NGS-based assay for frequent newborn inherited diseases: from development to implementation

BioRxiv : the Preprint Server for Biology
Tamara SimakovaAlexander Pavlov

Abstract

NGS is a powerful tool for the diagnostics of inherited diseases. A number of studies devoted to the development and validation of targeted NGS panels are published. Here we present not only development and validation of an assay, but report our experience on introduction of a new approach into the real clinical practice. The assay is intended for the diagnostics of frequent newborn inherited diseases: cystic fibrosis, phenylketonuria and galactosemia. The analysis is performed on the Ion PGM sequencing platform and allows the detection of single-nucleotide variations as well as copy number variants. We developed the software performing data quality control, providing decision-support variant annotation and generating the medical report that enables clinical application of the assay. Analytical validation of the assay was performed by bi-directional Sanger sequencing of the most part of the targeted region. Clinical validation was performed by multicenter blind testing of clinical and control samples. Sensitivity and specificity of the assay are above 99%. We have developed statements for test ordering, test acquisition form and practical recommendations for the results interpretation. The test has been successfully applied for...Continue Reading

Related Concepts

Computer Software
Study
Galactosemias
Ions
Cystic Fibrosis
TAPBP protein, human
Laboratories; Clinical Medical Laboratory
Sequencing
Massively-Parallel Sequencing
Nucleotides

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