Abstract: This disclosure relates to methods of treating cancer comprising administering an effective amount of a STAT3 inhibitor, prodrugs, or derivatives thereof, in combinations with an EGFR tyrosine kinase inhibitors, prodrugs, or derivatives thereof, to a subject in need thereof. In certain embodiments, the STAT3 inhibitor is niclosamide or salt thereof. In certain embodiments, the EGFR tyrosine kinase inhibitor is erlotinib or salt thereof.