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ClinicalTrials.gov public records Last synced Oct 11, 2026, 5:46 AM EDT

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Showing 169–192 of 588 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Aspirin (ASA) Clear all
Completed No phase listed Observational Accepts healthy volunteers

Aspirin and Thienopyridine Resistance in Peripheral Arterial Disease

NCT03174990
View directory record Official record
Conditions
Peripheral Arterial Disease, Clopidogrel, Poor Metabolism of
Interventions
Not listed
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
195 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Jun 5, 2017 · Synced Oct 11, 2026, 5:46 AM 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 16, 2026 · Synced Oct 11, 2026, 5:46 AM EDT
Suspended No phase listed Observational Accepts healthy volunteers

Genetics and Genomics of Aspirin Exacerbated Respiratory Disease (AERD)

NCT04261582
View directory record Official record
Conditions
Aspirin Exacerbated Respiratory Disease, Aspirin-Sensitive Asthma, Nasal Polyps
Interventions
Not listed
Lead sponsor
National Jewish Health
Other
Eligibility
18 Years to 75 Years
Enrollment
245 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 1, 2021 · Synced Oct 11, 2026, 5:46 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Prematurity Risk Assessment Combined With Clinical Interventions for Improving Neonatal outcoMEs

NCT04301518
View directory record Official record
Conditions
Preterm Labor, Preterm Birth
Interventions
Multimodal intervention strategy
Other
Lead sponsor
Sera Prognostics, Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
6,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
18
States / cities
San Diego, California • New Haven, Connecticut • Newark, Delaware + 15 more
Source: ClinicalTrials.gov public record
Updated Dec 6, 2024 · Synced Oct 11, 2026, 5:46 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety, Tolerability, Pharmacokinetics and Pharmacodynamics Study of AZD3366 in Healthy Subjects, Japanese and Chinese Subjects

NCT04588727
View directory record Official record
Conditions
Cardiovascular Disease
Interventions
AZD3366, Placebo, Ticagrelor, acetylsalicylic acid (ASA)
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 55 Years
Enrollment
103 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Glendale, California
Source: ClinicalTrials.gov public record
Updated Dec 18, 2023 · Synced Oct 11, 2026, 5:46 AM EDT
Completed Phase 3 Interventional

Aggrenox Prevention of Access Stenosis

NCT00067119
View directory record Official record
Conditions
Kidney Failure
Interventions
Aggrenox, Placebo
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years and older
Enrollment
649 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
9
States / cities
Birmingham, Alabama • Iowa City, Iowa • Portland, Maine + 6 more
Source: ClinicalTrials.gov public record
Updated Sep 19, 2017 · Synced Oct 11, 2026, 5:46 AM EDT
Active, not recruiting Not applicable Interventional

Thromboelastography With Platelet Mapping to Guide Antiplatelet Therapy After Lower Extremity Revascularization

NCT07597239
View directory record Official record
Conditions
Thrombosis, Arterial Occlusive Diseases, Thromboelastography (TEG), Peripheral Arterial Disease(PAD), Stent Thrombosis, Platelet Inhibition, PRU(Platelet Reactivity Unit)
Interventions
Aspirin, Clopidogrel, Ticagrelor, Platelet Reactivity Testing, Thromboelastography with Platelet Mapping
Drug · Diagnostic Test
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
60 Years and older
Enrollment
514 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 9, 2026 · Synced Oct 11, 2026, 5:46 AM 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 9, 2026 · Synced Oct 11, 2026, 5:46 AM 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 14, 2015 · Synced Oct 11, 2026, 5:46 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of the Nottingham Augmented Reality (AR) App for Arthritis Hand Joint Pain

NCT05634291
View directory record Official record
Conditions
Chronic Pain, Arthritis Hand, Opioid Use
Interventions
Standard of care, Nottingham AR smartphone app with active intervention
Other · Device
Lead sponsor
VRx Medical Inc
Industry
Eligibility
21 Years to 80 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jul 25, 2023 · Synced Oct 11, 2026, 5:46 AM EDT
Completed Not applicable Interventional Results available

Anticoagulation With Enhanced Gastrointestinal Safety

NCT05563714
View directory record Official record
Conditions
Upper Gastrointestinal Bleeding, Peptic Ulcer Hemorrhage, Anticoagulant-induced Bleeding
Interventions
Clinician Notification with Nurse Facilitation (CNNF), Wait list control
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
341 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 30, 2024 · Synced Oct 11, 2026, 5:46 AM EDT
Terminated Phase 3 Interventional Results available

A Study of the Efficacy and Safety of Alteplase in Participants With Mild Stroke

NCT02072226
View directory record Official record
Conditions
Stroke
Interventions
Alteplase, Alteplase Placebo, Aspirin, Aspirin Placebo
Drug
Lead sponsor
Genentech, Inc.
Industry
Eligibility
18 Years and older
Enrollment
313 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
88
States / cities
Birmingham, Alabama • Phoenix, Arizona • Tucson, Arizona + 72 more
Source: ClinicalTrials.gov public record
Updated Jul 3, 2018 · Synced Oct 11, 2026, 5:46 AM EDT
Not listed Phase 4 Interventional

Efficacy of Different Anti-Thrombotic Strategies on Device-Related Thrombosis Prevention After Percutaneous Left Atrial Appendage Occlusion

NCT04502017
View directory record Official record
Conditions
Device-Related Thrombosis, Atrial Fibrillation, Left Atrial Appendage Occlusion
Interventions
ASA plus Clopidogrel, Genetic-Tailored AntiThrombotic Strategy, Half-Dose of novel OAC
Drug
Lead sponsor
Texas Cardiac Arrhythmia Research Foundation
Other
Eligibility
18 Years and older
Enrollment
360 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Aug 7, 2020 · Synced Oct 11, 2026, 5:46 AM EDT
Withdrawn Phase 2 Interventional

COX Inhibition and Biomarkers During Neoadjuvant Chemoendocrine Therapy for ER+, HER2- Stage I-III Breast Cancer

NCT04038489
View directory record Official record
Conditions
Breast Cancer, Estrogen Receptor-positive Breast Cancer
Interventions
Aspirin, Tamoxifen Pill, Doxorubicin, Cyclophosphamide, Paclitaxel
Drug
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Nov 22, 2021 · Synced Oct 11, 2026, 5:46 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Postpartum ASA and NT-proBNP

NCT05889468
View directory record Official record
Conditions
Blood Pressure
Interventions
Aspirin 81Mg Ec Tab, Placebo
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 60 Years · Female only
Enrollment
114 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 4, 2025 · Synced Oct 11, 2026, 5:46 AM EDT
Completed Not applicable Interventional Results available

XIENCE 28 USA Study

NCT03815175
View directory record Official record
Conditions
Bleeding Disorder, Ischemic Stroke, Hemorrhagic Stroke, Hematological Diseases, Thrombocytopenia, Coagulation Disorder, Anemia, Renal Insufficiency, Coronary Artery Disease
Interventions
XIENCE, DAPT (aspirin and/or P2Y12 receptor inhibitor)
Device · Drug
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years to 100 Years
Enrollment
1,605 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
54
States / cities
Huntsville, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 47 more
Source: ClinicalTrials.gov public record
Updated May 3, 2022 · Synced Oct 11, 2026, 5:46 AM EDT
Completed No phase listed Observational

Antiplatelet Activity of Aspirin in Infants After Aortopulmonary and Cavopulmonary Shunts

NCT01656993
View directory record Official record
Conditions
Congenital Heart Disease
Interventions
Not listed
Lead sponsor
University of Utah
Other
Eligibility
2 Days to 12 Months
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated May 5, 2017 · Synced Oct 11, 2026, 5:46 AM EDT
Terminated Phase 2 Interventional Results available

Aspirin and Antiretroviral Therapy in HIV Infected Patients

NCT00783614
View directory record Official record
Conditions
HIV Infection
Interventions
Aspirin 325mg, Antiretroviral therapy (ART)
Drug
Lead sponsor
Hennepin Healthcare Research Institute
Other
Eligibility
18 Years to 60 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 21, 2017 · Synced Oct 11, 2026, 5:46 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Aspirin Effects on Emotional Reactions

NCT04146532
View directory record Official record
Conditions
Healthy Adults
Interventions
Aspirin 500 MG, Placebo
Drug
Lead sponsor
Ohio State University
Other
Eligibility
18 Years and older · Male only
Enrollment
268 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 3, 2024 · Synced Oct 11, 2026, 5:46 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Evaluate Analgesic Efficacy of Fast Release Aspirin

NCT01122602
View directory record Official record
Conditions
Drugs, Investigational
Interventions
Acetylsalicyclic acid (Fast acting Aspirin, BAY1019036), Acetylsalicyclic acid (Aspirin, BAYE4465), Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
16 Years to 45 Years
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
2
States / cities
Austin, Texas • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Dec 19, 2018 · Synced Oct 11, 2026, 5:46 AM EDT
Completed Phase 2 Interventional

A Study of Aspirin and Clopidogrel in Patients With Idiopathic Pulmonary Arterial Hypertension

NCT00105209
View directory record Official record
Conditions
Hypertension, Pulmonary
Interventions
Aspirin, clopidogrel
Drug
Lead sponsor
Kawut, Steven, MD
Individual
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2003
U.S. locations
2
States / cities
New York, New York • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 11, 2026, 5:46 AM EDT
Terminated Phase 4 Interventional Results available

Non-cancer Pain and Cognitive Impairment: A Disabling Relationship

NCT01264965
View directory record Official record
Conditions
Arthritis, Pain, Cognitive Impairment
Interventions
long acting oxycodone, extra strength acetaminophen
Drug
Lead sponsor
University of Chicago
Other
Eligibility
65 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 11, 2020 · Synced Oct 11, 2026, 5:46 AM 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 22, 2026 · Synced Oct 11, 2026, 5:46 AM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers

CARNIVAL Study: Gut Flora Dependent Metabolism of Dietary CARNItine and Phosphatidylcholine and cardioVAscuLar Disease

NCT01731236
View directory record Official record
Conditions
Dietary Modification
Interventions
Carnitine, Choline, Antibiotics, Choline and Aspirin, Carnitine and Aspirin
Dietary Supplement · Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2029
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 23, 2026 · Synced Oct 11, 2026, 5:46 AM EDT