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Study to Compare Traditional and Emerging Methods for Structural Variant Analysis in Prenatal, Postnatal, and Hematologic Samples

5. november 2026 opdateret af: 4bases Italia Srl

Multicenter Performance Study Using a Non-CE-marked in Vitro Diagnostic Medical Device (IVD) for the Standardization and Comparative Evaluation of Traditional and Emerging Methods for the Analysis of Structural Variants in Prenatal, Postnatal, and Oncohematological Samples

The study goal is to evaluate an innovative technology, KaryoSolver, which enables molecular karyotype reconstruction, in comparison with reference conventional methods, in terms of:

Presence or absence of clinically detectable structural variants; Type of alteration (aneuploidies, deletions, duplications); Copy number present. KaryoSolver is a software system for reconstructing the molecular karyotype from low-coverage genomic sequencing data using long-read technology.

The expected performance of the device under study is its ability to detect and classify the main clinically detectable structural variants within included samples in a manner consistent with the reference comparators, using a standardizable workflow, competitive turnaround times, and adequate reproducibility.

Studieoversigt

Status

Rekruttering

Betingelser

Detaljeret beskrivelse

In particular, the study contributes to demonstrating the following requirements:

  • scientific validity, through the correlation between Karyosolver and the aCGH/SNP array result used as a reference;
  • analytical performance, including accuracy, analytical sensitivity, analytical specificity, and reproducibility of the method, evaluated according to the criteria defined by ISO 5725;
  • clinical performance, through the evaluation of the test's ability to correctly identify copy number variations (CNVs) or regions of loss of heterozygosity (LOH/ROH) already reported in the samples selected for the study.

Undersøgelsestype

Observationel

Tilmelding (Anslået)

200

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

  • Navn: Giulia Fugazza, Clinical Project Manager
  • Telefonnummer: +41 (0) 91 224 70 81
  • E-mail: info@4bases.ch

Studiesteder

      • Florence, Italien, 50134
        • Rekruttering
        • SOD Diagnostica Genetica Azienda Osepdaliero-Universitaria Careggi
        • Kontakt:
        • Ledende efterforsker:
          • Elisabetta Pelo
      • Vicenza, Italien, 36100
        • Rekruttering
        • UOSD Genetica Medica e Genomica Azienda ULSS8 Berica
        • Kontakt:
        • Ledende efterforsker:
          • Daniela Zuccarello, Medical Doctor

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Barn
  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

The biological samples are residual samples already available at the two participating clinical centers. The samples originate from diagnostic workups that have already been completed and were not collected specifically for this study. In particular, residual samples related to prenatal, postnatal constitutional, and oncohematological diagnostics may be used, in accordance with the criteria set forth in the protocol.

Beskrivelse

Inclusion Criteria:

  1. Prenatal, postnatal, and oncohematological samples.
  2. Availability of results obtained using at least one reference method.
  3. Valid informed consent for use in research.
  4. Sufficient quantity and quality of DNA for analysis.

Exclusion Criteria:

  1. Absence of valid informed consent.
  2. Incomplete documentation of reference results.
  3. Insufficient or degraded DNA.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Observationsmodeller: OTHER
  • Tidsperspektiver: RETROSPECTIVE

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
Overall diagnostic concordance between KaryoSolver and reference methods for the identification of clinically detectable structural variants.
Tidsramme: through study completion, an average of 1 year
through study completion, an average of 1 year
Agreement on the presence/absence of clinically relevant chromosomal alterations between KaryoSolver and reference methods
Tidsramme: through study completion, an average of 1 year
through study completion, an average of 1 year
Agreement by category of identified alteration (aneuploidies, deletions, duplications) between KaryoSolver and reference methods
Tidsramme: through study completion, an average of 1 year
through study completion, an average of 1 year
Percentage of cases correctly classified by KaryoSolver compared to the reference comparator
Tidsramme: through study completion, an average of 1 year
through study completion, an average of 1 year

Sekundære resultatmål

Resultatmål
Tidsramme
Intra-run reproducibility of KaryoSolver, assessed as the agreement of results obtained from replicates analyzed in the same session
Tidsramme: through study completion, an average of 1 year
through study completion, an average of 1 year
Inter-run reproducibility of KaryoSolver, assessed as the agreement of results obtained from replicates analyzed in different sessions
Tidsramme: through study completion, an average of 1 year
through study completion, an average of 1 year
Average analytical run time per sample with KaryoSolver compared to reference methods
Tidsramme: through study completion, an average of 1 year
through study completion, an average of 1 year
Average total reporting time/turnaround time with KaryoSolver compared to reference methods.
Tidsramme: through study completion, an average of 1 year
through study completion, an average of 1 year
Reduction in technical/interpretive workload, assessed in terms of man-hours or the number of manual tasks required
Tidsramme: through study completion, an average of 1 year
through study completion, an average of 1 year
Average cost per sample analyzed with KaryoSolver compared to reference methods
Tidsramme: through study completion, an average of 1 year
through study completion, an average of 1 year
Proportion of cases potentially eligible for faster diagnosis using KaryoSolver compared to the standard workflow
Tidsramme: through study completion, an average of 1 year
through study completion, an average of 1 year

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

22. september 2026

Primær færdiggørelse (Anslået)

1. juni 2027

Studieafslutning (Anslået)

1. september 2027

Datoer for studieregistrering

Først indsendt

12. oktober 2026

Først indsendt, der opfyldte QC-kriterier

5. november 2026

Først opslået (Faktiske)

12. november 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

12. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

5. november 2026

Sidst verificeret

1. oktober 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • KaryoSolver-ONT

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

IPD-planbeskrivelse

IPD will not be shared because this is a non-interventional study which does not produce any health outcomes; it is, in fact, a performance study involving IVDs conducted solely for methodological research purposes, with no results being reported for diagnostic or therapeutic purposes.

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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