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

24. august 2026 oppdatert 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.

Studieoversikt

Status

Rekruttering

Forhold

Detaljert beskrivelse

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.

Studietype

Observasjonsmessig

Registrering (Antatt)

500

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studiesteder

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

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen
  • Eldre voksen

Tar imot friske frivillige

Nei

Prøvetakingsmetode

Ikke-sannsynlighetsprøve

Studiepopulasjon

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.

Beskrivelse

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

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

Kohorter og intervensjoner

Gruppe / 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.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Comparison of per-participant confidence scores distributions between ATTR-CM cases and HF controls without ATTR-CM
Tidsramme: 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
Tidsramme: 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

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
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
Tidsramme: 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
Tidsramme: 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

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

AstraZeneca

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

8. juli 2026

Primær fullføring (Antatt)

18. juni 2027

Studiet fullført (Antatt)

18. juni 2027

Datoer for studieregistrering

Først innsendt

2. juli 2026

Først innsendt som oppfylte QC-kriteriene

2. juli 2026

Først lagt ut (Faktiske)

8. juli 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

26. august 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

24. august 2026

Sist bekreftet

1. august 2026

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • D8455R00001

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

JA

IPD-planbeskrivelse

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.

IPD-delingstidsramme

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.

Tilgangskriterier for IPD-deling

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.

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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