Abstract: The present invention discloses an isolated trifunctional bispecific antibody for use in a method of treating a patient suffering from a disease and/or a disorder associated with reactivation of Epstein-Barr vims (EBV) in at least B cells and potentially also other susceptible cells such as susceptible epithelial cells, comprising: providing an autologous cell preparation of enriched B cells of said patient; incubating said enriched B cells with the trifunctional bispecific antibody for a time-period sufficient to establish a physical interaction between said trifunctional bispecific antibody and said enriched B cells to obtain an incubation mixture; transferring said incubation mixture obtained after incubation into the same patient, wherein said trifunctional bispecific antibody comprises: (a) a first binding arm which binds to a B cell via a B cell surface antigen; (b) a second binding arm which binds to a T cell via a T cell surface antigen; (c) an Fc-portion which binds to an Fc receptor-positive cell.

Abstract: The present invention refers to a pharmaceutical composition containing trifunctional bispecific and/or trispecific antibodies being capable of binding to a specific target antigen(s) for use in a method of immunizing mammals against diseases in which said target antigen(s) is (are) involved, and further to a pharmaceutical composition containing trifunctional bispecific and/or trispecific antibodies being capable of binding to (a) specific target antigen (s) which is (are) involved in a disease of a mammal, specifically a human.

Abstract: The present invention refers to a pharmaceutical composition containing trifunctional bispecific and/or trispecific antibodies being capable of binding to a specific target antigen(s) for use in a method of immunizing mammals against diseases in which said target antigen(s) is (are) involved, and further to a pharmaceutical composition containing trifunctional bispecific and/or trispecific antibodies being capable of binding to (a) specific target antigen (s) which is (are) involved in a disease of a mammal, specifically a human.