- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT03658005
Effect of Free Ticagrelor Fraction on Platelet Membrane Post MI (PLATIME)
Population-Based Pharmacokinetic / Pharmacodynamic Modeling of the Effect of Free Ticagrelor Fraction on the Platelet Membrane in Post Myocardial Infarction Patients
The purpose of this study is to assess:
- the population pharmacokinetics of unbound ticagrelor and its metabolite in acute coronary syndrome patients treated by ticagrelor
- ticagrelor and its metabolite levels by LC-MS/MS
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Ticagrelor is an anti-platelet agent of the cyclopentyltriazolopyrimidine class. It is administered by the oral route, rapidly absorbed (2-3 hours), and has a bio-availability estimated at around 36%. Contrary to other P2Y12 inhibitors, ticagrelor is not a pro-drug and does not need to be metabolized to exert is pharmacodynamic effect. It had been previously showed that stimulation of platelets by ADP or inhibitors of platelets by ticagrelor modified the organisation of the platelet membrane, with a re-distribution of cholesterol and P2Y12 receptors towards the lipid rafts. This suggests that lipid membranes and cholesterol may play an important role in the anti-platelet activity of ticagrelor.
In this context, the aim of the study is to assess:
- the population pharmacokinetics of unbound ticagrelor and its metabolite in acute coronary syndrome patients treated by ticagrelor
- ticagrelor and its metabolite levels by LC-MS/MS.
Type d'étude
Inscription (Anticipé)
Contacts et emplacements
Coordonnées de l'étude
- Nom: Jennifer Lagoutte-Renosi, MPharm
- Numéro de téléphone: +33370632379
- E-mail: jlagoutte@chu-besancon.fr
Lieux d'étude
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Besançon, France, 25000
- Recrutement
- CHU Besançon
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
Méthode d'échantillonnage
Population étudiée
La description
Inclusion Criteria:
- Patients aged over 18 years and less than 90 years,
- Patients admitted for myocardial infarction treated with ticagrelor in association with aspirin.
- Patients affiliated to a social security system (or be a beneficiary thereof);
- Sign written informed consent indicating that they have understood the study procedures and objectives, and that they accept to participate and adhere to the study requirements.
Exclusion Criteria:
- Patients with limited legal capacity or patients under legal guardianship
- Patients under judicial protection
- Patients not affiliated to any social security system
- Patients taking any antiplatelet agent other than ticagrelor Patients taking ticagrelor for <48 hours (treatment not stabilised) Patients with hemoglobin concentration <10 g/dL on the most recent blood test
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Modèles d'observation: Cohorte
- Perspectives temporelles: Éventuel
Cohortes et interventions
Groupe / Cohorte |
Intervention / Traitement |
|---|---|
|
Study cohort
Adult (>18 years, <90 years) patients admitted and treated for acute myocardial infarction, and whose treatment includes ticagrelor in association with aspirin. Blood samples will be taken at 3 timepoints between two doses of ticagrelor (taken at 12 hours interval). |
3 blood samples, for a maximum of 60mL, will be taken at 0-3h, 3-6h and >6h, between two doses of ticagrelor (taken at 0 and 12 hours).
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
concentration of unbound ticagrelor and its metabolite
Délai: at 3 hours after administration of the first dose of ticagrelor
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Concentration of unbound ticagrelor and its active metabolite in acute coronary syndrome patients treated by ticagrelor and aspirin
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at 3 hours after administration of the first dose of ticagrelor
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concentration of unbound ticagrelor and its metabolite
Délai: at 6 hours after administration of the first dose of ticagrelor
|
Concentration of unbound ticagrelor and its active metabolite in acute coronary syndrome patients treated by ticagrelor and aspirin
|
at 6 hours after administration of the first dose of ticagrelor
|
|
concentration of unbound ticagrelor and its metabolite
Délai: at 12 hours after administration of the first dose of ticagrelor
|
Concentration of unbound ticagrelor and its active metabolite in acute coronary syndrome patients treated by ticagrelor and aspirin
|
at 12 hours after administration of the first dose of ticagrelor
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Assess the method of determination of ticagrelor concentration
Délai: at 3 hours after administration of the first dose of ticagrelor
|
Identify the optimum settings for the measurement of the concentration of ticagrelor (total and free fraction) and its active metabolite in the plasma by LC-MS/MS
|
at 3 hours after administration of the first dose of ticagrelor
|
|
Assess the method of determination of ticagrelor concentration
Délai: at 6 hours after administration of the first dose of ticagrelor
|
Identify the optimum settings for the measurement of the concentration of ticagrelor (total and free fraction) and its active metabolite in the plasma by LC-MS/MS
|
at 6 hours after administration of the first dose of ticagrelor
|
|
Assess the method of determination of ticagrelor concentration
Délai: at 12 hours after administration of the first dose of ticagrelor
|
Identify the optimum settings for the measurement of the concentration of ticagrelor (total and free fraction) and its active metabolite in the plasma by LC-MS/MS
|
at 12 hours after administration of the first dose of ticagrelor
|
Collaborateurs et enquêteurs
Les enquêteurs
- Chercheur principal: Nicolas Meneveau, MD, PhD, Dept of Cardiology, CHU Besancon
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Achèvement primaire (Anticipé)
Achèvement de l'étude (Anticipé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- P/2018/371
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Informations sur les médicaments et les dispositifs, documents d'étude
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