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ClinicalTrials.gov public records Last synced Sep 27, 2026, 8:41 PM EDT

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Showing 1–24 of 337 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Daily aspirin (ASA) Clear all
Enrolling by invitation Phase 3 Interventional

Reduce Opiate Exposure With ACL Surgery

NCT06561035
View directory record Official record
Conditions
Anterior Cruciate Ligament Injuries
Interventions
Opiate Sparing, Opiate Based
Drug
Lead sponsor
Campbell Clinic
Other
Eligibility
14 Years to 85 Years
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
3
States / cities
Skokie, Illinois • Cincinnati, Ohio • Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 14, 2026 · Synced Sep 27, 2026, 8:41 PM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers

Sleep and Inflammatory Resolution Pathway

NCT03377543
View directory record Official record
Conditions
Inflammatory Response, Inflammation, Sleep, Sleep Restriction
Interventions
Aspirin, Placebo
Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 23, 2025 · Synced Sep 27, 2026, 8:41 PM EDT
Terminated Phase 3 Interventional

Clopidogrel and the Optimization of Gastrointestinal Events (COGENT-1)

NCT00557921
View directory record Official record
Conditions
Acute Coronary Syndrome, Myocardial Infarction, Coronary Artery Disease, Percutaneous Coronary Intervention
Interventions
CGT-2168 (clopidogrel 75 mg/omeprazole 20 mg) and aspirin, Plavix (clopidogrel 75 mg) and aspirin
Drug
Lead sponsor
Cogentus Pharmaceuticals
Industry
Eligibility
21 Years and older
Enrollment
5,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
247
States / cities
Alexander City, Alabama • Birmingham, Alabama • Geneva, Alabama + 205 more
Source: ClinicalTrials.gov public record
Updated Jan 27, 2009 · Synced Sep 27, 2026, 8:41 PM EDT
Completed No phase listed Observational

Antenatal Platelet Response On Aspirin and Correlation With HDP (Hypertensive Disorders of Pregnancy)

NCT04295850
View directory record Official record
Conditions
Preeclampsia
Interventions
Aspirin 81 mg
Drug
Lead sponsor
Thomas Jefferson University
Other
Eligibility
10 Years to 60 Years · Female only
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Sep 27, 2026, 8:41 PM EDT
Completed Not applicable Interventional

Study of Optimal Clopidogrel Duration in Patients Receiving Drug Eluting Stents (SCORE Trial)

NCT00781573
View directory record Official record
Conditions
Myocardial Infarction
Interventions
Clopidogrel
Drug
Lead sponsor
North Texas Veterans Healthcare System
Federal
Eligibility
21 Years and older
Enrollment
167 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Sep 12, 2018 · Synced Sep 27, 2026, 8:41 PM EDT
Completed Phase 3 Interventional Results available

Atrial Fibrillation Clopidogrel Trial With Irbesartan for Prevention of Vascular Events (ACTIVE I)

NCT00249795
View directory record Official record
Conditions
Atrial Fibrillation, Cardiovascular Disease
Interventions
Irbesartan, placebo
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years and older
Enrollment
9,016 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2009
U.S. locations
1
States / cities
Bridgewater, New Jersey
Source: ClinicalTrials.gov public record
Updated Oct 14, 2010 · Synced Sep 27, 2026, 8:41 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 27, 2026, 8:41 PM EDT
Completed Phase 2 Interventional Results available

A Study of the Antiplatelet Effects Comparing Ticagrelor (Ticag. - AZD6140) With Clopidogrel (Clop.) Responder and Non-responders

NCT00642811
View directory record Official record
Conditions
Stable Coronary Artery Disease
Interventions
Ticagrelor, Clopidogrel, Aspirin
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years and older
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
4
States / cities
Jonesboro, Arkansas • Ormond Beach, Florida • Baltimore, Maryland + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 3, 2011 · Synced Sep 27, 2026, 8:41 PM EDT
Terminated Not applicable Interventional Results available

Dipyridamole Assessment for Flare Reduction in Systemic Lupus Erythematosus (SLE)

NCT01781611
View directory record Official record
Conditions
Systemic Lupus Erythematosus
Interventions
extended release dipyridamole 200mg/aspirin 25mg, 81mg aspirin
Drug
Lead sponsor
Oklahoma Medical Research Foundation
Other
Eligibility
18 Years to 70 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Nov 24, 2020 · Synced Sep 27, 2026, 8:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

PACT (Platelet Activity After Clopidogrel Termination)

NCT00619073
View directory record Official record
Conditions
Blood Platelets, Clopidogrel
Interventions
clopidogrel + aspirin, placebo, Aspirin
Drug
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
21 Years to 70 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 30, 2018 · Synced Sep 27, 2026, 8:41 PM EDT
Completed Phase 3 Interventional

Warfarin Versus Aspirin Recurrent Stroke Study

NCT00027066
View directory record Official record
Conditions
Stroke
Interventions
Active Aspirin, Active Warfarin, Aspirin placebo, Warfarin placebo
Drug
Lead sponsor
Columbia University
Other
Eligibility
30 Years to 85 Years
Enrollment
2,206 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1993 – 2001
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 16, 2011 · Synced Sep 27, 2026, 8:41 PM EDT
Completed Phase 4 Interventional Results available

Ticagrelor Versus Clopidogrel in Type 2 Diabetic Patients

NCT01823510
View directory record Official record
Conditions
Type-2 Diabetes Mellitus, Coronary Artery Disease
Interventions
Ticagrelor + Aspirin, Clopidogrel + Aspirin
Drug
Lead sponsor
Juan J Badimon
Other
Eligibility
18 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 7, 2017 · Synced Sep 27, 2026, 8:41 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

A Study to Learn About How Safe BAY3389934 is and How it Affects Blood Clotting When Given Alone or With Aspirin in Healthy Participants

NCT07652723
View directory record Official record
Conditions
Drug-drug Interaction
Interventions
Aspirin, BAY3389934
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 55 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Sep 22, 2026 · Synced Sep 27, 2026, 8:41 PM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

Chlorthalidone and HCTZ Impacts on Platelet Activation

NCT02100462
View directory record Official record
Conditions
Hypertension
Interventions
Chlorthalidone 12.5 mg, Hydrochlorothiazide 25 mg, Aspirin 81 mg
Drug
Lead sponsor
Creighton University
Other
Eligibility
19 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Dec 13, 2015 · Synced Sep 27, 2026, 8:41 PM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Low Dose Aspirin for the Prevention of Postpartum Related Breast Cancer

NCT05557877
View directory record Official record
Conditions
Breast Carcinoma
Interventions
Biospecimen Collection, Low-Dose Aspirin, Questionnaire Administration, Biopsy
Procedure · Drug · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
5
States / cities
Scottsdale, Arizona • Jacksonville, Florida • Indianapolis, Indiana + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 19, 2026 · Synced Sep 27, 2026, 8:41 PM EDT
Completed Not applicable Interventional

App Reminder on ASA Adherence

NCT03244267
View directory record Official record
Conditions
Thromboembolic Event
Interventions
Standard Education, Medication Reminder App
Behavioral
Lead sponsor
Emory University
Other
Eligibility
18 Years to 64 Years
Enrollment
195 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Oct 22, 2019 · Synced Sep 27, 2026, 8:41 PM EDT
Terminated Phase 3 Interventional Results available

Aspirin for Treatment of Multiple Sclerosis-Related Fatigue

NCT00467584
View directory record Official record
Conditions
Multiple Sclerosis, Fatigue
Interventions
High Dose Aspirin (1300 mg/day), Low Dose Aspirin (162 mg/day), Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2013
U.S. locations
1
States / cities
Scottsdale, Arizona
Source: ClinicalTrials.gov public record
Updated May 19, 2014 · Synced Sep 27, 2026, 8:41 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Role of ASpirin in Placental and Maternal Endothelial Cell Regulation IN Pre-eclampsia

NCT03893630
View directory record Official record
Conditions
Pre-Eclampsia
Interventions
Acetylsalicylic Acid 81 mg, Acetylsalicylic Acid 162 mg, Control
Drug · Other
Lead sponsor
John O'Brien, MD
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
208 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Aug 28, 2025 · Synced Sep 27, 2026, 8:41 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Effect of Aspirin Pretreatment or Slow Dose Titration on Flushing and Gastrointestinal Events in Healthy Volunteers Receiving Delayed-release Dimethyl Fumarate

NCT01568112
View directory record Official record
Conditions
Healthy
Interventions
BG00012 (dimethyl fumarate), BG00012 placebo, ASA, ASA placebo
Drug
Lead sponsor
Biogen
Industry
Eligibility
25 Years to 55 Years
Enrollment
173 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 12, 2016 · Synced Sep 27, 2026, 8:41 PM EDT
Completed Phase 4 Interventional Results available

The Influence of Smoking Status on Prasugrel and Clopidogrel Treated Subjects Taking Aspirin and Having Stable Coronary Artery Disease

NCT01260584
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Prasugrel, Clopidogrel
Drug
Lead sponsor
Daiichi Sankyo
Industry
Eligibility
18 Years to 74 Years
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
3
States / cities
Baltimore, Maryland • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 8, 2019 · Synced Sep 27, 2026, 8:41 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 27, 2026, 8:41 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Randomized, Crossover Bioequivalence Study of PL-ASA Versus Immediate Release Aspirin in Healthy Volunteers.

NCT05055752
View directory record Official record
Conditions
Bioequivalence
Interventions
Pharmaceutical-lipid aspirin (PL-ASA)
Drug
Lead sponsor
PLx Pharma
Industry
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Apr 26, 2022 · Synced Sep 27, 2026, 8:41 PM EDT
Completed Not applicable Interventional

DAILY: Vitamin D, Aspirin, ExercIse, Low Saturated Fat Foods StudY in Colorectal Cancer Patients With Minimal Residual Disease

NCT05036109
View directory record Official record
Conditions
Colorectal Cancer, Colon Cancer
Interventions
Aspirin, Vitamin D, Diet, Physical Activity, Behavioral Support Counseling Sessions
Drug · Dietary Supplement · Other + 1 more
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 9, 2026 · Synced Sep 27, 2026, 8:41 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 27, 2026, 8:41 PM EDT