Pharmaceutical products; therapeutic drugs and agents, namely antibody-based therapies, antibodies, antibody fragments, bispecific antibodies, T-cell bispecific antibodies; pharmaceutical preparations namely antibody engineering, antibody production and purification, for the treatment of hematological malignancies, solid tumors and diseases of the immune system, namely multiple myeloma, chronic lymphocytic leukemia, acute myeloid leukemia, non-Hodgkin lymphomas, systemic lupus erythematosus