Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 22, 2026, 9:28 PM EDT

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Showing 1–24 of 52 matching trials from the live ClinicalTrials.gov search.
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
Completed Not applicable Interventional Results available

Impact of Ticagrelor Re-load on Pharmacodynamic Profiles

NCT01731041
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
Conditions
Platelet Activation Testing Before/After Anti-platelet Therapy, Healthy
Interventions
Aspirin, Clopidogrel
Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
112 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Myocardial Infarction (MI)
Interventions
Not listed
Lead sponsor
AstraZeneca
Industry
Eligibility
Up to 130 Years
Enrollment
7,035 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
2
States / cities
Bethesda, Maryland • Waltham, Massachusetts
Conditions
Intracerebral Hemorrhage, Atrial Fibrillation
Interventions
Apixaban, Aspirin
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
700 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
186
States / cities
Birmingham, Alabama • Mobile, Alabama • Chandler, Arizona + 141 more
Conditions
Coronary Artery Disease, Myocardial Ischemia, Bleeding
Interventions
clopidogrel 600 mg, arterial access sheath
Drug · Device
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 85 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Platelet Function and Reactivity Tests
Interventions
Sotagliflozin (SOTA) followed by 3 drugs in a random order, Aspirin followed by 3 drugs in a random order, Clopidogrel followed by 3 drugs in a random order, Eliquis followed by 3 drugs in a random order
Drug
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 79 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Ann Arbor, Michigan
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
Completed No phase listed Observational Accepts healthy volunteers

Aggreguide A-100 ADP Assay Evaluation

NCT02112539
Conditions
Platelet Aggregation, ADP Blockers
Interventions
platelet aggregation measurement
Other
Lead sponsor
Aggredyne, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Houston, Texas
Conditions
Coronary Artery Disease
Interventions
Plavix (Clopidogrel)
Drug
Lead sponsor
Creighton University
Other
Eligibility
19 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Omaha, Nebraska
Not listed Phase 1Phase 2 Interventional Accepts healthy volunteers

Reversal of Aspirin Antiplatelet Therapy With Cold Stored Platelets

NCT05111028
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
Conditions
Hematologic Neoplasms, Thrombocytopenia, Anticoagulants, Platelet Aggregation Inhibitors
Interventions
Hold, Prophylactic dose antithrombotic, Change antithrombotic Drug, Change platelet transfusion threshold, Full dose antithrombotics, Mechanical measures, Intermediate dose antithrombotic
Drug · Biological · Device
Lead sponsor
Maastricht University Medical Center
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Portland, Oregon
Conditions
Coronary Artery Disease, Chest Pain
Interventions
Clopidogrel
Drug
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 65 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Conditions
Coronary Artery Disease
Interventions
Ticagrelor, Clopidogrel
Drug
Lead sponsor
Rapid City Regional Hospital, Inc
Other
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Rapid City, South Dakota
Completed Phase 1 Interventional Accepts healthy volunteers Results available

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

NCT01768637
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
Conditions
Cardiovascular Disease
Interventions
ticagrelor, prasugrel, Placebo
Drug
Lead sponsor
Yochai Birnbaum
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
3
States / cities
Houston, Texas
Conditions
Heart Failure
Interventions
Warfarin titrated to an INR of 2.5-3.0, Aspirin, Clopidogrel 75
Drug
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years and older
Enrollment
1,587 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2004
U.S. locations
79
States / cities
Birmingham, Alabama • Phoenix, Arizona • Tucson, Arizona + 76 more
Completed Not applicable Interventional Accepts healthy volunteers Results available

PACT (Platelet Activity After Clopidogrel Termination)

NCT00619073
Conditions
Blood Platelets, Clopidogrel
Interventions
clopidogrel + aspirin, placebo, Aspirin
Drug
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
21 Years to 70 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Worcester, Massachusetts
Conditions
Type2 Diabetes, Antiplatelet Drugs, Myocardial Infarction, Heart Failure
Interventions
Antiplatelet Drug
Drug
Lead sponsor
Tabula Rasa HealthCare
Industry
Eligibility
18 Years and older
Enrollment
173,464 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Orlando, Florida
Conditions
Atrial Fibrillation, Stroke, Bleeding
Interventions
Antiplatelet-only strategy, Oral Anticoagulant plus background antiplatelet therapy
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
3,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
51
States / cities
Little Rock, Arkansas • Los Angeles, California • Stanford, California + 40 more
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
Conditions
Coronary Artery Disease
Interventions
Prasugrel Loading Dose, Prasugrel Maintenance Dose, Ticagrelor Maintenance Dose
Drug
Lead sponsor
Daiichi Sankyo
Industry
Eligibility
18 Years to 74 Years
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
8
States / cities
Jacksonville, Florida • Miami, Florida • Port Orange, Florida + 5 more
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
Conditions
Stroke Acute
Interventions
Endovascular Therapy (Mechanical Thrombectomy), Standard Medical Management
Other
Lead sponsor
Santiago Ortega Gutierrez
Other
Eligibility
18 Years to 80 Years
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Iowa City, Iowa