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Showing 1–24 of 40 matching trials from the live ClinicalTrials.gov search.
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Completed Phase 4 Interventional Accepts healthy volunteers Results available

Pre-emptive Analgesics in Orthodontic Treatment

NCT03523988
View directory record Official record
Conditions
NSAID, Pain Management
Interventions
Acetaminophen, Ibuprofen
Drug
Lead sponsor
University of Washington
Other
Eligibility
12 Years to 59 Years
Enrollment
73 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Aug 20, 2019 · Synced Sep 2, 2026, 7:09 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Trigger Point Injection for Myofascial Pain Syndrome in the Low Back: A Randomized Controlled Trial

NCT04704297
View directory record Official record
Conditions
Low Back Pain, Myofascial Pain Syndrome Lower Back
Interventions
Treatment of Myofascial Pain Syndrome in the low back. This intervention will be based on outcomes of the medications listed below., Evaluation of functional ability using a patient centered functional score known as the Modified Oswestry Disability Index (MODI). The intervention will be based on outcomes of medications below., Following up with participants 60-72 hours after treatment in the Emergency Department. This intervention will be based on outcomes of the medications listed below.
Drug
Lead sponsor
Madigan Army Medical Center
Federal
Eligibility
18 Years and older
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated Jan 11, 2021 · Synced Sep 2, 2026, 7:09 AM EDT
Completed Phase 4 Interventional Results available

Ketamine Infusion Therapy for the Management of Acute Pain in Adult Rib Fracture Patients

NCT02432456
View directory record Official record
Conditions
Wounds and Injuries, Rib Fractures
Interventions
Ketamine, Placebo, Intercostal Nerve Block, Acetaminophen, Ibuprofen, Pantoprazole, Methocarbamol, Opioid
Drug · Procedure
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older
Enrollment
153 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 4, 2020 · Synced Sep 2, 2026, 7:09 AM EDT
Enrolling by invitation Phase 4 Interventional

Enhanced Recovery After Surgery (ERAS) in Live Donor Kidney Transplant Recipients

NCT06997016
View directory record Official record
Conditions
Postoperative Pain
Interventions
pre-operative carbohydrate drink, Acetaminophen, Gabapentin, Bupivacaine, Ambulation
Dietary Supplement · Drug · Other
Lead sponsor
Baylor Research Institute
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Fort Worth, Texas
Source: ClinicalTrials.gov public record
Updated Jan 26, 2026 · Synced Sep 2, 2026, 7:09 AM EDT
Completed Phase 2 Interventional Results available

Analgesic Efficacy of (MSIR)/Acetaminophen vs. Oxycodone/Acetaminophen (Percocet)

NCT03088826
View directory record Official record
Conditions
Pain Management
Interventions
Morphine Sulfate, Oxycodone, Acetaminophen
Drug
Lead sponsor
Antonios Likourezos
Other
Eligibility
18 Years to 64 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Brooklyn, New York
Source: ClinicalTrials.gov public record
Updated Mar 13, 2022 · Synced Sep 2, 2026, 7:09 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Phase I/II Study of Immunotherapy Combination BN-Brachyury Vaccine, M7824, N-803 and Epacadostat (QuEST1)

NCT03493945
View directory record Official record
Conditions
Metastatic Castration-resistant Prostate Cancer, Prostate Cancer, Prostate Neoplasm, Advanced Solid Tumor, Solid Tumor, Non-metastatic Castration-resistant Prostate Cancer
Interventions
M7824, N-803, MVA-BN-Brachyury, FPV-Brachyury, Epacadostat, Acetaminophen, Ibuprofen, Naproxen, Benadryl, EKG, Bone scan, CT chest, abdomen and pelvis, MRI
Biological · Drug · Other + 1 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 120 Years
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 29, 2025 · Synced Sep 2, 2026, 7:09 AM EDT
Withdrawn Phase 4 Interventional

Ketamine in Colorectal Surgery

NCT02785003
View directory record Official record
Conditions
Acute Pain, Pain, Postoperative, Colorectal Surgery
Interventions
Placebo, Ketamine, Acetaminophen, Opioid, Alvimopan
Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 25, 2017 · Synced Sep 2, 2026, 7:09 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Effect of Acetaminophen on Postpartum Blood Pressure Control in Preeclampsia With Severe Features

NCT02911701
View directory record Official record
Conditions
Pre-Eclampsia, HELLP Syndrome, Eclampsia
Interventions
Acetaminophen, Ibuprofen
Drug
Lead sponsor
University of New Mexico
Other
Eligibility
18 Years and older · Female only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Jul 26, 2023 · Synced Sep 2, 2026, 7:09 AM EDT
Terminated Not applicable Interventional

Post-operative Pain Control With Acetaminophen and Ibuprofen After Functional Endoscopic Sinus Surgery

NCT05287217
View directory record Official record
Conditions
Chronic Rhinosinusitis (Diagnosis)
Interventions
Comparison of medication administration for pain control
Other
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 19, 2025 · Synced Sep 2, 2026, 7:09 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Gastric Assessment of Pediatric Patients Undergoing Surgery

NCT05674643
View directory record Official record
Conditions
Fasting, Delayed Gastric Emptying, Aspiration Pneumonia, Respiratory Aspiration of Gastric Content
Interventions
Gastric Ultrasound Baseline Scans, Acetaminophen Absorption Test (AAT), Gastric Ultrasound Serial Scans
Diagnostic Test
Lead sponsor
Boston Children's Hospital
Other
Eligibility
2 Years to 18 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 1, 2026 · Synced Sep 2, 2026, 7:09 AM EDT
Withdrawn Phase 4 Interventional

Improving Pain Management After Total Shoulder Replacement Using Bupivacaine Liposome

NCT04134442
View directory record Official record
Conditions
Osteoarthritis of the Shoulder, Shoulder Pain, Pain, Postoperative
Interventions
Bupivacaine Liposome Injection, Standard Therapy
Drug · Other
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 5, 2022 · Synced Sep 2, 2026, 7:09 AM EDT
Recruiting Phase 2 Interventional

MT2023-20: Hematopoietic Cell Transplant With Reduced Intensity Conditioning and Post-transplant Cyclophosphamide for Severe Aplastic Anemia and Other Forms of Acquired Bone Marrow Failure.

NCT06412497
View directory record Official record
Conditions
Severe Aplastic Anemia, Acquired Amegakaryocytic Thrombocytopenia, Acquired Pure Red Cell Aplasia, Paroxysmal Nocturnal Hemoglobinuria
Interventions
Rituximab, Rabbit ATG, Cyclophosphamide, Fludarabine, Total Body Irradiation, Cell Infusion, Post-Transplant G-CSF, Tacrolimus, Mycophenolate Mofetil
Drug · Radiation · Biological
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
0 Years to 75 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2036
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Sep 2, 2026, 7:09 AM EDT
Recruiting Phase 4 Interventional

NSAID Use for Treating Dysmenorrhea and Preventing Chronic Pelvic Pain (NSAID HEAL)

NCT06861920
View directory record Official record
Conditions
Dysmenorrhea, Chronic Pelvic Pain, Pelvic Pain
Interventions
Naproxen Sodium 550mg, Placebo, Extended Release Acetaminophen (650 mg)
Drug
Lead sponsor
Endeavor Health
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
1
States / cities
Evanston, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 6, 2025 · Synced Sep 2, 2026, 7:09 AM EDT
Completed Not applicable Interventional Results available

Patient-Driven Analgesic Protocol Selection for Post-Cesarean Pain Management

NCT02605187
View directory record Official record
Conditions
Postoperative Pain
Interventions
No choice given, Choice given, Ibuprofen, Acetaminophen, Gabapentin, Morphine (low), Morphine (med), Morphine (high)
Other · Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Oct 15, 2018 · Synced Sep 2, 2026, 7:09 AM EDT
Completed Phase 4 Interventional Results available

Improving Post-Operative Pain and Recovery in Gynecologic Surgery

NCT04175509
View directory record Official record
Conditions
Postoperative Pain, Opioid Use, Acetaminophen
Interventions
Rectal acetaminophen, Intravenous acetaminophen
Drug
Lead sponsor
Aultman Health Foundation
Other
Eligibility
18 Years and older · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Canton, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 19, 2022 · Synced Sep 2, 2026, 7:09 AM EDT
Completed Phase 3 Interventional Results available

Aspirin for Exercise in Multiple Sclerosis (ASPIRE)

NCT03824938
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Aspirin 650mg Oral Capsule, Acetaminophen Tablet 650mg, Placebo
Drug · Other
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 70 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 26, 2023 · Synced Sep 2, 2026, 7:09 AM EDT
Terminated Phase 1 Interventional Results available

Donor-Alloantigen-Reactive Regulatory T Cell (darTregs) in Liver Transplantation

NCT02188719
View directory record Official record
Conditions
Liver Transplantation
Interventions
Anti-Thymocyte Globulin - Rabbit, darTreg Infusion, Everolimus, Tacrolimus, Mycophenolate mofetil, Prednisone, Acetaminophen, Diphenhydramine, Anti-Infective Prophylaxis, Leukapheresis, Blood draws, Liver biopsies, Liver transplantation
Biological · Drug · Procedure
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
21 Years to 70 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
3
States / cities
San Francisco, California • Chicago, Illinois • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 21, 2020 · Synced Sep 2, 2026, 7:09 AM EDT
Completed Phase 4 Interventional Results available

Belatacept Early Steroid Withdrawal Trial

NCT01729494
View directory record Official record
Conditions
Renal Transplantation
Interventions
Alemtuzumab, rabbit antithymocyte globulin, Belatacept, Tacrolimus, Mycophenolate mofetil, early cessation of steroids
Drug
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years and older
Enrollment
316 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2019
U.S. locations
8
States / cities
San Francisco, California • Denver, Colorado • Tampa, Florida + 4 more
Source: ClinicalTrials.gov public record
Updated Jul 23, 2026 · Synced Sep 2, 2026, 7:09 AM EDT
Terminated Phase 4 Interventional Results available

A Trial of Two Steroid-Free Approaches Toward Mycophenolate Mofetil-Based Monotherapy Immunosuppression

NCT00166712
View directory record Official record
Conditions
Kidney Transplant Failure and Rejection
Interventions
Tacrolimus (TAC), Sirolimus, Alemtuzumab, Mycophenolate mofetil (MMF)
Drug
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 25, 2015 · Synced Sep 2, 2026, 7:09 AM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

A Prospective Pilot Study of a Non-Narcotic Post-Operative Course After Colectomy

NCT05200806
View directory record Official record
Conditions
Analgesia, Post-Operative Pain, Breakthrough Pain, Colectomy
Interventions
Non-Narcotic ERAS Post-Operative Pain Management
Other
Lead sponsor
University of Vermont
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Oct 13, 2022 · Synced Sep 2, 2026, 7:09 AM EDT
Recruiting Phase 2 Interventional

Celecoxib for ENT Pain Management

NCT06505187
View directory record Official record
Conditions
Parotidectomy
Interventions
Celecoxib, Tylenol, Oxycodone, placebo
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Sep 2, 2026, 7:09 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Post Operative Analgesia and Patient Satisfaction

NCT04976387
View directory record Official record
Conditions
Postoperative Pain, Patient Satisfaction, Analgesia
Interventions
Not listed
Lead sponsor
Loma Linda University
Other
Eligibility
18 Years to 89 Years
Enrollment
160 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Mar 29, 2026 · Synced Sep 2, 2026, 7:09 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Acute Headache Treatment in Pregnancy: Occipital Nerve Block vs PO Acetaminophen With Caffeine

NCT03951649
View directory record Official record
Conditions
Headache, Pregnancy Related, Occipital Nerve Block
Interventions
Occipital Nerve Block
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
16 Years to 60 Years · Female only
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Dec 19, 2023 · Synced Sep 2, 2026, 7:09 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

To Investigate the Gastrointestinal Behaviour of Two Triple Combination Products in Healthy Male Volunteers

NCT03415243
View directory record Official record
Conditions
Common Cold
Interventions
Acetaminophen 650mg+Dextromethorphan 20mg+Phenylephrine 10mg, Acetaminophen 325mg+Dextromethorphan 10mg+Phenylephrine 5mg
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
21 Years to 45 Years · Male only
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Jun 23, 2019 · Synced Sep 2, 2026, 7:09 AM EDT