| abstract |
To provide a preparation containing an immunoconjugate comprising an anti-GCC antibody molecule and a therapeutic agent and having excellent stability and useful as a preventive or therapeutic agent for gastrointestinal cancer and the like. (I) an immunoconjugate of the following formula (I): (Where Ab is an anti-GCC antibody molecule; X is a linker component, Z is a therapeutic agent, m is an integer of 1-15. ) Or a pharmaceutically acceptable salt thereof, A preparation comprising (ii) polysorbate 20, and (iii) histidine or a salt thereof. [Selection figure] None |