RET and medullary thyroid gland carcinoma: A total of six drugs, which have been approved by the FDA since 2011 for thyroid cancer treatment, are antiangiogenic multi-kinase inhibitors, including vandetanib, cabozantinib and lenvatinib or mutation-specific inhibitors, including dabrafenib for BRAF-mutated anaplastic thyroid cancer (ATC), larotrectinib for NTRK-fusion thyroid cancer and selpercatinib for RET-mutant medullary thyroid cancer (MTC).