CN109316454B - 一种骨化三醇制剂 - Google Patents

一种骨化三醇制剂 Download PDF

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CN109316454B
CN109316454B CN201811412712.9A CN201811412712A CN109316454B CN 109316454 B CN109316454 B CN 109316454B CN 201811412712 A CN201811412712 A CN 201811412712A CN 109316454 B CN109316454 B CN 109316454B
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calcitriol
cyclodextrin
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陈阳生
王明刚
孙桂玉
刘晓霞
杜昌余
王清亭
刘振玉
臧云龙
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Abstract

本发明涉及一种骨化三醇新型制剂,属于药物制剂领域。本申请的骨化三醇新型制剂是一种口腔崩解片,包含骨化三醇环糊精包合物和辅料,所述辅料包含填充剂,矫味剂,崩解剂和润滑剂。本发明采用环糊精对骨化三醇进行包合,利用包合物的产品形式来提高骨化三醇应用时的稳定性,通过对不同的环糊精进行筛选,发现利用DM‑β‑环糊精对骨化三醇进行包合时所得产品的稳定性最好。

Description

一种骨化三醇制剂
技术领域
本发明涉及药物制剂领域,具体涉及一种骨化三醇制剂。
背景技术
骨化三醇(Calcitriol,1),化学名称为9,10-开环胆甾-5Z,7E,10(19)-三烯-1α,3β,25-三醇。骨化三醇是人体内维生素D3最重要的代谢活性产物之一,能促进肠道对钙的吸收,并调节骨质的钙化。骨化三醇最早由瑞士罗氏公司生产,1978年上市,商品名为“Rocaltrol”,用于治疗绝经后骨质疏松、慢性肾功能低下、术后甲状腺功能低下、特发性甲状旁腺功能低下、假性甲状腺功能低下、维生素D依赖性佝偻病、低血磷性维生素D抵抗型佝偻病等。骨化三醇在日本、新西兰、澳大利亚、意大利、英国临床用于骨质疏松已达数十年。由于骨化三醇是内源性物质,疗效确切、安全稳定,因此是骨质疏松症的首选药物。
骨化三醇生理活性很高,单次服用剂量极小,一般治疗剂量仅0.25μg/日-1.0μg/日。但是,骨化三醇稳定性弱,对光和空气十分敏感,因此研制稳定性的骨化三醇制剂是当前的难题,开发新的稳定的骨化三醇制剂具有重大意义。
发明内容
本发明的目的即是提供一种稳定性强的骨化三醇软胶囊。
本申请解决该技术问题的技术方案是一种骨化三醇制剂,其是一种口腔崩解片,包含骨化三醇环糊精包合物和辅料,所述辅料包含填充剂,矫味剂,崩解剂和润滑剂。
所述的骨化三醇环糊精包合物为骨化三醇的DM-β-环糊精包合物。
所述的骨化三醇的DM-β-环糊精包合物中骨化三醇和DM-β-环糊精包合物的重量比为1:10。
所述的骨化三醇的DM-β-环糊精包合物的制备方法为:先取骨化三醇溶于少量乙醚中,加入饱和DM-β-环糊精水溶液中,搅拌均匀,浓缩,干燥,除去乙醚,即得。
所述填充剂包含微晶纤维素、预胶化淀粉、糊精和麦芽糖糊精中的一种或多种。
所述矫味剂包含甘露醇、木糖醇和麦芽糖中的一种或多种。
所述崩解剂包含交联聚乙烯吡咯烷酮、羧甲基淀粉钠、低取代羟丙基甲基纤维素、交联羧甲基纤维素钠和交联聚维酮中的一种或多种。
所述润滑剂包含硬脂酸镁,硬脂酸钙,硬脂酸锌,单硬脂酸甘油脂和氢化植物油中的一种或多种。
所述骨化三醇口腔崩解片按重量份包含骨化三醇环糊精包合物1-5份,填充剂20-50份,矫味剂1-6份,崩解剂10-30份和润滑剂1-5份。
本发明的有益效果:
本发明采用环糊精对骨化三醇进行包合,利用包合物的产品形式来提高骨化三醇应用时的稳定性,通过对不同的环糊精进行筛选,发现利用DM-β-环糊精对骨化三醇进行包合时所得产品的稳定性最好。
具体实施方式
下面结合具体实施例,进一步阐述本发明。应理解,这些实施例仅用于说明本发明而不用于限制本发明的范围。下列实施例中未注明具体条件的实验方法,通常按照常规条件或按照制造厂商所建议的条件。除非另外说明,否则所有的百分数、比率、比例或份数按重量计。
除非另行定义,文中所使用的所有专业与科学用语与本领域技术人员所熟悉的意义相同。此外,任何与所记载内容相似或均等的方法及材料皆可应用于本发明方法中。文中所述的较佳实施方法与材料仅作示范之用。
实施例1环糊精种类的筛选
先取骨化三醇溶于少量乙醚中,过量加入配方浓度的环糊精水溶液中,搅拌均匀,加热除去乙醚,过滤,取滤液浓缩,干燥,即得。计算包封率。
包封率=溶于乙醚的骨化三醇加入量/包合后滤液中骨化三醇含量*100%,结果如表1所示。
表1不同种类环糊精对于骨化三醇的包封率
环糊精种类 环糊精浓度 包封率
β-环糊精 15% 24.32%
HP-β-环糊精 15% 36.26%
DM-β-环糊精 15% 62.12%
CM-β-环糊精 15% 39.43%
DE-β-环糊精 15% 54.52%
根据以上结果可知,利用15%浓度的DM-β-环糊精或DE-β-环糊精对骨化三醇进行包合时,包封率最高,因而选择DM-β-环糊精和DE-β-环糊精作为包合剂,对其稳定性作进一步的考察。
根据表2的配方,制备口腔崩解片。
表2骨化三醇口腔崩解片配方
Figure GDA0003015023800000031
实施例2不同环糊精包合物对骨化三醇口腔崩解片稳定性的影响
将制备例1-3制备的骨化三醇口腔崩解片进行加速试验,分别于1、2、3个月后用HPLC方法进行检测,结果如表3所示。
表3不同环糊精包合物对骨化三醇口腔崩解片稳定性的影响试验结果
Figure GDA0003015023800000032
Figure GDA0003015023800000041
根据以上结果可知,制备例2-3在进行加速试验时,在第3个月时片剂颜色发生变化,含量降低,有关物质增多,说明其稳定性受到影响,而制备例1则在3个月的加速试验期内均能保持稳定,因此选择DM-β-环糊精作为包合剂。
根据表4的配方,制备口腔崩解片。
表4骨化三醇口腔崩解片配方
Figure GDA0003015023800000042
实施例3骨化三醇口腔崩解片影响因素试验
取制备例4的骨化三醇口腔崩解片置于高温(40℃)、光照(4500±500Lx)、低温(-18℃)条件下,分别于第5、10天取样,对稳定性试验各考察指标进行检测,结果见表5。
表5骨化三醇口腔崩解片影响因素试验结果
Figure GDA0003015023800000051
Figure GDA0003015023800000052
根据以上结果可知,本申请的骨化三醇口腔崩解片影响因素试验结果符合要求。
实施例4骨化三醇口腔崩解片加速试验
取制备例4-6的骨化三醇口腔崩解片置于40℃、RH75%条件下,分别于第0、1、2、3月取样,对稳定性试验各项考察指标进行检测。结果见表6。
表6骨化三醇口腔崩解片加速试验结果
Figure GDA0003015023800000061
根据以上结果可知,本申请的骨化三醇口腔崩解片加速试验结果符合要求。
实施例5骨化三醇口腔崩解片室温长期留样试验
取制备例4-6的骨化三醇口腔崩解片置于室温条件下,分别于第0、3个月取样,对稳定性试验各项考察指标进行检测。结果见表7。
表7骨化三醇口腔崩解片室温长期留样试验结果
Figure GDA0003015023800000062
根据以上结果可知,本申请的骨化三醇口腔崩解片室温长期留样试验结果符合要求。
以上所述仅为本发明的较佳实施例而已,并非用以限定本发明的实质技术内容范围,本发明的实质技术内容是广义地定义于申请的权利要求范围中,任何他人完成的技术实体或方法,若是与申请的权利要求范围所定义的完全相同,也或是一种等效的变更,均将被视为涵盖于该权利要求范围之中。

Claims (1)

1.一种骨化三醇制剂,其特征在于,其是一种口腔崩解片,由DM-β-环糊精-骨化三醇包合物0.8%、预胶化淀粉30%、微晶纤维素5%、低取代羟丙基甲基纤维素8%、聚乙烯吡咯烷酮20%、木糖醇0.4%、硬脂酸镁0.8%和适量水组成。
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