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ClinicalTrials.gov public records Last synced Oct 20, 2026, 5:27 AM EDT

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Showing 721–744 of 948 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Acetaminophen Clear all
Completed Phase 1 Interventional

Transfer of Infection Fighting Immune Cells Generated in the Laboratory to High Risk Patients With COVID-19 Infection

NCT04765449
View directory record Official record
Conditions
Covid19
Interventions
Cytotoxic T Lymphocytes
Drug
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 29, 2025 · Synced Oct 20, 2026, 5:27 AM EDT
Completed Phase 4 Interventional Results available

Gabapentin for Pain Control After Osmotic Dilator Insertion and Prior to D&E Procedure: a Randomized Controlled Trial

NCT03080493
View directory record Official record
Conditions
Abortion, Induced, Cervical Preparation, Pain
Interventions
Gabapentin 600mg, Placebo oral capsule, acetaminophen/codeine and ibuprofen
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older · Female only
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Apr 14, 2020 · Synced Oct 20, 2026, 5:27 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 20, 2026, 5:27 AM EDT
Recruiting Phase 3 Interventional

Opioid-Sparing Joint Replacement

NCT07348627
View directory record Official record
Conditions
Pain Management, Opioid Consumption
Interventions
Placebo, Oxycodone 5 mg, Multimodal Non-Opioid Analgesia
Drug · Other
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Apr 17, 2026 · Synced Oct 20, 2026, 5:27 AM EDT
Completed Phase 4 Interventional Results available

Efficacy of IV Acetaminophen Versus Oral Acetaminophen

NCT03365622
View directory record Official record
Conditions
Nephrectomy
Interventions
Acetaminophen, Placebos, Placebo Oral Tablet
Drug
Lead sponsor
University of Rochester
Other
Eligibility
18 Years to 89 Years
Enrollment
214 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jun 29, 2025 · Synced Oct 20, 2026, 5:27 AM EDT
Completed Phase 3 Interventional Results available

Evaluation of Efficacy and Safety of VX-548 for Acute Pain After a Bunionectomy

NCT05553366
View directory record Official record
Conditions
Acute Pain
Interventions
SUZ, HB/APAP, Placebo (matched to SUZ), Placebo (matched to HB/APAP)
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years to 80 Years
Enrollment
1,075 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
21
States / cities
Sheffield, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 18 more
Source: ClinicalTrials.gov public record
Updated Aug 1, 2025 · Synced Oct 20, 2026, 5:27 AM EDT
Completed Phase 4 Interventional Results available

MAST Trial: Multi-modal Analgesic Strategies in Trauma

NCT03472469
View directory record Official record
Conditions
Nonspecific Pain Post Traumatic Injury
Interventions
Acetaminophen IV/PO, Acetaminophen PO, Ketorolac, Celebrex, Naproxen, Tramadol, Pregabalin, Gabapentin, Lidocaine, Opioids, Regional anesthesia
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
16 Years and older
Enrollment
1,561 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 18, 2021 · Synced Oct 20, 2026, 5:27 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Learn How Well a Single Dose of the Study Treatment Naproxen Sodium and Caffeine Combined in One Tablet (Fixed-dose Combination) Works to Relieve Pain After Dental Surgeries Compared to the Single Ingredients and to Placebo

NCT05485805
View directory record Official record
Conditions
Postoperative Dental Pain
Interventions
Naproxen sodium and caffeine (BAY2880376), Naproxen sodium (Aleve), Caffeine, Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
16 Years and older
Enrollment
541 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Mar 25, 2025 · Synced Oct 20, 2026, 5:27 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Feasibility Study: Compare the Effectiveness Between Two Pain Medications When Used Prior to Ultherapy™ Treatments

NCT01708473
View directory record Official record
Conditions
Skin Laxity
Interventions
Advil, Lortab, Ulthera System Treatment
Drug · Device
Lead sponsor
Ulthera, Inc
Industry
Eligibility
30 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Rockville, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 24, 2017 · Synced Oct 20, 2026, 5:27 AM EDT
Completed Not applicable Interventional

Opioid Sparing Anesthesia Care for Pediatric Patients Having Tonsil Surgery

NCT06326983
View directory record Official record
Conditions
Tonsillitis, Post-operative Nausea and Vomiting (PONV), Emergence Delirium, Opioid Analgesic Adverse Reaction, Anesthesia, Pain
Interventions
Dexmedetomidine, Acetaminophen, Ketorolac, Morphine
Drug
Lead sponsor
Boston Children's Hospital
Other
Eligibility
3 Years to 17 Years
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Waltham, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced Oct 20, 2026, 5:27 AM EDT
Completed Phase 2 Interventional Results available

Acetaminophen/Naproxen Sodium Dose Ranging Study

NCT04447040
View directory record Official record
Conditions
Pain
Interventions
Acetaminophen/naproxen sodium Dose A, Acetaminophen/naproxen sodium Dose B, Acetaminophen/naproxen sodium Dose C, Acetaminophen/naproxen sodium Dose D, Acetaminophen/naproxen sodium Dose E, Placebo
Drug
Lead sponsor
Johnson & Johnson Consumer Inc., McNeil Consumer Healthcare Division
Industry
Eligibility
17 Years to 50 Years
Enrollment
304 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Mar 24, 2025 · Synced Oct 20, 2026, 5:27 AM EDT
Completed Phase 4 Interventional Results available

Efficacy of Intercostal CryoAnalgesia in Robotic Lung Resection

NCT05144828
View directory record Official record
Conditions
Pain, Postoperative, Lung Diseases
Interventions
Intercostal Nerve Cryoablation, Patient-controlled analgesia (PCA)
Device · Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years to 85 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Apr 15, 2026 · Synced Oct 20, 2026, 5:27 AM EDT
Withdrawn Phase 2 Interventional

Active Temperature Management After Cardiac Surgery and Its Effect on Postoperative Cognitive Dysfunction

NCT03947671
View directory record Official record
Conditions
Cardiac Surgery, Post-operative Cognitive Dysfunction, Fever
Interventions
Rapr Rounds Hyper/Hypothermia Wraps, Acetaminophen
Device · Drug
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
20 Years to 89 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 1, 2024 · Synced Oct 20, 2026, 5:27 AM EDT
Withdrawn Phase 1Phase 2 Interventional Accepts healthy volunteers

Platelet-Rich Plasma and the Effects of NSAIDs on Pain and Functional Scores in Knee Osteoarthritis

NCT05742763
View directory record Official record
Conditions
Osteoarthritis of the Knee, Degenerative Osteoarthritis, Knee Pain Chronic
Interventions
Ibuprofen and PRP, Acetaminophen and PRP, Placebo and PRP
Combination Product
Lead sponsor
QC Kinetix LLC
Industry
Eligibility
50 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 9, 2024 · Synced Oct 20, 2026, 5:27 AM EDT
Completed No phase listed Observational

A Multi-Center Group to Study Acute Liver Failure in Children

NCT00986648
View directory record Official record
Conditions
Acute Liver Failure, Hepatic Encephalopathy
Interventions
Not listed
Lead sponsor
University of Pittsburgh
Other
Eligibility
Up to 18 Years
Enrollment
158 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2015
U.S. locations
17
States / cities
San Francisco, California • Aurora, Colorado • Atlanta, Georgia + 13 more
Source: ClinicalTrials.gov public record
Updated Jan 12, 2016 · Synced Oct 20, 2026, 5:27 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Investigation of Efficacy of Improved Acetaminophen Labeling

NCT01592448
View directory record Official record
Conditions
Acetaminophen Overdose, Pain
Interventions
Active Ingredient Icon
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 80 Years
Enrollment
662 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
4
States / cities
Atlanta, Georgia • Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 18, 2014 · Synced Oct 20, 2026, 5:27 AM EDT
Not yet recruiting Phase 2 Interventional

Jaw Muscle Pain Post Wisdom Molar Surgery

NCT07094542
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jun 18, 2026 · Synced Oct 20, 2026, 5:27 AM EDT
Completed Phase 3 Interventional Results available

Analgesic Efficacy of Repeated Doses of Intravenous (IV) Acetaminophen in Post-operative Pediatric Spine Fusion Patients

NCT01394718
View directory record Official record
Conditions
Pain, Postoperative
Interventions
Intravenous Acetaminophen, Placebo
Drug · Other
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
10 Years to 18 Years
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 18, 2016 · Synced Oct 20, 2026, 5:27 AM EDT
Withdrawn Phase 4 Interventional

Hydroxychloroquine in SARS-CoV-2 (COVID-19) Pneumonia Trial

NCT04382625
View directory record Official record
Conditions
SARS-CoV-2 Pneumonia, COVID-19
Interventions
Hydroxychloroquine
Drug
Lead sponsor
Kootenai Health
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Coeur d'Alene, Idaho
Source: ClinicalTrials.gov public record
Updated Feb 5, 2021 · Synced Oct 20, 2026, 5:27 AM EDT
Completed Phase 3 Interventional Results available

Study to Evaluate the Safety and Efficacy of ABT-712 in Subjects With Moderate to Severe Chronic Low Back Pain (CLBP)

NCT00761150
View directory record Official record
Conditions
Chronic Low Back Pain
Interventions
ABT-712, Placebo
Drug
Lead sponsor
AbbVie (prior sponsor, Abbott)
Industry
Eligibility
21 Years to 75 Years
Enrollment
308 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
32
States / cities
Tempe, Arizona • Tucson, Arizona • Anaheim, California + 26 more
Source: ClinicalTrials.gov public record
Updated Feb 7, 2014 · Synced Oct 20, 2026, 5:27 AM EDT
Completed Phase 2 Interventional Results available

Analgesic Effect of IV Acetaminophen in Tonsillectomies

NCT01691690
View directory record Official record
Conditions
Adenotonsillitis, Tonsillitis
Interventions
Acetaminophen (paracetamol), Normal Saline Flush, Midazolam, Sevoflurane, Nitrous Oxide/Oxygen, Propofol, Morphine, Ondansetron, Dexamethasone
Drug
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
2 Years to 9 Years
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 6, 2017 · Synced Oct 20, 2026, 5:27 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Study of Palifermin (Kepivance) in Persons Undergoing Unrelated Donor Allogeneic Hematopoietic Cell Transplantation

NCT02356159
View directory record Official record
Conditions
Myelodysplastic Syndromes, Hodgkin's Lymphoma, Non-Hodgkin's Lymphoma, Acute Leukemia, Multiple Myeloma
Interventions
Rituximab, Conditioning chemotherapy, TMS, FLAG, EPOCH-F, Hematopoietic stem cell transplant, Palifermin, Acetaminophen, Diphenhydramine, Prednisone, Epinephrine, IV Saline, ECG, ECHO, MUGA, DEXA, CT chest, PET, MRI, BM aspirate, BM biopsy, Lumbar puncture
Biological · Drug · Procedure + 2 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2025
U.S. locations
2
States / cities
Bethesda, Maryland • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 30, 2025 · Synced Oct 20, 2026, 5:27 AM EDT
Withdrawn Phase 2 Interventional

Ibuprofen Versus Acetaminophen for Treatment of Mild Traumatic Brain Injury

NCT02443142
View directory record Official record
Conditions
Brain Concussion
Interventions
Ibuprofen, Acetaminophen
Drug
Lead sponsor
Northwestern University
Other
Eligibility
21 Years to 60 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 13, 2020 · Synced Oct 20, 2026, 5:27 AM 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 20, 2026, 5:27 AM EDT