Provided are multifunctional antibodies, and/or antigen-binding fragments, that bind to, and inhibit the activity of, both human epidermal growth factor receptor (EGFR) and MET, and that are effective in treating cancers and other diseases, disorders, or conditions where pathogenesis is mediated by EGFR and MET.本發明提供多功能抗體及/或抗原結合片段,其等可結合至人類表皮生長因子受體(epidermal growth factor receptor;EGFR)及MET,並抑制EGFR及MET之活性,且可效治療癌症及發病機制由EGFR及MET介導之其他疾病、病症或病狀。