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ClinicalTrials.gov public records Last synced Oct 4, 2026, 1:18 PM EDT

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Showing 49–72 of 127 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: 1000 mg acetaminophen Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Effects of Hydromorphone on Responses to Verbal Tasks

NCT02205983
View directory record Official record
Conditions
Healthy
Interventions
2 mg hydromorphone, 1000 mg Acetaminophen, 4 mg hydromorphone, dextrose
Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 40 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 9, 2018 · Synced Oct 4, 2026, 1:18 PM EDT
Active, not recruiting Phase 2 Interventional

Pembrolizumab (MK-3475) Plus Investigational Agents in Resectable Non-small Cell Lung Cancer (NSCLC) (MK-3475-01E/KEYMAKER-U01)

NCT06788912
View directory record Official record
Conditions
Lung Neoplasm Malignant
Interventions
Pembrolizumab (neoadjuvant), Cisplatin, Gemcitabine, Pemetrexed, Sacituzumab tirumotecan, H1 receptor antagonist, H2 receptor antagonist, Acetaminophen (or equivalent), Dexamethasone (or equivalent), Carboplatin, Pembrolizumab (adjuvant), Paclitaxel, Steroid mouthwash (dexamethasone or equivalent)
Biological · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2032
U.S. locations
9
States / cities
Daphne, Alabama • Santa Barbara, California • Lone Tree, Colorado + 5 more
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Oct 4, 2026, 1:18 PM EDT
Completed Phase 3 Interventional Results available

Maxigesic® IV Phase 3 Exposure Study

NCT04005755
View directory record Official record
Conditions
Postoperative Pain
Interventions
Maxigesic® IV
Drug
Lead sponsor
AFT Pharmaceuticals, Ltd.
Industry
Eligibility
18 Years and older
Enrollment
232 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
2
States / cities
Pasadena, Maryland • Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 1, 2021 · Synced Oct 4, 2026, 1:18 PM EDT
Recruiting Phase 2 Interventional

A Vaccine Trial for Low Grade Gliomas

NCT02358187
View directory record Official record
Conditions
Low Grade Glioma
Interventions
Experimental: HLA-A2 Restricted Glioma Antigen-Peptides with Poly-ICLC
Biological
Lead sponsor
James Felker
Other
Eligibility
12 Months to 21 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2028
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 7, 2026 · Synced Oct 4, 2026, 1:18 PM EDT
Completed Phase 4 Interventional Results available

Study of KRYSTEXXA® (Pegloticase) Plus Methotrexate in Participants With Uncontrolled Gout

NCT03994731
View directory record Official record
Conditions
Gout
Interventions
Pegloticase, methotrexate, placebo, folic acid, gout flare prophylaxis regimen, fexofenadine, acetaminophen, methylprednisolone
Biological · Drug · Dietary Supplement
Lead sponsor
Amgen
Industry
Eligibility
18 Years and older
Enrollment
152 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
60
States / cities
Birmingham, Alabama • Anchorage, Alaska • Flagstaff, Arizona + 54 more
Source: ClinicalTrials.gov public record
Updated Jun 26, 2024 · Synced Oct 4, 2026, 1:18 PM EDT
Completed Phase 4 Interventional Results available

Intravenous Acetaminophen in Craniotomy

NCT01598701
View directory record Official record
Conditions
Postoperative Pain
Interventions
Acetaminophen, Placebo
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 120 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 19, 2018 · Synced Oct 4, 2026, 1:18 PM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

Journavx to Treat Pain After Thumb Basal Joint Arthroplasty

NCT07723352
View directory record Official record
Conditions
Thumb Basal Joint Osteoarthritis, Postoperative Pain, Joint Replacement Surgery, Joint Replacement
Interventions
suzetrigine 100mg, Acetaminophen
Drug
Lead sponsor
Rothman Institute Orthopaedics
Other
Eligibility
40 Years to 80 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 23, 2026 · Synced Oct 4, 2026, 1:18 PM EDT
Completed Phase 4 Interventional Results available

Ketamine for Acute Pain Management After Trauma

NCT04129086
View directory record Official record
Conditions
Trauma Injury, Pain, Opioid Use
Interventions
Ketamine plus usual care, Usual Care
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
16 Years and older
Enrollment
305 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 21, 2023 · Synced Oct 4, 2026, 1:18 PM EDT
Completed Phase 4 Interventional Results available

OTC Naproxen and Acetaminophen Anti-Inflammatory Action in Dental Implant Patients

NCT04694300
View directory record Official record
Conditions
Osseointegrated Dental Implantation, Pain, Acute
Interventions
Naproxen, Acetaminophen, Tramadol
Drug
Lead sponsor
Hersh, Elliot V., DMD, MS, PhD
Individual
Eligibility
18 Years to 75 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 16, 2024 · Synced Oct 4, 2026, 1:18 PM EDT
Completed Phase 4 Interventional Results available

Study of Pegloticase (KRYSTEXXA®) Plus Methotrexate in Patients With Uncontrolled Gout

NCT03635957
View directory record Official record
Conditions
Gout
Interventions
Pegloticase, Methotrexate (MTX), Standard Gout Flare Prophylaxis, Infusion Reaction (IR) Prophylaxis, Folic Acid
Biological · Drug · Dietary Supplement
Lead sponsor
Amgen
Industry
Eligibility
18 Years to 65 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
6
States / cities
Anchorage, Alaska • Glendale, Arizona • Mesa, Arizona + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 26, 2024 · Synced Oct 4, 2026, 1:18 PM EDT
Recruiting Phase 4 Interventional

Comparing Analgesic Regimen Effectiveness and Safety for Surgery (CARES) Trial

NCT05722002
View directory record Official record
Conditions
Surgery, Pain, Postoperative
Interventions
NSAID, Opioid, Acetaminophen
Drug
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
900 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
6
States / cities
Ann Arbor, Michigan • Detroit, Michigan • St Louis, Missouri + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 28, 2026 · Synced Oct 4, 2026, 1:18 PM EDT
Completed Phase 2 Interventional Results available

Comparing Five Oral Analgesics for Treatment of Acute Pain in the Emergency Department (ED)

NCT03173456
View directory record Official record
Conditions
Musculoskeletal Pain
Interventions
oxycodone/APAP, hydrocodone/APAP, codeine/APAP, 400 ibuprofen/APAP, 800 ibuprofen/APAP
Drug
Lead sponsor
Albert Einstein College of Medicine
Other
Eligibility
21 Years to 64 Years
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Feb 1, 2022 · Synced Oct 4, 2026, 1:18 PM EDT
Completed Phase 2 Interventional Results available

KEYMAKER-U01 Substudy 3: Efficacy and Safety Study of Pembrolizumab (MK-3475) When Used With Investigational Agents in Participants With Advanced Non-small Cell Lung Cancer (NSCLC), Previously Treated With Anti-programmed Cell Death Receptor Ligand 1 (PD-L1) Therapy (MK-3475-01C/KEYMAKER-U01C)

NCT04165096
View directory record Official record
Conditions
Carcinoma, Non-Small-Cell Lung
Interventions
Pembrolizumab, Boserolimab, MK-4830, diphenhydramine, acetaminophen, MK-0482
Biological · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
128 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
18
States / cities
Gilbert, Arizona • Duarte, California • San Francisco, California + 14 more
Source: ClinicalTrials.gov public record
Updated Jun 26, 2026 · Synced Oct 4, 2026, 1:18 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 4, 2026, 1:18 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 4, 2026, 1:18 PM EDT
Completed Not applicable Interventional

The Effect of Prolonged Multimodal Analgesic Regimen on Post Hospital Discharge Opioid Use and Pain Control After Primary Total Knee Arthroplasty

NCT04003350
View directory record Official record
Conditions
Osteo Arthritis Knee
Interventions
Oxycodone, Tramadol, Tylenol, Meloxicam, Gabapentin, Metaxalone, Esomeprazole 20mg
Drug
Lead sponsor
Rothman Institute Orthopaedics
Other
Eligibility
18 Years and older
Enrollment
216 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 1, 2019 · Synced Oct 4, 2026, 1:18 PM EDT
Completed No phase listed Observational

Opiate Free Multimodal Pain Pathway in Elective Foot and Ankle Surgery: A Prospective Study

NCT04771741
View directory record Official record
Conditions
Bunion of Unspecified Foot, Bunionette of Unspecified Foot, Hammertoe, Ankle Fractures, Achilles Tendon Surgery
Interventions
Acetominophen, Toradol, Meloxicam, Cyclobenzaprine, Lyrica
Drug
Lead sponsor
Prisma Health-Midlands
Other
Eligibility
18 Years to 99 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 27, 2023 · Synced Oct 4, 2026, 1:18 PM EDT
Completed Phase 4 Interventional Results available

Nonopioid Pain Control Regimen After Arthroscopic Hip Procedures

NCT05076110
View directory record Official record
Conditions
Hip Arthroscopy
Interventions
Oxycodone, Ibuprofen, Gabapentin, Acetaminophen, Methocarbamol
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
16 Years and older
Enrollment
86 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Oct 4, 2026, 1:18 PM EDT
Completed Phase 2 Interventional Results available

Study in Subjects Undergoing Complete Abdominoplasty

NCT03789318
View directory record Official record
Conditions
Postsurgical Pain
Interventions
CA-008 5 mg, Placebo, Bupivacaine Hydrochloride, Hydromorphone, Fentanyl, Acetaminophen, Oxycodone, CA-008 10 mg, CA-008 15 mg
Drug
Lead sponsor
Concentric Analgesics
Industry
Eligibility
18 Years to 65 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Pasadena, California
Source: ClinicalTrials.gov public record
Updated Mar 19, 2024 · Synced Oct 4, 2026, 1:18 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Phase 1/2 Study of Motolimod, Doxorubicin, and Durvalumab in Recurrent, Platinum-Resistant Ovarian Cancer

NCT02431559
View directory record Official record
Conditions
Ovarian Cancer
Interventions
Durvalumab, Pegylated Liposomal Doxorubicin, Motolimod
Drug
Lead sponsor
Ludwig Institute for Cancer Research
Other
Eligibility
18 Years and older · Female only
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
4
States / cities
Phoenix, Arizona • New York, New York • Hilliard, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 10, 2022 · Synced Oct 4, 2026, 1:18 PM EDT
Completed Phase 3 Interventional Results available

Ibuprofen/Acetaminophen Versus Nurofen Plus® and Panadeine® Extra Dental Pain Study

NCT01229449
View directory record Official record
Conditions
Post-operative Pain
Interventions
Ibuprofen/acetaminophen, Ibuprofen/acetaminophen (higher dose), Nurofen Plus®, Panadeine® Extra, Placebo
Drug
Lead sponsor
Reckitt Benckiser LLC
Industry
Eligibility
16 Years and older
Enrollment
678 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Sep 17, 2018 · Synced Oct 4, 2026, 1:18 PM EDT
Completed Phase 3 Interventional Results available

Randomized, Double-Blind, Single-Dose, Efficacy and Safety Study of Test Acetaminophen Tablet in Postoperative Dental Pain

NCT03224403
View directory record Official record
Conditions
Post-operative Dental Pain
Interventions
Test acetaminophen, Commercial acetaminophen, Commercial ibuprofen, Placebo
Drug
Lead sponsor
Johnson & Johnson Consumer Inc., McNeil Consumer Healthcare Division
Industry
Eligibility
17 Years to 50 Years
Enrollment
664 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 15, 2021 · Synced Oct 4, 2026, 1:18 PM EDT
Completed Phase 4 Interventional Results available

Intravenous Versus Oral Acetaminophen in Primary Total Hip Arthroplasty

NCT02839876
View directory record Official record
Conditions
Osteoarthritis, Acetaminophen, Arthroplasty, Hip Replacement
Interventions
Intravenous acetaminophen, Oral acetaminophen
Drug
Lead sponsor
Duke University
Other
Eligibility
56 Years to 85 Years
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 9, 2021 · Synced Oct 4, 2026, 1:18 PM EDT
Completed Phase 2 Interventional

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

NCT02320708
View directory record Official record
Conditions
Dental Pain
Interventions
Acetaminophen (ACE) (1000 mg), Commercial ACE (1000 mg), Commercial Ibuprofen (IBU) (400 mg), Placebo
Drug
Lead sponsor
Johnson & Johnson Healthcare Products Division of McNEIL-PPC, Inc.
Industry
Eligibility
17 Years to 50 Years
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Dec 3, 2021 · Synced Oct 4, 2026, 1:18 PM EDT