Savolitinib is a highly selective MET tyrosine kinase inhibitor. MET is involved in numerous cellular processes such as proliferation, differentiation and the formation of distant metastases. MET amplification and MET overexpression are quite common in many cancers, but MET exon 14 skipping alteration is most common in non-small cell lung cancer (NSCLC). The role of MET signaling as a bypass pathway in the development of acquired resistance to tyrosine kinase inhibitor (TKI) epidermal growth factor receptor (EGFR) therapy in cancer patients with EGFR gene mutation was documented. Potential beneficiaries of savolitinib therapy are patients with NSCLC and initial diagnosis of MET ex 14 skipping mutation. Savolitinib therapy can be effective in NSCLC patients with EGFR-mutant MET with progression during first-line treatment with an EGFR-TKI. Antitumor activity of savolitinib in combination with osimertinib is very promising as first-line therapy of patients with advanced EGFR-mutated NSCLC, initially with MET expression. The safety profile of savolitinib as monotherapy and in combination with osimertinib or gefitinib is so favorable in all available studies that this drug has become a very promising therapeutic option and is being intensively investigated in ongoing clinical trials.
Keywords: AZD-6094; Exon 14 skipping alterations; MET tyrosine kinase inhibitors; Non-small cell lung cancer; Savolitinib.
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