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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Platelet Thrombus Clear all
Completed Phase 3 Interventional Results available

Pragmatic, Randomized Optimal Platelet and Plasma Ratios

NCT01545232
View directory record Official record
Conditions
Trauma
Interventions
1:1:1 Blood Transfusion Ratio, 1:1:2 Blood Transfusion Ratio
Biological
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
15 Years and older
Enrollment
680 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
11
States / cities
Birmingham, Alabama • Tucson, Arizona • Los Angeles, California + 8 more
Source: ClinicalTrials.gov public record
Updated Feb 7, 2019 · Synced Sep 28, 2026, 2:22 AM EDT
Completed Phase 4 Interventional

Scripps Evaluation of Antiplatelet Therapies for Intermediate Duration With the Endeavor Stent (Seaside)

NCT00963781
View directory record Official record
Conditions
Coronary Artery Disease, Coronary Thrombosis
Interventions
Medtronic Endeavor Stent, Reduced duration (6 months) DAPT
Device · Drug
Lead sponsor
Scripps Health
Other
Eligibility
18 Years and older
Enrollment
219 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Oct 19, 2020 · Synced Sep 28, 2026, 2:22 AM EDT
Completed Phase 4 Interventional Results available

Pharmacogenomics of Antiplatelet Response - II (PARes-II)

NCT01894555
View directory record Official record
Conditions
Atherothrombosis
Interventions
Aspirin
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
45 Years to 75 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 8, 2017 · Synced Sep 28, 2026, 2:22 AM EDT
Not listed No phase listed Observational

Bridging Therapy in Patients at High Risk for Stent Thrombosis Undergoing Surgery

NCT00653601
View directory record Official record
Conditions
Bleeding, Thrombosis
Interventions
Not listed
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 3, 2009 · Synced Sep 28, 2026, 2:22 AM EDT
Completed Phase 4 Interventional Results available

Reversing Ticagrelor's Effects With Fresh Platelets

NCT02201394
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Ticagrelor loading dose, Aspirin loading dose, Ticagrelor maintenance dose, Aspirin maintenance dose
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 4, 2017 · Synced Sep 28, 2026, 2:22 AM EDT
Terminated Phase 2 Interventional Results available

Fondaparinux for the Treatment of Heparin-Induced Thrombocytopenia (HIT)

NCT00673439
View directory record Official record
Conditions
Heparin-Induced Thrombocytopenia
Interventions
fondaparinux, warfarin
Drug
Lead sponsor
University of Louisville
Other
Eligibility
18 Years to 75 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Nov 7, 2019 · Synced Sep 28, 2026, 2:22 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

The Genetics and Functional Basis of Inherited Platelet, White Blood Cell, Red Blood Cell, and Blood Clotting Disorders.

NCT00230165
View directory record Official record
Conditions
Glanzmann Thrombasthenia
Interventions
Not listed
Lead sponsor
Rockefeller University
Other
Eligibility
Not listed
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2030
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 19, 2025 · Synced Sep 28, 2026, 2:22 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Platelet Volunteers, Longitudinal and Multi-omic Study

NCT07137429
View directory record Official record
Conditions
Thrombosis
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 100 Years
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2041
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Sep 28, 2026, 2:22 AM EDT
Completed No phase listed Observational

Heparin-Induced Thrombocytopenia Registry

NCT00456326
View directory record Official record
Conditions
Heparin-Induced Thrombocytopenia
Interventions
Not listed
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
Not listed
Enrollment
242 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 17, 2008 · Synced Sep 28, 2026, 2:22 AM EDT
Completed Phase 4 Interventional

The Impact of Factor Xa Inhibition on Thrombosis, Platelet Activation, and Endothelial Function in Peripheral Artery Disease

NCT05009862
View directory record Official record
Conditions
Peripheral Arterial Disease
Interventions
Rivaroxaban 2.5 Mg Oral Tablet, Placebo, Aspirin 81Mg Ec Tab
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
40 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Sep 28, 2026, 2:22 AM EDT
Completed No phase listed Observational

The Role of Fat Emboli in the Trauma Inflammatory Response

NCT02069327
View directory record Official record
Conditions
Femoral Fracture
Interventions
Not listed
Lead sponsor
Poudre Valley Health System
Other
Eligibility
Not listed
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Loveland, Colorado
Source: ClinicalTrials.gov public record
Updated Mar 19, 2019 · Synced Sep 28, 2026, 2:22 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Role of 12-lipoxygenase in Platelet Reactivity and Type 2 Diabetes Mellitus

NCT02629497
View directory record Official record
Conditions
Thrombosis, Type 2 Diabetes Mellitus
Interventions
Primrose oil, Fish Oil
Dietary Supplement
Lead sponsor
University of Michigan
Other
Eligibility
21 Years to 70 Years · Female only
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated May 29, 2025 · Synced Sep 28, 2026, 2:22 AM 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 28, 2026, 2:22 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Antithrombotic Activities of Sotagliflozin vs. Empagliflozin

NCT06618976
View directory record Official record
Conditions
Thrombosis
Interventions
Sotagliflozin, Empagliflozin
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Sep 28, 2026, 2:22 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Neonatal Platelet Transfusion Threshold Trial

NCT06676904
View directory record Official record
Conditions
Thrombocytopenia, Neonatal, Platelet Transfusion, Infant, Newborn, Diseases, Infant, Extremely Low Birth Weight, Infant, Small for Gestational Age, Thrombosis
Interventions
Higher Platelet Transfusion Threshold, Lower Platelet Transfusion Threshold
Procedure
Lead sponsor
NICHD Neonatal Research Network
Network
Eligibility
1 Hour to 48 Hours
Enrollment
2,433 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2031
U.S. locations
20
States / cities
Birmingham, Alabama • Palo Alto, California • San Diego, California + 17 more
Source: ClinicalTrials.gov public record
Updated Mar 24, 2026 · Synced Sep 28, 2026, 2:22 AM 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 28, 2026, 2:22 AM EDT
Completed No phase listed Observational

Patterns of Non-Adherence to Dual Anti-Platelet Regimen In Stented Patients

NCT00998127
View directory record Official record
Conditions
Medication Non-adherence, Stent Thrombosis
Interventions
Not listed
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
5,031 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
10
States / cities
Washington D.C., District of Columbia • Indianapolis, Indiana • Lexington, Kentucky + 6 more
Source: ClinicalTrials.gov public record
Updated Feb 10, 2016 · Synced Sep 28, 2026, 2:22 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of Tumescent Lidocaine on Platelet Function

NCT01463280
View directory record Official record
Conditions
Postoperative Thromboembolism
Interventions
tumescent lidocaine infiltration
Drug
Lead sponsor
Klein, Jeffrey A., M.D.
Individual
Eligibility
18 Years and older
Enrollment
129 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
San Juan Capistrano, California
Source: ClinicalTrials.gov public record
Updated Feb 24, 2014 · Synced Sep 28, 2026, 2:22 AM EDT
Completed Phase 4 Interventional Results available

ECMO Hemostatic Transfusions in Children

NCT05796557
View directory record Official record
Conditions
Extracorporeal Membrane Oxygenation Complication, Hemorrhage, Thromboembolism, Transfusion Adverse Reaction
Interventions
Platelet Transfusion
Biological
Lead sponsor
Yale University
Other
Eligibility
Up to 18 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
9
States / cities
Atlanta, Georgia • Iowa City, Iowa • Louisville, Kentucky + 5 more
Source: ClinicalTrials.gov public record
Updated May 30, 2025 · Synced Sep 28, 2026, 2:22 AM EDT
Completed Phase 2 Interventional

Phase II Study of IL-11 (Neumega) in Von Willebrand Disease

NCT00151125
View directory record Official record
Conditions
Von Willebrand Disease
Interventions
recombinant interleukin-11
Drug
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 16, 2016 · Synced Sep 28, 2026, 2:22 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 28, 2026, 2:22 AM EDT
Recruiting Not applicable Interventional

Personalizing Thromboprophylaxis for Patients With Peripheral Artery Disease

NCT07613840
View directory record Official record
Conditions
Peripheral Arterial Disease (PAD), Amputation, Thrombosis, Thrombosis (Stent Thrombosis), Platelet Aggregation Inhibitors, Thromboelastography (TEG), PRU(Platelet Reactivity Unit)
Interventions
Aspirin, Clopidogrel, Ticagrelor, Rivaroxaban, Thromboelastography with Platelet Mapping
Drug · Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
484 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
2
States / cities
Boston, Massachusetts • Salem, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Sep 28, 2026, 2:22 AM EDT
Terminated Phase 2 Interventional Results available

Management of Platelet Transfusion Therapy in Patients With Blood Cancer or Treatment-Induced Thrombocytopenia

NCT03195010
View directory record Official record
Conditions
Acute Biphenotypic Leukemia, Acute Lymphoblastic Leukemia, Acute Myeloid Leukemia, B-Cell Non-Hodgkin Lymphoma, Chronic Lymphocytic Leukemia, Chronic Myelogenous Leukemia, BCR-ABL1 Positive, Hematologic and Lymphocytic Disorder, Hematopoietic Cell Transplantation Recipient, Myelodysplastic Syndrome, Primary Myelofibrosis, Secondary Myelofibrosis, T-Cell Non-Hodgkin Lymphoma, Thrombocytopenia, Venous Thromboembolism
Interventions
Platelet Transfusion
Biological
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 20, 2019 · Synced Sep 28, 2026, 2:22 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

CES1 Carriers in the PAPI Study

NCT03188705
View directory record Official record
Conditions
Heart Diseases, Coronary Disease, Coronary Artery Disease, Cardiovascular Diseases, Myocardial Ischemia, Artery Occlusion, Aspirin Sensitivity, Clopidogrel, Poor Metabolism of, Platelet Dysfunction, Platelet Thrombus
Interventions
Clopidogrel, Aspirin
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
20 Years and older
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Lancaster, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Sep 28, 2026, 2:22 AM EDT