The APIS ESR1 Mutations Kit is an advanced qPCR assay for the detection of mutations within the estrogen receptor gene. The ESR1 Mutations Kit is described by the company as a qualitative test, detecting eleven ESR1 mutations across three exons. The kit includes mutation-specific probes to enable highly sensitive detection of the target mutations. Additionally, it utilizes PCR clamp and blocker technology, which ensures specific amplification of the mutant sequence, even in the presence of a high wild-type background. APIS Assay Technologies and Biocartis Group recently expanded their partnership to include the commercialization of the mutation kit through Biocartis’ worldwide commercial network.