Patent 11273155 was granted and assigned to Daiichi Sankyo on March, 2022 by the United States Patent and Trademark Office.
A pharmaceutical composition and a therapeutic method wherein an antibody-drug conjugate and an immune checkpoint inhibitor are administered in combination, and the antibody-drug conjugate is an antibody-drug conjugate in which a drug-linker represented by the following formula (wherein A represents the connecting position to an antibody) is conjugated to the antibody via a thioether bond; and a pharmaceutical composition and a therapeutic method for use in treatment of a disease that can be ameliorated through an antitumor immunity-activating effect wherein the antibody-drug conjugate is included.