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ClinicalTrials.gov public records Last synced Oct 30, 2026, 12:27 PM EDT

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Showing 865–888 of 947 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: acetominophen Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Optimization of Pre-operative Oral Analgesics in Patients Undergoing Ambulatory Minimally Invasive Hysterectomy

NCT03420794
View directory record Official record
Conditions
Hysterectomy, Laparoscopy, Analgesia
Interventions
Timing of pre-operative oral non-narcotic analgesics in relation to minimally invasive hysterectomy
Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Weston, Florida
Source: ClinicalTrials.gov public record
Updated Mar 8, 2023 · Synced Oct 30, 2026, 12:27 PM EDT
Not listed Phase 3 Interventional Accepts healthy volunteers

Does Meloxicam Provide as Much Pain Relief as Opioids After Shoulder Surgery?

NCT04725357
View directory record Official record
Conditions
Shoulder Pain
Interventions
Meloxicam 15 mg, Preoperative Interscalene Nerve Block, arthroscopic labral repair
Drug · Procedure
Lead sponsor
Rothman Institute Orthopaedics
Other
Eligibility
18 Years and older
Enrollment
96 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 26, 2021 · Synced Oct 30, 2026, 12:27 PM EDT
Withdrawn Phase 4 Interventional

A Pilot Study Investigating the Efficacy of Minocycline and N-Acetyl Cysteine for Bipolar Depression

NCT02719392
View directory record Official record
Conditions
Bipolar Disorder, Bipolar Depression
Interventions
N-acetylcysteine, Minocycline, Placebo
Dietary Supplement · Drug · Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 24, 2026 · Synced Oct 30, 2026, 12:27 PM 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, 12:27 PM EDT
Terminated Not applicable Interventional Results available

Comparison Study of Transversus Abdominal Plane, Paravertebral and Epidural Blocks in Laparoscopic Colectomy

NCT02164929
View directory record Official record
Conditions
Laparoscopic Colorectal Resection
Interventions
TAP block, Epidural, Paravertebral block, Acetaminophen 1g IV, Dexamethasone 4mg, Midazolam up to 2mg, Propofol 1-2.5 mg/kg, Sevoflurane to keep a bispectral index of between 40-60, Local infiltration with 10 mL of plain ropivacaine 0.25%, Lidocaine, Epinephrine, Hydromorphone
Procedure · Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 25, 2017 · Synced Oct 30, 2026, 12:27 PM EDT
Completed Phase 3 Interventional Results available

A Multi-Center Study of the Efficacy, Pharmacokinetics (PK) and Pharmacodynamics (PD) of IV Acetaminophen for the Treatment of Acute Pain in Pediatric Patients

NCT01635101
View directory record Official record
Conditions
Acute Pain
Interventions
IV Acetaminophen, IV Control
Drug
Lead sponsor
Mallinckrodt
Industry
Eligibility
1 Day to 2 Years
Enrollment
197 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
22
States / cities
Birmingham, Alabama • Orange, California • San Diego, California + 19 more
Source: ClinicalTrials.gov public record
Updated Jan 21, 2020 · Synced Oct 30, 2026, 12:27 PM EDT
Completed Not applicable Interventional

Effect of Number of Meals on Metabolism After Weight Loss Surgery

NCT02929212
View directory record Official record
Conditions
Morbid Obesity
Interventions
Solid Meal, Liquid Meal, Acetaminophen, Single, 600 kcal meal, Multiple, 200 kcal meals
Other · Drug
Lead sponsor
Columbia University
Other
Eligibility
21 Years to 60 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 1, 2017 · Synced Oct 30, 2026, 12:27 PM 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 30, 2026, 12:27 PM EDT
Active, not recruiting Phase 2 Interventional

ACALA-R In Predominantly Demyelinating IgM Mediated Neuropathy

NCT05065554
View directory record Official record
Conditions
IgM MGUS, Waldenstrom Macroglobulinemia, Neuropathy;Peripheral
Interventions
Acalabrutinib, Rituximab
Drug
Lead sponsor
Shayna Sarosiek, MD
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2028
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 5, 2025 · Synced Oct 30, 2026, 12:27 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Osteopathic Manipulative Treatment in the Third Trimester of Pregnancy

NCT06570395
View directory record Official record
Conditions
Pregnancy, Osteopathic Manipulative Treatment (OMT)
Interventions
Osteopathic Manipulative Treatment
Procedure
Lead sponsor
Corewell Health South
Other
Eligibility
18 Years to 34 Years · Female only
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Saint Joseph, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 23, 2026 · Synced Oct 30, 2026, 12:27 PM EDT
Completed Phase 1 Interventional

Towards Predicting the Analgesic Response to Ibuprofen Following Third-molar Extraction

NCT03893175
View directory record Official record
Conditions
Impacted Third Molar Tooth, Pain, Acute
Interventions
Ibuprofen, Acetaminophen, Placebo, Oxycodone
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 64 Years
Enrollment
86 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 24, 2025 · Synced Oct 30, 2026, 12:27 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Donor Alloantigen Reactive Tregs (darTregs) for Calcineurin Inhibitor (CNI) Reduction

NCT02474199
View directory record Official record
Conditions
Liver Transplant Recipient, Living Donor (of the Respective Liver Transplant Recipient)
Interventions
darTregs, Acetaminophen, Diphenhydramine, Immunosuppression (IS) Withdrawal, Study Mandated Procedures
Biological · Drug · Procedure
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 70 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
3
States / cities
San Francisco, California • Chicago, Illinois • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 9, 2021 · Synced Oct 30, 2026, 12:27 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Ketorolac as an Adjuvant Agent for Postoperative Pain Control Following Arthroscopic ACL Surgery

NCT04246554
View directory record Official record
Conditions
ACL Injury, Postoperative Pain
Interventions
Ketorolac, Oxycodone-Acetaminophen
Drug
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
18 Years to 89 Years
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 21, 2021 · Synced Oct 30, 2026, 12:27 PM 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 30, 2026, 12:27 PM EDT
Not listed Phase 3 Interventional Accepts healthy volunteers

Effect of Ropivacaine During Popliteal Nerve Block in Foot and Ankle Surgery

NCT04872322
View directory record Official record
Conditions
Popliteal Nerve Block, Foot Surgery, Ankle Surgery
Interventions
Ropivacaine 0.5% Injectable Solution, Ropivacaine 0.25% Injectable Solution, Percocet Pill, Norco Pill, Foot/Ankle Surgery
Drug · Procedure
Lead sponsor
Rothman Institute Orthopaedics
Other
Eligibility
18 Years and older
Enrollment
128 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 4, 2021 · Synced Oct 30, 2026, 12:27 PM EDT
Recruiting Phase 3 Interventional

Post-Op Pain Control for Prophylactic Intramedullary Nailing.

NCT03823534
View directory record Official record
Conditions
Bone Metastases, Lymphoma, Multiple Myeloma, Opioid Use, Pain
Interventions
Ketorolac, Normal saline, Acetaminophen, Oxycodone Acetaminophen, Morphine, Hydrocodone/Acetaminophen, Oxycodone
Drug
Lead sponsor
St. Louis University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2027
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 22, 2026 · Synced Oct 30, 2026, 12:27 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Reduction in Pain Intensity Following IV or Oral Pain-relieving Products

NCT02678416
View directory record Official record
Conditions
Pain
Interventions
IV Acetaminophen (Treatment A), Oral Acetaminophen (Treatment B), Placebo (Treatment C), Morphine (Treatment D)
Drug · Other
Lead sponsor
Mallinckrodt
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
79 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Feb 5, 2020 · Synced Oct 30, 2026, 12:27 PM EDT
Completed Phase 3 Interventional

Analgesic Effects of Cannabidiol for Simple Tooth Extractions in Dental Patients

NCT04271917
View directory record Official record
Conditions
Pain, Acute
Interventions
cannabidiol, placebo, acetaminophen 500mg and ibuprofen 200mg combo
Drug
Lead sponsor
University of Tennessee
Other
Eligibility
18 Years and older
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated May 2, 2022 · Synced Oct 30, 2026, 12:27 PM EDT
Recruiting Phase 4 Interventional

NonNarcotic Pain Control in Percutaneous Needle Tenotomy of Elbow

NCT06373978
View directory record Official record
Conditions
Elbow Pain, Chronic Pain
Interventions
Diclofenac, Tramadol, Acetaminophen
Drug · Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
92 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
2
States / cities
Coral Springs, Florida • Avon, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 28, 2026 · Synced Oct 30, 2026, 12:27 PM EDT
Completed Not applicable Interventional

Comparison of Acetaminophen With Codeine and Ibuprofen for Children With Injuries

NCT00474721
View directory record Official record
Conditions
Pain
Interventions
ibuprofen, acetaminophen with codeine
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
5 Years to 18 Years
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2004
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated May 17, 2007 · Synced Oct 30, 2026, 12:27 PM EDT
Terminated Phase 3 Interventional

Perioperative Analgesia on Postoperative Opioid Usage and Pain Control in H&N Cancer Surgery

NCT04176419
View directory record Official record
Conditions
Postoperative Pain Control, Opioid Consumption
Interventions
Ketamine, Placebo Ketamine, Lidocaine, Placebo Lidocaine, Acetaminophen, Placebo Acetaminophen, Gabapentin, Placebo Gabapentin, Celecoxib, Placebo Celecoxib
Drug
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 12, 2024 · Synced Oct 30, 2026, 12:27 PM EDT
Active, not recruiting Not applicable Interventional

Use of Transcutaneous Electrical Nerve Stimulation for Reducing Biologic Injection Site Pain(TENS Study)

NCT04058652
View directory record Official record
Conditions
Psoriasis
Interventions
transcutaneous electrical nerve stimulation (TENS) unit
Device
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 64 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2027
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 4, 2026 · Synced Oct 30, 2026, 12:27 PM EDT
Terminated Phase 2 Interventional Results available

Autologous Followed by Non-myeloablative Allogeneic Transplantation for Non-Hodgkin's Lymphoma

NCT00481832
View directory record Official record
Conditions
Lymphoma, Non-Hodgkin
Interventions
Cyclophosphamide, BCNU, Etoposide, Filgrastim, Antithymocyte globulin, Cyclosporine, Mycophenolate mofetil, Rituximab, Autologous hematopoietic stem cell transplantation (auto-HSCT), Allogeneic hematopoietic stem cell transplantation (allo-HSCT), Total lymphoid irradiation, CD34+ Cells, Solu-Medrol
Drug · Procedure
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 70 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2017
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Feb 14, 2018 · Synced Oct 30, 2026, 12:27 PM EDT
Recruiting Phase 2 Interventional

KEYMAKER-U01 Substudy 01J: A Study of Pembrolizumab Plus MK-1084 in Participants With Non-Small Cell Lung Cancer (NSCLC) With Kirsten Rat Sarcoma Viral Oncogene Homolog (KRAS) G12C Mutations (MK-3475-01J/KEYMAKER-U01J)

NCT07252739
View directory record Official record
Conditions
Malignant Neoplasm
Interventions
MK-1084, Pembrolizumab, Cetuximab, Sacituzumab tirumotecan (sac-TMT), Rescue medication
Drug · Biological
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2032
U.S. locations
3
States / cities
Clermont, Florida • Fargo, North Dakota • Sioux Falls, South Dakota
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Oct 30, 2026, 12:27 PM EDT