synced Sep 8, 2026, 10:28 AM EDT
Completed Phase 4 Interventional

A Study Of Opioid Avoidance In Surgery Through Integrating Suzetrigine

NCT07257133
View directory record Official record
Conditions
Post Operative Pain
Interventions
Suzetrigine
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Sep 8, 2026, 10:28 AM EDT
Completed Not applicable Interventional

Tap Block vs Conventional Pain Medication for Patients Undergoing Robotic Sacrocolpopexy

NCT04440475
View directory record Official record
Conditions
Anesthesia, Local, Prolapse, Prolapse; Female, Prolapse, Vaginal, Prolapse; Vagina, Posthysterectomy, Pain, Postoperative
Interventions
TAP block
Procedure
Lead sponsor
ProMedica Health System
Other
Eligibility
18 Years and older · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Toledo, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Sep 8, 2026, 10:28 AM EDT
Completed Not applicable Interventional

Use Ear Acupuncture as Treatment for Low Back Pain During Pregnancy

NCT00571480
View directory record Official record
Conditions
Pregnancy Related Low Back Pain
Interventions
acupuncture, Sham acupuncture, standard of care
Other
Lead sponsor
Yale University
Other
Eligibility
13 Years to 46 Years · Female only
Enrollment
159 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 20, 2009 · Synced Sep 8, 2026, 10:28 AM EDT
Completed Phase 2 Interventional Results available

Phase 2 Trial of Prophylactic Rituximab Therapy for Prevention of CGVHD

NCT00186628
View directory record Official record
Conditions
Leukemia, Mast-Cell, Mantle-cell Lymphoma
Interventions
Total lymphoid irradiation, Rituximab, Anti-thymoglobulin, rabbit (ATG, rabbit ATG), Cyclosporine, Mycophenylate mofetil, Filgrastim, Granisetron, Solumedrol, Acetaminophen, Diphenhydramine, Hydrocortisone
Procedure · Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 76 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Nov 27, 2017 · Synced Sep 8, 2026, 10:28 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Analgesic Efficacy & Safety of Intravenous (IV) Acetaminophen Versus Placebo for the Treatment of Postop Pain

NCT00564486
View directory record Official record
Conditions
Pain
Interventions
IV Placebo, IV Acetaminophen
Drug
Lead sponsor
Mallinckrodt
Industry
Eligibility
18 Years to 80 Years
Enrollment
244 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
17
States / cities
Sheffield, Alabama • Phoenix, Arizona • Arcadia, California + 11 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2016 · Synced Sep 8, 2026, 10:28 AM EDT
Recruiting Phase 2 Interventional

Iberdomide, Daratumumab, Carfilzomib, and Dexamethasone (Iber-KDd) in Patients With Relapsed/Refractory Multiple Myeloma

NCT05896228
View directory record Official record
Conditions
Refractory Multiple Myeloma, Relapsed Multiple Myeloma
Interventions
Iberdomide, Carfilzomib, Daratumumab, Dexamethasone, Acetaminophen, Diphenhydramine, Montelukast
Drug
Lead sponsor
Benjamin T Diamond, MD
Other
Eligibility
18 Years to 75 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2031
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Mar 10, 2026 · Synced Sep 8, 2026, 10:28 AM EDT
Completed Phase 2 Interventional Results available

Postoperative Ibuprofen and the Risk of Bleeding After Tonsillectomy With or Without Adenoidectomy

NCT01605903
View directory record Official record
Conditions
Tonsillectomy, Adenoidectomy
Interventions
Ibuprofen, Acetaminophen
Drug
Lead sponsor
Massachusetts Eye and Ear Infirmary
Other
Eligibility
2 Years to 18 Years
Enrollment
741 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
5
States / cities
San Diego, California • Boston, Massachusetts • San Antonio, Texas + 2 more
Source: ClinicalTrials.gov public record
Updated Apr 23, 2018 · Synced Sep 8, 2026, 10:28 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 8, 2026, 10:28 AM EDT
Completed Phase 4 Interventional Results available

Multimodal Pain Study in Free Flap Patients

NCT04246697
View directory record Official record
Conditions
Head and Neck Cancer, Analgesia
Interventions
Tylenol, Oxycodone, Morphine, Gabapentin, toradol, Bupivacaine
Drug
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Sep 8, 2026, 10:28 AM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy of Intravenous Acetaminophen (IV APAP) in Adult Inpatients

NCT00598559
View directory record Official record
Conditions
Acute Pain, Fever
Interventions
IV Acetaminophen
Drug
Lead sponsor
Mallinckrodt
Industry
Eligibility
18 Years to 85 Years
Enrollment
213 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
14
States / cities
Arcadia, California • Glendale, California • Laguna Hills, California + 10 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2016 · Synced Sep 8, 2026, 10:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Preoperative Gabapentin for Acute and Chronic Post-thoracotomy Analgesia

NCT00588159
View directory record Official record
Conditions
Pain
Interventions
Gabapentin, Diphenhydramine
Drug
Lead sponsor
Michelle Kinney
Other
Eligibility
45 Years to 75 Years
Enrollment
146 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 3, 2016 · Synced Sep 8, 2026, 10:28 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 Aug 5, 2026 · Synced Sep 8, 2026, 10:28 AM EDT
Completed Phase 1 Interventional

Study of Venetoclax Plus DA-EPOCH-R for the Treatment of Aggressive B-Cell Lymphomas

NCT03036904
View directory record Official record
Conditions
Diffuse Large B-Cell Lymphoma, High Grade B-Cell Lymphoma
Interventions
Venetoclax, Rituximab, Etoposide, Vincristine Sulfate, Cyclophosphamide, Prednisone, Doxorubicin Hydrochloride
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 80 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
6
States / cities
Boston, Massachusetts • St Louis, Missouri • New York, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 23, 2022 · Synced Sep 8, 2026, 10:28 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 8, 2026, 10:28 AM EDT
Active, not recruiting Phase 3 Interventional Results available

A Study to Evaluate the Efficacy and Safety of Obinutuzumab in Participants With ISN/RPS 2003 Class III or IV Lupus Nephritis

NCT04221477
View directory record Official record
Conditions
Lupus Nephritis
Interventions
Obinutuzumab, MMF, Prednisone, Placebo, Methylprednisolone, Acetaminophen, Diphenhydramine
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years to 75 Years
Enrollment
271 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2031
U.S. locations
18
States / cities
Birmingham, Alabama • Beverly Hills, California • Fontana, California + 14 more
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Sep 8, 2026, 10:28 AM EDT