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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: platelet aggregation measurement Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of Aleglitazar in Combination With Aspirin in Healthy Volunteers

NCT01188304
View directory record Official record
Conditions
Healthy Volunteer
Interventions
aleglitazar, aspirin, placebo
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
40 Years to 65 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Nov 1, 2016 · Synced Sep 25, 2026, 10:22 PM EDT
Completed Phase 2 Interventional Results available

Study of the Combination Therapy of Rt-PA and Eptifibatide to Treat Acute Ischemic Stroke (CLEAR-FDR)

NCT01977456
View directory record Official record
Conditions
Stroke, Brain Infarction
Interventions
Eptifibatide
Drug
Lead sponsor
Arthur Pancioli
Other
Eligibility
18 Years to 85 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
8
States / cities
Edgewood, Kentucky • Florence, Kentucky • Fort Thomas, Kentucky + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 20, 2016 · Synced Sep 25, 2026, 10:22 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Whole Blood Platelet Aggregation in Chronic Kidney Disease Patients on Aspirin Study

NCT01768637
View directory record Official record
Conditions
Chronic Kidney Disease
Interventions
Aspirin, Clopidogrel
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
21 Years to 90 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Apr 18, 2019 · Synced Sep 25, 2026, 10:22 PM EDT
Completed Phase 4 Interventional Results available

Pharmacogenomics of Antiplatelet Response - I

NCT01815008
View directory record Official record
Conditions
Platelet Aggregation, Platelet Transcriptome, Coronary Artery Disease
Interventions
Clopidogrel, Aspirin
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
45 Years to 75 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 8, 2017 · Synced Sep 25, 2026, 10:22 PM EDT
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 25, 2026, 10:22 PM EDT
Completed Phase 3 Interventional Results available

Multi-arm Optimization of Stroke Thrombolysis

NCT03735979
View directory record Official record
Conditions
Acute Ischemic Stroke
Interventions
Argatroban, Eptifibatide, Placebo
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
514 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
61
States / cities
Birmingham, Alabama • Fullerton, California • La Jolla, California + 47 more
Source: ClinicalTrials.gov public record
Updated Feb 6, 2025 · Synced Sep 25, 2026, 10:22 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Genetic Variation in Platelet Aggregation

NCT01576536
View directory record Official record
Conditions
Myocardial Infarction
Interventions
Not listed
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 45 Years
Enrollment
117 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 4, 2019 · Synced Sep 25, 2026, 10:22 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Chronic Kidney Disease (CKD) Platelet Study

NCT03649711
View directory record Official record
Conditions
Chronic Kidney Diseases, Heart Attack, Stroke, Ischemic
Interventions
Ticagrelor 90mg, Clopidogrel 75mg, Aspirin 81 mg
Drug
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years to 91 Years
Enrollment
76 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
2
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Dec 28, 2022 · Synced Sep 25, 2026, 10:22 PM EDT
Terminated Phase 3 Interventional Results available

A Study With BPS-314d-MR-PAH-303 in Participants With Pulmonary Arterial Hypertension

NCT03657095
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Esuberaprost, Placebo
Drug
Lead sponsor
Lung Biotechnology PBC
Industry
Eligibility
18 Years to 85 Years
Enrollment
112 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
43
States / cities
Birmingham, Alabama • Beverly Hills, California • La Jolla, California + 37 more
Source: ClinicalTrials.gov public record
Updated Sep 6, 2020 · Synced Sep 25, 2026, 10:22 PM EDT
Not listed Phase 4 Interventional

Overcoming High On-Treatment Platelet Reactivity (HPR) During Prasugrel Therapy With Ticagrelor

NCT01869309
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Prasugrel, Ticagrelor
Drug
Lead sponsor
LifeBridge Health
Other
Eligibility
18 Years to 75 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 20, 2014 · Synced Sep 25, 2026, 10:22 PM EDT
Not listed Phase 1Phase 2 Interventional

Platelet Function in Patients With Ischemic Stroke Treated With Anti-thrombotic or Thrombolytic

NCT05415150
View directory record Official record
Conditions
Acute Ischemic Stroke
Interventions
Thrombolytic Agent
Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 9, 2022 · Synced Sep 25, 2026, 10:22 PM EDT
Completed No phase listed Observational

Platelet Sub-study of the TWILIGHT Trial

NCT04001374
View directory record Official record
Conditions
Coronary Artery Disease, Myocardial Infarction
Interventions
Ticagrelor, ASA
Drug
Lead sponsor
Juan Badimon
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 25, 2020 · Synced Sep 25, 2026, 10:22 PM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers

Loss of Effect of Aspirin on Platelet Aggregation During Chronic Administration

NCT00748371
View directory record Official record
Conditions
Platelet Aggregation
Interventions
aspirin, placebo
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older · Male only
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2011
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 11, 2017 · Synced Sep 25, 2026, 10:22 PM EDT
Withdrawn Phase 2 Interventional

Study of Beet Juice for Patients With Sickle Cell Anemia

NCT02162225
View directory record Official record
Conditions
Sickle Cell Anemia
Interventions
beet juice (Unbeetable)
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
19 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 1, 2018 · Synced Sep 25, 2026, 10:22 PM EDT
Completed Phase 4 Interventional Results available

Reducing Total Cardiovascular Risk in an Urban Community

NCT00241904
View directory record Official record
Conditions
Cardiovascular Diseases, Heart Diseases, Coronary Disease, Diabetes Mellitus, Atherosclerosis, Cerebral Arteriosclerosis, Hypertension
Interventions
Lifestyle Changes, Antiplatelet Agents, Beta Blocker, ACE Inhibitors
Behavioral · Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 80 Years
Enrollment
525 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 14, 2017 · Synced Sep 25, 2026, 10:22 PM EDT
Completed No phase listed Observational

Prospective Evaluation of Bleeding Risk of Anticoagulant and Anti-platelet Therapy

NCT00625248
View directory record Official record
Conditions
Bleeding
Interventions
Antithrombotics
Drug
Lead sponsor
Pain Management Center of Paducah
Other
Eligibility
18 Years and older
Enrollment
12,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Paducah, Kentucky
Source: ClinicalTrials.gov public record
Updated Jun 23, 2013 · Synced Sep 25, 2026, 10:22 PM EDT
Completed Phase 2 Interventional Results available

Study of the Combination Therapy of Rt-PA and Eptifibatide to Treat Acute Ischemic Stroke

NCT00894803
View directory record Official record
Conditions
Ischemic Stroke, Stroke, Brain Infarction
Interventions
Eptifibatide, rt-PA
Drug
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years to 85 Years
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
20
States / cities
Los Angeles, California • San Diego, California • Santa Monica, California + 11 more
Source: ClinicalTrials.gov public record
Updated Apr 16, 2014 · Synced Sep 25, 2026, 10:22 PM EDT
Not listed No phase listed Observational

Comparison of the VerifyNow® Aspirin Test and PRUTest® Platelet Reactivity Tests With Investigational Reagent to Reagents Registered in Japan

NCT03615846
View directory record Official record
Conditions
Platelet Aggregation, Coronary Artery Disease
Interventions
Not listed
Lead sponsor
Accriva Diagnostics
Industry
Eligibility
18 Years and older
Enrollment
147 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
2
States / cities
Jacksonville, Florida • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 13, 2021 · Synced Sep 25, 2026, 10:22 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate Platlet Aggregation of Clopidogrel, EC Aspirin 81 mg, EC Omeprazole 40 mg Compare to PA32540

NCT01557335
View directory record Official record
Conditions
Platelet Aggregation
Interventions
Plavix® and PA32540, EC aspirin (Bayer®) ,EC omeprazole (Prilosec®) , Clopidogrel (Plavix®)
Drug
Lead sponsor
POZEN
Industry
Eligibility
40 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 18, 2012 · Synced Sep 25, 2026, 10:22 PM EDT
Completed Phase 4 Interventional

Effect of Indinavir Plus Two Other Anti-HIV Drugs on Blood Clotting in HIV-Positive Males With Hemophilia

NCT00002386
View directory record Official record
Conditions
HIV Infections, Hemophilia A
Interventions
Indinavir sulfate, Lamivudine, Stavudine, Zidovudine, Zalcitabine, Didanosine
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
16 Years and older · Male only
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
7
States / cities
San Francisco, California • Washington D.C., District of Columbia • Atlanta, Georgia + 4 more
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Sep 25, 2026, 10:22 PM EDT
Completed Phase 2 Interventional Results available

Safety of PZ-128 in Subjects Undergoing Non-Emergent Percutaneous Coronary Intervention

NCT02561000
View directory record Official record
Conditions
Arterial Occlusive Diseases, Coronary Artery Disease, Coronary Disease, Arteriosclerosis, Heart Diseases, Myocardial Ischemia, Vascular Diseases, Acute Coronary Syndrome
Interventions
PZ-128, Placebo
Drug
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
3
States / cities
Boston, Massachusetts • Worcester, Massachusetts • Falls Church, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 15, 2025 · Synced Sep 25, 2026, 10:22 PM EDT
Not listed Phase 1Phase 2 Interventional Accepts healthy volunteers

Reversal of Aspirin Antiplatelet Therapy With Cold Stored Platelets

NCT05111028
View directory record Official record
Conditions
Reversal of Platelet Aggregation Inhibitors
Interventions
Autologous Room Temperature stored Platelet transfusion, Autologous Cold Stored Platelet transfusion
Biological
Lead sponsor
Bloodworks
Other
Eligibility
18 Years to 59 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Nov 7, 2021 · Synced Sep 25, 2026, 10:22 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Effects of Omacor and Aspirin on Platelet Function

NCT00688961
View directory record Official record
Conditions
Healthy
Interventions
Aspirin, omega-3 acid ethyl esters
Drug
Lead sponsor
Sanford Research
Other
Eligibility
21 Years to 60 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Sioux Falls, South Dakota
Source: ClinicalTrials.gov public record
Updated Jun 2, 2008 · Synced Sep 25, 2026, 10:22 PM EDT
Enrolling by invitation Phase 3 Interventional

Selatogrel Outcome Study in Suspected Acute Myocardial Infarction

NCT04957719
View directory record Official record
Conditions
Acute Myocardial Infarction
Interventions
Selatogrel, Placebo
Combination Product
Lead sponsor
Viatris Innovation GmbH
Industry
Eligibility
18 Years and older
Enrollment
25,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
81
States / cities
Alexander City, Alabama • Birmingham, Alabama • Huntsville, Alabama + 72 more
Source: ClinicalTrials.gov public record
Updated Jul 22, 2026 · Synced Sep 25, 2026, 10:22 PM EDT