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ClinicalTrials.gov public records Last synced Oct 19, 2026, 10:42 PM EDT

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Showing 217–240 of 948 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: acetaminophen Clear all
Completed Not applicable Interventional Results available

Hypertension In Postpartum Preeclampsia Study

NCT03011567
View directory record Official record
Conditions
Hypertension, Pregnancy-Induced
Interventions
Acetaminophen, Ibuprofen
Drug
Lead sponsor
MemorialCare Health System
Other
Eligibility
18 Years and older · Female only
Enrollment
202 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Long Beach, California
Source: ClinicalTrials.gov public record
Updated Jan 3, 2024 · Synced Oct 19, 2026, 10:42 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, 10:42 PM EDT
Not listed Phase 3 Interventional

Efficacy of Myalgesin™ to Support Joint Function in Patients With Knee Osteoarthritis

NCT00577330
View directory record Official record
Conditions
Osteoarthritis
Interventions
Myalgesin™ (celery seed extract, Boswellia serrata extract, Phellodendron extract)
Dietary Supplement
Lead sponsor
ProThera, Inc.
Industry
Eligibility
50 Years and older
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Albany, New York
Source: ClinicalTrials.gov public record
Updated Dec 28, 2007 · Synced Oct 19, 2026, 10:42 PM EDT
Completed Not applicable Interventional Results available

Patient Education to Improve Pain Management in Older Adults With Acute Musculoskeletal Pain: A Pilot Randomized Trial

NCT02438384
View directory record Official record
Conditions
Musculoskeletal Pain
Interventions
Video, Phone follow-up
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
50 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 26, 2020 · Synced Oct 19, 2026, 10:42 PM EDT
Completed Not applicable Interventional Results available

Evaluation of Spine Surgery Analgesic Pathway

NCT02887404
View directory record Official record
Conditions
Posterior Spine Surgery
Interventions
Spine surgery analgesic pathway, Usual Care
Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years to 80 Years
Enrollment
299 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 6, 2021 · Synced Oct 19, 2026, 10:42 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, 10:42 PM EDT
Terminated Phase 3 Interventional

Acetaminophen vs Indomethacin in Treating hsPDA

NCT03537144
View directory record Official record
Conditions
Patent Ductus Arteriosus
Interventions
Indomethacin, Acetaminophen
Drug
Lead sponsor
University of Tennessee
Other
Eligibility
22 Weeks to 32 Weeks
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
3
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 3, 2019 · Synced Oct 19, 2026, 10:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Gum Chewing on Appetite and Digestion

NCT01070212
View directory record Official record
Conditions
The Null Hypothesis is That Food Rheology Will Have no Effect on These Indices, The Alternate Hypothesis is That Increased Mechanical Stimulation Will Result in Stronger Satiation/Satiety and Reduced Energy Intake, It is Hypothesized That the Effects of Mastication Will be Less Evident in Obese Compared to Lean Individuals
Interventions
soft gum, firm gum, no gum
Other
Lead sponsor
Purdue University
Other
Eligibility
18 Years to 50 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
2
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Dec 15, 2023 · Synced Oct 19, 2026, 10:42 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, 10:42 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effect of Testosterone Treatment on Drug Metabolism and Transport

NCT05116293
View directory record Official record
Conditions
Transgender Persons
Interventions
Midazolam oral solution, Digoxin Oral Tablet, Acetaminophen Oral Tablet
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 60 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Oct 19, 2026, 10:42 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Intra-Venous Acetaminophen and Muscle Relaxants After Total Knee

NCT02449369
View directory record Official record
Conditions
Unilateral Knee Arthroplasty
Interventions
Preop acetaminophen IV, Preop orphenadrine IV, Postop oral oxycodone & acetaminophen, Postop hydromorphone IV, Postop oral orphenadrine, Postop oral oxycodone, Postop acetaminophen IV, Postop orphenadrine IV
Drug
Lead sponsor
AdventHealth
Other
Eligibility
18 Years to 85 Years
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Winter Park, Florida
Source: ClinicalTrials.gov public record
Updated Aug 31, 2017 · Synced Oct 19, 2026, 10:42 PM EDT
Completed Phase 2 Interventional Results available

Phase 2 Chronic Low Back Pain Study

NCT01364922
View directory record Official record
Conditions
Chronic Low Back Pain
Interventions
hydrocodone/acetaminophen extended release, Placebo
Drug
Lead sponsor
AbbVie (prior sponsor, Abbott)
Industry
Eligibility
18 Years to 75 Years
Enrollment
168 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
17
States / cities
Tucson, Arizona • Anaheim, California • Burbank, California + 14 more
Source: ClinicalTrials.gov public record
Updated Jan 29, 2014 · Synced Oct 19, 2026, 10:42 PM EDT
Recruiting Phase 3 Interventional

Sacituzumab Tirumotecan (MK-2870) in Combination With Pembrolizumab Versus Pembrolizumab Alone in Metastatic Non-small Cell Lung Cancer (NSCLC) With Programmed Cell Death Ligand 1 (PD-L1) Tumor Proportion Score (TPS) ≥ 50% (MK-2870-007)

NCT06170788
View directory record Official record
Conditions
Non-small Cell Lung Cancer (NSCLC)
Interventions
Sacituzumab tirumotecan, Pembrolizumab, Supportive care measures
Biological · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
614 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2030
U.S. locations
15
States / cities
Phoenix, Arizona • Burbank, California • Grand Junction, Colorado + 12 more
Source: ClinicalTrials.gov public record
Updated Oct 15, 2026 · Synced Oct 19, 2026, 10:42 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Phase 2 Study to Evaluate Pregabalin and Acetaminophen Compared to Acetaminophen and Placebo in Subjects Undergoing Bunionectomy

NCT04495283
View directory record Official record
Conditions
Postoperative Pain
Interventions
Pregabalin, Acetaminophen, Placebo 1, Placebo 2
Drug · Other
Lead sponsor
Nevakar, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
87 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
2
States / cities
Pasadena, California • Bellaire, Texas
Source: ClinicalTrials.gov public record
Updated Nov 23, 2021 · Synced Oct 19, 2026, 10:42 PM EDT
Recruiting Not applicable Interventional

Feasibility, Usability and Preliminary Efficacy of Home-based FES Fro Adhesive Capsulitis

NCT07227662
View directory record Official record
Conditions
Shoulder Adhesive Capsulitis
Interventions
Home based FES in combination with usual therapy
Device
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 25, 2026 · Synced Oct 19, 2026, 10:42 PM 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 19, 2026, 10:42 PM EDT
Completed Phase 1 Interventional

Combination of Acetaminophen and Ibuprofen in the Management of Patent Ductus Arteriosus

NCT03103022
View directory record Official record
Conditions
Patent Ductus Arteriosus, Neonate
Interventions
Acetaminophen, ibuprofen
Drug
Lead sponsor
University of Florida
Other
Eligibility
23 Weeks to 30 Weeks
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
2
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 31, 2020 · Synced Oct 19, 2026, 10:42 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, 10:42 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacokinetics and Bioequivalence of Vycavert (10 mg Hydrocodone Bitartrate/325 mg Acetaminophen) Compared to the Reference Drug Norco

NCT01456520
View directory record Official record
Conditions
Healthy
Interventions
Vycavert, Norco
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 55 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 8, 2012 · Synced Oct 19, 2026, 10:42 PM EDT
Active, not recruiting Phase 4 Interventional

Post-cesarean Analgesia: Comparing Effectiveness of Staggered v. Simultaneous Therapies

NCT07102641
View directory record Official record
Conditions
Cesarean Delivery, Postpartum Comfort, Postpartum Pain, Post-operative Pain, NSAIDs, Acetaminophen (D000082)
Interventions
Acetaminophen, NSAID (Ketorolac/Ibuprofen)
Drug
Lead sponsor
Thomas Jefferson University
Other
Eligibility
16 Years and older · Female only
Enrollment
825 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Oct 19, 2026, 10:42 PM EDT
Recruiting Phase 2 Interventional

A Study to Investigate Subcutaneous Isatuximab in Combination With Weekly Carfilzomib and Dexamethasone in Adult Participants With Relapsed and/or Refractory Multiple Myeloma

NCT06356571
View directory record Official record
Conditions
Plasma Cell Myeloma Refractory
Interventions
Isatuximab SC-OBDS, Montelukast, Dexamethasone, Acetaminophen, Diphenhydramine, Methylprednisolone, Carfilzomib
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years and older
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
34
States / cities
Phoenix, Arizona • Los Angeles, California • West Hollywood, California + 29 more
Source: ClinicalTrials.gov public record
Updated Feb 23, 2026 · Synced Oct 19, 2026, 10:42 PM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

The Effectiveness of IV/PO Acetaminophen in the Perioperative Period in Reducing Opiate Use After Lumbar Spine Fusion

NCT03104816
View directory record Official record
Conditions
Fusion of Spine, Lumbar Region
Interventions
Acetaminophen IV Soln 10 MG/ML, Acetaminophen, Hydromorphone
Drug
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 8, 2019 · Synced Oct 19, 2026, 10:42 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, 10:42 PM EDT
Withdrawn Phase 2Phase 3 Interventional

Opioid-Free Pain Control Regiment Following Robotic Radical Prostatectomy

NCT04939987
View directory record Official record
Conditions
Radical Prostatectomies
Interventions
Tramadol, Gabapentin, Hydrocodone-Acetaminophen, Oxycodone-Acetaminophen, Ketorolac, Acetaminophen, Ketorolac tromethamine, Ketamine
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
40 Years to 75 Years · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 6, 2022 · Synced Oct 19, 2026, 10:42 PM EDT