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Showing 1–24 of 56 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Aspirin Prophylaxis Clear all
Terminated Phase 4 Interventional Results available

The Effect of Two Aspirin Dosing Strategies for Obese Women at High Risk for Preeclampsia

NCT03735433
View directory record Official record
Conditions
Preeclampsia
Interventions
162mg aspirin dose
Drug
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
152 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 28, 2024 · Synced Sep 7, 2026, 1:09 AM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Improving Prenatal Care to Reduce Early Onset Preeclampsia in Low-Income

NCT07491510
View directory record Official record
Conditions
Monitoring Blood Pressure, Aspirin Prophylaxis
Interventions
Active Comparator: Behavioral: Experimental: Centering HER (routine prenatal care + 7 doula-led 90-minute virtual group
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Aug 13, 2026 · Synced Sep 7, 2026, 1:09 AM EDT
Withdrawn Phase 3 Interventional

SAVES-IBD: Safety & Efficacy of Aspirin vs. Standard of Care for VTE Prophylaxis After IBD Surgery

NCT05104229
View directory record Official record
Conditions
Crohn Disease, Ulcerative Colitis, Venous Thromboembolism
Interventions
Aspirin 81Mg Ec Tab, Standard of Care
Drug
Lead sponsor
Stefan Holubar MD MS FACS, FASCRS
Other
Eligibility
18 Years to 100 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 17, 2024 · Synced Sep 7, 2026, 1:09 AM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

162 mg of Aspirin for Prevention of Preeclampsia

NCT05221164
View directory record Official record
Conditions
Preeclampsia
Interventions
Aspirin 162 mg
Drug
Lead sponsor
Methodist Medical Center of Illinois
Other
Eligibility
Female only
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Peoria, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 1, 2022 · Synced Sep 7, 2026, 1:09 AM EDT
Completed Phase 3 Interventional Results available

A Different Approach to Preventing Thrombosis

NCT02774265
View directory record Official record
Conditions
Venous Thromboembolism, Pulmonary Embolism
Interventions
VTE prophylaxis with Enoxaparin 30mg BID, VTE prophylaxis with Aspirin 81mg BID
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older
Enrollment
329 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 4, 2022 · Synced Sep 7, 2026, 1:09 AM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers

Aspirin (ASA) Therapy and Preeclampsia Prevention

NCT04158830
View directory record Official record
Conditions
Preeclampsia
Interventions
Aspirin 81 mg Enteric Coated Tab - 1 tablet, Aspirin 81 mg Enteric Coated Tab - 2 tablets
Drug
Lead sponsor
University of Tennessee
Other
Eligibility
14 Years to 50 Years · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 12, 2020 · Synced Sep 7, 2026, 1:09 AM EDT
Completed Early Phase 1 Interventional

A Trial of Omeprazole and Low Dose Aspirin to Identify Colorectal Biomarkers of Preventive Efficacy

NCT06378398
View directory record Official record
Conditions
Colorectal Neoplasia
Interventions
Omeprazole, Aspirin
Drug
Lead sponsor
University of Michigan Rogel Cancer Center
Other
Eligibility
18 Years to 75 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
2
States / cities
Ann Arbor, Michigan • Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 12, 2026 · Synced Sep 7, 2026, 1:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Testing a Community Intervention to Increase Aspirin Use

NCT02607917
View directory record Official record
Conditions
Myocardial Infarction, Stroke
Interventions
Mass Media plus clinic intervention., Media
Other
Lead sponsor
University of Minnesota
Other
Eligibility
45 Years to 75 Years
Enrollment
10,800 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2020
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 1, 2021 · Synced Sep 7, 2026, 1:09 AM EDT
Terminated Phase 3 Interventional

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

NCT00243178
View directory record Official record
Conditions
Atrial Fibrillation, Vascular Risk
Interventions
clopidogrel (SR25990C)
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years and older
Enrollment
6,706 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2005
U.S. locations
1
States / cities
Bridgewater, New Jersey
Source: ClinicalTrials.gov public record
Updated Oct 18, 2009 · Synced Sep 7, 2026, 1:09 AM EDT
Recruiting Phase 3 Interventional

REGN7508 Versus Acetylsalicylic Acid (ASA) for Venous Thromboprophylaxis After Total Knee Arthroplasty in Adult Participants

NCT07213778
View directory record Official record
Conditions
Symptomatic Venous Thromboembolism (VTE)
Interventions
REGN7508, Acetylsalicylic Acid (ASA), Placebo
Drug
Lead sponsor
Regeneron Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
29
States / cities
La Mesa, California • Rancho Mirage, California • Lone Tree, Colorado + 21 more
Source: ClinicalTrials.gov public record
Updated Aug 18, 2026 · Synced Sep 7, 2026, 1:09 AM EDT
Completed Phase 3 Interventional

Secondary Prevention of Small Subcortical Strokes Trial

NCT00059306
View directory record Official record
Conditions
Cerebrovascular Accident, Hypertension
Interventions
aspirin, clopidogrel, Target of Blood Pressure, placebo
Drug · Other
Lead sponsor
University of British Columbia
Other
Eligibility
30 Years and older
Enrollment
3,020 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2012
U.S. locations
39
States / cities
Mobile, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 32 more
Source: ClinicalTrials.gov public record
Updated Apr 3, 2013 · Synced Sep 7, 2026, 1:09 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Effectiveness of Higher Aspirin Dosing for Prevention of Preeclampsia in High Risk Obese Gravida

NCT03961360
View directory record Official record
Conditions
Pre-Eclampsia, Hypertension in Pregnancy, Obesity
Interventions
Aspirin 81 mg, Aspirin 162 mg
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 7, 2024 · Synced Sep 7, 2026, 1:09 AM EDT
Terminated Phase 3 Interventional Results available

AtRial Cardiopathy and Antithrombotic Drugs In Prevention After Cryptogenic Stroke

NCT03192215
View directory record Official record
Conditions
Stroke
Interventions
Apixaban, Aspirin
Drug
Lead sponsor
Columbia University
Other
Eligibility
45 Years and older
Enrollment
1,015 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
165
States / cities
Birmingham, Alabama • Mobile, Alabama • Chandler, Arizona + 111 more
Source: ClinicalTrials.gov public record
Updated Apr 8, 2025 · Synced Sep 7, 2026, 1:09 AM 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 7, 2026, 1:09 AM EDT
Completed Phase 4 Interventional Results available

Aspirin for Prevention of Venous Thromboembolism Among Ovarian Cancer Patients Receiving Neoadjuvant Chemotherapy

NCT04352439
View directory record Official record
Conditions
Venous Thromboembolism, Ovarian Cancer
Interventions
Aspirin
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years and older · Female only
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
2
States / cities
Sarasota, Florida • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 25, 2022 · Synced Sep 7, 2026, 1:09 AM EDT
Completed Not applicable Interventional Results available

Aspirin and Compression Devices for VTE Prophylaxis in Orthopaedic Oncology

NCT01696760
View directory record Official record
Conditions
Bone Metastases, Musculoskeletal Cancer, Soft Tissue Sarcoma, Thromboembolism
Interventions
acetylsalicylic acid, enoxaparin, PCD
Drug · Device
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 4, 2018 · Synced Sep 7, 2026, 1:09 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Aspirin in Reducing Events in the Elderly

NCT01038583
View directory record Official record
Conditions
Functional Disability, Dementia, Heart Disease, Stroke, Cancer, Bleeding, Depression
Interventions
100 mg enteric-coated aspirin, Placebo
Drug
Lead sponsor
Hennepin Healthcare Research Institute
Other
Eligibility
65 Years and older
Enrollment
19,114 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2024
U.S. locations
33
States / cities
Birmingham, Alabama • Palo Alto, California • Washington D.C., District of Columbia + 26 more
Source: ClinicalTrials.gov public record
Updated Apr 4, 2021 · Synced Sep 7, 2026, 1:09 AM EDT
Completed Phase 3 Interventional Results available

A Study to Assess the Efficacy and Safety of Enteric-Coated Acetylsalicylic Acid in Patients at Moderate Risk of Cardiovascular Disease

NCT00501059
View directory record Official record
Conditions
Moderate Risk of CVD
Interventions
Aspirin (Acetylsalicylic acid, BAYE4465), Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
55 Years and older
Enrollment
12,546 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2016
U.S. locations
73
States / cities
Birmingham, Alabama • Graysville, Alabama • Pell City, Alabama + 67 more
Source: ClinicalTrials.gov public record
Updated Oct 25, 2018 · Synced Sep 7, 2026, 1:09 AM EDT
Completed Phase 3 Interventional Results available

Dabigatran Etexilate for Secondary Stroke Prevention in Patients With Embolic Stroke of Undetermined Source (RE-SPECT ESUS)

NCT02239120
View directory record Official record
Conditions
Stroke, Secondary Prevention
Interventions
optional ASA as comedication, placebo to ASA, placebo to optional ASA as comedication, placebo to dabigatran etexilate, ASA 100 mg, dabigatran etexilate
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years to 150 Years
Enrollment
5,390 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
110
States / cities
Phoenix, Arizona • Beverly Hills, California • El Cajon, California + 94 more
Source: ClinicalTrials.gov public record
Updated Sep 5, 2019 · Synced Sep 7, 2026, 1:09 AM EDT
Completed Phase 4 Interventional Results available

DOACs for Stroke Prevention Post Ventricular Tachycardia Ablation

NCT02666742
View directory record Official record
Conditions
Ventricular Tachycardia, Premature Ventricular Contraction, Stroke
Interventions
DOAC, Aspirin
Drug
Lead sponsor
Kansas City Heart Rhythm Institute
Other
Eligibility
18 Years to 80 Years
Enrollment
246 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
4
States / cities
Kansas City, Kansas • Overland Park, Kansas • The Bronx, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 21, 2022 · Synced Sep 7, 2026, 1:09 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 2, 2025 · Synced Sep 7, 2026, 1:09 AM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers

Aspirin Dose Escalation for the Prevention of Recurrent Preterm Delivery Trial

NCT06980025
View directory record Official record
Conditions
Preterm Delivery, Obstetrical Complications
Interventions
162mg Aspirin, 81mg Aspirin
Drug
Lead sponsor
The George Washington University Biostatistics Center
Other
Eligibility
14 Years and older · Female only
Enrollment
1,800 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
14
States / cities
Birmingham, Alabama • San Francisco, California • Chicago, Illinois + 10 more
Source: ClinicalTrials.gov public record
Updated Apr 8, 2026 · Synced Sep 7, 2026, 1:09 AM EDT
Terminated Phase 2 Interventional

Comparison of Sulindac, Aspirin, and Ursodiol in Preventing Colorectal Cancer

NCT00062023
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Acetylsalicylic acid (Aspirin), Sulindac, Ursodiol, Sulindac Placebo
Drug · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
40 Years to 80 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 29, 2012 · Synced Sep 7, 2026, 1:09 AM 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 7, 2026, 1:09 AM EDT