Disclosed herein is novel double-stranded short interfering ribonucleic acid (siRNA) capable of suppressing the translation of Aurora-A mRNA. Also disclosed are use of the novel siRNA as disclosed herein for manufacturing a medicament suitable for treating a cancer, which is mediated through epidermal growth factor receptor (EGFR) signaling. Accordingly, a pharmaceutical composition comprising the disclosed novel siRNA molecules is provided; as well as a method of treating a subject suffering from EGFR-mediated cancer via administering to the subject the disclosed novel siRNA molecule.