In the present disclosure, polymer conjugates, including polymer-antibody-drug conjugates (polymer ADCs) are described, as well as the use of such conjugates to treat human disease. The polymer conjugates can contain a large number of polymer-bound agents, thus effectively increasing the drug antibody ration (DAR) of the antibody significantly beyond the currently available technology. This may be of particular importance when antibodies to low density antigens are used as target antibodies. The described polymer-ADCs have improved pharmacokinetics and solubility relative to traditional ADCs. The linker between agent and the polymer can be tailored to provide release of toxin at the desired site and under the desired conditions within the tumor. An additional feature of the polymer-ADCs of the current disclosure is that a purification moiety can be attached to the polymer backbone to provide ease of purification of the polymer-ADCs.
本公开描述了聚合物偶联物,包括聚合物-
抗体-药物偶联物(聚合物ADCs),以及使用这些偶联物治疗人类疾病。该聚合物偶联物可以含有大量的聚合物结合剂,从而有效提高
抗体的药物
抗体比率(
DAR),显著超过目前现有技术。当使用针对低密度抗原的
抗体作为靶点
抗体时,这一点可能尤为重要。与传统的ADC相比,所述聚合物ADC具有改善的药代动力学和溶解性。毒素与聚合物之间的连接器可以根据需要在肿瘤内特定部位和特定条件下释放毒素进行定制。当前公开的聚合物ADC的另一个特点是,可以在聚合物主链上附着一个纯化部分,以提供聚合物ADC的纯化便利。