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ClinicalTrials.gov public records Last synced Oct 9, 2026, 1:39 AM EDT

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Showing 73–96 of 182 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Aspirin placebo Clear all
Not listed Phase 1 Interventional Accepts healthy volunteers

In-Vivo Bleeding Volume Test for Platelet-Aspirin Interaction

NCT01047722
View directory record Official record
Conditions
Healthy
Interventions
Aspirin ingestion followed by doing a Bleeding Volume Test, Gatorade Placebo followed by Bleeding Volume Test.
Drug · Procedure
Lead sponsor
Klein, Jeffrey A., M.D.
Individual
Eligibility
18 Years to 89 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
2
States / cities
Newport Beach, California • San Juan Capistrano, California
Source: ClinicalTrials.gov public record
Updated Jul 21, 2015 · Synced Oct 9, 2026, 1:39 AM EDT
Completed Phase 4 Interventional

Colesevelam Treatment for Impaired Fasting Glucose During Niacin Therapy

NCT01239004
View directory record Official record
Conditions
Dyslipidemia, Hyperlipidemia, Hyperglycemia
Interventions
Placebo, Colesevelam
Drug
Lead sponsor
Radiant Research
Other
Eligibility
18 Years and older
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
4
States / cities
Chicago, Illinois • Kansas City, Kansas • Minneapolis, Minnesota + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 6, 2012 · Synced Oct 9, 2026, 1:39 AM EDT
Completed Phase 4 Interventional Results available

Effectiveness of Intensive Lipid Modification Medication in Preventing the Progression of Peripheral Arterial Disease (The ELIMIT Study)

NCT00687076
View directory record Official record
Conditions
Peripheral Arterial Disease
Interventions
Ezetimibe, Niaspan, Statin therapy, Standard care, Aspirin, Clopidogrel, Placebo Niaspan, Placebo Ezetimibe, Percutaneous transluminal angioplasty (PTA)
Drug · Behavioral · Procedure
Lead sponsor
Baylor College of Medicine
Other
Eligibility
40 Years to 80 Years
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 6, 2020 · Synced Oct 9, 2026, 1:39 AM EDT
Completed Phase 3 Interventional Results available

Rivaroxaban for the Prevention of Major Cardiovascular Events in Coronary or Peripheral Artery Disease

NCT01776424
View directory record Official record
Conditions
Prevention & Control
Interventions
Rivaroxaban (Xarelto, BAY59-7939), Aspirin, Aspirin placebo, Rivaroxaban placebo, Pantoprazole, Pantoprazole placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older
Enrollment
27,395 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2021
U.S. locations
53
States / cities
Birmingham, Alabama • Mobile, Alabama • Anaheim, California + 49 more
Source: ClinicalTrials.gov public record
Updated Nov 28, 2022 · Synced Oct 9, 2026, 1:39 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Aspirin on Mammogram Density in Healthy Postmenopausal Women With a Moderate or High Level of Breast Density

NCT00470561
View directory record Official record
Conditions
Mammographic Breast Density
Interventions
Aspirin, Placebo
Drug
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
55 Years to 75 Years · Female only
Enrollment
144 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Nov 15, 2010 · Synced Oct 9, 2026, 1:39 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 9, 2026, 1:39 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
36
States / cities
La Mesa, California • Rancho Mirage, California • Riverside, California + 28 more
Source: ClinicalTrials.gov public record
Updated Oct 8, 2026 · Synced Oct 9, 2026, 1:39 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

The Effects of Aspirin and Acetaminophen on the Stomach in Healthy Volunteers

NCT00594867
View directory record Official record
Conditions
Healthy
Interventions
Acetaminophen - 4 grams per day + Placebo, Aspirin - 325 mg per day + Placebo, Acetaminophen 4 gram per day + Aspirin 325 mg per day
Drug
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years to 75 Years
Enrollment
94 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 15, 2019 · Synced Oct 9, 2026, 1:39 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Alternate Dosing Regimens of BG00012 in Healthy Volunteers

NCT01281111
View directory record Official record
Conditions
Healthy
Interventions
Dimethyl Fumarate (BG00012), Aspirin, BG00012 matching placebo, ASA matching placebo
Drug
Lead sponsor
Biogen
Industry
Eligibility
18 Years to 55 Years
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 23, 2023 · Synced Oct 9, 2026, 1:39 AM EDT
Not yet recruiting Early Phase 1 Interventional Accepts healthy volunteers

Timed Aspirin Chronobiome Study

NCT03590821
View directory record Official record
Conditions
Healthy
Interventions
Aspirin 81 mg, Celecoxib 200mg capsule
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2027 – 2028
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 29, 2026 · Synced Oct 9, 2026, 1:39 AM EDT
Recruiting Not applicable Interventional

Impact of Biophoton Therapy on Chronic Severe Arthritis Pain

NCT06915012
View directory record Official record
Conditions
Arthritis
Interventions
Tesla BioHealing(R) Biophoton Generators
Device
Lead sponsor
First Institute of All Medicines
Other
Eligibility
18 Years to 80 Years
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Butler, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 22, 2026 · Synced Oct 9, 2026, 1:39 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Anti-Platelets in Chronic Obstructive Pulmonary Disease

NCT05567562
View directory record Official record
Conditions
COPD, Emphysema, Emphysema or COPD
Interventions
dual anti-platelet therapy, Placebo
Combination Product · Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
50 Years to 80 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Oct 9, 2026, 1:39 AM EDT
Completed Phase 4 Interventional Results available

A Study of Apixaban in Patients With Atrial Fibrillation, Not Caused by a Heart Valve Problem, Who Are at Risk for Thrombosis (Blood Clots) Due to Having Had a Recent Coronary Event, Such as a Heart Attack or a Procedure to Open the Vessels of the Heart

NCT02415400
View directory record Official record
Conditions
Acute Coronary Syndromes
Interventions
Apixaban, vitamin K antagonist, Acetylsalicylic acid, Acetylsalicylic acid placebo
Drug · Other
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 95 Years
Enrollment
4,614 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
143
States / cities
Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 125 more
Source: ClinicalTrials.gov public record
Updated Jun 11, 2020 · Synced Oct 9, 2026, 1:39 AM EDT
Completed Phase 2 Interventional Results available

Oral Ifetroban to Treat Aspirin Exacerbated Respiratory Disease (AERD)

NCT03028350
View directory record Official record
Conditions
Asthma, Aspirin-Induced
Interventions
Ifetroban Oral Capsule, Placebo Oral Capsule
Drug
Lead sponsor
Cumberland Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
16
States / cities
Tucson, Arizona • Lancaster, California • San Diego, California + 13 more
Source: ClinicalTrials.gov public record
Updated Jul 10, 2024 · Synced Oct 9, 2026, 1:39 AM EDT
Completed Phase 2 Interventional Results available

Aspirin in Preventing Colorectal Cancer in Patients at Increased Risk of Colorectal Cancer

NCT00468910
View directory record Official record
Conditions
Colon Cancer, Precancerous Condition, Rectal Cancer
Interventions
acetylsalicylic acid, placebo, laboratory biomarker analysis
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
Up to 75 Years
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 31, 2017 · Synced Oct 9, 2026, 1:39 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Effect of Aspirin on Hemostatic and Vascular Function After Live Fire Fighting

NCT01276691
View directory record Official record
Conditions
Cardiovascular Risk Factor, C.Medical Procedure; Vascular, Functional or Late, Electrolyte and Fluid Balance Conditions
Interventions
81 mg enteric coated aspirin
Drug
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
40 Years to 60 Years · Male only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Champaign, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 21, 2020 · Synced Oct 9, 2026, 1:39 AM EDT
Completed Phase 4 Interventional Results available

Ketamine Infusion Therapy for the Management of Acute Pain in Adult Rib Fracture Patients

NCT02432456
View directory record Official record
Conditions
Wounds and Injuries, Rib Fractures
Interventions
Ketamine, Placebo, Intercostal Nerve Block, Acetaminophen, Ibuprofen, Pantoprazole, Methocarbamol, Opioid
Drug · Procedure
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older
Enrollment
153 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 5, 2020 · Synced Oct 9, 2026, 1:39 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 9, 2026, 1:39 AM 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 29, 2018 · Synced Oct 9, 2026, 1:39 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Targeting Platelets in Chronic HIV Infection

NCT02578706
View directory record Official record
Conditions
HIV-1 Infection
Interventions
Clopidogrel, Aspirin, Placebo
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 28, 2018 · Synced Oct 9, 2026, 1:39 AM EDT
Terminated Phase 3 Interventional Results available

COVID-19 Positive Outpatient Thrombosis Prevention in Adults Aged 40-80

NCT04498273
View directory record Official record
Conditions
COVID-19
Interventions
Apixaban 2.5 MG, Apixaban 5MG, Aspirin, Placebo
Drug
Lead sponsor
Frank C Sciurba
Other
Eligibility
40 Years to 80 Years
Enrollment
657 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
71
States / cities
Los Angeles, California • Palo Alto, California • San Francisco, California + 51 more
Source: ClinicalTrials.gov public record
Updated Feb 17, 2022 · Synced Oct 9, 2026, 1:39 AM 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 13, 2016 · Synced Oct 9, 2026, 1:39 AM EDT
Not listed No phase listed Observational

Effects of Omega-3 Fatty Acids on Platelets in Patients With Coronary Artery Disease With Hypertriglyceridemia

NCT01086163
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Omacor, omega-3 fatty acids in CAD patients
Drug
Lead sponsor
HeartDrug Research LLC
Other
Eligibility
50 Years to 60 Years · Male only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Towson, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 12, 2010 · Synced Oct 9, 2026, 1:39 AM EDT
Completed Phase 2 Interventional Results available

Targeting Pulmonary Perfusion in Alpha-1 Antitrypsin Deficiency

NCT03008915
View directory record Official record
Conditions
Alpha-1 Antitrypsin Deficiency, Emphysema, Chronic Obstructive Pulmonary Disease
Interventions
Aspirin, Placebo, Withdrawal from alpha1 antitrypsin replacement therapy
Drug · Other
Lead sponsor
Columbia University
Other
Eligibility
40 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 17, 2021 · Synced Oct 9, 2026, 1:39 AM EDT