E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Adult patients with indication for conventional cardiac surgery (CABG, aortic replacement, or ascending aorta surgery) will be eligible |
Seront éligibles : les patients adultes (>/= 18 ans) avec indication à une chirurgie cardiaque selon les recommandations de la Société Européenne de Cardiologie (ESC) : pontages coronaires, remplacements valvulaires aortiques, remplacements de l’aorte ascendante |
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E.1.1.1 | Medical condition in easily understood language |
Adult patients with indication for conventional cardiac surgery |
Patients adultes avec indication à une chirurgie cardiaque selon les recommandations de la Société Européenne de Cardiologie |
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E.1.1.2 | Therapeutic area | Diseases [C] - Cardiovascular Diseases [C14] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10067824 |
E.1.2 | Term | Prophylaxis against atrial fibrillation |
E.1.2 | System Organ Class | 100000004865 |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
The main objective of this trial is to determine the efficacy of Botulinum toxin injection into epicardial fat pads for the prevention of postoperative AF in patients undergoing cardiac surgery within three months following cardiac surgery. |
L’objectif principal de cette étude est de montrer l’efficacité de la Toxine Botulique, injectée dans la graisse épicardique des veines pulmonaires en per-opératoire, dans la prévention de la FA post-opératoire dans les 3 mois, chez des patients bénéficiant d’une chirurgie cardiaque |
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E.2.2 | Secondary objectives of the trial |
Secondary objectives are to evaluate feasibility and tolerance, i.e. to assess the prevention of atrial tachyarrhythmia (not only AF but also atrial flutter, atrial tachycardia), safety of the surgical procedure, and to assess the total cost and incremental cost effectiveness. |
Les objectifs secondaires sont d’évaluer : - la tolérance de la procédure - l’efficacité dans la prévention de toutes arythmies atriales confondues : FA, flutter auriculaire, tachycardie atriale focale - les coûts globaux à 1 an et le rapport coût/efficacité |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
- Indication for cardiac surgery (CABG, aortic valve repair or replacement surgery, ascending aorta surgery), according to the European Heart Association guidelines. - Patients in hemodynamically stable condition. - Sinus rhythm at moment of randomisation. - Age: ≥18 to ≤80 years old. - Negative serum or urinary β-hCG for premenopausal women. - Patients able to attend several consultations at the centre. - Informed consent signed. - Affiliation to French social security regime. |
- Indication à une chirurgie cardiaque (pontages coronaires, remplacement valvulaire aortique ou réparation valvulaire, chirurgie de l’aorte ascendante), selon les recommandations de l’ESC - Patient stable sur le plan hémodynamique - Rythme sinusal au moment de la randomisation - Patient âgé de 18 à 80 ans inclus - Dosage β-hCH (urine ou sérum) négatif pour les femmes pré-ménopausées - Patients pouvant se rendre aux consultations du centre recruteur - Consentement éclairé signé - Affiliation au régime de sécurité sociale |
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E.4 | Principal exclusion criteria |
- Previous cardiac surgery. - Preoperative history of persistent AF or atrial tachycardia. - Planned maze procedure or pulmonary vein (PV) isolation. - Use of class I or III antiarrhythmic drugs within 5 elimination half-life of the drug (for amiodarone: one year). - Mitral or tricuspid valve surgery. - Congenital cardiomyopathy. - Neuro-muscular disease. - Protected populations e.g. breastfeeding women, patients under legal tutorship or curatorship. - Participation in another interventional trial. - Unwillingness to participate. - Contraindications to botulinum toxin under investigation or to the excipients: known hypersensitivity. |
- Antecedent de chirurgie cardiaque - Fibrillation atriale ou arythmie atriale persistante en pré-opératoire - Antécédent ou indication à une procédure d’isolation des veines pulmonaires - Patient sous anti-arythmique de classe I ou III non arrêté depuis 5 demies vies (1 an pour l’Amiodarone). - Chirurgie mitrale ou tricuspide - Cardiopathie congénitale complexe - Maladie neuro-musculaire - femme allaitante, patient sous tutelle ou curatelle. - Participation à une autre étude interventionnelle - Refus de participation - Hypersensibilité connue à la toxine botulique |
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary endpoint is the incidence of new onset of postoperative AF in patients undergoing cardiac surgery at 3 months defined as atrial arrhythmia during at least 30 seconds continuously. Two blinded cardiologists will independently adjudicate the primary end point. |
Le critère principal est l’incidence de la survenue d’une fibrillation atriale, définie par une arythmie atriale de plus de 30 secondes consécutives, durant les 3 premiers mois après une chirurgie cardiaque.
2 cardiologues indépendants adjudiqueront les évènements survenus. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
- Death rate at 12 months. - Rate of major adverse cardiovascular events at 3 months: conduction troubles such as atrioventricular block or the need for transient or permanent placement of a pacemaker, congestive heart failure, major bleeding, stroke and arterial thromboembolic events. - Adverse events (AE) and serious adverse events (SAE) by treatment group. - Incidence of atrial tachyarrhythmia including atrial fibrillation, but also atrial flutter and atrial tachycardia at 3 months, and each arrhythmia individually. - Incidence of new onset of postoperative AF depending on the following subgroups: age, gender, heart failure (defined by left ventricular ejection fraction < 35%), left atrial enlargement (LA volume index > 52 mL/m2) or LA diameter index > 48 mm/m2, EuroSCORE 2, eGFR < 60 mL/min / 1.73m2. - Intervals from end of surgery to extubation and discharge from intensive care unit. - Duration of the hospital stay from randomisation to the time of eligibility for discharge (postoperative length of stay). - Unplanned readmission rate at 3 months and 12 months for cardiovascular cause or haemorrhage. - Number of antiarrhythmic drugs and curative anticoagulation treatments within 3 months following cardiac surgery. - Total hospital cost: initial admission and readmissions for cardiovascular cause. - Incremental cost effectiveness ratio (additional cost per additional survival, additional QALY or per adverse event recognised). |
- Mortalité à 1 an - Taux d’événements indésirables majeurs à 3 mois par groupe de traitement : troubles de la conduction de haut degré (comme bloc atrio-ventriculaire) ou nécessité de mise en place d’un pace maker transitoire ou définitif, insuffisance cardiaque congestive, saignement majeur, accident vasculaire cérébral ou accident embolique systémique - Evénements indésirables graves et non graves par groupe de traitement - Incidence de toute arythmie atriale confondue (FA, flutter auriculaire, tachycardie atriale focale) à 3 mois et par type d’arythmie. - Incidence de la FA par sous-groupes : âge, sexe, FEVG < ou > à 35%, taille de l’oreillette gauche (diamètre indexé > 48 mm/m2 _ volume indexé > 52 mL/m2), EuroSCORE 2, eGFR<60 mL/min/1.73m2. - Durée d’intubation et du séjour en réanimation. - Durée d’hospitalisation (entre la randomisation et la sortie) - Taux de réhospitalisations non programmées dans les 3 premiers mois pour cause cardio-vasculaire ou saignement. - Recours aux anti-arythmiques ou à une anticoagulation curative dans les 3 mois post-opératoires. - Coût global : hospitalisation initiale et réhospitalisations pour causes cardio-vasculaires ou saignements. - Rapport coût efficacité |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
at 3 months and 12 months |
à 3 mois et 12 mois |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | Yes |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | Yes |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 6 |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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LVLS |
Dernière Visite Dernier Patient |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | |
E.8.9.1 | In the Member State concerned months | 48 |
E.8.9.1 | In the Member State concerned days | |