CN112716893A - 一种聚戊内酯-普朗尼克f127-聚戊内酯的酮康唑载药胶束及其制备 - Google Patents

一种聚戊内酯-普朗尼克f127-聚戊内酯的酮康唑载药胶束及其制备 Download PDF

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CN112716893A
CN112716893A CN202011505661.1A CN202011505661A CN112716893A CN 112716893 A CN112716893 A CN 112716893A CN 202011505661 A CN202011505661 A CN 202011505661A CN 112716893 A CN112716893 A CN 112716893A
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朱力
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Abstract

本发明主要保护的是一种聚戊内酯‑普朗尼克F127‑聚戊内酯聚合物与酮康唑所组成的载药胶束及其制备工艺。其制造过程为:一种聚戊内酯‑普朗尼克F127‑聚戊内酯聚合物为载体材料,与一定比例的酮康唑相混合,溶于有机溶剂当中,通过薄膜‑水化法制备酮康唑载药胶束。

Description

一种聚戊内酯-普朗尼克F127-聚戊内酯的酮康唑载药胶束及 其制备
技术领域
本发明涉及一种载体胶束为聚戊内酯-普朗尼克F127-聚戊内酯的酮康唑载药胶束及其制备方法。
背景技术
酮康唑(结构如下)作为一种咪唑类广谱抗真菌药,临床上主要用于治疗真菌或酵母菌所致的皮肤、毛发和指甲感染,着色真菌病,白色念珠菌病复发及免疫力低下所致的霉菌感染等。但其几乎不溶解于水,结构中具有醚基和酰胺基,在空气中易氧化变色而影响稳定性和疗效。另外,酮康唑可引起血清氨基转移酶(AST、ALT)升高,属可逆性。偶有发生严重肝毒性者,主要为肝细胞型,发生率约为0.01%,临床表现为黄疸、尿色深、粪色白、异常乏力等,通常停药后可恢复,但也有死亡病例。
Figure RE-GDA0002993205900000011
除了严重的毒副作用外,酮康唑还存在水溶性低、药代动力学性质差等弊端。因此,国内外研究者开发了多种制剂,以期解决上述问题。酮康唑的传统制剂可提高酮康唑水溶性,但其肝脏毒性并未改善,因而在近几年被国家强制撤市。近半数由组合化学和高通量筛选所获得的新药或化合物因溶解度低,无法达到治疗所需浓度而在新药研发阶段被淘汰。因此,急需开发出一种价格相对低廉、溶解度有所改善、生物利用度提高的新型酮康唑载药制剂。
泊兰尼克F127两亲性聚合物可在水中自组装形成具有核-壳结构的胶束:内核为亲脂质链段,与亲脂性药物发生分子间相互作用,实现药物在内核的包载;外壳为亲水性链段,与水发生水合作用,从而提高药物的水溶性。同时,覆盖于胶束表面的泊兰尼克F127可减少胶束与体内血浆蛋白等相互作用,降低巨噬系统的吞噬,从而改善药物的生物利用度或药代动力学性质。
聚(δ-戊内酯)(聚戊内酯,PVL)具有良好的生物降解性、生物相容性和渗透性等特点,可用作两亲性嵌段聚合物中的疏水性嵌段,适用于构建疏水性抗药物的胶束递送系统。聚戊内酯与普朗尼克F127相连,可形成两亲性聚合物。该聚合物可自组装成胶束:普朗尼克F127中的环氧乙烷链段处于胶束近表面,聚戊内酯及普朗尼克F127的环氧丙烷链段具有较为优良的生物相容性;酮康唑当中的咪唑环、芳香环、酰胺基等官能团,可与胶束中的亲酯链段产生氢键等相互作用,从而实现酮康唑的包载,改善其水溶性、降低肝毒性的产生等。
发明内容
本发明要解决的技术问题是提供一种酮康唑载药胶束的制备工艺及配方,以提高酮康唑的溶解性,改善酮康唑的生物利用度。所制得的制剂能作为静脉给药或口服给药的剂型。
本发明所涉及的酮康唑载药胶束为缓释载药胶束。水溶性聚戊内酯-普朗尼克F127-聚戊内酯聚合物与酮康唑的重量比为:酮康唑1份,一种聚戊内酯-普朗尼克F127-聚戊内酯聚合物 8~20份。
酮康唑载药胶束制备方法如下:将配方量的聚戊内酯-普朗尼克F127-聚戊内酯聚合物与酮康唑溶于有机溶剂中,超声助溶,室温条件下通过薄膜-水化法制备载药胶束,微孔滤膜过滤除去未包载的酮康唑,最终得到胶束溶液。
本发明中涉及的一种聚戊内酯-普朗尼克F127-聚戊内酯聚合物结构如下:
Figure RE-GDA0002993205900000021
一种聚戊内酯-普朗尼克F127-聚戊内酯聚合物中所选的普朗尼克F127分子量为13000,普朗尼克F127与聚戊内酯的质量比为13∶2,所选聚戊内酯的分子量为500~1000。
上述方法中所选有机溶剂为甲醇。
具体实施方式:
一种聚戊内酯-普朗尼克F127-聚戊内酯聚合物结构如下:
Figure RE-GDA0002993205900000022
本发明的酮康唑胶束为一种胶体给药体系,其特征在于是由酮康唑与一种聚戊内酯-普朗尼克F127-聚戊内酯聚合物共同组成的,不含有其他助剂。
一种聚戊内酯-普朗尼克F127-聚戊内酯聚合物与酮康唑的重量比为:酮康唑1份,一种聚戊内酯-普朗尼克F127-聚戊内酯聚合物8~20份。
一种聚戊内酯-普朗尼克F127-聚戊内酯聚合物中所选普朗尼克F127分子量为13000,聚戊内酯的分子量为500~1000,普朗尼克F127与聚戊内酯的质量比为13∶2。
实施例1
将一种聚戊内酯-普朗尼克F127-聚戊内酯聚合物(200mg)与酮康唑(10mg)溶于甲醇中,超声助溶,室温条件下利用薄膜-水化法制备载药胶束。微孔滤膜过滤除去未包载的酮康唑,得到最终的胶束溶液,包封率为74.57%,载药量为3.49%。
实施例2
将一种聚戊内酯-普朗尼克F127-聚戊内酯聚合物(100mg)与酮康唑(10mg)溶于甲醇中,超声助溶,室温条件下利用薄膜-水化法制备载药胶束。微孔滤膜过滤除去未包载的酮康唑,得到最终的胶束溶液,包封率为71.03%,载药量为6.68%。
实施例3
将一种聚戊内酯-普朗尼克F127-聚戊内酯聚合物(80mg)与酮康唑(10mg)溶于甲醇中,超声助溶,室温条件下利用薄膜-水化法制备载药胶束。微孔滤膜过滤除去未包载的酮康唑,得到最终的胶束溶液,包封率为79.01%,载药量为8.99%。

Claims (6)

1.一种酮康唑载药胶束,其特征在于:一种聚戊内酯-普朗尼克F127-聚戊内酯聚合物与酮康唑所组成的载药胶束,其重量比为:酮康唑1份,一种聚戊内酯-普朗尼克F127-聚戊内酯聚合物8~20份;其制备方法:将配方量的聚合物和酮康唑溶于有机溶剂当中,超声助溶,室温条件下薄膜-水化法制备酮康唑载药胶束;微孔滤膜过滤除去未包载的酮康唑,得到胶束溶液。
2.权利要求1所述的酮康唑载药胶束,其所涉及的一种聚戊内酯-普朗尼克F127-聚戊内酯聚合物与酮康唑所组成的载药胶束结构如下:
Figure FDA0002844883030000011
3.权利要求2中所述的酮康唑载药胶束,其所对应的一种聚戊内酯-普朗尼克F127-聚戊内酯聚合物的特征在于:普朗尼克F127与聚戊内酯的质量比为13∶2。
4.权利要求2中所述的酮康唑载药胶束,其所对应的一种聚戊内酯-普朗尼克F127-聚戊内酯聚合物特征在于:所选的普朗尼克F127分子量为13000。
5.权利要求2中所述的酮康唑载药胶束,其所对应的一种聚戊内酯-普朗尼克F127-聚戊内酯聚合物的特征在于:所选的聚戊内酯的分子量为500~1000。
6.权利要求1中所述酮康唑载药胶束,其制备方法中所述有机溶剂为甲醇。
CN202011505661.1A 2020-12-18 2020-12-18 一种聚戊内酯-普朗尼克f127-聚戊内酯的酮康唑载药胶束及其制备 Pending CN112716893A (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102731791A (zh) * 2011-04-13 2012-10-17 北京大学 温度敏感型嵌段共聚物及其水凝胶和其用途
US20150031827A1 (en) * 2012-10-11 2015-01-29 Richo Company, Ltd. Polymer, clathrate using the polymer, and aqueous dispersion of sheet of the polymer
CN105250219A (zh) * 2015-11-12 2016-01-20 济南大学 一种酮康唑载药胶束及其制备方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102731791A (zh) * 2011-04-13 2012-10-17 北京大学 温度敏感型嵌段共聚物及其水凝胶和其用途
US20150031827A1 (en) * 2012-10-11 2015-01-29 Richo Company, Ltd. Polymer, clathrate using the polymer, and aqueous dispersion of sheet of the polymer
CN105250219A (zh) * 2015-11-12 2016-01-20 济南大学 一种酮康唑载药胶束及其制备方法

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