Abstract: A PD-1/CD4 bispecific protein for preventing, suppressing the progression of symptoms of or the recurrence of or treating autoimmune diseases, hematological cancer and the like, which can reduce the induction of cytokine production or release upon administration, and thus is expected to inhibit the development of infusion reactions or cytokine release syndrome after administration.

Abstract: A PD-1/CD3 bispecific antibody or an antigen-binding fragment thereof useful for preventing, suppressing the progression of symptoms of or the recurrence of or treating autoimmune diseases is disclosed. The PD-1/CD3 bispecific antibody comprises a first arm specifically binding to PD-1 and a second arm specifically binding to CD3. The PD-1/CD3 bispecific antibody can be formulated into a formulation which can reduce the occurrence of adverse reactions called as infusion reaction or cytokine release syndrome and the bispecific antibody contributes to enhancement or duration of an effect of preventing, suppressing the progression of symptoms of or the recurrence of or treating autoimmune diseases.

Abstract: An agent for preventing, suppressing the progression of symptoms of, suppressing the recurrence of or treating autoimmune diseases, comprising a bispecific antibody or an antibody fragment thereof, having a first arm specifically binding to PD-1 and a second arm specifically binding to CD19, as described herein.

Abstract: A bispecific antibody which is capable of specifically binding to PD-1 and CD3 is disclosed. The bispecific antibody is suitable for preventing, suppressing symptom progression or recurrence of, and/or treating autoimmune diseases. Also disclosed is a formulation which can reduce occurrence of adverse infusion reactions or adverse reaction called cytokine release syndrome. The bispecific antibody has the feature to allow interaction between PD-1 and PD-L1 as its ligand, contributes enhancement or duration of its effects.

Abstract: A bispecific antibody which is capable of specifically binding to PD-1 and CD3 is disclosed. The bispecific antibody is suitable for preventing, suppressing symptom progression or recurrence of, and/or treating autoimmune diseases. Also disclosed is a formulation which can reduce occurrence of adverse infusion reactions or adverse reaction called cytokine release syndrome. The bispecific antibody has the feature to allow interaction between PD-1 and PD-L1 as its ligand, contributes enhancement or duration of its effects.

Abstract: A bispecific antibody which is capable of specifically binding to PD-1 and CD3 is disclosed. The bispecific antibody is suitable for preventing, suppressing symptom progression or recurrence of, and/or treating autoimmune diseases. Also disclosed is a formulation which can reduce occurrence of adverse infusion reactions or adverse reaction called cytokine release syndrome. The bispecific antibody has the feature to allow interaction between PD-1 and PD-L1 as its ligand, contributes enhancement or duration of its effects.

Abstract: A prophylactic, symptom progress-suppressive, recurrence-suppressive and/or therapeutic agent for autoimmune disease or graft-versus-host disease, comprising a PD-1/CD19 bispecific antibody or antibody fragment thereof having a first arm capable of specifically binding to PD-1 and a second arm capable of specifically binding to CD19, as an active ingredient. The PD-1/CD19 bispecific antibody exhibits suppressive effect on proliferation of activated B cells and suppressive effect on production of immunoglobulin, and also has an effect of suppressing production of cytokine from memory T cells.