- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT07620925
Derivation and Validation of the Aortic Valve Echocardiographic Calcium Score to Confirm Severe Aortic Stenosis: the Echo-AVCS Study (Echo-AVCS)
3 juin 2026 mis à jour par: Emanuele Barbato, Azienda Ospedaliera "Sant'Andrea"
The Echo-AVCS Study is an investigator-initiated, prospective, multicenter observational study designed to derive and validate an artificial intelligence (AI)-based echocardiographic aortic valve calcium score (Echo-AVCS) for confirming severe aortic stenosis (AS).
Transthoracic echocardiography (TTE) is the standard imaging modality for assessing AS severity; however, discrepancies between valve area and transvalvular gradient measurements may complicate diagnosis, particularly in low-flow or discordant AS presentations.
Cardiac computed tomography (CT)-derived aortic valve calcium scoring is currently used to resolve diagnostic uncertainty, but it involves additional cost and radiation exposure.
This study will enroll consecutive adult patients undergoing clinically indicated TTE and cardiac CT with calcium scoring performed within 3 months.
Standardized echocardiographic images will be centrally analyzed using dedicated AI-based image segmentation and machine learning methods to quantify aortic valve calcification directly from TTE images.
CT-derived aortic valve calcium score will serve as the reference standard.
The primary objective is to derive and validate the Echo-AVCS score for identifying severe AS.
Secondary objectives include determination of sex-specific diagnostic thresholds, correlation with CT calcium volume, association with symptoms and NYHA class, and evaluation of prognostic associations with aortic valve replacement, heart failure hospitalization, cardiovascular events, and mortality at 1-year follow-up.
Aperçu de l'étude
Statut
Recrutement
Les conditions
Intervention / Traitement
Type d'étude
Observationnel
Inscription (Estimé)
250
Contacts et emplacements
Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.
Coordonnées de l'étude
- Nom: Emanuele Barbato, Full Professor
- Numéro de téléphone: 0633778763
- E-mail: emanuele.barbato@uniroma1.it
Lieux d'étude
-
-
-
Bologna, Italie
- Recrutement
- University of Bologna
-
Contact:
- Carmine Pizzi
- E-mail: carmine.pizzi@unibo.it
-
Sous-enquêteur:
- Luca Bergamaschi
-
Sous-enquêteur:
- Matteo Armillotta
-
Sous-enquêteur:
- Francesco Angeli
-
Milan, Italie
- Recrutement
- Centro Cardiologico Monzino
-
Contact:
- Gianluca Pontone
- Numéro de téléphone: 02 58002574
- E-mail: gianluca.pontone@cardiologicomonzino.it
-
Sous-enquêteur:
- Saima Mushtaq, MD, PhD
-
Sous-enquêteur:
- Maria Elisabetta Mancini, MD
-
Milan, Italie
- Recrutement
- IRCCS Galeazzi-Sant'Amborgio
-
Contact:
- Edoardo Conte
- E-mail: edoardo.conte86@gmail.com
-
Sous-enquêteur:
- Tommaso Viva
-
Sous-enquêteur:
- Davide Marchetti
-
Milan, Italie
- Actif, ne recrute pas
- Politecnico di Milano
-
Roma, Italie
- Recrutement
- Sant'Andrea University Hospital
-
Sous-enquêteur:
- Pasquale Paolisso, MD, PhD
-
Sous-enquêteur:
- Marta Belmonte, MD, PhD
-
Contact:
- Emanuele Barbato, Full Professor
- Numéro de téléphone: 0633778763
- E-mail: emanuele.barbato@uniroma1.it
-
Contact:
- Pasquale Paolisso, MD, PhD
- E-mail: pasquale.paolisso@gmail.com
-
-
Critères de participation
Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
Non
Méthode d'échantillonnage
Échantillon de probabilité
Population étudiée
The Echo-CA score Study is an investigator-initiated, prospective, multicenter study of consecutive patients undergoing clinically indicated standard transthoracic echocardiography and cardiac CT with available calcium score performed within 3 months.
The study population is expected to include approximately 50% patients with severe AS and 50% without severe AS, in order to ensure a balanced case-control distribution and optimize the precision of diagnostic performance estimates.
All patients will be managed according to current standards of care.
Clinical evaluation will include systematic collection of cardiovascular risk factors, comorbidities, medical therapy, and detailed symptom assessment (angina, syncope, dyspnea), as well as NYHA functional class.
Each participant will undergo: i) comprehensive transthoracic echocardiography (TTE) performed according to current ESC Guideline; ii) cardiac CT with aortic valve calcium quantification, performed according to contemporary acquisiti
La description
Inclusion Criteria:
- Age > 18 years old
- Clinical indication for standard transthoracic echocardiography.
- Clinical indication for cardiac CT with available calcium score.
- 3-month time interval between transthoracic echocardiography and cardiac CT.
- Able to give informed consent.
Exclusion Criteria:
- Patients with inadequate transthoracic echocardiographic images.
- Poor quality cardiac CT, inadequate for standard calcium score assessment.
- Patients with known prior stents and/or coronary artery bypass grafts.
- Patients with known previous percutaneous or surgical aortic valve replacement.
- Patients with active or a history of endocarditis.
- Patients with congenital heart defects (other than isolated bicuspid aortic valve).
Plan d'étude
Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.
Comment l'étude est-elle conçue ?
Détails de conception
Cohortes et interventions
Groupe / Cohorte |
Intervention / Traitement |
|---|---|
|
Patients undergoing transthoracic echocardiography and cardiac-CT with available calcium score
Consecutive patients undergoing clinically indicated standard transthoracic echocardiography and cardiac CT with available calcium score performed within 3 months
|
This is a non-interventional, observational study in which all patients will undergo clinically indicated standard-of-care transthoracic echocardiography (TTE) and cardiac computed tomography (CT) with aortic valve calcium scoring.
No investigational drug, device, or additional invasive procedure will be administered as part of the study.
Echocardiographic images acquired during routine clinical practice will be anonymized and centrally analyzed using dedicated artificial intelligence-based software to derive and validate the echocardiographic aortic valve calcium score.
Patient management, follow-up, and therapeutic decisions, including referral for aortic valve replacement, will remain entirely at the discretion of the treating physicians according to current clinical guidelines and standard practice.
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Derivation of Echo-AVCS
Délai: 6 months
|
To derive an echocardiographic aortic valve calcium score (Echo-AVCS) for confirming severe aortic stenosis (AS), using CT-derived aortic valve calcium as the reference standard.
|
6 months
|
|
Validation of Echo-AVCS
Délai: 6 months
|
To validate an echocardiographic aortic valve calcium score (Echo-AVCS) for confirming severe aortic stenosis (AS), using CT-derived aortic valve calcium as the reference standard.
|
6 months
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Sex-specific thresholds
Délai: 6 months
|
To determine sex-specific thresholds (male vs. female) for the echocardiographic aortic valve calcium score (Echo-AVCS).
|
6 months
|
|
Correlation between the echocardiographic aortic valve calcium score and the calcium volume (mm³)
Délai: 6 months
|
To assess the correlation between the echocardiographic aortic valve calcium score and the calcium volume (mm³) measured by cardiac computed tomography.
|
6 months
|
|
Correlation of the echocardiographic aortic valve calcium score and the presence and occurrence of patient symptoms
Délai: 1-year
|
To correlate the echocardiographic aortic valve calcium score and the presence and occurrence of patient symptoms (angina, syncope, and dyspnea).
|
1-year
|
|
Association between the echocardiographic aortic valve calcium score and the time to aortic valve replacement (AVR)
Délai: 1 year
|
To evaluate the association between the echocardiographic aortic valve calcium score and the time to aortic valve replacement (AVR) according to current ESC Guidelines.
|
1 year
|
|
Correlation of the echocardiographic aortic valve calcium score with the patient's NYHA Class.
Délai: 1 year
|
To correlate the echocardiographic aortic valve calcium score with the patient's NYHA Class.
|
1 year
|
|
Correlation of the echocardiographic aortic valve calcium score with all-cause death at 1-year follow-up.
Délai: 1 year
|
To correlate the echocardiographic aortic valve calcium score with all-cause death at 1-year follow-up.
|
1 year
|
|
Correlation of the echocardiographic aortic valve calcium score with cardiovascular death at 1-year follow-up.
Délai: 1 year
|
To correlate the echocardiographic aortic valve calcium score with cardiovascular death at 1-year follow-up.
|
1 year
|
|
Correlation of the echocardiographic aortic valve calcium score with hospitalization for heart failure at 1-year follow-up.
Délai: 1 year
|
To correlate the echocardiographic aortic valve calcium score with hospitalization for heart failure at 1-year follow-up.
|
1 year
|
|
Correlation of the echocardiographic aortic valve calcium score with major adverse cardiovascular events (cardiovascular death and hospitalization for heart failure) at 1-year follow-up.
Délai: 1 year
|
To correlate the echocardiographic aortic valve calcium score with major adverse cardiovascular events (cardiovascular death and hospitalization for heart failure) at 1-year follow-up.
|
1 year
|
Collaborateurs et enquêteurs
C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.
Dates d'enregistrement des études
Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.
Dates principales de l'étude
Début de l'étude (Réel)
1 mars 2026
Achèvement primaire (Estimé)
31 décembre 2026
Achèvement de l'étude (Estimé)
31 décembre 2027
Dates d'inscription aux études
Première soumission
27 mai 2026
Première soumission répondant aux critères de contrôle qualité
27 mai 2026
Première publication (Réel)
2 juin 2026
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
4 juin 2026
Dernière mise à jour soumise répondant aux critères de contrôle qualité
3 juin 2026
Dernière vérification
1 mai 2026
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
- Maladie de la valve aortique
- Maladies cardiovasculaires
- Maladies cardiaques
- Maladies des valves cardiaques
- Obstruction de la sortie ventriculaire
- Sténose valvulaire aortique
- Valve aortique, calcification de
- Techniques et procédures de diagnostic
- Diagnostic
- Imagerie diagnostique
- Techniques de diagnostic, cardiovasculaire
- Tests de la fonction cardiaque
- Techniques d'imagerie cardiaque
- Échographie
- Échocardiographie
Autres numéros d'identification d'étude
- 0335/2026
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
INDÉCIS
Informations sur les médicaments et les dispositifs, documents d'étude
Étudie un produit pharmaceutique réglementé par la FDA américaine
Non
Étudie un produit d'appareil réglementé par la FDA américaine
Non
Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .