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Retinal Fundus Imaging and OCT Imaging for Ocular Detection of ATTR-CM

24 augusti 2026 uppdaterad av: AstraZeneca

A Multicenter Pilot Study to Investigate Ocular Involvement and the Potential of Ocular Imaging for Non-invasive Screening for Transthyretin Amyloid Cardiomyopathy (ATTR-CM)

This multicenter pilot study will enroll adult participants with a confirmed clinical diagnosis of transthyretin amyloid cardiomyopathy (ATTR-CM) and heart failure (HF) controls with documentation within the past 2 years that either excludes ATTR-CM or indicates a low probability of ATTR-CM. Ocular imaging and other study data will be collected to assess the feasibility of developing and preliminarily evaluating a machine learning model to discriminate ATTR-CM cases from HF controls without ATTR-CM.

Studieöversikt

Status

Rekrytering

Betingelser

Detaljerad beskrivning

A participant who does not complete the study within 90 days from enrollment will be discontinued from the study. A participant may be discontinued from the study at any time at the discretion of the investigator for behavioral or compliance reasons. A participant may withdraw from the study at any time at the participant's own request for any reason (or without providing any reason) without any implication on participant's rights.

Studietyp

Observationell

Inskrivning (Beräknad)

500

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studiekontakt

Studieorter

  • Förenta staterna
    • California
      • Palo Alto, California, Förenta staterna, 94305
        • Har inte rekryterat ännu
        • Research Site
    • Florida
      • Jacksonville, Florida, Förenta staterna, 32224
        • Har inte rekryterat ännu
        • Research Site
    • Illinois
      • Chicago, Illinois, Förenta staterna, 60611
        • Har inte rekryterat ännu
        • Research Site
    • Massachusetts
      • Boston, Massachusetts, Förenta staterna, 02114
        • Har inte rekryterat ännu
        • Research Site
    • Oregon
      • Portland, Oregon, Förenta staterna, 97239-3098
        • Har inte rekryterat ännu
        • Research Site
    • Tennessee
      • Germantown, Tennessee, Förenta staterna, 38138
        • Har inte rekryterat ännu
        • Research Site
  • Portugal
      • Guimarães, Portugal, 4835-044
        • Rekrytering
        • Research Site
      • Lisbon, Portugal, 1169-024
        • Har inte rekryterat ännu
        • Research Site
      • Lisbon, Portugal, 1649-028
        • Har inte rekryterat ännu
        • Research Site
      • Lisbon, Portugal, 2799-523
        • Har inte rekryterat ännu
        • Research Site
  • Spanien
      • L'Hospitalet de Llobregat, Spanien, 08907
        • Har inte rekryterat ännu
        • Research Site
      • Madrid, Spanien, 28040
        • Har inte rekryterat ännu
        • Research Site
      • Palma de Mallorca, Spanien, 07198
        • Har inte rekryterat ännu
        • Research Site
  • Sverige
      • Gothenburg, Sverige, 413 45
        • Har inte rekryterat ännu
        • Research Site
      • Solna, Sverige, 171 64
        • Har inte rekryterat ännu
        • Research Site
      • Vasterbottens Lan, Sverige, 907 37
        • Har inte rekryterat ännu
        • Research Site
  • Tyskland
      • Berlin, Tyskland, 13353
        • Har inte rekryterat ännu
        • Research Site
      • Essen, Tyskland, 45147
        • Har inte rekryterat ännu
        • Research Site
      • Frankfurt am Main, Tyskland, 60596
        • Har inte rekryterat ännu
        • Research Site
      • Würzburg, Tyskland, 97078
        • Har inte rekryterat ännu
        • Research Site

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

  • Vuxen
  • Äldre vuxen

Tar emot friska volontärer

Nej

Testmetod

Icke-sannolikhetsprov

Studera befolkning

The study population will comprise adult participants with a confirmed clinical diagnosis of transthyretin amyloid cardiomyopathy (ATTR-CM) and heart failure (HF) controls who have documentation within the past 2 years that either excludes ATTR-CM or indicates a low probability of ATTR-CM.

Beskrivning

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.

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

Kohorter och interventioner

Grupp / Kohort
ATTR-CM
Participants with a confirmed clinical diagnosis of transthyretin amyloid cardiomyopathy (ATTR-CM).
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.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Comparison of per-participant confidence scores distributions between ATTR-CM cases and HF controls without ATTR-CM
Tidsram: At a single assessment time point within 90 days following informed consent form signing
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.
At a single assessment time point within 90 days following informed consent form signing
Qualitative assessment of features learned indicative of ATTR pathology
Tidsram: At a single assessment time point within 90 days following informed consent form signing
Features learned by the machine learning (ML) model that are indicative of transthyretin amyloid pathology will be qualitatively assessed.
At a single assessment time point within 90 days following informed consent form signing

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
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
Tidsram: At a single assessment time point within 90 days following informed consent form signing
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.
At a single assessment time point within 90 days following informed consent form signing
Descriptive comparison of score distributions across study population strata and demographics
Tidsram: At a single assessment time point within 90 days following informed consent form signing
Score distributions generated by the machine learning model will be descriptively compared across study population strata and demographic groups.
At a single assessment time point within 90 days following informed consent form signing

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

AstraZeneca

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

8 juli 2026

Primärt slutförande (Beräknad)

18 juni 2027

Avslutad studie (Beräknad)

18 juni 2027

Studieregistreringsdatum

Först inskickad

2 juli 2026

Först inskickad som uppfyllde QC-kriterierna

2 juli 2026

Första postat (Faktisk)

8 juli 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

26 augusti 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

24 augusti 2026

Senast verifierad

1 augusti 2026

Mer information

Termer relaterade till denna studie

Nyckelord

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

  • D8455R00001

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

JA

IPD-planbeskrivning

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.

Yes, indicates that AZ are accepting requests for IPD, but this does not mean all requests will be shared.

Tidsram för IPD-delning

AstraZeneca will meet or exceed data availability as per the commitments made to the EFPIA PhRMA Data Sharing Principles. For details of our timelines, please rerefer to our disclosure commitment at https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.

Kriterier för IPD Sharing Access

When a request has been approved AstraZeneca will provide access to the anonymized individual patient-level data via secure research environment Vivli.org. Signed Data Usage Agreement (non-negotiable contract for data accessors) must be in place before accessing requested information.

Läkemedels- och apparatinformation, studiedokument

Studerar en amerikansk FDA-reglerad läkemedelsprodukt

Nej

Studerar en amerikansk FDA-reglerad produktprodukt

Nej

Denna information hämtades direkt från webbplatsen clinicaltrials.gov utan några ändringar. Om du har några önskemål om att ändra, ta bort eller uppdatera dina studieuppgifter, vänligen kontakta register@clinicaltrials.gov. Så snart en ändring har implementerats på clinicaltrials.gov, kommer denna att uppdateras automatiskt även på vår webbplats .

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