Independent directory Public ClinicalTrials.gov records United States
Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 14, 2026, 12:17 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 385–408 of 948 matching trials from the live ClinicalTrials.gov search.
Conditions
Tonsillectomy, Adenoidectomy
Interventions
Acetaminophen
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
3 Years to 17 Years
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Sacramento, California
Conditions
Pain, Postoperative
Interventions
Ibuprofen, Acetominophen
Drug
Lead sponsor
Boston University
Other
Eligibility
4 Years to 6 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Brighton, Massachusetts
Completed Not applicable Interventional Accepts healthy volunteers Results available

Acetaminophen and Impaired Musculoskeletal Adaptations to Exercise Training

NCT01083901
Conditions
Sarcopenia, Osteoporosis, Aging
Interventions
Resistance training
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
50 Years and older · Male only
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2011
U.S. locations
1
States / cities
Aurora, Colorado
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
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
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
Conditions
Fracture Dislocation of Ankle Joint, Fracture Leg, Fracture Femur, Fracture Lower Leg, Fracture
Interventions
Bupivacaine, Exparel + Bupivacaine
Drug
Lead sponsor
George Washington University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Completed Phase 4 Interventional Accepts healthy volunteers

Acetaminophen IV vs Hydromorphone IV in the ED

NCT03107481
Conditions
Pain, Acute
Interventions
Acetaminophen, Hydromorphone
Drug
Lead sponsor
Montefiore Medical Center
Other
Eligibility
21 Years to 64 Years
Enrollment
220 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
The Bronx, New York
Conditions
Fever
Interventions
Intravenous acetaminophen plus oral placebo, Oral acetaminophen plus IV placebo, Reference standard endotoxin (RSE)
Drug · Biological
Lead sponsor
Mallinckrodt
Industry
Eligibility
18 Years to 75 Years · Male only
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Knoxville, Tennessee
Conditions
Cervical Cancer
Interventions
Pembrolizumab, Sacituzumab Tirumotecan, Bevacizumab, Paclitaxel, Cisplatin, Carboplatin, Rescue Medications
Biological · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older · Female only
Enrollment
1,023 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
30
States / cities
Birmingham, Alabama • Anchorage, Alaska • Irvine, California + 25 more
Conditions
Opioid Tapering
Interventions
Treatment as Usual (TAU), Telephonic Support (TS) Providers, DOTS Intervention
Other
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
The Bronx, New York
Completed Phase 2 Interventional Results available

Acute Pain Study Following Bunionectomy

NCT01333722
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
Not yet recruiting Phase 2 Interventional

Jaw Muscle Pain Post Wisdom Molar Surgery

NCT07094542
Conditions
Post Operative Pain, Impacted Third Molar Tooth, Muscle Pain
Interventions
Temporo-masseteric Nerve Block Injection, Oral Pain Medications only
Drug
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Newark, New Jersey
Conditions
Pain
Interventions
FDC IBU/APAP 250 mg/500 mg, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 40 Years
Enrollment
123 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Salt Lake City, Utah
Not listed Not applicable Interventional Accepts healthy volunteers

Impact of Probiotics on Drug, Vitamin, and Hormone Metabolism

NCT04281407
Conditions
Metabolism
Interventions
Visbiome
Dietary Supplement
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 40 Years · Male only
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Seattle, Washington
Conditions
Subarachnoid Hemorrhage, Stroke
Interventions
IV acetaminophen, Oral acetaminophen, Oral placebo, IV placebo
Drug
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Hershey, Pennsylvania
Conditions
Clinical Pharmacology
Interventions
Loratadine + Pseudoephedrine sulfate (Claritin-D, BAY818725) (Manufacturer-SAG), Loratadine + Pseudoephedrine sulfate (Claritin-D, BAY818725) (Manufacturer-Heist)
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 55 Years
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Secaucus, New Jersey
Conditions
Dental Pain
Interventions
Acetaminophen ER, Placebo
Drug
Lead sponsor
McNeil Consumer Healthcare Division of McNEIL-PPC, Inc.
Industry
Eligibility
17 Years to 45 Years
Enrollment
403 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Salt Lake City, Utah
Conditions
Graft vs. Host Disease
Interventions
Obinutuzumab, Placebo
Drug
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
181 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2024
U.S. locations
5
States / cities
Palo Alto, California • Boston, Massachusetts • Minneapolis, Minnesota + 1 more
Conditions
Pain
Interventions
Paracetamol and Caffeine, Ibuprofen, Placebo
Drug · Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 65 Years
Enrollment
365 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Waltham, Massachusetts
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Aminotransferase Trends During Prolonged Acetaminophen Dosing

NCT00743093
Conditions
Drug Toxicity, Healthy
Interventions
acetaminophen, placebo
Drug
Lead sponsor
Denver Health and Hospital Authority
Other
Eligibility
18 Years and older
Enrollment
398 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
2
States / cities
Aurora, Colorado • Denver, Colorado
Conditions
Postoperative Pain, Acute Pain, Skin Cancer, Cutaneous Malignancy, Mohs Surgery
Interventions
Suzetrigine, Acetaminophen Plus Ibuprofen
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
230 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2029
U.S. locations
3
States / cities
Maple Grove, Minnesota • Minneapolis, Minnesota • Wyoming, Minnesota
Conditions
Pain
Interventions
Hydrocodone/Acetaminophen Extended Release, Placebo
Drug
Lead sponsor
Abbott
Industry
Eligibility
18 Years to 65 Years
Enrollment
210 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2004
U.S. locations
4
States / cities
Owing Mills, Maryland • Austin, Texas • San Marcos, Texas + 1 more
Conditions
Pain, Hernia
Interventions
Ibuprofen, Opioid Medication, Placebo, Ibuprofen + Opioid medication
Drug
Lead sponsor
Mike O'Callaghan Military Hospital
Federal
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Nellis Air Force Base, Nevada