The present invention relates to an antibody-drug-conjugate or pharmaceutical composition comprising the same. From one aspect, the invention relates to an antibody-drug-conjugate (ADC) comprising an antibody consisting of the Trastuzumab or a biosimilar thereof, said antibody being conjugated to at least one drug consisting of a monomethyl auristatin F derivative. The invention also comprises method of treatment of cancer comprising administering to the subject an effective amount of said antibody-drug-conjugate or composition comprising the same.
