Endothelium, Stenting, and Antiplatelet Therapy (EST) - Clopidogrel, Prasugrel, Ticagrelor Study (EST)
Effects of Clopidogrel vs Prasugel vs Ticagrelor on Endothelial Function, Inflammatory and Oxidative Stress Parameters and Platelet Function in Patients Undergoing Coronary Artery Stenting. A Randomised, Prospective Study.
Studie Overzicht
Toestand
Toestand
Conditie
Conditie
Interventie / Behandeling
Interventie / Behandeling
Studietype
Studietype
Inschrijving (Werkelijk)
Inschrijving
Fase
Fase
- Fase 4
Contacten en locaties
Studie Locaties
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Mainz, Duitsland, 55131
- 2 Medical Clinic
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Deelname Criteria
Geschiktheidscriteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- - 18-75 years old consecutive patients undergoing coronary angiography and stenting at the University Medical Centre Mainz
- A coronary lesion (and patient) amenable to treatment with drug eluting stent
- Ability of subject to understand character and individual consequences of clinical trial
- Signed and dated informed consent of the subject must be available before start of any specific trial procedures.
- Negative pregnancy test of women with childbearing potential
Exclusion Criteria:
- Subjects presenting 1 or more of the following criteria will not be enrolled in the trial:
- Patients with elevated (> 5 times upper normal limit) C-reactive protein level prior to stenting
- Patients in whom therapy with long-acting nitrates cannot be suspended prior to endothelial function measurements
- An acute coronary syndrome treated with coronary stenting within the last 4 weeks
- Patients with known inflammatory/infective diseases
- Patients with severe extracardiac diseases limiting life expectancy
- Known heart failure (LV-EF ≤ 40% AND NYHA III-IV)
- PCI or coronary By-Pass surgery within the last 4 weeks, pre-existing ongoing treatment with any of the study treatments.
- History of cerebrovascular events (stroke)
- Known renal dysfunction (serum creatinine ≥ 1.8mg/dl in women, ≥ 2.0mg/dl in men)
- Serum potassium > 5.5mmol/l
- Known hepatic impairment (AST, ALT > 3 times upper limit of normal)
- Changes in the ß-blocker, statin or ACE or angiotensin-receptor blocker inhibitor treatment within the past 2 weeks
- Pregnancy and lactation, inadequate contraception
- Body weight < 60kg
- Active bleeding
- Therapy with CYP3A4 inhibitors (ketoconazole, protease inhibitors, macrolide antibiotics)
- Therapy with anticoagulants: phenprocoumone, warfarin, dabigatran, rivaroxaban
- History of hypersensitivity to any of the investigational medicinal products or to any drug with similar chemical structure or to any excipient present in the pharmaceutical form of the investigational medicinal product.
- Ongoing participation in other clinical trials or within the last 3 months, or ongoing therapy with one of the study medications.
- Medical or psychological condition that would not permit completion of the trial or signing of informed consent.
- Patients with acute ST-elevation myocardial infarction
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Fundamentele wetenschap
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Enkel
Aantal wapens
Wapens en interventies
Deelnemersgroep / ArmDeelnemersgroep / Arm |
Interventie / BehandelingInterventie / Behandeling |
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Actieve vergelijker: Ticagrelor
Ticagrelor 180mg oral loading dose and 90mg b.i.d for 30 days following coronary artery stenting
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All patients will receive a drug eluting stent as clinically indicated.
Ticagrelor 180mg oral loading dose and 90mg b.i.d for 30 days following coronary artery stenting
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Actieve vergelijker: Clopidogrel
Clopidogrel 600mg loading dose + 75 mg once a day for 30 days following coronary artery stenting.
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All patients will receive a drug eluting stent as clinically indicated.
Clopidogrel 600mg loading dose + 75 mg once a day for 30 days following coronary artery stenting.
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Actieve vergelijker: Prasugrel
Prasugrel 60mg oral loading dose followed by 10mg once a day for 30 days following coronary artery stenting
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All patients will receive a drug eluting stent as clinically indicated.
Prasugrel 60mg oral loading dose followed by 10mg once a day for 30 days following coronary artery stenting
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Wat meet het onderzoek?
Primaire uitkomstmaten
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Change in FMD
Tijdsspanne: baseline and 1 month
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The primary endpoint is the change in flow-mediated dilation (FMD) (comparison before treatment versus after treatment and stenting) in the three study groups.
The mean FMD across the three measurements (1 day, 1 week, 1 month) performed after coronary artery stenting will be compared to the FMD value before drug administration and stenting.
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baseline and 1 month
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Secundaire uitkomstmaten
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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FMD 2 hours after loading dose
Tijdsspanne: baseline and 2 hours after loading dose
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Change in FMD 2 hours after the administration of the study drug
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baseline and 2 hours after loading dose
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L-FMC at 2 hours after the loading dose
Tijdsspanne: baseline and 2 hours
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change in L-FMC at two hours after the loading dose
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baseline and 2 hours
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L-FMC 1 month after loading dose
Tijdsspanne: baseline and 1 day after stenting
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change in flow-mediated constriction (L-FMC) (comparison before treatment versus after treatment and stenting) in the three study groups.
The mean L-FMC across the three measurements (1 day, 1 week, 1 month) performed after coronary artery stenting will be compared to the value before drug administration and stenting
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baseline and 1 day after stenting
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Safety and tolerability
Tijdsspanne: from baseline to 1 month after enrollment
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Number of patients with adverse events.
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from baseline to 1 month after enrollment
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Medewerkers en onderzoekers
Sponsor
Sponsor
Onderzoekers
Onderzoekers
- Studie stoel: Thomas Munzel, MD Prof., University Medical Center Mainz
Publicaties en nuttige links
Algemene publicaties
- Schnorbus B, Jurk K, Lackner KJ, Welk C, Munzel T, Gori T. Effects of Clopidogrel, Prasugrel and Ticagrelor on Microvascular Function and Platelet Reactivity in Patients With Acute Coronary Syndrome Undergoing Coronary Artery Stenting. A Randomized, Blinded, Parallel Group Trial. Front Cardiovasc Med. 2021 Dec 13;8:780605. doi: 10.3389/fcvm.2021.780605. eCollection 2021.
- Schnorbus B, Daiber A, Jurk K, Warnke S, Konig J, Krahn U, Lackner K, Munzel T, Gori T. Effects of clopidogrel, prasugrel and ticagrelor on endothelial function, inflammatory and oxidative stress parameters and platelet function in patients undergoing coronary artery stenting for an acute coronary syndrome. A randomised, prospective, controlled study. BMJ Open. 2014 May 6;4(5):e005268. doi: 10.1136/bmjopen-2014-005268.
Studie record data
Bestudeer belangrijke data
Studie start
Studie start
Primaire voltooiing (Werkelijk)
Primaire voltooiing
Studie voltooiing (Werkelijk)
Studie voltooiing
Studieregistratiedata
Eerst ingediend
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Eerst geplaatst
Updates van studierecords
Laatste update geplaatst (Schatting)
Laatste update geplaatst
Laatste update ingediend die voldeed aan QC-criteria
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
- Hartziekten
- Hart-en vaatziekten
- Vaatziekten
- Arteriosclerose
- Arteriële occlusieve ziekten
- Coronaire hartziekte
- Myocardiale ischemie
- Hart-en vaatziekte
- Fysiologische effecten van medicijnen
- Neurotransmitter agenten
- Moleculaire mechanismen van farmacologische werking
- Bloedplaatjesaggregatieremmers
- Purinerge P2Y-receptorantagonisten
- Purinerge P2-receptorantagonisten
- Purinerge antagonisten
- Purinerge middelen
- Ticagrelor
- Clopidogrel
- Prasugrelhydrochloride
Andere studie-ID-nummers
Andere studie-ID-nummers
- CTH-C1
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