The present invention is directed to compounds effective for increasing the water solubility of poorly soluble drugs. Hydrotropic agents are identified, such as for increasing the solubility of paclitaxel. Polymerizable monomers of the hydrotropic agents are prepared and hydrotropic polymers formed from such monomers are generated. Both the monomers and resulting polymers increase the solubility of poorly soluble drugs. In some cases, the hydrotropic polymers are more effective at increasing solubility at low concentrations relative to a corresponding amount of the hydrotropic agent precursor. Additionally, the hydrotropic polymers (hytrops) can be crosslinked to yield hydrotropic hydrogels (hytrogels) capable of solubilizing a drug. The hytrogels can further be employed to generate micro- and nano-particle suspensions of a poorly soluble drug. The water solubility of paclitaxel can be increased by four orders of magnitude using compounds of the invention. Large molecular weight compounds, such as the hytrops and hytrogels, are expected to have low levels of absorption in the gastrointestinal tract, thereby making them particularly preferred for oral delivery of poorly soluble drugs.
本发明涉及一种有效增加
水溶性的难溶性药物的化合物。识别了亲
水性剂,例如用于增加
紫杉醇的溶解度。制备了亲
水性剂的可聚合单体,并生成了由这些单体形成的亲
水性聚合物。这些单体和最终产生的聚合物都可以增加难溶性药物的溶解度。在某些情况下,亲
水性聚合物在低浓度下相对于相应量的亲
水性剂前体更有效地增加溶解度。此外,亲
水性聚合物(hytrops)可以交联以产生能够溶解药物的亲
水性
水凝胶(hytrogels)。这些hytrogels还可以用于生成难溶性药物的微米和纳米颗粒悬浮液。使用本发明的化合物,可以将
紫杉醇的
水溶性提高四个数量级。大分子量化合物,例如hytrops和hytrogels,预计在胃肠道中吸收
水平较低,因此特别适用于口服难溶性药物的给药。