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ClinicalTrials.gov public records Last synced Oct 23, 2026, 5:01 PM EDT

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Showing 1–24 of 56 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Aspirin Prophylaxis Clear all
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 25, 2016 · Synced Oct 23, 2026, 5:01 PM 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 6, 2019 · Synced Oct 23, 2026, 5:01 PM EDT
Completed Phase 3 Interventional Results available

Study to Evaluate the Incidence of Gastric Ulcers Following Administration of Either PA32540 or Enteric Coated Aspirin 325 mg in Subjects Who Are at Risk for Developing Aspirin-Associated Ulcers

NCT00960869
View directory record Official record
Conditions
Gastric Ulcer
Interventions
PA32540, EC-Aspirin 325 mg
Drug
Lead sponsor
POZEN
Industry
Eligibility
55 Years and older
Enrollment
519 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 17, 2016 · Synced Oct 23, 2026, 5:01 PM 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 30, 2012 · Synced Oct 23, 2026, 5:01 PM 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 9, 2025 · Synced Oct 23, 2026, 5:01 PM EDT
Not yet recruiting Phase 2Phase 3 Interventional

Efficacy and Safety of Aspirin and Lansoprazole for Prevention of Preterm Birth in High-Risk Pregnant Women: A Biomarker-Enriched Trial

NCT07337655
View directory record Official record
Conditions
Pre-term Birth
Interventions
Low-Dose Aspirin Dose: 81 mg & Lansoprazole Dose: 30 mg, Standard of Care
Drug · Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
670 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2032
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jan 13, 2026 · Synced Oct 23, 2026, 5:01 PM EDT
Terminated Phase 4 Interventional Results available

Aspirin and Enoxaparin for VTE in Trauma

NCT02396732
View directory record Official record
Conditions
Venous Thromboembolism, Thromboprophylaxis, Trauma
Interventions
Aspirin, Enoxaparin
Drug
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Nov 19, 2019 · Synced Oct 23, 2026, 5:01 PM 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 19, 2009 · Synced Oct 23, 2026, 5:01 PM 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 14, 2026 · Synced Oct 23, 2026, 5:01 PM EDT
Completed Phase 3 Interventional Results available

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

NCT00249873
View directory record Official record
Conditions
Atrial Fibrillation, Vascular Risk
Interventions
clopidogrel (SR25990C), placebo
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years and older
Enrollment
7,554 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 Jun 15, 2015 · Synced Oct 23, 2026, 5:01 PM EDT
Completed Phase 3 Interventional Results available

A Study to Evaluate the Incidence of Gastric Ulcers Following Administration of Either PA32540 or Enteric Coated Aspirin 325 mg in Subjects Who Are at Risk for Developing Aspirin-Associated Ulcers

NCT00961350
View directory record Official record
Conditions
Gastric Ulcer
Interventions
PA32540, EC Aspirin 325
Drug
Lead sponsor
POZEN
Industry
Eligibility
55 Years and older
Enrollment
530 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 18, 2016 · Synced Oct 23, 2026, 5:01 PM EDT
Active, not recruiting Phase 4 Interventional Accepts healthy volunteers

Low Dose Aspirin for Preterm Preeclampsia Preventionmg/day Dose in High-risk Patients

NCT05514847
View directory record Official record
Conditions
Preeclampsia, Pregnancy Related
Interventions
Aspirin 81Mg Ec Tab, Aspirin 162Mg Ec Tab
Drug
Lead sponsor
University of Virginia
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 15, 2025 · Synced Oct 23, 2026, 5:01 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Aspirin Dose and Atherosclerosis in Patients With Heart Disease

NCT00272337
View directory record Official record
Conditions
Cardiovascular Diseases, Atherosclerosis, Myocardial Infarction
Interventions
Aspirin
Drug
Lead sponsor
Florida Atlantic University
Other
Eligibility
40 Years to 80 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2009
U.S. locations
2
States / cities
Atlantis, Florida • Tamarac, Florida
Source: ClinicalTrials.gov public record
Updated Dec 28, 2018 · Synced Oct 23, 2026, 5:01 PM EDT
Completed Phase 2 Interventional Results available

PETRO Stroke Prevention in Patients With AF by Treatment With Dabigatran, With and Without Aspirin, Compared to Warfarin

NCT01227629
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
dabigatran with ASA, warfarin, dabigatran without ASA
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years and older
Enrollment
502 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2003
U.S. locations
14
States / cities
Fayetteville, Arkansas • La Mesa, California • Pensacola, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated May 5, 2014 · Synced Oct 23, 2026, 5:01 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 17, 2011 · Synced Oct 23, 2026, 5:01 PM 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 26, 2018 · Synced Oct 23, 2026, 5:01 PM EDT
Terminated Early Phase 1 Interventional

Low-Dose Acetylsalicylic Acid in Treating Patients With Stage I-III Non-Small Cell Lung Cancer

NCT01707823
View directory record Official record
Conditions
Adenocarcinoma of the Lung, Recurrent Non-small Cell Lung Cancer, Stage IA Non-small Cell Lung Cancer, Stage IB Non-small Cell Lung Cancer, Stage IIA Non-small Cell Lung Cancer, Stage IIB Non-small Cell Lung Cancer, Stage IIIA Non-small Cell Lung Cancer, Stage IIIB Non-small Cell Lung Cancer
Interventions
acetylsalicylic acid, laboratory biomarker analysis
Drug · Other
Lead sponsor
Vanderbilt-Ingram Cancer Center
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 14, 2020 · Synced Oct 23, 2026, 5:01 PM EDT
Terminated Phase 2 Interventional Results available

Aspirin Prophylaxis for Venous Thromboembolism in Glioblastoma

NCT00790452
View directory record Official record
Conditions
Glioblastoma
Interventions
Aspirin, Placebo
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 8, 2011 · Synced Oct 23, 2026, 5:01 PM 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 2, 2022 · Synced Oct 23, 2026, 5:01 PM EDT
Not yet recruiting Not applicable Interventional

Clinician Notification to Increase Aspirin Prophylaxis for Preeclampsia Prevention

NCT07614893
View directory record Official record
Conditions
Preeclampsia, Hypertensive Disorders of Pregnancy (HDP), Pregnancy Complications, Aspirin Prophylaxis
Interventions
Clinician notification of elevated preeclampsia risk
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older · Female only
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2030
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 29, 2026 · Synced Oct 23, 2026, 5:01 PM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers

Adherence to Universal Aspirin Compared to Screening Indicated Aspirin for Prevention of Preeclampsia

NCT04797949
View directory record Official record
Conditions
Medication Adherence, Preeclampsia
Interventions
Low-dose aspirin
Drug
Lead sponsor
Women and Infants Hospital of Rhode Island
Other
Eligibility
18 Years and older · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Apr 4, 2025 · Synced Oct 23, 2026, 5:01 PM 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 26, 2022 · Synced Oct 23, 2026, 5:01 PM 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 5, 2022 · Synced Oct 23, 2026, 5:01 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Early Prevention of Preeclampsia Study

NCT01547390
View directory record Official record
Conditions
Preeclampsia
Interventions
Aspirin, placebo
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
Female only
Enrollment
104 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 29, 2018 · Synced Oct 23, 2026, 5:01 PM EDT