[A novel quantitative JAK2V617F detection kit: prospective clinical performance study comparing MPN patients and healthy subjects].
2018
: The JAK2V617F mutation is the commonest major genetic mutation of myeloproliferative neoplasms (MPNs) and has been defined in the WHO diagnostic criteria for MPNs. However, there is still no approved in vitro diagnostic test kit available in Japan. We evaluated a JAK2V617F allele quantification kit (test method) in a prospective, multicenter clinical performance study involving patients with MPNs who were diagnosed with polycythemia vera, essential thrombocythemia, and primary myelofibrosis; healthy volunteers were also included in the analysis. Good correlation was observed between the allele burden determined using the test method vs. that determined using next-generation sequencing (NGS) in the patient group (r=0.998, y=1.071x-0.069; n=156). Furthermore, all allele burdens in the healthy group (n=54) were below the lower limit of the measurement range of the test method (0.042%). Our results confirmed that the test method could quantitatively measure the JAK2V617F allele burden in patients with MPN. Thus, the novel JAK2V617F allele quantification kit can be considered useful for the diagnosis of MPNs.
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