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ClinicalTrials.gov public records Last synced Oct 30, 2026, 3:17 AM EDT

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Showing 817–840 of 947 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: acetominophen Clear all
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

A Study to Learn About the Effect of Study Medicine Called PF-08653944 on How Quickly the Stomach Empties Its Content in Healthy Adults With Overweight or Obesity

NCT07508241
View directory record Official record
Conditions
Obesity, Overweight and/or Obesity, Overweight, Drug Interaction
Interventions
PF-08653944, Acetaminophen
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Oct 30, 2026, 3:17 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Effect of Intravenous Acetaminophen on Postoperative Opioid-related Complications

NCT02156154
View directory record Official record
Conditions
Postoperative Pain
Interventions
Intravenous Acetaminophen
Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years to 85 Years
Enrollment
580 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2020
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 20, 2021 · Synced Oct 30, 2026, 3:17 AM EDT
Active, not recruiting Phase 3 Interventional

Sacituzumab Tirumotecan (MK-2870) Versus Pemetrexed and Carboplatin Combination Therapy in Participants With Epidermal Growth Factor (EGFR)-Mutated, Advanced Nonsquamous Non-small Cell Lung Cancer (NSCLC) Who Have Progressed on Prior EGFR Tyrosine Kinase Inhibitors (MK-2870-009)

NCT06305754
View directory record Official record
Conditions
Non-small Cell Lung Cancer (NSCLC)
Interventions
Sacituzumab tirumotecan, Pemetrexed, Carboplatin, H1 Receptor Antagonist, H2 Receptor Antagonist, Acetaminophen (or equivalent), Dexamethasone (or equivalent), Steroid Mouthwash (dexamethasone or equivalent)
Biological · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
550 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2030
U.S. locations
17
States / cities
Oakland, California • Roseville, California • San Francisco, California + 13 more
Source: ClinicalTrials.gov public record
Updated Sep 11, 2026 · Synced Oct 30, 2026, 3:17 AM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

Subcutaneous Bupivacaine Decrease Post-op Pain in Patients Undergoing C-Section

NCT03383588
View directory record Official record
Conditions
Pain, Referred
Interventions
Bupivacaine, Morphine, Fentanyl, Epinephrine, Saline solution
Drug · Other
Lead sponsor
Montefiore Medical Center
Other
Eligibility
17 Years to 40 Years · Female only
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Jan 13, 2020 · Synced Oct 30, 2026, 3:17 AM EDT
Not yet recruiting Phase 4 Interventional Accepts healthy volunteers

Suzetrigine Following Urogynecologic Surgery: Investigation of Postoperative Pain Management

NCT07856654
View directory record Official record
Conditions
Pelvic Organ Prolapse (POP), Postoperative Pain, Urogynecology
Interventions
Suzetrigine, Placebo
Drug
Lead sponsor
Aditi Talkad
Other
Eligibility
40 Years to 80 Years · Female only
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Oct 2, 2026 · Synced Oct 30, 2026, 3:17 AM EDT
Terminated Not applicable Interventional

Pudendal vs Caudal Block for Pediatric Penile Surgery

NCT04840654
View directory record Official record
Conditions
Postoperative Pain
Interventions
Caudal Block, Pudendal Block
Procedure
Lead sponsor
University of Chicago
Other
Eligibility
6 Months to 3 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 24, 2025 · Synced Oct 30, 2026, 3:17 AM EDT
Completed Phase 3 Interventional

Study of Acetaminophen (ACM) in Post-operative Dental Pain

NCT02735122
View directory record Official record
Conditions
Post Operative Dental Pain
Interventions
acetaminophen Tablet, acetaminophen Caplet, ibuprofen Liquid-filled capsule, Placebo Tablet, Placebo Caplet, Placebo Liquid-filled capsule
Drug
Lead sponsor
Johnson & Johnson Consumer Inc., McNeil Consumer Healthcare Division
Industry
Eligibility
17 Years to 50 Years
Enrollment
420 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Sep 28, 2022 · Synced Oct 30, 2026, 3:17 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Opiates and Benzodiazepines on Driving

NCT03447353
View directory record Official record
Conditions
Driving Behavior
Interventions
Xanax 1Mg Tablet, Norco 10Mg-325Mg Tablet, Placebo Oral Tablet
Drug
Lead sponsor
Timothy L. Brown
Other
Eligibility
18 Years to 40 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Sep 27, 2018 · Synced Oct 30, 2026, 3:17 AM EDT
Recruiting Phase 2 Interventional

Optimizing Ancillary Therapies With Immune Checkpoint Inhibitors for Solid Tumors (OAT ICI)

NCT07661459
View directory record Official record
Conditions
Solid Tumors
Interventions
Asprin, Loratadine, Acetaminophen Avoidance, THC Avoidance
Drug · Behavioral
Lead sponsor
Val Adams
Other
Eligibility
18 Years to 99 Years
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Aug 14, 2026 · Synced Oct 30, 2026, 3:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect on Acetaminophen Metabolism by Liquid Formulations

NCT01246713
View directory record Official record
Conditions
Acetaminophen Metabolism, Acetaminophen Poisoning, Drug Metabolism by Excipients
Interventions
Acetaminophen liquid formulation, Acetaminophen solid formulation
Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 40 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 8, 2017 · Synced Oct 30, 2026, 3:17 AM EDT
Completed Not applicable Interventional

Conditioned Open-label Placebo (COLP) for Peri-operative Pain Management in Patients With Head and Neck Cancer

NCT04973748
View directory record Official record
Conditions
Postoperative Pain, Opioid Use
Interventions
Conditioned open-label placebo (COLP), Surveys about pain, opioid use and depression symptoms
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 23, 2024 · Synced Oct 30, 2026, 3:17 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Abuse Potential of Intranasal VYCAVERT Tablets (Hydrocodone Bitartrate/Acetaminophen) in Recreational Opioid Users

NCT01759446
View directory record Official record
Conditions
Opioid-Related Disorders
Interventions
Placebo taken first, Generic H/A taken first, Vycavert taken first, Generic H/A plus i taken first, Generic H/A plus p taken first
Drug
Lead sponsor
Acura Pharmaceuticals Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Nov 1, 2018 · Synced Oct 30, 2026, 3:17 AM EDT
Completed Phase 3 Interventional Results available

A Controlled Study to Determine the Efficacy and Safety of CL-108 5 mg for Acute Pain and the Prevention of OINV

NCT03657810
View directory record Official record
Conditions
Pain, Nausea, Vomiting
Interventions
CL-108 5 mg, Norco, Placebo
Drug
Lead sponsor
Charleston Laboratories, Inc
Industry
Eligibility
18 Years and older
Enrollment
349 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
5
States / cities
Phoenix, Arizona • Pasadena, Maryland • Austin, Texas + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 22, 2023 · Synced Oct 30, 2026, 3:17 AM 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 30, 2026, 3:17 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Post-operative Pain Control After Photorefractive Keratectomy Comparing Acetaminophen/Codeine vs Acetaminophen/Oxycodone

NCT04399122
View directory record Official record
Conditions
Post-operative Pain Control
Interventions
acetaminophen/codeine vs acetaminophen/oxycodone
Drug
Lead sponsor
59th Medical Wing
Federal
Eligibility
21 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Oct 5, 2021 · Synced Oct 30, 2026, 3:17 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

A2ALL-Patients Safety System Improvements in Living Donor Liver Transplantation

NCT02073435
View directory record Official record
Conditions
Liver Diseases, Hepatocellular Cancer, Endstage Liver Disease, Liver Cirrhosis
Interventions
Donor pain management
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
21 Years to 60 Years
Enrollment
177 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2018
U.S. locations
4
States / cities
Chicago, Illinois • Burlington, Massachusetts • New York, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 5, 2018 · Synced Oct 30, 2026, 3:17 AM EDT
Recruiting Not applicable Interventional

Percutaneous Intervention Versus Observational Trial of Arterial Ductus in Low Weight Infants

NCT05547165
View directory record Official record
Conditions
Ductus Arteriosus, Patent
Interventions
Percutaneous Patent Ductus Arteriosus Closure (PPC), Responsive Management Intervention, Echocardiogram, cardiac
Device · Combination Product · Diagnostic Test
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
7 Days to 32 Days
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
24
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Los Angeles, California + 19 more
Source: ClinicalTrials.gov public record
Updated Mar 30, 2025 · Synced Oct 30, 2026, 3:17 AM EDT
Completed Phase 2 Interventional Results available

Acute Pain Study Following Bunionectomy

NCT01333722
View directory record Official record
Conditions
Pain
Interventions
Hydrocodone/Acetaminophen Extended Release, Placebo
Drug
Lead sponsor
AbbVie (prior sponsor, Abbott)
Industry
Eligibility
18 Years to 75 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
3
States / cities
Pasadena, California • Austin, Texas • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 8, 2014 · Synced Oct 30, 2026, 3:17 AM EDT
Completed Not applicable Interventional

The Impact of Ear Pain Anticipatory Guidance Counseling on Otitis Related Visits in a Low Income Population

NCT02616458
View directory record Official record
Conditions
Otitis Media
Interventions
ear pain counseling, language power counseling
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
12 Months to 15 Months
Enrollment
310 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Dec 2, 2015 · Synced Oct 30, 2026, 3:17 AM EDT
Not listed Phase 4 Interventional

Randomized Trial of Narcotic vs Non-Narcotic Pain Modulation After Labrum Repair

NCT05974423
View directory record Official record
Conditions
Postoperative Pain, Acute, Opioid Use, Labral Tear, Glenoid
Interventions
Tylenol, Ibuprofen, and Oxycodone, Tylenol and Ibuprofen only
Drug
Lead sponsor
The Cooper Health System
Other
Eligibility
15 Years to 25 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Camden, New Jersey
Source: ClinicalTrials.gov public record
Updated Aug 3, 2023 · Synced Oct 30, 2026, 3:17 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 21, 2023 · Synced Oct 30, 2026, 3:17 AM EDT
Active, not recruiting Phase 4 Interventional

Biofreeze® vs. a Placebo on Chronic Low Back Pain Walking Gait Characteristics and Pain

NCT03888820
View directory record Official record
Conditions
Chronic Low Back Pain
Interventions
Biofreeze, Placebo
Drug
Lead sponsor
Sport and Spine Rehab Clinical Research Foundation
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Rockville, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 25, 2019 · Synced Oct 30, 2026, 3:17 AM EDT
Completed Phase 4 Interventional Results available

Multimodal Analgesia With Acetaminophen vs. Narcotics Alone After Hip Arthroscopy

NCT03510910
View directory record Official record
Conditions
Hip Arthroscopy
Interventions
Acetaminophen, Percocet
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 7, 2021 · Synced Oct 30, 2026, 3:17 AM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy Study of Fentanyl Buccal Tablet Use in the Emergency Department for Isolated Extremity Injury

NCT01270659
View directory record Official record
Conditions
Pain
Interventions
Fentanyl, oxycodone/acetaminophen
Drug
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 60 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Tulsa, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jun 20, 2017 · Synced Oct 30, 2026, 3:17 AM EDT