The present invention relates to an ionic complex comprising a cationic polypeptide and an anionic excipient selected from: a PEG-carboxylic acid; a fatty acid having 10 or more carbon atoms; an anionic phospholipid; and a combination thereof. The invention also relates to a pharmaceutical composition comprising the ionic complex of the invention and a pharmaceutically acceptable carrier. The cationic polypeptide of the ionic complex has pharmacological activity and the complex can provide a more desirable pharmacokinetic profile for the cationic polypeptide of the complex as compared to the cationic polypeptide alone following administration. As such, the invention also relates to the use of the ionic complex and pharmaceutical composition comprising same to treat a subject suffering from a disease or disorder that is responsive to the cationic polypeptide of the ionic complex.
本发明涉及一种离子复合物,包括阳离子
多肽和阴离子辅料,所述阴离子辅料选自:P
EG-
羧酸;具有10个或更多碳原子的
脂肪酸;阴离子
磷脂;以及其组合物。该发明还涉及一种药物组合物,包括本发明的离子复合物和药学上可接受的载体。离子复合物的阳离子
多肽具有药理活性,并且与仅使用阳离子
多肽相比,复合物可以提供更理想的药代动力学特性。因此,本发明还涉及使用离子复合物和包括其的药物组合物来治疗对离子复合物的阳离子
多肽有反应的疾病或障碍的患者。