A drug conjugate is provided herein. The conjugate comprises a protein based recognition-molecule (PBRM) and a polymeric carrier comprising poly(1-hydroxymethylethylene hydroxymethyl-formal) (PHF) substituted with one or more -LD-D, the protein based recognition-molecule being connected to the polymeric carrier by Lp. Each occurrence of D is independently a therapeutic agent having a molecular weight ≤ 5 kDa, LD and Lp are linkers connecting the therapeutic agent and PBRM to the polymeric carrier respectively. Also disclosed are polymeric scaffolds comprising PHF useful for conjugating with a PBRM to form a polymer-drug-PBRM conjugate described herein, compositions comprising the conjugates, methods of their preparation, and methods of treating various disorders with the conjugates of their compositions.
                            本文提供了一种药物共轭物。该共轭物包括基于蛋白质的识别分子(PBRM)和聚合物载体,聚合物载体包括被一个或多个-LD-D 取代的聚(1-羟甲基亚乙基羟甲基-
甲醛)(PHF),基于蛋白质的识别分子通过 Lp 连接到聚合物载体上。每次出现的 D 都是分子量≤ 5 kDa 的独立治疗剂,LD 和 Lp 分别是连接治疗剂和 PBRM 与聚合物载体的连接体。还公开了包含PHF的聚合物支架,PHF可与PBRM共轭形成本文所述的聚合物-药物-PBRM共轭物,包含共轭物的组合物,其制备方法,以及用其组合物的共轭物治疗各种疾病的方法。