- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT00891670
Comparison of Platelet Inhibition With Adjunctive Cilostazol Versus High Maintenance-Dose Clopidogrel According to Hepatic Cytochrome 2C19 Allele (CYP2C19) Polymorphism (ACCEL2C19)
Validation of Adjunctive Cilostazol According to CYP2C19 Polymorphism: Prospective, Randomized, Single-Center Trial:
Studieoversigt
Status
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
The additional platelet inhibition with clopidogrel, a thienopyridine inhibitor of the platelet P2Y12 adenosine diphosphate (ADP) receptor, has reduced the risk of ischemic events after coronary stent implantation. Because of inter-individual variability in platelet response to clopidogrel, a significant proportion of suboptimal platelet inhibition has been reported. In addition, persistent residual platelet reactivity measured with platelet function testing has shown the association with the cardiovascular outcomes after percutaneous coronary intervention(PCI).
Various clinical factors and genetic polymorphisms have been studied to predict the degree of antiplatelet response to clopidogrel. Interestingly, recent studies found that carriers of the loss-of-function hepatic cytochrome (CYP) 2C19 allele had significantly lower levels of the active metabolite of clopidogrel, diminished platelet inhibition, and a higher rate of major adverse cardiovascular events than did non-carriers, in the setting of PCI and acute coronary syndrome(ACS). These findings raise the need of solutions to overcome enhanced post-clopidogrel platelet reactivity by the influence of the loss-of-function CYP2C19 allele. Increasing the dose of clopidogrel and new potent P2Y12 antagonists(such as prasugrel) may be alternative antiplatelet regimens in patients with the loss-of-function CYP variant.
Cilostazol reversibly induces platelet inhibition via its blockade of phosphodiesterase (PDE) type 3 and is catalysed mainly by CYP3A. A recent study demonstrated that adjunctive cilostazol to dual antiplatelet therapy (triple antiplatelet therapy) intensified platelet inhibition as compared with a high maintenance-dose (MD) of 150 mg/day. Therefore, triple antiplatelet therapy could also be an alternative antiplatelet therapy to improve platelet inhibition and clinical outcomes in carriers of CYP2C19 mutant allele.
Undersøgelsestype
Tilmelding (Forventet)
Fase
- Fase 3
Kontakter og lokationer
Studiesteder
-
-
Gyeong-Nam
-
Jinju, Gyeong-Nam, Korea, Republikken, 660-702
- Gyeong-Sang National University Hospital
-
-
Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- The patient must be at least 18 years of age
- Significant coronary artery stenosis (> 70% by visual estimate)
- Elective coronary stent implantation
Exclusion Criteria:
- Acute myocardial infarction
- Hemodynamic instability active bleeding and bleeding diatheses
- Oral anticoagulation therapy with warfarin,use of peri-procedural glycoprotein IIb/IIIa inhibitors
- Contraindication to antiplatelet therapy
- Left ventricular ejection fraction < 30%
- Leukocyte count < 3,000/mm3, platelet count < 100,000/mm3
- AST or ALT ≥ 3 times upper normal
- Serum creatinine level ≥ 2.5 mg/dL
- stroke within 3 months
- Noncardiac disease with a life expectancy < 1 year
- Inability to follow the protocol
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
---|---|
Aktiv komparator: triple group
received cilostazol 100 mg twice daily in addition to aspirin 100mg and clopidogrel 75mg once daily
|
100mg twice daily for at least 1 month
Andre navne:
aspirin 100mg
|
Aktiv komparator: high maintenance dose group
received clopidogrel 150 mg/day with aspirin 100mg once daily
|
aspirin 100mg
75mg once daily (triple group arm) 150mg once daily (high maintenance dose group arm)
Andre navne:
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Tidsramme |
---|---|
Reduction of maximal platelet aggregation
Tidsramme: 30 days
|
30 days
|
Sekundære resultatmål
Resultatmål |
Tidsramme |
---|---|
Rate of high post-clopidogrel platelet reactivity
Tidsramme: 30 days
|
30 days
|
Samarbejdspartnere og efterforskere
Efterforskere
- Ledende efterforsker: Young-Hoon Jeong, MD, phD, Gyeong-Sang Natinal University Hospital
Publikationer og nyttige links
Generelle publikationer
- Jeong YH, Abadilla KA, Tantry US, Park Y, Koh JS, Kwak CH, Hwang JY, Gurbel PA. Influence of CYP2C19*2 and *3 loss-of-function alleles on the pharmacodynamic effects of standard- and high-dose clopidogrel in East Asians undergoing percutaneous coronary intervention: the results of the ACCEL-DOUBLE-2N3 study. J Thromb Haemost. 2013 Jun;11(6):1194-7. doi: 10.1111/jth.12200. No abstract available.
- Jeong YH, Kim IS, Park Y, Kang MK, Koh JS, Hwang SJ, Kwak CH, Hwang JY. Carriage of cytochrome 2C19 polymorphism is associated with risk of high post-treatment platelet reactivity on high maintenance-dose clopidogrel of 150 mg/day: results of the ACCEL-DOUBLE (Accelerated Platelet Inhibition by a Double Dose of Clopidogrel According to Gene Polymorphism) study. JACC Cardiovasc Interv. 2010 Jul;3(7):731-41. doi: 10.1016/j.jcin.2010.05.007.
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Forventet)
Studieafslutning (Forventet)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
- Myokardieiskæmi
- Hjertesygdomme
- Hjerte-kar-sygdomme
- Karsygdomme
- Koronar sygdom
- Koronar stenose
- Lægemidlers fysiologiske virkninger
- Neurotransmittermidler
- Molekylære mekanismer for farmakologisk virkning
- Vasodilatorer
- Autonome agenter
- Agenter fra det perifere nervesystem
- Enzymhæmmere
- Analgetika
- Sensoriske systemagenter
- Anti-inflammatoriske midler, ikke-steroide
- Analgetika, ikke-narkotisk
- Anti-inflammatoriske midler
- Antirheumatiske midler
- Fibrinolytiske midler
- Fibrinmodulerende midler
- Blodpladeaggregationshæmmere
- Cyclooxygenase-hæmmere
- Antipyretika
- Purinerge P2Y-receptorantagonister
- Purinerge P2-receptorantagonister
- Purinerge antagonister
- Purinerge midler
- Neuroprotektive midler
- Beskyttelsesagenter
- Bronkodilatatorer
- Anti-astmatiske midler
- Respiratoriske midler
- Fosfodiesterasehæmmere
- Fosfodiesterase 3-hæmmere
- Aspirin
- Clopidogrel
- Cilostazol
Andre undersøgelses-id-numre
- GCS-0901-D
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .
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