- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT07690436
Retinal Fundus Imaging and OCT Imaging for Ocular Detection of ATTR-CM
A Multicenter Pilot Study to Investigate Ocular Involvement and the Potential of Ocular Imaging for Non-invasive Screening for Transthyretin Amyloid Cardiomyopathy (ATTR-CM)
Aperçu de l'étude
Statut
Les conditions
Description détaillée
Type d'étude
Inscription (Estimé)
Contacts et emplacements
Coordonnées de l'étude
- Nom: AstraZeneca Clinical Study Information Center
- Numéro de téléphone: 1-877-240-9479
- E-mail: information.center@astrazeneca.com
Lieux d'étude
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Berlin, Allemagne, 13353
- Pas encore de recrutement
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Essen, Allemagne, 45147
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Frankfurt am Main, Allemagne, 60596
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Würzburg, Allemagne, 97078
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L'Hospitalet de Llobregat, Espagne, 08907
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Madrid, Espagne, 28040
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Palma de Mallorca, Espagne, 07198
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Guimarães, Le Portugal, 4835-044
- Recrutement
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Lisbon, Le Portugal, 1169-024
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Lisbon, Le Portugal, 1649-028
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Lisbon, Le Portugal, 2799-523
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Gothenburg, Suède, 413 45
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Solna, Suède, 171 64
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Vasterbottens Lan, Suède, 907 37
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California
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Palo Alto, California, États-Unis, 94305
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Florida
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Jacksonville, Florida, États-Unis, 32224
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Illinois
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Chicago, Illinois, États-Unis, 60611
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Massachusetts
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Boston, Massachusetts, États-Unis, 02114
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Oregon
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Portland, Oregon, États-Unis, 97239-3098
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Tennessee
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Germantown, Tennessee, États-Unis, 38138
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
Méthode d'échantillonnage
Population étudiée
La description
Inclusion Criteria:
- 1. Participant must be 18 years and older at the time of signing the informed consent form.
- 2. Participants with either of the following:
- - Positive ATTR-CM cases: Participants with a clinical diagnosis of transthyretin amyloid cardiomyopathy (ATTR-CM) with amyloid deposits in cardiac or non-cardiac tissue confirmed by Congo Red (or equivalent) staining, or DPD-Tc, PYP-Tc, or HMDP-Tc scintigraphy with Grade 2 or 3 cardiac uptake in the absence of abnormal light chains ratio.
- - Control population: Participants with a clinical diagnosis of guideline-directed medical therapy-directed heart failure (HF) and either:
- a) Subgroup A: Definitively excluded ATTR-CM amyloidosis: negative cardiac or non-cardiac tissue biopsy for amyloid, or negative technetium scintigraphy within the past 2 years.
- b) Subgroup B: Low probability of ATTR-CM amyloidosis, not definitively excluded: absence of amyloid-suggestive features on echocardiography (ECHO), electrocardiography (ECG), or cardiac magnetic resonance imaging (MRI) within the past 2 years, with documented clinical assessment indicating HF etiology unlikely attributable to amyloidosis; no amyloid-specific testing (technetium scintigraphy or biopsy) performed.
- 3. Participant or legally authorized representative (LAR) must sign the informed consent form.
Exclusion Criteria:
- 1. Any known eye condition that may preclude clear imaging of the retina.
- 2. Any known history of amyloid light-chain (AL) amyloidosis.
- 3. Any ocular surgery that, in the opinion of the investigator, makes participation in the study undesirable.
- 4. Any medical condition that, in the opinion of the investigator, makes participation in the study undesirable, for example, if the participant is critically unwell or requires ongoing emergency treatment.
- 5. Involvement in the planning and/or conduct of the study.
- 6. In the opinion of the investigator, the participant is unlikely to comply with study procedures, restrictions, and requirements.
- 7. Previous enrollment in the present study.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
Cohortes et interventions
Groupe / Cohorte |
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ATTR-CM
Participants with a confirmed clinical diagnosis of transthyretin amyloid cardiomyopathy (ATTR-CM).
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HF Control
Participants with guideline-directed medical therapy-directed heart failure and documentation within the past 2 years that either excludes transthyretin amyloid cardiomyopathy (ATTR-CM) or indicates a low probability of ATTR-CM.
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
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Comparison of per-participant confidence scores distributions between ATTR-CM cases and HF controls without ATTR-CM
Délai: At a single assessment time point within 90 days following informed consent form signing
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Per-participant confidence score distributions generated by the machine learning (ML) model will be compared between participants with clinically confirmed transthyretin amyloid cardiomyopathy (ATTR-CM) and heart failure controls without ATTR-CM.
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At a single assessment time point within 90 days following informed consent form signing
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Qualitative assessment of features learned indicative of ATTR pathology
Délai: At a single assessment time point within 90 days following informed consent form signing
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Features learned by the machine learning (ML) model that are indicative of transthyretin amyloid pathology will be qualitatively assessed.
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At a single assessment time point within 90 days following informed consent form signing
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
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Sensitivity, specificity, and Area Under the Receiver Operating Characteristic Curve (AUROC) of the ML model to correctly identify ATTR-CM cases based on ocular imaging data
Délai: At a single assessment time point within 90 days following informed consent form signing
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Sensitivity, specificity, and area under the receiver operating characteristic curve will be used to describe the performance of the machine learning model for distinguishing participants with clinically confirmed transthyretin amyloid cardiomyopathy (ATTR-CM) from heart failure controls without ATTR-CM based on ocular imaging data.
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At a single assessment time point within 90 days following informed consent form signing
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Descriptive comparison of score distributions across study population strata and demographics
Délai: At a single assessment time point within 90 days following informed consent form signing
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Score distributions generated by the machine learning model will be descriptively compared across study population strata and demographic groups.
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At a single assessment time point within 90 days following informed consent form signing
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Collaborateurs et enquêteurs
Parrainer
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Achèvement primaire (Estimé)
Achèvement de l'étude (Estimé)
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
Mots clés
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- D8455R00001
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Description du régime IPD
Qualified researchers can request access to anonymized individual patient-level data from AstraZeneca group of companies sponsored clinical trials via the request portal Vivli.org. All requests will be evaluated as per the AZ disclosure commitment: https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.
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Délai de partage IPD
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Informations sur les médicaments et les dispositifs, documents d'étude
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