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ClinicalTrials.gov public records Last synced Sep 17, 2026, 2:56 PM EDT

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Showing 1–24 of 39 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Aspirin 325mg Clear all
Not listed Phase 1Phase 2 Interventional Accepts healthy volunteers

Reversal of Dual Antiplatelet Therapy With Cold Stored Platelets

NCT03787927
View directory record Official record
Conditions
Bleeding, Platelet Dysfunction Due to Drugs, Platelet Dysfunction
Interventions
Autologous Platelet Transfusion (room-temperature-stored), Autologous Platelet Transfusion (cold-stored 5 days), Autologous Platelet Transfusion (cold-stored 10 days), Autologous Platelet Transfusion (cold-stored 15 days), Aspirin, Clopidogrel
Drug
Lead sponsor
Bloodworks
Other
Eligibility
18 Years to 59 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 13, 2020 · Synced Sep 17, 2026, 2:56 PM EDT
Suspended Early Phase 1 Interventional

Using Aspirin to Improve Immunological Features of Ovarian Tumors

NCT05080946
View directory record Official record
Conditions
Ovarian Cancer, Fallopian Tube Cancer, Peritoneal Cancer
Interventions
Aspirin 325mg, Placebo
Drug
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older · Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
4
States / cities
Tampa, Florida • Portland, Oregon • Charlottesville, Virginia + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 14, 2026 · Synced Sep 17, 2026, 2:56 PM EDT
Completed Not applicable Interventional Results available

Aspirin Dosing: A Patient-Centric Trial Assessing Benefits and Long-term

NCT02697916
View directory record Official record
Conditions
Atherosclerotic Cardiovascular Disease
Interventions
aspirin
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
15,076 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
40
States / cities
Los Angeles, California • Wilmington, Delaware • Gainesville, Florida + 28 more
Source: ClinicalTrials.gov public record
Updated Jun 30, 2021 · Synced Sep 17, 2026, 2:56 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of ASA on Prostate Tissue

NCT00234299
View directory record Official record
Conditions
Prostate Cancer
Interventions
Aspirin, Placebo
Drug
Lead sponsor
University of Washington
Other
Eligibility
45 Years to 74 Years · Male only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2015
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 24, 2016 · Synced Sep 17, 2026, 2:56 PM EDT
Completed Not applicable Interventional Results available

Alternative Options to Minimize Niacin-Induced Flushing

NCT00895193
View directory record Official record
Conditions
Hypercholesterolemia, Flushing
Interventions
Apple pectin, Aspirin 325 mg, Placebo
Other · Drug
Lead sponsor
Patrick Moriarty, MD, FACP, FACC
Other
Eligibility
21 Years to 70 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jun 4, 2014 · Synced Sep 17, 2026, 2:56 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Metabolomic and Inflammatory Effects of Oral Aspirin (ASA) in Subjects at Risk for Melanoma

NCT04062032
View directory record Official record
Conditions
Melanoma (Skin)
Interventions
Aspirin 81 mg, Aspirin 325mg
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Feb 17, 2022 · Synced Sep 17, 2026, 2:56 PM EDT
Completed Not applicable Interventional Results available

The Clinical Utility of Thrombelastography in Guiding Prophylaxis of Venous Thromboembolism Following Trauma

NCT01050153
View directory record Official record
Conditions
Venous Thromboembolism
Interventions
Dalteparin sodium, Dalteparin sodium/aspirin
Drug
Lead sponsor
Denver Health and Hospital Authority
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 7, 2019 · Synced Sep 17, 2026, 2:56 PM EDT
Terminated Phase 2 Interventional Results available

Salicylic Augmentation in Depression

NCT03152409
View directory record Official record
Conditions
Depression, Depressive Disorder, Major Depressive Disorder, Treatment Resistant Depression
Interventions
Aspirin 325mg, Placebo Oral Tablet
Drug
Lead sponsor
Jessica Harder
Other
Eligibility
18 Years to 65 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 30, 2024 · Synced Sep 17, 2026, 2:56 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Comparative Pharmacokinetic, Pharmacodynamic, and Safety Study of 1 Dose Level of Aspirin for Injection and Oral Aspirin Tablets in Healthy Adult Human Subjects

NCT05166096
View directory record Official record
Conditions
Healthy
Interventions
Rho-11, aspirin 325mg
Drug
Lead sponsor
Rhoshan Pharmaceuticals Inc
Industry
Eligibility
18 Years to 55 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Sep 17, 2026, 2:56 PM EDT
Completed Phase 2 Interventional Results available

LIPS-A: Lung Injury Prevention Study With Aspirin

NCT01504867
View directory record Official record
Conditions
Acute Respiratory Distress Syndrome
Interventions
Aspirin, Lactose powder
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
16
States / cities
Stanford, California • Bridgeport, Connecticut • Gainsville, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Mar 5, 2017 · Synced Sep 17, 2026, 2:56 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

The Accuracy Of A Novel Platelet Activity Assay In Humans On Antiplatelet Agents: Pharmacodynamics And Comparison With Light Transmission Aggregometry

NCT04822363
View directory record Official record
Conditions
Platelet Activation Testing Before/After Anti-platelet Therapy, Healthy
Interventions
Aspirin, Clopidogrel
Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
112 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 21, 2026 · Synced Sep 17, 2026, 2:56 PM EDT
Completed Phase 2 Interventional

Aspirin as an Ultraviolet (UV) Protectant in Human Subjects at Risk for Melanoma

NCT04066725
View directory record Official record
Conditions
Melanoma (Skin)
Interventions
Aspirin 81 mg, Aspirin 325mg, Placebo oral tablet
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Feb 17, 2022 · Synced Sep 17, 2026, 2:56 PM EDT
Enrolling by invitation Phase 4 Interventional Accepts healthy volunteers

PFA 100 Evaluation and Reference Interval HOACNY

NCT06100510
View directory record Official record
Conditions
Effect of Drug
Interventions
Aspirin 325mg
Drug
Lead sponsor
Hematology Oncology Associates of Central New York
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
East Syracuse, New York
Source: ClinicalTrials.gov public record
Updated Oct 2, 2024 · Synced Sep 17, 2026, 2:56 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

GM03 - Platelet RNA Signatures of Aspirin

NCT05278637
View directory record Official record
Conditions
Platelet Aggregation Inhibitors, Aspirin, Ticagrelor, RNA
Interventions
Aspirin, Ticagrelor
Drug
Lead sponsor
Duke University
Other
Eligibility
30 Years to 75 Years
Enrollment
135 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 13, 2022 · Synced Sep 17, 2026, 2:56 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Endoscopic Evaluation of Upper Gastrointestinal (GI) Mucosal Damage Induced by PL-2200 Versus Aspirin in Healthy Volunteers

NCT00872534
View directory record Official record
Conditions
Upper Gastrointestinal Mucosal Damage
Interventions
acetylsalicylic acid
Drug
Lead sponsor
PLx Pharma
Industry
Eligibility
50 Years to 75 Years
Enrollment
204 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
6
States / cities
Jupiter, Florida • South Miami, Florida • Oklahoma City, Oklahoma + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 10, 2015 · Synced Sep 17, 2026, 2:56 PM EDT
Enrolling by invitation Phase 4 Interventional

LMWH vs Aspirin for VTE Prophylaxis in Orthopaedic Oncology

NCT03244020
View directory record Official record
Conditions
Sarcoma, Soft Tissue Sarcoma, Bone Sarcoma, Bone Metastases, Venous Thromboembolism, Hematoma, Anticoagulant-induced Bleeding
Interventions
Aspirin 325mg, Enoxaparin 40Mg/0.4mL Prefilled Syringe
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
2,868 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2028
U.S. locations
10
States / cities
Los Angeles, California • Tampa, Florida • New Orleans, Louisiana + 5 more
Source: ClinicalTrials.gov public record
Updated Oct 2, 2025 · Synced Sep 17, 2026, 2:56 PM EDT
Completed Phase 2 Interventional

Use Of SB424323 With Aspirin In Non-Valvular Atrial Fibrillation In Patients At A Low Or Intermediate Risk For Stroke

NCT00240643
View directory record Official record
Conditions
Fibrillation, Atrial, Atrial Fibrillation
Interventions
SB424323
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 75 Years
Enrollment
640 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
9
States / cities
Mobile, Alabama • Troy, Michigan • Akron, Ohio + 6 more
Source: ClinicalTrials.gov public record
Updated Jan 15, 2017 · Synced Sep 17, 2026, 2:56 PM EDT
Not listed Phase 3 Interventional Accepts healthy volunteers

Pain Management After Shoulder Arthroplasty

NCT04872270
View directory record Official record
Conditions
Caffeine, Pain, Joint
Interventions
Total Shoulder Arthroplasty, Caffeine Pill, Percocet 10Mg-325Mg Tablet, Zofran 4Mg Tablet
Procedure · Drug
Lead sponsor
Rothman Institute Orthopaedics
Other
Eligibility
55 Years and older
Enrollment
160 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 3, 2021 · Synced Sep 17, 2026, 2:56 PM EDT
Recruiting Phase 3 Interventional

Anticoagulation for New-Onset Post-Operative Atrial Fibrillation After CABG

NCT04045665
View directory record Official record
Conditions
Atrial Fibrillation, Stroke, Bleeding
Interventions
Antiplatelet-only strategy, Oral Anticoagulant plus background antiplatelet therapy
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
3,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
51
States / cities
Little Rock, Arkansas • Los Angeles, California • Stanford, California + 40 more
Source: ClinicalTrials.gov public record
Updated Jun 25, 2026 · Synced Sep 17, 2026, 2:56 PM EDT
Active, not recruiting Phase 2 Interventional

Study of Aspirin in Patients With Vestibular Schwannoma

NCT03079999
View directory record Official record
Conditions
Vestibular Schwannoma, Acoustic Neuroma, Neurofibromatosis 2
Interventions
Aspirin, Placebo
Drug
Lead sponsor
Massachusetts Eye and Ear Infirmary
Other
Eligibility
12 Years and older
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2029
U.S. locations
5
States / cities
Stanford, California • Miami, Florida • Boston, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 17, 2025 · Synced Sep 17, 2026, 2:56 PM EDT
Active, not recruiting Not applicable Interventional Results available

ASPirin Intervention for the REDuction of Colorectal Cancer Risk

NCT02394769
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Aspirin, Placebo for Aspirin
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 80 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2029
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 3, 2025 · Synced Sep 17, 2026, 2:56 PM EDT
Not listed Not applicable Interventional

Prospective Study Investigating Aspirin and Intraoperative Blood Loss and Complications Following Inguinal Hernia Repair

NCT02084615
View directory record Official record
Conditions
Hernia, Inguinal, Postoperative Complications, Postoperative Hemorrhage
Interventions
Aspirin
Drug
Lead sponsor
Jesse Brown VA Medical Center
Federal
Eligibility
18 Years and older · Male only
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 17, 2015 · Synced Sep 17, 2026, 2:56 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Effects of Psyllium on Niacin Tolerability

NCT03370848
View directory record Official record
Conditions
Flushing, Hyperlipidemias, Dyslipidemias
Interventions
Psyllium, Aspirin
Dietary Supplement · Drug
Lead sponsor
VA Greater Los Angeles Healthcare System
Federal
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Dec 11, 2017 · Synced Sep 17, 2026, 2:56 PM EDT
Recruiting Phase 3 Interventional

Trial to Determine Effective Aspirin Dose in COPD

NCT05265299
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive
Interventions
Aspirin 81mg, Aspirin 162 mg, Aspirin 325mg
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
40 Years to 80 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 15, 2026 · Synced Sep 17, 2026, 2:56 PM EDT