This invention provides a pharmaceutical composition for use in a method of preventing
antibody-mediated rejection (ABMR) in subjects who have undergone
solid organ transplantation by preventing
complement activity. [Solution] A pharmaceutical composition comprising an anti-human
interleukin-6 (IL-6)
antibody or an anti-human IL-6
antibody fragment for use in a method of preventing, stabilizing, or reducing
complement activity in a subject who is scheduled to receive, has received, or has received a
solid organ transplant, wherein the method comprises administering to a subject a prophylactic or therapeutically effective amount of the antibody or antibody fragment, the pharmaceutical composition comprising a variable light chain polypeptide containing a CDR of a specific sequence, and a variable
heavy chain polypeptide containing a CDR of a specific sequence.