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ClinicalTrials.gov public records Last synced Oct 24, 2026, 1:17 AM EDT

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Showing 625–648 of 979 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: APAP Clear all
Completed Phase 3 Interventional

The Safety and Efficacy of the Buprenorphine Transdermal Delivery System in Subjects With Chronic Low Back Pain.

NCT00315874
View directory record Official record
Conditions
Back Pain
Interventions
Buprenorphine transdermal delivery system
Drug
Lead sponsor
Purdue Pharma LP
Industry
Eligibility
18 Years and older
Enrollment
225 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 1998
U.S. locations
12
States / cities
Phoenix, Arizona • Gainesville, Florida • Plantation, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated May 14, 2013 · Synced Oct 24, 2026, 1:17 AM EDT
Withdrawn Phase 2 Interventional

RCT of SPG Blocks for Post-dural Headache

NCT03560349
View directory record Official record
Conditions
Post-Dural Puncture Headache
Interventions
Lidocaine HCl Gel 2%, placebo gel
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 50 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Dec 13, 2022 · Synced Oct 24, 2026, 1:17 AM 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 Oct 13, 2026 · Synced Oct 24, 2026, 1:17 AM EDT
Terminated Phase 3 Interventional

A Randomized, Open Label, Prospective Study to Explore the Clinical Characteristics of Oral MNK155 and Norco 7.5mg/325 When Used for the Treatment of Moderate to Severe Post Operative Pain

NCT02381132
View directory record Official record
Conditions
Post Operative Pain
Interventions
Norco 7.5mg/325, MNK155
Drug
Lead sponsor
Neil Singla
Other
Eligibility
18 Years and older
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Pasadena, California
Source: ClinicalTrials.gov public record
Updated Mar 25, 2016 · Synced Oct 24, 2026, 1:17 AM EDT
Completed No phase listed Observational

Behavioral Expressions in Alzheimer's Disease

NCT02719834
View directory record Official record
Conditions
Alzheimer's Disease
Interventions
Acetaminophen, Placebo
Drug · Other
Lead sponsor
University of Florida
Other
Eligibility
65 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Mar 2, 2018 · Synced Oct 24, 2026, 1:17 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacokinetic Study Investigating the Extent of Paracetamol Absorption From a New Formulation of Paracetamol Compared With Panadol® Extend

NCT01540721
View directory record Official record
Conditions
Healthy Subjects
Interventions
Marketed paracetamol, Experimental paracetamol formulation
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 55 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Nov 24, 2014 · Synced Oct 24, 2026, 1:17 AM EDT
Recruiting Phase 1Phase 2 Interventional

A Clinical Study of MK-2870 Alone or With Other Treatments to Treat Gastrointestinal Cancers (MK-9999-02A)

NCT06428409
View directory record Official record
Conditions
Colorectal Cancer, Pancreatic Ductal Adenocarcinoma, Biliary Tract Cancer
Interventions
Sacituzumab tirumotecan, Fluorouracil (5-FU), Leucovorin (LV) or levoleucovorin, Rescue medication, Supportive care measures, Cisplatin, Pembrolizumab
Biological · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
13
States / cities
Los Angeles, California • Aurora, Colorado • Washington D.C., District of Columbia + 8 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2026 · Synced Oct 24, 2026, 1:17 AM 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 24, 2026, 1:17 AM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers Results available

Clinical Study to Evaluate Efficacy of New Paracetamol Formulation Compared to Ibuprofen in Headache

NCT01842633
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Sep 1, 2017 · Synced Oct 24, 2026, 1:17 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study of Acetaminophen for Post Surgical Dental Pain

NCT04018612
View directory record Official record
Conditions
Pain, Postoperative, Dental Pain
Interventions
Acetaminophen, Placebo
Drug · Other
Lead sponsor
Nevakar, Inc.
Industry
Eligibility
17 Years to 55 Years
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Mar 29, 2022 · Synced Oct 24, 2026, 1:17 AM EDT
Not listed Phase 4 Interventional

A Multi-surgery Assessment of ZYNRELEF (HTX-011), AMAZE. Master Protocol HTX-011-401.

NCT05109312
View directory record Official record
Conditions
Analgesia
Interventions
Bupivacaine Hydrochloride, HTX-011, Luer lock applicator, Ibuprofen, Acetaminophen
Drug · Device
Lead sponsor
Heron Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
7
States / cities
Little Rock, Arkansas • Sarasota, Florida • Tulsa, Oklahoma + 4 more
Source: ClinicalTrials.gov public record
Updated Oct 26, 2023 · Synced Oct 24, 2026, 1:17 AM EDT
Recruiting Phase 2 Interventional

A Study to Evaluate the Efficacy, Safety, and Pharmacokinetics of Obinutuzumab in Adolescents With Active Class III or IV Lupus Nephritis and the Safety and PK of Obinutuzumab in Pediatric Participants

NCT05039619
View directory record Official record
Conditions
Lupus Nephritis
Interventions
Obinutuzumab, Placebo, Mycophenolate Mofetil, Acetaminophen/paracetamol, Diphenhydramine hydrochloride (HCl), Methylprednisolone, Prednisone
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
5 Years to 17 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2030
U.S. locations
11
States / cities
Loma Linda, California • San Francisco, California • Aurora, Colorado + 8 more
Source: ClinicalTrials.gov public record
Updated Oct 6, 2026 · Synced Oct 24, 2026, 1:17 AM EDT
Completed Phase 3 Interventional

Randomized Study of Acetylcysteine in Patients With Acute Liver Failure Not Caused by Acetaminophen

NCT00004467
View directory record Official record
Conditions
Acute Liver Failure
Interventions
N-acetylcysteine (NAC), Placebo
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 70 Years
Enrollment
173 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2006
U.S. locations
25
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Los Angeles, California + 19 more
Source: ClinicalTrials.gov public record
Updated Oct 13, 2017 · Synced Oct 24, 2026, 1:17 AM EDT
Completed Phase 2 Interventional Results available

A Study Evaluating Efficacy and Safety of VX-548 for Acute Pain After a Bunionectomy

NCT04977336
View directory record Official record
Conditions
Acute Pain
Interventions
VX-548, HB/APAP, Placebo (matched to VX-548), Placebo (matched to HB/APAP)
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years to 75 Years
Enrollment
274 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
12
States / cities
Sheffield, Alabama • Phoenix, Arizona • Anaheim, California + 9 more
Source: ClinicalTrials.gov public record
Updated Jun 25, 2025 · Synced Oct 24, 2026, 1:17 AM EDT
Recruiting Not applicable Interventional

Open-label Placebo (COLP) for Pain in Adolescent Idiopathic Scoliosis (AIS) Surgery+Surgical Treatment of Idiopathic Scoliosis

NCT06365892
View directory record Official record
Conditions
Adolescent Idiopathic Scoliosis (AIS)
Interventions
open-label placebo, Treatment as usual
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
10 Years to 18 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 13, 2026 · Synced Oct 24, 2026, 1:17 AM EDT
Completed Not applicable Interventional

Accuracy of Needle Placement Into The Subacromial Space of The Shoulder

NCT01330641
View directory record Official record
Conditions
Rotator Cuff Tendonitis
Interventions
Injection of Subacromial Bursa
Procedure
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Apr 7, 2011 · Synced Oct 24, 2026, 1:17 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Efficacy of Bromocriptine For Fever Reduction in Acute Neurologic Injury

NCT03496545
View directory record Official record
Conditions
Subarachnoid Hemorrhage, Subdural Hematoma, Traumatic Brain Injury, Ischemic Stroke, Fever, Intracerebral Hemorrhage
Interventions
Bromocriptine 5 MG, Acetaminophen 650 MG
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 100 Years
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
2
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 24, 2021 · Synced Oct 24, 2026, 1:17 AM EDT
Completed Phase 4 Interventional

Treatment of Cognitive and Negative Symptoms in Schizophrenia With N-acetylcysteine

NCT02505477
View directory record Official record
Conditions
Schizophrenia, Cognitive Deficits, Schizophrenia; Negative Type
Interventions
N-acetylcysteine, Treatment as Usual
Drug · Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 65 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 15, 2023 · Synced Oct 24, 2026, 1:17 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Obstructive Sleep Apnea Treatment in Serious Mental Illness

NCT05457127
View directory record Official record
Conditions
Schizoaffective Disorder, Schizophrenia, Bipolar Disorder, Obstructive Sleep Apnea of Adult
Interventions
Automatic Positive Airway Pressure (APAP)
Device
Lead sponsor
University of California, San Diego
Other
Eligibility
40 Years to 70 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jul 10, 2024 · Synced Oct 24, 2026, 1:17 AM EDT
Completed Phase 3 Interventional

Opioid-free Anesthesia for Open Cardiac Surgery: A Prospective Randomized Controlled Trial

NCT04197570
View directory record Official record
Conditions
Opioid Use, Heart; Surgery, Heart, Functional Disturbance as Result, Anesthesia
Interventions
Opioid Anesthetics, Non Opioid Analgesics
Drug
Lead sponsor
Benaroya Research Institute
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 28, 2020 · Synced Oct 24, 2026, 1:17 AM EDT
Terminated Phase 1Phase 2 Interventional Results available

Siplizumab for Sickle Cell Disease Transplant

NCT06078696
View directory record Official record
Conditions
Anemia, Sickle Cell
Interventions
Siplizumab, Exchange Transfusion, Total Body Irradiation, Stem Cell Infusion, Cyclophosphamide 50mg, Mesna, Sirolimus Oral Tablet, Rituximab or Biosimilar
Drug · Procedure
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 50 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Oct 24, 2026, 1:17 AM EDT
Terminated Phase 4 Interventional

Effect of Perioperative Acetaminophen Dosing on Patients Undergoing Surgical Treatment of Basilar Thumb Arthritis

NCT05556356
View directory record Official record
Conditions
Carpometacarpal Osteoarthritis
Interventions
Acetaminophen, Placebo: Multivitamin
Drug · Other
Lead sponsor
Indiana Hand to Shoulder Center
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Oct 8, 2024 · Synced Oct 24, 2026, 1:17 AM EDT
Not yet recruiting Phase 4 Interventional Accepts healthy volunteers

Suzetrigine Following Urogynecologic Surgery: Investigation of Postoperative Pain Management

NCT07856654
View directory record Official record
Conditions
Pelvic Organ Prolapse (POP), Postoperative Pain, Urogynecology
Interventions
Suzetrigine, Placebo
Drug
Lead sponsor
Aditi Talkad
Other
Eligibility
40 Years to 80 Years · Female only
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Oct 2, 2026 · Synced Oct 24, 2026, 1:17 AM EDT
Completed Phase 1 Interventional

Combination of Acetaminophen and Ibuprofen in the Management of Patent Ductus Arteriosus

NCT03103022
View directory record Official record
Conditions
Patent Ductus Arteriosus, Neonate
Interventions
Acetaminophen, ibuprofen
Drug
Lead sponsor
University of Florida
Other
Eligibility
23 Weeks to 30 Weeks
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
2
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 31, 2020 · Synced Oct 24, 2026, 1:17 AM EDT