The Plasma-SeqSensei™ (PSS) NSCLC RUO (research use only) Kit detects mutations in circulating tumour DNA (ctDNA) from plasma in patients with non-small cell lung cancer. The kit uses next generation sequencing for the detection and identification of mutations in BRAF, EGFR, KRAS, and PIK3CA genes in human cfDNA isolated from blood plasma which play a significant role in the development of NSCLC and are relevant biomarkers for prognosis, choice of therapy as well as monitoring of recurrence and therapy response.