Real-time polymerase chain reaction (PCR) is a frequently used technique in molecular diagnostics. To date, practical guidelines for the complete process of optimization and validation of commercial and in-house developed molecular diagnostic methods are scare. Therefore, we propose a practical guiding principle for the optimization and validation of real-time PCR assays. Based on literature, existing guidelines, and personal experience, we created a checklist that can be used in different steps of the development and validation process of commercial and in-house developed real-time PCR assays. Furthermore, determination of target values and reproducibility of internal quality controls are included, which allows a statistical follow-up of the performance of the assay. Recently, we used this checklist for the development of various qualitative and quantitative assays for microbiological and hematological applications, for which accreditation according to ISO 15189:2007 was obtained. In our experience, the use of the proposed guidelines leads to a more efficient and standardized optimization and validation. Ultimately, this results in reliable and robust molecular diagnostics. The proposed checklist is independent of environment, equipment, and specific applications and can be used in other laboratories. A worldwide consensus on this kind of checklist should be aimed at.
Pan-myeloid targeted NGS fits elegantly in the routine diagnostic approach of MNs allowing for an improved diagnosis, subclassification, and prognosis.
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