Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Sep 27, 2026, 1:36 PM EDT

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

Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: Placebo IV Acetaminophen Clear all
Not listed Not applicable Interventional Accepts healthy volunteers

Use of IV Acetaminophen in the Treatment of Post Operative Pain in Patients Undergoing Craniotomy and Spine Surgery

NCT03261310
View directory record Official record
Conditions
Postoperative Pain
Interventions
Acetaminophen or Placebo
Drug
Lead sponsor
Brooke Army Medical Center
Federal
Eligibility
18 Years to 90 Years
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Aug 24, 2017 · Synced Sep 27, 2026, 1:36 PM EDT
Terminated Phase 4 Interventional Results available

Prochlorperazine Versus Acetaminophen, Aspirin, and Caffeine for the Treatment of Acute Migraine

NCT01629329
View directory record Official record
Conditions
Migraine Headaches
Interventions
Aspirin, Acetaminophen, Caffeine pills, Prochlorperazine 10mg
Drug
Lead sponsor
Albert Einstein Healthcare Network
Other
Eligibility
18 Years to 65 Years
Enrollment
93 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 17, 2020 · Synced Sep 27, 2026, 1:36 PM EDT
Terminated Phase 4 Interventional Results available

Steroids in Total Knee Arthroplasty

NCT02219581
View directory record Official record
Conditions
Postoperative Pain, Inflammation, Osteoarthritis
Interventions
Dexamethasone 10 mg, Dexamethasone 20 mg, Standard multimodal pain management regimen, Placebo
Drug
Lead sponsor
Thomas L Bradbury
Other
Eligibility
18 Years to 100 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Tucker, Georgia
Source: ClinicalTrials.gov public record
Updated Oct 3, 2022 · Synced Sep 27, 2026, 1:36 PM EDT
Completed Phase 4 Interventional Results available

Effect of IV Acetaminophen on Patients in the Neurocritical Care Unit

NCT01948505
View directory record Official record
Conditions
Post-operative Craniotomy Patients, Carotid Endarterectomy and Carotid Artery Stenosis Patients, Post-op Spine Patients Admitted to the NCCU, Endovascular Patients Undergoing Intracranial Intervention, Traumatic Brain Injuries NPO for at Least 12 Hours
Interventions
Intravenous acetaminophen, Placebo for IV acetaminophen
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 90 Years
Enrollment
210 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 23, 2023 · Synced Sep 27, 2026, 1:36 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Phase 1 Study to Evaluate Pregabalin and Acetaminophen in Healthy Volunteers

NCT04265456
View directory record Official record
Conditions
Postoperative Pain
Interventions
Pregabalin 100mg, Acetaminophen 1300mg
Drug
Lead sponsor
Nevakar, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Pasadena, California
Source: ClinicalTrials.gov public record
Updated Aug 4, 2020 · Synced Sep 27, 2026, 1:36 PM EDT
Terminated Phase 4 Interventional Results available

Clinical, Pharmacological and Molecular Effects of IV and Oral Acetaminophen in Adults With aSAH

NCT02549716
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Apr 9, 2019 · Synced Sep 27, 2026, 1:36 PM EDT
Terminated Phase 3 Interventional

Acetaminophen vs Placebo in the Pre-operative Setting and Outcomes on Post-operative Pain, Nausea and Vomiting

NCT02102555
View directory record Official record
Conditions
Post Operative Pain, Post Operative Nausea and Vomiting
Interventions
IV acetaminophen, placebo
Drug
Lead sponsor
MercyOne Des Moines Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
82 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Des Moines, Iowa
Source: ClinicalTrials.gov public record
Updated Jan 13, 2020 · Synced Sep 27, 2026, 1:36 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 11, 2024 · Synced Sep 27, 2026, 1:36 PM EDT
Completed Phase 4 Interventional Results available

Modified Pre-operative Oral Doses Acetaminophen Versus Intravenous Acetaminophen

NCT02994940
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Feb 17, 2021 · Synced Sep 27, 2026, 1:36 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Modifying Virtual Reality Analgesia With Low-Dose Pain Medication

NCT01840774
View directory record Official record
Conditions
Virtual Reality Therapy
Interventions
Low-dose pain medication (Ketalar) and saline placebo
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 60 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Apr 25, 2013 · Synced Sep 27, 2026, 1:36 PM EDT
Completed Not applicable Interventional Results available

Comparing Effectiveness of IV vs Oral Acetaminophen Given Perioperatively for Lap Choles for Pain Control,

NCT01823224
View directory record Official record
Conditions
Laparoscopic Cholecystectomy
Interventions
2 capsules Oral Tylenol 2000 mg and IV "salt water", IV tylenol 1000mg and 2 oral capsule "sugar pills"
Drug
Lead sponsor
Defense and Veterans Center for Integrative Pain Management
Other
Eligibility
18 Years and older
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Fort Bragg, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 5, 2016 · Synced Sep 27, 2026, 1:36 PM EDT
Terminated Phase 4 Interventional Results available

Vital Capacity in Ultrasound Guided Serratus Plane Block in ED Patients With Multiple Rib Fractures

NCT04530149
View directory record Official record
Conditions
Pain
Interventions
Acetaminophen, Bupivacain, Saline
Drug
Lead sponsor
Antonios Likourezos
Other
Eligibility
18 Years to 120 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Brooklyn, New York
Source: ClinicalTrials.gov public record
Updated Jun 10, 2024 · Synced Sep 27, 2026, 1:36 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 8, 2021 · Synced Sep 27, 2026, 1:36 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 21, 2026 · Synced Sep 27, 2026, 1:36 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Analgesic Efficacy & Safety of Intravenous (IV) Acetaminophen Versus Placebo for the Treatment of Postop Pain

NCT00564486
View directory record Official record
Conditions
Pain
Interventions
IV Placebo, IV Acetaminophen
Drug
Lead sponsor
Mallinckrodt
Industry
Eligibility
18 Years to 80 Years
Enrollment
244 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
17
States / cities
Sheffield, Alabama • Phoenix, Arizona • Arcadia, California + 11 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2016 · Synced Sep 27, 2026, 1:36 PM EDT
Completed Phase 4 Interventional Results available

IV vs. Oral Acetaminophen as a Component of Multimodal Analgesia After Total Hip Arthroplasty

NCT03020966
View directory record Official record
Conditions
Pain, Postoperative, Opioid Use
Interventions
Acetaminophen
Drug
Lead sponsor
Hospital for Special Surgery, New York
Other
Eligibility
18 Years to 90 Years
Enrollment
154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 9, 2021 · Synced Sep 27, 2026, 1:36 PM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of Intravenous Acetaminophen Over 48 Hrs for the Treatment of Post-op Pain After Gynecologic Surgery

NCT00399568
View directory record Official record
Conditions
Postoperative Pain, Hysterectomy
Interventions
IV Acetaminophen, IV Placebo 100 mL solution
Drug
Lead sponsor
Mallinckrodt
Industry
Eligibility
18 Years to 75 Years · Female only
Enrollment
331 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
27
States / cities
Birmingham, Alabama • Sheffield, Alabama • Phoenix, Arizona + 21 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2016 · Synced Sep 27, 2026, 1:36 PM EDT
Completed Phase 3 Interventional

Herniorrhaphy for Postoperative Pain

NCT05813847
View directory record Official record
Conditions
Hernia, Inguinal, Post Operative Pain
Interventions
local anaesthetic injection of CPL-01, Morphine (rescue medication), Acetaminophen (rescue medication), Oxycodone (rescue medication), local anaesthetic injection of placebo, local anaesthetic injection of ropivacaine HCl, Open inguinal hernia repair
Drug · Procedure
Lead sponsor
Cali Pharmaceuticals LLC
Industry
Eligibility
18 Years to 75 Years
Enrollment
518 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Sep 27, 2026, 1:36 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 4, 2020 · Synced Sep 27, 2026, 1:36 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Drug Interactions Between Morphine and Orally or IV Administered Acetaminophen

NCT02848729
View directory record Official record
Conditions
Pain
Interventions
Oral Acetaminophen, IV Acetaminophen, IV Morphine, Placebo Tablets, Saline
Drug
Lead sponsor
Mallinckrodt
Industry
Eligibility
18 Years to 55 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
3
States / cities
Tucson, Arizona • Naples, Florida • Kingston, Rhode Island
Source: ClinicalTrials.gov public record
Updated Feb 4, 2020 · Synced Sep 27, 2026, 1:36 PM EDT
Completed Not applicable Interventional

Pre-Emptive Analgesia in Ano-Rectal Surgery

NCT02402543
View directory record Official record
Conditions
Hemorrhoids, Fissure in Ano, Rectal Fistula, Anal Condyloma
Interventions
Gabapentin, Ketamine, Acetaminophen, Dexamethasone, Placebo
Drug
Lead sponsor
University of Vermont
Other
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
2
States / cities
Burlington, Vermont • Colchester, Vermont
Source: ClinicalTrials.gov public record
Updated Jan 15, 2018 · Synced Sep 27, 2026, 1:36 PM EDT
Terminated Phase 1Phase 2 Interventional Results available

Safety, Tolerability, and Pharmacokinetics of UX053 in Patients With Glycogen Storage Disease Type III (GSD III)

NCT04990388
View directory record Official record
Conditions
Glycogen Storage Disease Type III
Interventions
UX053, Placebo, Antipyretic, H2 Blocker, H1 Blocker
Biological · Other · Drug
Lead sponsor
Ultragenyx Pharmaceutical Inc
Industry
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
4
States / cities
Orange, California • Atlanta, Georgia • Philadelphia, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 15, 2024 · Synced Sep 27, 2026, 1:36 PM EDT
Completed Phase 4 Interventional Results available

Preoperative IV Versus Oral Acetaminophen

NCT03468920
View directory record Official record
Conditions
Pain, Postoperative
Interventions
IV Acetaminophen, PO Acetaminophen, PO Placebo, IV Solution Placebo
Drug
Lead sponsor
TriHealth Inc.
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated May 13, 2019 · Synced Sep 27, 2026, 1:36 PM EDT
Completed Phase 4 Interventional Results available

Effectiveness of IV Acetaminophen and IV Ibuprofen in Reducing Post Procedural Pain in the UFE Procedure

NCT02227316
View directory record Official record
Conditions
Symptomatic Uterine Fibroids and Adenomyosis
Interventions
IV Ibuprofen, IV Acetaminophen, Intravenous placebo/Intravenous placebo
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
21 Years to 60 Years · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
2
States / cities
Los Angeles, California • Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Jun 7, 2018 · Synced Sep 27, 2026, 1:36 PM EDT