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Showing 1–24 of 132 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Platelet Aggregation Clear all
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Depression, Epinephrine, and Platelet Function

NCT00166114
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Escitalopram, Desipramine
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 55 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2009
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 22, 2015 · Synced Jul 21, 2026, 12:51 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study to See if Platelet Transfusion Stop or Lessen the Effect of the Drug on Platelets

NCT01744288
View directory record Official record
Conditions
Inhibition on Platelet Aggregation
Interventions
Ticagrelor, Clopidogrel, ASA
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 50 Years
Enrollment
258 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Apr 23, 2014 · Synced Jul 21, 2026, 12:51 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Study to Determine Racial and Gender Differences in Platelet Aggregation

NCT00233428
View directory record Official record
Conditions
Platelet Aggregation
Interventions
Blood Draw
Procedure
Lead sponsor
Texas Tech University Health Sciences Center
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
Lubbock, Texas
Source: ClinicalTrials.gov public record
Updated May 11, 2015 · Synced Jul 21, 2026, 12:51 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 Jul 21, 2026, 12:51 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 Jul 21, 2026, 12:51 PM EDT
Completed Phase 4 Interventional Results available

Effect of Prasugrel Versus Clopidogrel on Platelet Function After Bivalirudin Cessation

NCT01789814
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Prasugrel, Clopidogrel
Drug
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years to 75 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 3, 2017 · Synced Jul 21, 2026, 12:51 PM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

Thrombocytopenia and Bleeding in Wiskott-Aldrich Syndrome (WAS) Patients

NCT00909363
View directory record Official record
Conditions
Wiskott-Aldrich Syndrome, Thrombocytopenia, Bleeding
Interventions
Promacta, blood drawing in patients with WAS, blood drawing in healthy controls
Drug · Diagnostic Test
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
3 Months to 80 Years · Male only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 17, 2019 · Synced Jul 21, 2026, 12:51 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 Jul 21, 2026, 12:51 PM EDT
Completed Phase 4 Interventional Results available

The Platelet Aggregation After tiCagrelor Inhibition and FentanYl Trial (PACIFY)

NCT02683707
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Removal of Fentanyl from peri-procedural analgesia, Fentanyl, Lidocaine, Midazolam
Other · Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 100 Years
Enrollment
212 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 6, 2018 · Synced Jul 21, 2026, 12:51 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 Jul 21, 2026, 12:51 PM EDT
Completed Not applicable Interventional Results available

Impact of Ticagrelor Re-load on Pharmacodynamic Profiles

NCT01731041
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Ticagrelor 180mg, Ticagrelor 90mg
Drug
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 80 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Jun 9, 2015 · Synced Jul 21, 2026, 12:51 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 Jul 21, 2026, 12:51 PM 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 Jul 21, 2026, 12:51 PM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers

Genetic and Dietary Predictors of Anti-platelet Response

NCT04456608
View directory record Official record
Conditions
Platelet Function
Interventions
Aspirin
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
126 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2023
U.S. locations
3
States / cities
Anchorage, Alaska • Missoula, Montana • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Dec 14, 2023 · Synced Jul 21, 2026, 12:51 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Purple Grape Juice Study

NCT00551746
View directory record Official record
Conditions
Cardiovascular Disease
Interventions
Purple Grape Juice
Dietary Supplement
Lead sponsor
Intermountain Health Care, Inc.
Other
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Murray, Utah
Source: ClinicalTrials.gov public record
Updated Sep 15, 2011 · Synced Jul 21, 2026, 12:51 PM EDT
Completed No phase listed Observational

Platelet Reactivity After CABG

NCT01793597
View directory record Official record
Conditions
Acute Coronary Syndrome
Interventions
Not listed
Lead sponsor
University of Vermont
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Sep 21, 2015 · Synced Jul 21, 2026, 12:51 PM EDT
Completed Phase 4 Interventional Results available

EDUCATE: The MEDTRONIC Endeavor Drug Eluting Stenting: Understanding Care, Antiplatelet Agents and Thrombotic Events

NCT01069003
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Placebo Arm, Thienopyridine Therapy, Surveillance Arm
Drug · Device
Lead sponsor
Medtronic Vascular
Industry
Eligibility
19 Years and older
Enrollment
2,272 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Anderson, South Carolina
Source: ClinicalTrials.gov public record
Updated Jan 19, 2016 · Synced Jul 21, 2026, 12:51 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 Jul 21, 2026, 12:51 PM EDT
Terminated Phase 2 Interventional Results available

Walking Effect of Long Term Ticagrelor in Subjects With PAD Who Have Undergone EVR

NCT02227368
View directory record Official record
Conditions
Peripheral Artery Disease (PAD)
Interventions
Ticagrelor, Comparator
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
50 Years to 130 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
10
States / cities
Daytona Beach, Florida • Jacksonville, Florida • Ocala, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Jul 18, 2017 · Synced Jul 21, 2026, 12:51 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Consumption of Oral Artificial Sweeteners on Platelet Aggregation and Polyol Excretion

NCT04731363
View directory record Official record
Conditions
Cardiovascular Risk Factor
Interventions
xylitol, 30g, erythritol, 30g, xylitol, 5g, glucose, 30g
Dietary Supplement
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 12, 2026 · Synced Jul 21, 2026, 12:51 PM EDT
Completed No phase listed Observational

Platelet Function During ECMO (Extra Corporeal Membrane Oxygenation)

NCT00748878
View directory record Official record
Conditions
Platelet Function, Thrombocytopenia
Interventions
Not listed
Lead sponsor
University of Utah
Other
Eligibility
Not listed
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Oct 15, 2013 · Synced Jul 21, 2026, 12:51 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Study to Assess Platelet Dysfunction With Verify Now Assay

NCT01167218
View directory record Official record
Conditions
Platelet Aggregation Defects
Interventions
Not listed
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 75 Years
Enrollment
79 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Mineola, New York
Source: ClinicalTrials.gov public record
Updated Feb 5, 2019 · Synced Jul 21, 2026, 12:51 PM EDT
Withdrawn No phase listed Observational

Platelet Function Testing Help and Intraoperative Bleeding Risk for Patients Who Are on Plavix Prior to Surgery

NCT00653900
View directory record Official record
Conditions
Perioperative Bleeding
Interventions
Not listed
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 7, 2019 · Synced Jul 21, 2026, 12:51 PM 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 Jul 21, 2026, 12:51 PM EDT