Trial of Cabozantinib Plus Atezolizumab in Advanced and Progressive Neoplasms of the Endocrine System. The CABATEN Study
CABATEN is a multicohort phase II study of cabozantinib plus atezolizumab in advanced and progressive tumors from endocrine system. The primary objective is to assess the efficacy of cabozantinib plus atezolizumab combination by means of radiological objective response rate (ORR) evaluated following RECIST v1.1 criteria in advanced endocrine tumors. Endocrine tumors from different origins (thyroid, lung, pancreas and digestive tract, adrenal gland and paraganglia) are characterized by being remarkably vascular and expressing several growth factors including vascular endothelial growth factor (VEGF), platelet-derived growth factor (PDGF), insulin-like growth factor 1 (IGF-1), basic fibroblast growth factor (BFGF), and transforming growth factor (TGF)-? and -?. The (over) expression of some of these factors has been linked to poor prognosis. Cabozaninib, a VEGF inhibitor, in combination with atezolizumab, an inhibitor of PD-L1, may be active in endocrine tumors by overcoming the resistance to prior antiangiogenic drugs. The trial will include patients with advanced and refractory tumors of endocrine system and patients would be allocated to six different cohorts according to the following tumor types.
Start: October 2020