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Showing 1–24 of 587 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Acetylsalicylic Acid Clear all
Completed Phase 3 Interventional Results available

Occluded Artery Trial (OAT)

NCT00004562
View directory record Official record
Conditions
Cardiovascular Diseases, Heart Diseases, Myocardial Infarction, Heart Failure, Congestive, Heart Failure
Interventions
Beta adrenergic blockers, Platelet inhibitors, PTCA and stents, ACE Inhibitors
Drug · Procedure
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
2,201 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 20, 2014 · Synced Sep 22, 2026, 12:43 PM EDT
Completed Phase 3 Interventional Results available

Randomized Trial of Pegylated Interferon Alfa-2a Versus Hydroxyurea in Polycythemia Vera (PV) and Essential Thrombocythemia (ET)

NCT01259856
View directory record Official record
Conditions
High Risk Polycythemia Vera, High Risk Essential Thrombocythemia
Interventions
PEGASYS, Hydroxyurea, Aspirin
Drug
Lead sponsor
Ronald Hoffman
Other
Eligibility
18 Years and older
Enrollment
168 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
16
States / cities
Scottsdale, Arizona • Los Angeles, California • Palo Alto, California + 10 more
Source: ClinicalTrials.gov public record
Updated Apr 29, 2019 · Synced Sep 22, 2026, 12:43 PM EDT
Completed Phase 4 Interventional Results available

Ticagrelor With Aspirin or Alone in High-Risk Patients After Coronary Intervention

NCT02270242
View directory record Official record
Conditions
Cardiovascular Disease, Interventional Cardiology
Interventions
Aspirin, Placebo, ticagrelor
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
9,006 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 12, 2021 · Synced Sep 22, 2026, 12:43 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Idiopathic Intracranial Hypertension Treatment Trial

NCT01003639
View directory record Official record
Conditions
Idiopathic Intracranial Hypertension
Interventions
Acetazolamide, Placebo, Formal weight loss counselling program
Drug · Behavioral
Lead sponsor
St. Luke's-Roosevelt Hospital Center
Other
Eligibility
18 Years to 60 Years
Enrollment
165 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
39
States / cities
Birmingham, Alabama • Los Angeles, California • Waterbury, Connecticut + 31 more
Source: ClinicalTrials.gov public record
Updated Dec 11, 2018 · Synced Sep 22, 2026, 12:43 PM EDT
Not listed Phase 4 Interventional

Excellence In Peripheral Artery Disease Thrombin Receptor Antagonist Intervention In Claudication Evaluation (XLPAD-TRACE Trial)

NCT02660866
View directory record Official record
Conditions
Peripheral Arterial Disease
Interventions
Placebo + background APT + SMT, Vorapaxar 2.08 mg/d + background APT + SMT.
Drug
Lead sponsor
North Texas Veterans Healthcare System
Federal
Eligibility
40 Years to 90 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
12
States / cities
Tucson, Arizona • San Diego, California • Denver, Colorado + 8 more
Source: ClinicalTrials.gov public record
Updated May 28, 2018 · Synced Sep 22, 2026, 12:43 PM EDT
Withdrawn No phase listed Observational

Registry Study to Evaluate the Performance and Safety of Roxwood Medical Catheters in Arteries of Participants With a Stenotic Lesion or Chronic Total Occlusion (CTO)

NCT04059536
View directory record Official record
Conditions
Chronic Total Occlusion, Atherosclerosis, Coronary Artery Disease, Peripheral Artery Disease
Interventions
Roxwood Anchoring Catheters, Acetylsalicylic Acid, Heparin
Device · Drug
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
25 Years to 80 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
11
States / cities
Phoenix, Arizona • Gainesville, Florida • Hobart, Indiana + 8 more
Source: ClinicalTrials.gov public record
Updated Jul 20, 2021 · Synced Sep 22, 2026, 12:43 PM EDT
Recruiting Phase 4 Interventional

Treatment With Aspirin After Preeclampsia: TAP Trial

NCT06281665
View directory record Official record
Conditions
Hypertensive Disorder of Pregnancy, Pre-Eclampsia, Hypertension, Eclampsia, Gestational Hypertension, Cardiovascular Diseases, Toxemia, Pregnancy Complications, Vascular Diseases, Hypertension, Pregnancy Induced, Hypertension;Pre-Eclamptic
Interventions
Low-dose aspirin, Placebo
Drug
Lead sponsor
Malamo Countouris
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Sep 22, 2026, 12:43 PM EDT
Completed Phase 3 Interventional Results available

Evaluation of a Flushing ASsessment Tool (FAST) in Subjects Receiving Niacin Extended-release Plus Aspirin

NCT00630877
View directory record Official record
Conditions
Dyslipidemia
Interventions
Niacin extended-release (NER), Niacin extended-release (NER) placebo, Aspirin (ASA), Aspirin (ASA) placebo
Drug
Lead sponsor
Abbott
Industry
Eligibility
18 Years and older
Enrollment
276 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
40
States / cities
Birmingham, Alabama • Anaheim, California • Walnut Creek, California + 35 more
Source: ClinicalTrials.gov public record
Updated Oct 8, 2009 · Synced Sep 22, 2026, 12:43 PM EDT
Not listed Not applicable Interventional

Strategies to Prevent Transcatheter Heart Valve Dysfunction in Low Risk Transcatheter Aortic Valve Replacement

NCT03557242
View directory record Official record
Conditions
Aortic Stenosis
Interventions
TAVR, Warfarin plus Aspirin, Aspirin Only
Device · Other
Lead sponsor
Medstar Health Research Institute
Other
Eligibility
Not listed
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
7
States / cities
San Diego, California • Washington D.C., District of Columbia • Ridgewood, New Jersey + 4 more
Source: ClinicalTrials.gov public record
Updated Jan 3, 2022 · Synced Sep 22, 2026, 12:43 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 22, 2026, 12:43 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 22, 2026, 12:43 PM EDT
Terminated Phase 4 Interventional Results available

Study of Ticagrelor Versus Aspirin Treatment in Patients With Myocardial Injury Post Major Non-cardiac Surgery

NCT02291419
View directory record Official record
Conditions
Myocardial Injury
Interventions
ticagrelor, aspirin
Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
40 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
24
States / cities
Mobile, Alabama • Little Rock, Arkansas • Jacksonville, Florida + 19 more
Source: ClinicalTrials.gov public record
Updated Feb 8, 2017 · Synced Sep 22, 2026, 12:43 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 22, 2026, 12:43 PM EDT
Completed Phase 2 Interventional Results available

Therapeutic Control of Aspirin-Exacerbated Respiratory Disease (Aspirin)

NCT01597375
View directory record Official record
Conditions
Asthma, Aspirin-Induced, Aspirin Exacerbated Asthma
Interventions
Placebo Oral Tablet, Prasugrel Oral Tablet
Drug
Lead sponsor
Elliot Israel, MD
Other
Eligibility
18 Years to 65 Years
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 18, 2019 · Synced Sep 22, 2026, 12:43 PM EDT
Completed Not applicable Interventional Results available

Delaware Physical Exercise and Activity for Knee Osteoarthritis

NCT04980300
View directory record Official record
Conditions
Knee Osteoarthritis
Interventions
Intervention, Control
Behavioral
Lead sponsor
University of Delaware
Other
Eligibility
45 Years and older
Enrollment
103 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Newark, Delaware
Source: ClinicalTrials.gov public record
Updated Dec 31, 2024 · Synced Sep 22, 2026, 12:43 PM EDT
Recruiting Phase 4 Interventional

Aspirin and Hemocompatibility Events in Chronic Advanced Heart Failure Patients With Assist Device

NCT06655376
View directory record Official record
Conditions
Bleeding, Clot Blood
Interventions
Aspirin, Warfarin
Drug
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
128 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
3
States / cities
Chicago, Illinois • New York, New York • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 26, 2026 · Synced Sep 22, 2026, 12:43 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluating the Need for Pneumatic Compression Devices

NCT02641080
View directory record Official record
Conditions
Osteoarthritis
Interventions
Aspirin, Portable Compression Device
Drug · Device
Lead sponsor
West Virginia University
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Morgantown, West Virginia
Source: ClinicalTrials.gov public record
Updated Nov 5, 2020 · Synced Sep 22, 2026, 12:43 PM EDT
Active, not recruiting Not applicable Interventional

SIMPLAAFY Clinical Trial

NCT06521463
View directory record Official record
Conditions
Atrial Fibrillation, Stroke, Bleeding
Interventions
WATCHMAN FLX Pro LAAC Device
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
1,857 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
86
States / cities
Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 78 more
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Sep 22, 2026, 12:43 PM EDT
Completed Phase 3 Interventional Results available

Atherosclerosis Prevention in Pediatric Lupus Erythematosus (APPLE)

NCT00065806
View directory record Official record
Conditions
Lupus Erythematosus, Systemic
Interventions
Atorvastatin, Placebo atorvastatin
Drug
Lead sponsor
Laura Schanberg
Other
Eligibility
10 Years to 21 Years
Enrollment
221 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2009
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 14, 2013 · Synced Sep 22, 2026, 12:43 PM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

COMT on Aspirin Platelets Effects (CAPE)

NCT03433586
View directory record Official record
Conditions
Cardiovascular Diseases
Interventions
Aspirin 81 mg, Placebo
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 40 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 24, 2021 · Synced Sep 22, 2026, 12:43 PM EDT
Not yet recruiting No phase listed Observational

Perioperative Risk in Patients on Chronic Aspirin Undergoing Craniotomy

NCT07086183
View directory record Official record
Conditions
Aneurysm Cerebral
Interventions
Observation
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 6, 2026 · Synced Sep 22, 2026, 12:43 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Postoperative Aspirin and Ankle Fracture Healing

NCT03765619
View directory record Official record
Conditions
Ankle Fractures
Interventions
Aspirin
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 110 Years
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jan 12, 2025 · Synced Sep 22, 2026, 12:43 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Aspirin Resistance in Systemic Lupus Erythematosus (SLE)

NCT00731302
View directory record Official record
Conditions
Systemic Lupus Erythematosus
Interventions
aspirin and meloxicam
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2017
U.S. locations
2
States / cities
Boston, Massachusetts • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 6, 2017 · Synced Sep 22, 2026, 12:43 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Determining Genetic Role in Treatment Response to Anti-Platelet Interventions (The PAPI Study)

NCT00799396
View directory record Official record
Conditions
Platelet Aggregation Inhibitors, Coronary Heart Disease
Interventions
Clopidogrel, Aspirin
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
20 Years and older
Enrollment
682 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2012
U.S. locations
1
States / cities
Lancaster, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 23, 2022 · Synced Sep 22, 2026, 12:43 PM EDT