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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Platelet Aggregation Clear all
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 9, 2026, 1:55 AM EDT
Completed Phase 2 Interventional

Platelet Aggregation Inhibition in Children on Clopidogrel (PICOLO)

NCT00115375
View directory record Official record
Conditions
Congenital Heart Defects, Blood Platelet Disorders
Interventions
Clopidogrel (SR25990)
Drug
Lead sponsor
Sanofi
Industry
Eligibility
Up to 24 Months
Enrollment
92 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
1
States / cities
Bridgewater, New Jersey
Source: ClinicalTrials.gov public record
Updated Mar 24, 2009 · Synced Sep 9, 2026, 1:55 AM EDT
Completed No phase listed Observational

Platelet Function on Abacavir and Tenofovir

NCT03081572
View directory record Official record
Conditions
Cardiovascular Diseases, Platelet Aggregation, Spontaneous, HIV/AIDS
Interventions
Platelet aggregation
Diagnostic Test
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 18, 2020 · Synced Sep 9, 2026, 1:55 AM 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Withdrawn Phase 2 Interventional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 9, 2026, 1:55 AM EDT
Completed Phase 2 Interventional Results available

Escalating Clopidogrel by Involving a Genetic Strategy - Thrombolysis In Myocardial Infarction 56

NCT01235351
View directory record Official record
Conditions
Myocardial Infarction, Percutaneous Coronary Intervention
Interventions
Clopidogrel
Drug
Lead sponsor
The TIMI Study Group
Other
Eligibility
18 Years to 75 Years
Enrollment
335 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 14, 2019 · Synced Sep 9, 2026, 1:55 AM EDT
Completed Phase 2 Interventional Results available

Effects of Recombinant Human Erythropoietin on Platelet Function in Patients With Acute Myocardial Infarction

NCT00367991
View directory record Official record
Conditions
Myocardial Infarction
Interventions
Recombinant human erythropoietin alfa (drug), Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
21 Years to 75 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 11, 2018 · Synced Sep 9, 2026, 1:55 AM 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 9, 2026, 1:55 AM EDT
Terminated Phase 4 Interventional Results available

NSAIDs vs. Coxibs in the Presence of Aspirin

NCT03699293
View directory record Official record
Conditions
Rheumatoid Arthritis, Cardiovascular Diseases
Interventions
celecoxib 200mg capsule, naproxen sodium 550mg tablet, Aspirin 81mg tablet
Drug
Lead sponsor
Platelet and Thrombosis Research, LLC
Other
Eligibility
18 Years to 75 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Sep 9, 2026, 1:55 AM EDT
Recruiting No phase listed Observational

Impact of IV Iron on Bleeding Symptoms in Iron Deficient Patients With Inherited Bleeding Disorders

NCT07083583
View directory record Official record
Conditions
Bleeding Disorders, Iron, Platelet, Bleeding
Interventions
IV Iron (standard of care)
Drug
Lead sponsor
Nicoletta C Machin
Other
Eligibility
15 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 2, 2025 · Synced Sep 9, 2026, 1:55 AM EDT
Completed Phase 1 Interventional Results available

Early Use of Rosuvastatin in Acute Coronary Syndromes: Targeting Platelet-Leukocyte Interactions

NCT01241903
View directory record Official record
Conditions
Acute Coronary Syndrome, Angioplasty, Transluminal, Percutaneous Coronary, Hydroxymethylglutaryl-CoA Reductase Inhibitors, Blood Platelets
Interventions
rosuvastatin, placebo
Drug
Lead sponsor
Susan Smyth
Other
Eligibility
18 Years to 80 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Mar 27, 2017 · Synced Sep 9, 2026, 1:55 AM EDT
Withdrawn Phase 4 Interventional

Tranexamic Acid Effect on Platelet Aggregation Following Infant Cardiopulmonary Bypass

NCT02122679
View directory record Official record
Conditions
Heart Defect, Congenital
Interventions
Tranexamic Acid, placebo
Drug
Lead sponsor
Emory University
Other
Eligibility
Up to 6 Months
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Nov 24, 2016 · Synced Sep 9, 2026, 1:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Acute Assessment of Platelet Reactivity After the Intake of Oleocanthal

NCT03528603
View directory record Official record
Conditions
Platelet Aggregation, Nutritional and Metabolic Disease, Cardiovascular Diseases
Interventions
Oleocanthal-Rich Extra Virgin Olive Oil, Oleocanthal-low Extra Virgin Olive Oil
Other
Lead sponsor
University of California, Davis
Other
Eligibility
20 Years to 45 Years · Male only
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2024
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Jun 23, 2024 · Synced Sep 9, 2026, 1:55 AM EDT
Completed No phase listed Observational

Association of Platelet Parameters With Bleeding Severity in Children With ITP

NCT03810352
View directory record Official record
Conditions
Immune Thrombocytopenia
Interventions
Not listed
Lead sponsor
Boston Children's Hospital
Other
Eligibility
6 Months to 20 Years
Enrollment
95 participants
Timeline
2019 – 2023
U.S. locations
6
States / cities
Aurora, Colorado • Boston, Massachusetts • New York, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Mar 14, 2024 · Synced Sep 9, 2026, 1:55 AM EDT
Completed Not applicable Interventional

GRAVITAS: Gauging Responsiveness With A VerifyNow Assay-Impact On Thrombosis And Safety

NCT00645918
View directory record Official record
Conditions
Coronary Arteriosclerosis, Acute Coronary Syndrome
Interventions
clopidogrel, placebo
Drug
Lead sponsor
Accumetrics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
2,800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
72
States / cities
Birmingham, Alabama • Scottsdale, Arizona • La Jolla, California + 59 more
Source: ClinicalTrials.gov public record
Updated Jun 15, 2011 · Synced Sep 9, 2026, 1:55 AM 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 9, 2026, 1:55 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
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 22, 2026 · Synced Sep 9, 2026, 1:55 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

PPI and Clopidogrel Response

NCT01170533
View directory record Official record
Conditions
Drug Interaction
Interventions
omeprazole and pantoprazole
Drug
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Mar 5, 2012 · Synced Sep 9, 2026, 1:55 AM EDT
Completed Phase 1Phase 2 Interventional

Ginkgo Biloba Extract and the Insulin Resistance Syndrome

NCT00032474
View directory record Official record
Conditions
Type 2 Diabetes Mellitus
Interventions
Ginkgo biloba extract
Drug
Lead sponsor
National Center for Complementary and Integrative Health (NCCIH)
NIH
Eligibility
20 Years to 80 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2005
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Aug 17, 2006 · Synced Sep 9, 2026, 1:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Long Term Cocoa Flavanol Intake on Blood Pressure and Platelet Function in Healthy Adults, Part 1

NCT02447770
View directory record Official record
Conditions
Healthy
Interventions
Mars Cocoa Extract Capsules
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
30 Years to 55 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated May 29, 2017 · Synced Sep 9, 2026, 1:55 AM EDT
Terminated No phase listed Observational

RapidTEG MA Validation

NCT01428102
View directory record Official record
Conditions
Coagulation, Platelet Function
Interventions
Not listed
Lead sponsor
Haemonetics Corporation
Industry
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
2
States / cities
Baltimore, Maryland • Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 15, 2013 · Synced Sep 9, 2026, 1:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Processed Tomato Products on CVD Risks

NCT00937742
View directory record Official record
Conditions
Cardiovascular Disease
Interventions
Tomato products
Dietary Supplement
Lead sponsor
Penn State University
Other
Eligibility
21 Years to 70 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 20, 2023 · Synced Sep 9, 2026, 1:55 AM 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 9, 2026, 1:55 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

PAR Regulation of Platelet Function in Diabetic Patients

NCT00855374
View directory record Official record
Conditions
Coronary Artery Disease, Acute Coronary Syndrome, Diabetes, Metabolic Syndrome
Interventions
Not listed
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older
Enrollment
195 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2013
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 10, 2017 · Synced Sep 9, 2026, 1:55 AM EDT
Completed Not applicable Interventional

Platelet Function Analysis in Head Trauma: ASA/Plavix

NCT01534117
View directory record Official record
Conditions
Head Injury Trauma Blunt
Interventions
Platelets, DDAVP
Biological · Drug
Lead sponsor
Chang, Steve S., M.D.
Individual
Eligibility
18 Years and older
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Santa Barbara, California
Source: ClinicalTrials.gov public record
Updated Feb 15, 2012 · Synced Sep 9, 2026, 1:55 AM EDT