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ClinicalTrials.gov public records Last synced Oct 19, 2026, 12:10 PM EDT

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Showing 1–24 of 90 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Acetaminophen 1000mg Clear all
Completed Not applicable Interventional Results available

Pain Control After Cardiac Surgery Using Intravenous Acetaminophen

NCT01822821
View directory record Official record
Conditions
Pain
Interventions
IV Acetaminophen, Placebo
Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years to 80 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated May 15, 2017 · Synced Oct 19, 2026, 12:10 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, 12:10 PM EDT
Completed Early Phase 1 Interventional

Towards Enhanced Recovery After Cesarean

NCT04612920
View directory record Official record
Conditions
Cesarean Section Complications
Interventions
Ibuprofen, acetaminophen, oxycodone
Drug
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Mar 14, 2023 · Synced Oct 19, 2026, 12:10 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, 12:10 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, 12:10 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, 12:10 PM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Optimizing Pain Control in Transurethral Resection of the Prostate

NCT04102566
View directory record Official record
Conditions
Pain, BPH With Urinary Obstruction, BPH With Urinary Obstruction With Other Lower Urinary Tract Symptoms
Interventions
Ibuprofen 600 mg, Education
Drug · Behavioral
Lead sponsor
Benaroya Research Institute
Other
Eligibility
18 Years and older · Male only
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 27, 2019 · Synced Oct 19, 2026, 12:10 PM EDT
Completed No phase listed Observational

Serratus Anterior Plane Block for Improving Pain and Respiratory Function in Patients With Multiple Rib Fractures

NCT04311827
View directory record Official record
Conditions
Rib Fracture Multiple
Interventions
Serratus Anterior Plane Block
Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Aug 25, 2022 · Synced Oct 19, 2026, 12:10 PM EDT
Completed Phase 4 Interventional Results available

Analgesia After Total Knee Arthroplasty: Peri-Articular Injection Versus Epidural + Femoral Nerve Blockade

NCT01335542
View directory record Official record
Conditions
Readiness to Discharge
Interventions
Peri-Articular Injection, Epidural Pathway (PCEA+FNB)
Procedure
Lead sponsor
Hospital for Special Surgery, New York
Other
Eligibility
18 Years to 85 Years
Enrollment
91 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 14, 2022 · Synced Oct 19, 2026, 12:10 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Treg Therapy in Subclinical Inflammation in Kidney Transplantation

NCT02711826
View directory record Official record
Conditions
Kidney Transplant, Adult Living Donor Kidney Transplant Recipients, Renal Transplant, Living Kidney Donor
Interventions
Polyclonal Regulatory T Cells, Everolimus, Tacrolimus, Mycophenolate mofetil, Mycophenolic acid, Acetaminophen, Diphenhydramine, Biopsy, Kidney, Blood Draw, Leukapheresis, IS regimen conversion
Biological · Drug · Procedure
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2023
U.S. locations
6
States / cities
Birmingham, Alabama • San Francisco, California • Aurora, Colorado + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 24, 2026 · Synced Oct 19, 2026, 12:10 PM EDT
Completed Not applicable Interventional Results available

Post-op Acetaminophen vs NSAID Use on Lumbar Spinal Fusion Outcomes

NCT02700451
View directory record Official record
Conditions
Lumbar Osteoarthritis, Spondylosis, Lumbar Disc Disease, Spinal Stenosis
Interventions
Ketorolac, Acetaminophen, Placebo
Drug
Lead sponsor
Hospital for Special Surgery, New York
Other
Eligibility
18 Years to 75 Years
Enrollment
178 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 10, 2023 · Synced Oct 19, 2026, 12:10 PM EDT
Completed No phase listed Observational

Impact of Opioid Avoidance Protocol for ACL Reconstruction

NCT06340932
View directory record Official record
Conditions
ACL Tear, Post Operative Pain
Interventions
Iovera, Celecoxib, Acetaminophen, Oxycodone, Tramadol, Bupivacaine Hydrochloride, Acetaminophen 500Mg Cap
Device · Drug
Lead sponsor
Matthew Varacallo
Other
Eligibility
15 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
DuBois, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 7, 2025 · Synced Oct 19, 2026, 12:10 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Determine the Clinical Advantage of IV vs PO Acetaminophen

NCT03558555
View directory record Official record
Conditions
Inguinal Hernia
Interventions
Acetaminophen IV Soln, Oral Acetaminophen, Placebo Pills, Saline
Drug
Lead sponsor
Yan Lai
Other
Eligibility
18 Years to 75 Years
Enrollment
103 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 10, 2020 · Synced Oct 19, 2026, 12:10 PM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

A Comparison of IV Versus PO Acetaminophen Postoperatively for Opioid Consumption After Cesarean Section

NCT04290208
View directory record Official record
Conditions
Postoperative Pain, Cesarean Section, Acetaminophen
Interventions
Acetaminophen, Placebos
Drug
Lead sponsor
Main Line Health
Other
Eligibility
18 Years and older · Female only
Enrollment
130 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Wynnewood, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 28, 2020 · Synced Oct 19, 2026, 12:10 PM EDT
Recruiting Phase 3 Interventional

Suzetrigine Frame Trial Comparing Suzetrigine and Acetaminophen

NCT07525219
View directory record Official record
Conditions
Analgesic Efficacy
Interventions
Suzetrigine, acetaminophen
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
21 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Oct 19, 2026, 12:10 PM EDT
Recruiting Phase 2 Interventional

NSAID Use After Robotic Partial Nephrectomy

NCT05842044
View directory record Official record
Conditions
Kidney Cancer, Renal Cancer, Renal Neoplasm
Interventions
Ketorolac, Acetaminophen, Oxycodone, Hydromorphone, Ibuprofen
Drug
Lead sponsor
University of Miami
Other
Eligibility
18 Years to 99 Years
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Sep 24, 2026 · Synced Oct 19, 2026, 12:10 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, 12:10 PM EDT
Completed Phase 4 Interventional

Minimizing Narcotic Analgesics After Endocrine Surgery

NCT03469310
View directory record Official record
Conditions
Thyroid Cancer, Thyroid Nodule, Thyroid Neoplasms, Thyroid Goitre, Thyroid Diseases, Parathyroid Diseases, Parathyroid Adenoma, Parathyroid Hyperplasia
Interventions
Acetaminophen 500Mg Cap, Tylenol #3 Oral Tablet, Tramadol
Drug
Lead sponsor
Minerva A Romero Arenas
Other
Eligibility
18 Years and older
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Edinburg, Texas
Source: ClinicalTrials.gov public record
Updated May 11, 2021 · Synced Oct 19, 2026, 12:10 PM EDT
Recruiting Phase 4 Interventional

Comparing Analgesic Regimen Effectiveness and Safety for Surgery for Kids Trial

NCT06671002
View directory record Official record
Conditions
Surgery, Pain, Post Operative
Interventions
NSAID, Opioid, Acetaminophen, Ibuprofen
Drug
Lead sponsor
University of Michigan
Other
Eligibility
12 Years to 20 Years
Enrollment
900 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
4
States / cities
Los Angeles, California • Palo Alto, California • Ann Arbor, Michigan + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 4, 2026 · Synced Oct 19, 2026, 12:10 PM EDT
Terminated Phase 4 Interventional Results available

Multi-dose Acetaminophen for Patients Undergoing General Anesthesia

NCT02832687
View directory record Official record
Conditions
Recovery Following Cholecystectomy
Interventions
Acetaminophen, normal saline
Drug
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years and older
Enrollment
88 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
3
States / cities
Newark, New Jersey • Brooklyn, New York
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Oct 19, 2026, 12:10 PM EDT
Not listed Phase 3 Interventional

Acetaminophen Given Per Os and Intravenous in Sinus Surgery

NCT03295214
View directory record Official record
Conditions
Acetaminophen
Interventions
Acetaminophen
Drug
Lead sponsor
Massachusetts Eye and Ear Infirmary
Other
Eligibility
18 Years and older
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 10, 2019 · Synced Oct 19, 2026, 12:10 PM EDT
Terminated Not applicable Interventional

Cooling Helmets to Decrease Concussion Symptoms

NCT05473897
View directory record Official record
Conditions
Concussion, Mild, TBI (Traumatic Brain Injury)
Interventions
Catalyst Cryohelmet
Device
Lead sponsor
Corewell Health South
Other
Eligibility
19 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Saint Joseph, Michigan
Source: ClinicalTrials.gov public record
Updated Nov 29, 2024 · Synced Oct 19, 2026, 12:10 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Assessing Efficacy of Intravenous Acetaminophen for Perioperative Pain Control for Oocyte Retrieval

NCT03073980
View directory record Official record
Conditions
Infertility, Female, Pain, Postoperative
Interventions
IV Acetaminophen, PO Acetaminophen, Placebo IV Acetaminophen, Placebo PO Acetaminophen
Drug · Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
161 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 26, 2022 · Synced Oct 19, 2026, 12:10 PM EDT
Terminated Phase 4 Interventional Results available

Low Pain Prediction in Cesarean Section Patients

NCT02143141
View directory record Official record
Conditions
Scheduled Cesarean Sections, Postoperative Pain Management, Side Effects
Interventions
duramorph, placebo
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older · Female only
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 10, 2018 · Synced Oct 19, 2026, 12:10 PM EDT