CN113577024B - 一种眼用组合物及其制备方法和应用 - Google Patents
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Abstract
本发明公开了一种眼用组合物及其制备方法和应用,涉及眼用组合物。一种眼用组合物,为透明水包油乳化液剂型,乳滴平均粒径小于100nm,90%粒径不大于200nm,包括下列重量份的各组分:所述组合物总质量的0.1%‑4.0%的第一表面活性剂,述组合物总质量的0.001%‑0.1%的十六烷基二甲基苄基氯化铵(CKC),所述组合物总质量0.5%‑2%的油相,所述组合物总质量的0.001%‑0.25%的pH调节剂,所述组合物总质量的1.0%‑3%的渗透压调节剂,余量为水。本发明解决了阳离子水包油型乳剂眼用组合物的透明度问题,眼部刺激性低,提高了患者使用的依从性。
Description
技术领域
本发明涉及一种眼用组合物,具体涉及一种透明乳化液剂型眼用组合物及其制备方法和应用。
背景技术
干眼症是目前临床上最为常见的眼表疾病,是因泪膜稳定性下降和眼表环境的失衡,造成眼部不适的一类疾病,可伴有眼组织损伤等症状。调查显示,我国干眼症发病率高达21.0%~30.0%,严重者可引起视力明显下降从而影响其正常的工作和生活。因此干眼症越来越受到人们重视,亦引起眼科临床工作者的高度关注。
人工泪液是治疗干眼症的最常用药物,即用仿制的人工泪液在眼球表面形成新的泪膜,从而维持眼表健康,解除不适症状。目前,眼科临床上可供选择的人工泪液较多,如聚乙烯醇、甲基纤维素类、玻璃酸钠类、聚乙烯吡咯烷酮、聚丙烯酸等。但由于其成分主要为水性溶液,在眼表铺展后,容易迅速蒸发,泪膜瞬间破坏,因此,每日需要5-6次使用,患者依从性较差;另外,长期使用容易产生依赖性,并进一步扰乱眼表组织的功能。
为了解决水溶性人工泪液存在的上述问题,开发了以乳剂为载体的治疗干眼症的人工泪液,这类型人工泪液可提高药液黏稠性和增加其在眼表面的停留时间,使药效和作用时间得到了增强和延长。
然而以乳剂为载体的人工泪液在使用和推广时也存在一定的缺陷,如脂质纳米乳剂人工泪液,由于乳剂呈乳白色,在被使用时维持乳白而不透明的状态,将可能造成阻碍视野的问题而不利于施用于眼部。
为了解决现有技术存在的上述问题,本发明研发了一种更适合用于眼部的,透明水包油型眼用组合物,并且提高了使用的舒适度。
发明内容
本发明的目的是提供一种眼用组合物。
本发明的另一个目的是提供眼用组合物的制备方法。
本发明的再一个目的是提供眼用组合物的应用。
本发明是通过以下技术方案实现的:
一种眼用组合物,为透明水包油乳化液剂型,乳滴平均粒径小于100nm,90%粒径不大于200nm,包括下列重量份的各组分:
所述组合物总质量的0.1%-4.0%的第一表面活性剂,
所述组合物总质量的0.001%-0.1%的十六烷基二甲基苄基氯化铵(CKC),
所述组合物总质量0.5%-2%的油相,
所述组合物总质量的0.001%-0.25%的pH调节剂,
所述组合物总质量的1.0%-3%的渗透压调节剂,
余量为水。
进一步地,所述的第一表面活性剂为聚乙二醇类和/或聚氧乙烯氢化蓖麻油类,具体为:聚乙二醇400、聚乙二醇600、PEG-20氢化蓖麻油、PEG-35氢化蓖麻油、PEG-40氢化蓖麻油的任意一种或两种以任意比例的组合物,其中优选为PEG-35氢化蓖麻油和/或聚乙二醇400。
所述的油相包括轻质矿物油、和/或重质矿物油、和/或中链甘油三酯、和/或蓖麻油。
所述的pH调节剂为氨丁三醇。
所述渗透压调节剂为甘油、丙二醇、山梨醇和/或甘露醇。
上述眼用组合物的制备方法,步骤为:将乳剂油相和水相分别加热到75-85℃,在快速机械搅拌下将油相缓慢倒入水相,搅15-25分钟,高剪切均质混合至少30分钟,以使油滴尽量减小,加入pH调节剂,再经高压微射流均质工艺制备而成。
本发明公开了所述眼用组合物在制备人工泪液中的应用。
本发明还公开了所述眼用组合物作为药物载体在制备干眼症用药物中的应用。
本发明透明乳化液剂型眼用组合物使用了两种表面活性剂,其中第一表面活性剂优选PEG-35氢化蓖麻油和/或聚乙二醇400等,CKC作为第二表面活性剂,即本发明使用两种表面活性剂组合作用以替代市场上的人工泪液增稠剂聚乙烯醇、甲基纤维素类、玻璃酸钠类等,再辅以矿物油、蓖麻油等混合作为乳剂油相。其中两种表面活性剂有利于延长泪膜在干眼表面的滞留时间,避免了频繁给药的麻烦,矿物油等的使用,可在角膜表面形成脂质层,起到稳定泪膜、防止水分蒸发的作用制作时,经加热、搅拌混合后均质,制得乳滴平均粒径小于100nm,90%粒径不大于200nm的组合物,该组合物是透明、无色的,相比传统使用聚乙烯醇类及甲基纤维素类增稠剂,本发明组合物不仅能够在眼部延长泪膜在干眼表面的滞留时间,避免频繁给药的麻烦,且由于是无色透明的,亦不阻碍视野,可提供给患者更舒适的感觉。
与现有技术相比,本发明具有以下优点:
(1) 解决了阳离子水包油型乳剂眼用组合物的透明度问题;
(2) 无防腐剂,降低了眼部刺激性,提高了患者使用的依从性;
(3) 可提高适合该体系的眼用药物的溶解度,作为眼用药物的载体使用。
具体实施方式
以下结合实施例对本发明作进一步说明。
实施例1
按照表1所示组分制备组合物,分别获得组1、组2、组3、组4四种组合物。
表1
制备方法:
1) 将PEG-35氢化蓖麻油和/或PEG 400溶解在油相中;
2) 将CKC、渗透压调节剂甘油和氨丁三醇溶解在水相中;
3) 将水相和油相分别加热到适当温度75-85℃,快速机械搅拌下将油相缓慢倒入水相,继续搅拌20分钟,补注射用水至全量,过高剪切均质混合至少30分钟,使油滴尽量减小,用稀盐酸调pH值至6.2。
PEG-35氢化蓖麻油可以被PEG-20氢化蓖麻油或PEG-40氢化蓖麻油所取代,PEG400可以被PEG 200所取代,需要说明的是本发明所提供的眼用药物组合物用两种不同类型的乳化剂CKC与聚氧乙烯氢化蓖麻油和/或聚乙二醇组合,使其替代增稠剂并维持低刺激性,不含防腐剂,亦利于施用于眼部。
制备干眼症用药物时,将按照上述方法获得的组合物作为药物载体,将有效剂量的药物如环孢素加入组合物中,经高压蒸汽灭菌的条件下制备滴眼剂。
制备人工泪液时,将按照上述方法获得的组合物装载到适合的容器中,通过高压蒸汽灭菌法来灭菌,用于制得人工泪液滴眼剂。
实施例2
按照表2所示各组分制备组合物,分别获得对比组1、对比组2、对比组3、对比组4四种组合物。
表2
将实施例1的4组组合物,和实施例2的4组对比组合物,按照相同的方法制备成组合物,在低密度聚乙烯塑料小瓶包装条件下,在温度为40℃±2℃,相对湿度为20±5%的环境中放置6个月,定时抽样检查外观,其试验结果见表3所示:
表3
从表3可以看出,本发明离子剂CKC与聚氧乙烯氢化蓖麻油和/或聚乙二醇复配乳液具有优良的相容性,长期保存外观透明乳化液剂型,6个月未发生改变,兼具有稳定性好的效果。
实施例3
按照表4所示组分制备组合物,分别获得4组组合物。
表4
制备方法:
1) 将PEG-20氢化蓖麻油或PEG-40氢化蓖麻油或PEG 200溶解在油相中;
2) 将CKC、渗透压调节剂甘油和氨丁三醇溶解在水相中;
3) 将水相和油相分别加热到适当温度75-85℃,快速机械搅拌下将油相缓慢倒入水相,继续搅拌20分钟,补注射用水至全量,过高剪切均质混合至少30分钟,使油滴尽量减小,用稀盐酸调pH值至6.2。
将上述4种组合物,在低密度聚乙烯塑料小瓶包装条件下,在温度为40℃±2℃,相对湿度为20±5%的环境中放置3个月,定时抽样检查外观,其试验结果见表5所示:
表5
组分 | 0天观察 | 3个月外观 |
组5 | 透明乳液 | 透明乳液 |
组6 | 透明乳液 | 透明乳液 |
组7 | 透明乳液 | 透明乳液 |
组8 | 透明乳液 | 透明乳液 |
以上表1、表4中的组合物按常规也可以用于滴眼液药物载体。
实施例4
按照表6所示组分制备药用组合物,分别获得组9、组10两种组合物。
表6
组分 | 组9 | 组10 |
环孢素A | 0.10% | 0 |
他克莫司 | 0 | 0.10% |
中链甘油三酯 | 1.0% | 0.50% |
CKC | 0.001% | 0.05% |
PEG-35氢化蓖麻油 | 0.05% | 1.0% |
PEG 400 | 0.05% | 0 |
氨丁三醇 | 0.071% | 0.071% |
甘油 | 2.50% | 1% |
水 | 余量 | 余量 |
制备方法:
1) 将环孢素A或他克莫司、PEG-35氢化蓖麻油和/或PEG 400溶解在油相中;
2) 将CKC、渗透压调节剂甘油和氨丁三醇溶解在水相中;
3) 将水相和油相分别加热到适当温度75-85℃,快速机械搅拌下将油相缓慢倒入水相,继续搅拌20分钟,补注射用水至全量,过高剪切均质混合至少30分钟,使油滴尽量减小,用稀盐酸调pH值至6.2。
将上述2种组合物,在低密度聚乙烯塑料小瓶包装条件下,在温度为40℃±2℃,相对湿度为20±5%的环境中放置3个月,定时抽样检查外观,其试验结果见表7所示:
表7
组分 | 0天观察 | 3个月外观 |
组9 | 透明乳液 | 透明乳液 |
组10 | 透明乳液 | 透明乳液 |
以上所述的仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。
Claims (6)
1.一种眼用组合物,其特征在于,为透明水包油乳化液剂型,乳滴平均粒径小于100nm,90%粒径不大于200nm,包括下列重量份的各组分:
所述组合物总质量的0.1%-4.0%的第一表面活性剂,
所述组合物总质量的0.001%-0.1%的十六烷基二甲基苄基氯化铵,
所述组合物总质量0.5%-2%的油相,
所述组合物总质量的0.001%-0.25%的pH调节剂,
所述组合物总质量的1.0%-3%的渗透压调节剂,
余量为水;
其中所述的第一表面活性剂为聚乙二醇类和/或聚氧乙烯氢化蓖麻油类,包括聚乙二醇400、聚乙二醇600、PEG-20氢化蓖麻油、PEG-35氢化蓖麻油、PEG-40氢化蓖麻油的任意一种或两种以任意比例的组合物;
所述的油相为轻质矿物油、和/或重质矿物油、和/或中链甘油三酯、和/或蓖麻油;所述的pH调节剂为氨丁三醇;
所述的渗透压调节剂为甘油、丙二醇、山梨醇和/或甘露醇。
2.根据权利要求1所述的一种眼用组合物,其特征在于,所述第一表面活性剂为聚乙二醇400和/或PEG-35氢化蓖麻油。
3.权利要求1或2所述眼用组合物的制备方法,步骤为:将乳剂油相和水相分别加热到75-85℃,在快速机械搅拌下将油相缓慢倒入水相,继续搅拌15-25分钟,高剪切均质混合至少30分钟,以使油滴尽量减小,加入pH调节剂,再经高压微射流均质工艺制备而成。
4.权利要求1或2所述眼用组合物作为药物载体在制备干眼症用药物中的应用。
5.权利要求1或2所述眼用组合物在制备人工泪液中的应用。
6.依照权利要求3所述方法制备的眼用组合物在制备人工泪液中的应用。
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