The present invention concerns combinations of two or more agents for inducing an immune response to cancer or infectious disease. Agents may include leukocyte redirecting complexes, antibody-drug conjugates, interferons (preferably interferon-α), and/or checkpoint inhibitor antibodies. The leukocyte redirecting complexes have at least one binding site for a leukocyte antigen and at least one binding site for an antigen on a diseased cell or pathogen. Preferably, the complex is a DNL™ complex. More preferably, the complex comprises a bispecific antibody (bsAb). Most preferably, the bsAb is an anti-CD3× anti-CD19 bispecific antibody, although antibodies against other leukocyte antigens and/or disease-associated antigens may be used. The complex is capable of targeting effector T cells, NK cells, monocytes or neutrophils to induce leukocyte-mediated cytotoxicity of cells associated with cancer or infectious disease. The cytotoxic immune response is enhanced by co-administration of interferon, checkpoint inhibitor antibody and/or ADC.
本发明涉及两种或两种以上诱导癌症或传染病免疫反应的制剂组合。制剂可包括白细胞重定向复合物、
抗体-药物共轭物、干扰素(最好是干扰素-α)和/或检查点
抑制剂抗体。白细胞重定向复合物至少有一个与白细胞抗原结合的位点,至少有一个与病变细胞或病原体上抗原结合的位点。最好,复合物是 DNL™ 复合物。更优选的是,复合物包括双特异性
抗体(bsAb)。最优选的是,双特异性
抗体是抗 CD3× 抗 CD19 双特异性
抗体,当然也可以使用抗其他白细胞抗原和/或疾病相关抗原的
抗体。该复合物能够靶向效应 T 细胞、NK 细胞、单核细胞或中性粒细胞,诱导白细胞介导的与癌症或传染性疾病相关的细胞毒性。联合使用干扰素、检查点
抑制剂抗体和/或 ADC 可增强细胞毒性免疫反应。