<qa>  What is the maximum tolerated dose of sunitinib?I. To determine the maximum tolerated dose MTD of the combination of sunitinib sunitinib malate Sutent, an oral tyrosine kinase inhibitor with antiangiogenic activity that inhibits vascular endothelial growth factor receptor 2 VEGFR2, stem cell factor receptor c-kit and platelet derived growth factor receptor PDGFR, in combination with hydroxychloroquine HCQ, an inhibitor of autophagy, in patients with advanced solid tumors that are refractory to standard chemotherapy. 