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

5 november 2026 uppdaterad av: 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.

Studieöversikt

Detaljerad beskrivning

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.

Studietyp

Observationell

Inskrivning (Beräknad)

200

Kontakter och platser

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

Studiekontakt

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

Studieorter

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

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

  • Barn
  • Vuxen
  • Äldre vuxen

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Testmetod

Icke-sannolikhetsprov

Studera befolkning

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.

Beskrivning

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

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

Hur är studien utformad?

Designdetaljer

  • Observationsmodeller: OTHER
  • Tidsperspektiv: RETROSPECTIVE

Vad mäter studien?

Primära resultatmått

Resultatmått
Tidsram
Overall diagnostic concordance between KaryoSolver and reference methods for the identification of clinically detectable structural variants.
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: through study completion, an average of 1 year
through study completion, an average of 1 year

Sekundära resultatmått

Resultatmått
Tidsram
Intra-run reproducibility of KaryoSolver, assessed as the agreement of results obtained from replicates analyzed in the same session
Tidsram: 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
Tidsram: 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
Tidsram: 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.
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: through study completion, an average of 1 year
through study completion, an average of 1 year

Samarbetspartners och utredare

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

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)

22 september 2026

Primärt slutförande (Beräknad)

1 juni 2027

Avslutad studie (Beräknad)

1 september 2027

Studieregistreringsdatum

Först inskickad

12 oktober 2026

Först inskickad som uppfyllde QC-kriterierna

5 november 2026

Första postat (Faktisk)

12 november 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

12 november 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

5 november 2026

Senast verifierad

1 oktober 2026

Mer information

Termer relaterade till denna studie

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

NEJ

IPD-planbeskrivning

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.

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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