Clinical trials: Clopidogrel Resistance
Acute Myocardial Infarction
REsistance to Aspirin and Clopidogrel in acuTe Myocardial Infarction
The purpose of this study is to compare 3 point-of-care methods for monitoring antiplatelet therapy to golden standard (Light transmittance aggregometry-LTA) in high risk population of acute myocardial infarction patients.
- Trial name
- REACT-MI (NCT01381185)
- Testing
- Aspirin 200mg qd, Clopidogrel 2x75mg qd
- Where
- 2 sites in Czechia
- Volunteers
- 154 people
- Sponsor
- University Hospital Ostrava
Carotid Stenosis
Clopidogrel Resistance and Embolism in Carotid Artery Stenting
The purpose of this study is to evaluate the efficacy and safety of the ticlopidine + ginko biloba compared to clopidogrel in clopidogrel resistant patients undergoing carotid artery stent placement.
- Trial name
- CRECAS (NCT02133989)
- Testing
- Ticlopidine + Ginko biloba, Clopidogrel
- Where
- South Korea
- Volunteers
- 86 people
- Sponsor
- Samsung Medical Center
Coronary Artery Disease, Drug Resistance
Effect of Clopidogrel Loading and Risk of PCI
This study is a prospective, single-center evaluation of the impact of the variability in platelet response after loading with clopidogrel on the peri-interventional risk of patients undergoing PCI.
- Trial name
- EXCELSIOR (NCT00457236)
- Where
- Germany
- Volunteers
- 800 people
- Sponsor
- University Heart Center Freiburg - Bad Krozingen
Coronary Artery Disease (CAD)
Prasugrel Versus High Dose Clopidogrel in Patients With Stable Coronary Artery Disease and High Platelet Reactivity While on Chronic Clopidogrel Treatment
Clopidogrel administration is considered standard of care in patients with stable coronary artery disease post PCI. However , a significant proportion of patients is considered clopidogrel resistant and this is shown to be…
- Trial name
- NCT01304472
- Testing
- Prasugrel, Clopidogrel
- Where
- 2 sites in Greece
- Volunteers
- 25 people
- Sponsor
- University of Patras
Type 2 Diabetes Mellitus (T2DM), Coronary Artery Disease (CAD)
Multiple Electrode Aggregometry & Clopidogrel Resistance
Antiplatelet therapy with aspirin-clopidogrel reduces the risk of cardiovascular episodes after percutaneous coronary intervention (PCI) in patients with acute coronary syndromes.
- Conditions
- Type 2 Diabetes Mellitus (T2DM), Coronary Artery Disease (CAD), Myocardial Infraction
- Trial name
- NCT01991093
- Where
- 3 sites in Greece
- Volunteers
- 280 people
- Sponsor
- Elpen Pharmaceutical Co. Inc.
Ischemic Stroke, TIA (Transient Ischemic Attack)
Evaluation of the Efficacy of Novel Biomarkers in Predicting Clopidogrel Resistance in Patients with Ischemic Stroke
The goal of this observational study is to explore the potential efficacy of related biomakers in predicting clopidogrel resistance in patients with ischemic stroke. To be specific : 1.
- Conditions
- Ischemic Stroke, TIA (Transient Ischemic Attack), Clopidogrel Resistance
- Trial name
- NCT06753149
- Volunteers
- 800 people
- Sponsor
- Nanjing First Hospital, Nanjing Medical University
Coronary Artery Disease
Clinical Management of Antiplatelet Drug Resistance in Patients With Drug Eluting Coronary Stents
It is recommended that patients who have drug-eluting stents placed in their coronary arteries take aspirin and Plavix (Clopidogrel) for at least a year.
- Trial name
- NCT00589862
- Testing
- Plavix (Clopidogrel)
- Where
- United States
- Sponsor
- Creighton University
Acute ST SEgment Elevation Myocardial Infarction
Thromboelastography As An Assessment Tool for Possible Clopidogrel and Aspirin Resistance
TEG is an established technique to assess the quality of clot formation' used mainly in surgery and obstetrics to determine possible bleeding diathesis.
- Trial name
- TEG (NCT00697021)
- Testing
- Aspirin (200mg) and/or Plavix (150mg) dosage according to TEG, Aspirin 100mg and Plavix 75mg
- Where
- Israel
- Volunteers
- 50 people
- Sponsor
- Assaf-Harofeh Medical Center
Clopidogrel Resistance, Secondary Stroke Prevention
Effect of Primidone on Platelet Responsiveness in Patients Determined to be Clopidogrel Resistant
The purpose of this study is to determine whether adding primidone will improve the metabolism of clopidogrel thereby increasing metabolite levels within the blood stream and platelet response to clopidogrel in patients who were…
- Trial name
- NCT02008123
- Testing
- Primidone
- Where
- United States
- Sponsor
- Dent Neuroscience Research Center
Peripheral Arterial Disease (PAD), Amputation
Personalizing Thromboprophylaxis for Patients With Peripheral Artery Disease
The goal of this clinical trial is to determine whether a personalised blood clot prevention plan is more effective than standard treatment in adults with peripheral artery disease (PAD) who have undergone a procedure to restore…
- Conditions
- Peripheral Arterial Disease (PAD), Amputation, Thrombosis, Thrombosis (Stent Thrombosis)
- Trial name
- NCT07613840
- Testing
- Aspirin, Clopidogrel, Ticagrelor
- Where
- 2 sites in United States
- Volunteers
- 484 people
- Sponsor
- Massachusetts General Hospital
Angioplasty
Randomized Study of Aspirin Resistant Patients Undergoing Angioplasty
This study is a randomized, double-blind, multi-center study designed to compare differences in rates of myonecrosis (measured as an elevation of CK-MB ratio ≥ 2 times ULN) within 24 hours following low-medium risk percutaneous…
- Trial name
- NCT00289601
- Testing
- eptifibatide
- Where
- United States
- Volunteers
- 1,200 people
- Sponsor
- Brigham and Women's Hospital
Drug Resistance
Aspirin and Clopidogrel Resistance Study
Resistance to antiplatelet drugs (aspirin, clopidogrel) is a recognized phenomenon with a prevalence from 17% to 35%. Resistance as detected by in vitro tests such as Multiple Electrode Aggregometry (MEA) has been shown to…
- Trial name
- NCT01039480
- Where
- Switzerland
- Volunteers
- 82 people
- Sponsor
- University Hospital, Basel, Switzerland
Clopidogrel, Poor Metabolism of, Ischemic Stroke
Clopidogrel Resistance in Stroke Patients From Different Ethnicities
Clopidogrel is an anti-platelet agent used to inhibit blood clots. Variation in response to clopidogrel has been reported among different population and may lead to reoccurring ischemic events.
- Trial name
- NCT03806894
- Testing
- Quantification of platelet aggregation
- Volunteers
- 300 people
- Sponsor
- Ziv Hospital
Metabolic Syndrome x
PROCLAIM: Study Examining Effects of Clopidogrel Compared to Placebo on Inflammation in Subjects With Metabolic Syndrome
The purpose of this study is to examine the effects of clopidogrel compared to placebo on markers of inflammation in subjects with metabolic syndrome who are receiving background therapy including low dose aspirin.
- Trial name
- NCT00296803
- Testing
- clopidogrel
- Where
- United States
- Volunteers
- 216 people, healthy volunteers welcome
- Sponsor
- Sanofi
Acute Coronary Syndrome, Coronary Artery Disease
Clopidogrel Resistance and Platelet Reactivity in Women Undergoing Percutaneous Coronary Intervention
Plavix (clopidogrel) is a drug that is approved by the FDA (Food and Drug Administration) to reduce the risk of having another heart attack by preventing platelets (blood cells that are important in forming blood clots) from…
- Trial name
- NCT01796873
- Where
- 2 sites in United States
- Volunteers
- 36 people
- Sponsor
- University of Arizona
Coronary Artery Disease, Acute Coronary Syndrome
Ticagrelor Versus Prasugrel in Acute Coronary Syndromes After Percutaneous Coronary Intervention
This is a single-center, randomized, single-blind, investigator-initiated pharmacological study with a crossover design. Patients with acute coronary syndrome (ST-elevation myocardial infarction, non-ST elevation myocardial…
- Trial name
- NCT01360437
- Testing
- Prasugrel, Ticagrelor
- Where
- Greece
- Volunteers
- 44 people
- Sponsor
- University of Patras
Graft Patency, Coronary Artery Bypass Grafting Surgery
ThrombElastoGraphic Haemostatic Status and Antiplatelet Therapy After Coronary Artery Bypass Graft Surgery
The purpose of this study is to determine whether adding clopidogrel to aspirin after coronary bypass operation (CABG) improves graft patency, in patients that have preoperatively increased platelet activity(hypercoagulable) and…
- Conditions
- Graft Patency, Coronary Artery Bypass Grafting Surgery, Hypercoagulability, Thrombosis
- Trial name
- TEG-CABG (NCT01046942)
- Testing
- Clopidogrel+acetylsalicylic acid, acetylsalicylic acid
- Where
- Denmark
- Volunteers
- 250 people
- Sponsor
- Copenhagen University Hospital, Rigshospitalet
Coronary Artery Disease
Resistance on Antithrombotic Drugs in Ischemic Heart Disease
The purpose of this study is to determine whether aspirin and clopidogrel resistance measured with Multiplate function analyser has a good correlation with incidence of major adverse cardiac events in patients with coronary…
- Trial name
- NCT00742430
- Testing
- PCI
- Where
- Croatia
- Volunteers
- 141 people
- Sponsor
- University of Zagreb
Angioplasty, Transluminal, Percutaneous Coronary
Study of Tirofiban Administration in Patients With Aspirin and or Clopidogrel Resistance
This study will evaluate whether adding tirofiban, administered at high bolus dose on top of aspirin and clopidogrel will lead to a lower rate of periprocedural myocardial infarction after percutaneous coronary intervention in…
- Trial name
- 3T/2R (NCT00398463)
- Testing
- Tirofiban
- Where
- Italy
- Volunteers
- 263 people
- Sponsor
- Università degli Studi di Ferrara