The cobas® PIK3CA Mutation Test* is a real-time PCR test for the qualitative detection and identification of mutations in exons 1, 4, 7, 9 and 20 of the Phosphatidylinositol-3-kinase catalytic subunit alpha isoform (PI3KCA) gene in DNA derived from formalin-fixed paraffin-embedded tissue (FFPET).