CN108210929A - 一种含有依托考昔的药物组合物及其制备方法 - Google Patents
一种含有依托考昔的药物组合物及其制备方法 Download PDFInfo
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- CN108210929A CN108210929A CN201611187707.3A CN201611187707A CN108210929A CN 108210929 A CN108210929 A CN 108210929A CN 201611187707 A CN201611187707 A CN 201611187707A CN 108210929 A CN108210929 A CN 108210929A
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- Prior art keywords
- etoricoxib
- aluminium
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- patch
- acid
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- DNTGGZPQPQTDQF-XBXARRHUSA-N crotamiton Chemical compound C/C=C/C(=O)N(CC)C1=CC=CC=C1C DNTGGZPQPQTDQF-XBXARRHUSA-N 0.000 claims abstract description 19
- 229960003338 crotamiton Drugs 0.000 claims abstract description 19
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- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 12
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 12
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Abstract
本发明公开了一种含有依托考昔的药物组合物。组合物中以克罗米通为溶剂,制备了一种含有依托考昔的长效皮肤外用制剂,该制剂稳定性高,能够持续、平稳释放药物,有效降低了口服依托考昔制剂后,血药浓度过高而导致的心血管疾病的发生率。
Description
技术领域
本发明是医药制剂领域,涉及一种含有依托考昔药用组合物及其制备方法,尤其涉及一种含有依托考昔的皮肤外用制剂及其制备方法。
背景技术
依托考昔化学名为5-氯-2-(6-甲基吡啶-3-基)-3-(4-甲基磺酰苯基)吡啶,是一种高选择性的环氧化酶-2(COX-2)抑制剂,通过抑制COX、减少前列腺素(PG)和血栓素生成而发挥解热镇痛抗炎作用,可用于类风湿性关节炎、OA、慢性腰背疼痛、术后牙痛等,具有缓解疼痛和抗炎效果,与第一代COX-2抑制剂相比,其选择性更强、疗效更高、对胃肠道的副作用更小,是唯一证实的治疗急性痛风性关节炎有效的昔布类药物。
依托考昔于2002年在欧洲上市,其剂型为口服片剂,规格为30mg、60mg、90mg和120mg,依托考昔的心血管安全性研究MEDAL试验证明,依托考昔60和90mg与双氯酚酸150mg相比,血栓性心血管事件发生率无显著性差异,依托考昔组临床确诊的胃穿孔、溃疡、出血累计发生率低于双氯芬酸组(P<0.10),胃肠道不良事件发生率比双氯芬酸钠降低50%,综上,依托考昔胃肠道反应低,当用于缺血性心脏病和卒中患者,有心脏病危险因素的患者使用时需谨慎(《依托考昔研究进展》,医药导报2010年2月第29卷第2期)。由以上报道可知,口服依托考昔后,心血管疾病风险并未有显著降低,因此如何降低依托考昔的心血管疾病风险成为研究人员的又一研究方向。
专利CN201410213170.8公开了含有依托考昔的凝胶制剂,是一种半固体状凝胶,该发明以氨丁三醇为溶剂,从而解决依托考昔在水中溶解性不佳的问题,同时在制剂中加入了卡波姆、pH调节剂及其他助溶剂,经研究发现该制剂存在以下不足:首先,该凝胶剂中药物易流失,从而导致药物的药效降低,稳定性下降;其次,该凝胶剂大量使用有机溶剂,对皮肤有较强的刺激性,易造成皮肤过敏;最后,该凝胶剂为半固体状态,具有一定的流动性,易污染衣物,使用不方便,同时凝胶剂长时间放置,药物易析出,膏体变硬,导致其无法有效使用。
发明内容
针对现有依托考昔制剂的不足,本发明人员经过大量研究,开发了一种含有依托考昔的新剂型,该制剂为长效水性凝胶贴剂,该贴剂能够持续、稳定的释放药物,有效降低了因血药浓度过高而导致的心血管疾病的发生率,同时本发明所制备的贴剂药物组分更稳定、对皮肤无刺激,使用更方便。
通常情况下,在制备一种特定化合物的外用制剂时,为避免有效成分的结晶和沉淀,需要加入一种溶剂,因此最佳溶剂的选择是制定设计的一个重要组成部分,根据所选择的溶剂类型,有时可能由于药物溶解得不充分,而引起有效成分的释放减少或转移至作用部位减少,从而不能产生足够的治疗作用,即对特定的一种有效成分其最佳溶剂对其他成分未必也是最佳的。本发明人员,在开发研究中意外的发现,当使用克罗米通作为溶剂时,可有效防止依托考昔晶体的沉淀析出,从而使得依托考昔外用制剂具有较高的稳定性。克罗米通时一种药物活性成分,常用于治疗皮肤瘙痒等症状,本发明在依托考昔外用制剂中混合克罗米通作为溶剂,意外发现克罗米通能有效防止依托考昔析出晶体,其结果是所制得的制剂有效成分分布均匀,该制剂能够使依托考昔的经皮吸收速率和吸收量有巨大提高,实现依托考昔的连续供给,从而使足够浓度的依托考昔能够持续地维持在用药部位皮肤中。
凝胶贴剂的粘附性一直是困扰凝胶贴剂应用的一大难题,为解决该问题,通常会采用增加粘附力的辅料及辅料用量,由于凝胶贴剂是由十几种功能性辅料组成,对于该剂型的成型性、稳定性造成损害,例如当该辅料选择不当时,易造成膏体凝结过快或过慢,当膏体凝结过快时,会造成涂布不均匀,粘力不能满足需求,易形成药物析晶沉淀,膏体交联过慢时,贴剂的成型性较差,同时也会增加分析方法的确立难度,因此采用少量辅料达到增强凝胶贴剂的粘附力,同时又兼顾凝胶贴剂的成型性、稳定性是制备凝胶贴剂的又一难题。本发明在经过深入研究后发现,联合使用交联剂及交联调节剂,能有效改善和提高该凝胶贴剂的粘附性、膏体延展性、药物稳定性及成型性等。基于以上发现,本发明人开发了一种稳定性高、粘附性好、无刺激、可持续稳定释放的依托考昔皮肤外用凝胶贴剂,发明内容如下:
一种含有依托考昔的药用组合物,该组合物中至少含有药物活性成分、交联剂、交联调节剂,其中药物活性成分为环氧化酶-2(COX-2)抑制剂。
本发明所述的组合物中至少还有克罗米通。
本发明所述的组合物中药物活性成分的用量为0.1%-10%,克罗米通的用量为0.7%-5%,交联剂的用量为0.1%-1%,交联调节剂的用量为0.1%-2%。
该组合物中的药物活性成分环氧化酶-2(COX-2)抑制剂可以是罗非昔布、塞来昔布、双氯芬酸、美洛昔康、吲哚美辛、吡罗昔康或者依托考昔。
本发明所述的组合物中的药物活性成分环氧化酶-2(COX-2)抑制剂依托考昔。
本发明组合物中交联剂为高价金属盐,例如铝盐、钙盐,其中优选铝盐,例如氯化铝、甘羟铝、氢氧化铝、柠檬酸铝、合成硅酸铝、氨基乙酸二羟铝、谷氨酸铝等,可以选自一种或者其中的几种。
本发明组合物中还含有交联调节剂,可以选自酒石酸、乳酸、柠檬酸、苹果酸、依地酸(EDTA)、葡萄糖酸或其盐中的一种或几种,其中所述盐可以是钾盐、钠盐、钙盐,如依地酸二钠,交联调节剂能有效调节交联剂的性能,进一步保证贴剂粘附性及稳定性,其中交联调节剂与交联剂的用量比为1.25:1—2:1。
本发明所述的组合物中还含有纯化水,其含量为30%-70%。
本发明所述的组合物中还含有亲水性聚合物材料,其中亲水性高分子材料可以选自纤维素及其衍生物、合成高分子材料或其他源于生物的亲水性胶体、多糖、多肽或其亲水性衍生物,例如羧甲基纤维素、羧甲基纤维素盐、甲基纤维素、乙基纤维素、羟乙基纤维素、羟丙基纤维素、羟丙甲纤维素、聚乙烯醇、聚丙烯酸、聚丙烯酸盐或酯、聚丙烯酸-聚丙烯酸钠共聚物(如NP-700、NP-600、NP-800),卡波姆、聚乙烯吡咯烷酮、海藻酸盐、明胶、阿拉伯胶、壳聚糖等所述亲水性高分子材料可以是上述物质中的一种或几种,其中所述盐为钾盐、钠盐、钙盐等,所述的亲水性高分子材料用量为5.0%-20.0%。
本发明组合物中还可以含有透皮吸收促进剂、保湿剂、增塑剂、表面活性剂、填充剂等药学上可接受的赋形剂,其用量如下:
透皮吸收促进剂0.5%--8%;
保湿剂5.0%-30%;
表面活性剂0.02%-2%;
增塑剂 0.1%-10%;
填充剂 1%-20%。
所用的透皮吸收促进剂可选自薄荷醇、氮酮、氮甲基吡咯烷酮、丙二醇、二甲基亚砜、聚乙烯醇、软磷脂、磷脂酰甘油、油酸、油醇、肉豆蔻酸异丙酯、月桂醇、二乙二醇单乙基醚、葵二酸二乙酯、2-辛基-十二烷醇、己二酸二异丙酯、辛基十二烷醇中的一种或几种。
所述保湿剂可选自甘油、聚乙二醇(如PEG400)、木糖醇或者山梨醇,表面活性剂可以是离子型或非离子型表面活性剂,可以是选自司盘、吐温、氢化蓖麻油、泊洛沙姆、十二烷基硫酸钠山梨醇脂肪酸酯、单硬脂酸甘油酯其中的一种或几种。
增塑剂可选自茴香油、聚丁烯、液体石蜡或者肉豆蔻酸异丙酯,填充剂可以选自微粉硅胶、二氧化钛、高岭土、白陶土、碳酸钙、氧化锌中的一种或几种。
本发明所述的组合物中还可以含有抗氧化剂、防腐剂等,抗氧化剂可选自二丁基羟基甲苯、抗坏血酸、生育酚、生育酚酯衍生物或者丁基羟基茴香醚,防腐剂可选自尼泊金酯类(尼泊金丁酯、尼泊金甲酯)、苯甲酸、对羟基苯甲酸乙酯或者苯扎氯铵。
说明书附图
图1为实施例1-3所制备的贴剂药代动力学试验效果图。
具体实施例
以下结合具体实施例来进一步解释本发明,但实施例并不对发明做任何形式的限定。
实施例1
制备方法:
1)将酒石酸加入纯水中,得到组分A;
2)将依托考昔溶解在丙二醇和克罗米通的容液中,混合,搅拌均匀,的组分B;
3)称取NP-700、卡波姆、羧甲基纤维素钠、氢氧化铝、吐温80至练合锅中,加入甘油,分散均匀。继续加入组分B、薄荷醇、及液体石蜡,使其充分练合,分散均匀,再加入组分A,约40℃保温,混合,搅拌均匀,制成膏;
4)将膏均匀涂布、切片、包装、制得贴剂。
实施例2
制备方法:
1)将明胶加入纯化水中,溶解后加入酒石酸,搅拌均匀,得组分A;
2)将依托考昔溶解在克罗米通、氮甲基吡咯烷酮和PEG400的溶液中,混合,搅拌均匀,得组分B;
3)称取甲基纤维素、卡波姆、氢氧化铝、依地酸二钠、二氧化钛至练合锅中,加入甘油,分散均匀。继续加入组分B、氮酮、及液体石蜡,使其充分练合,分散均匀,再加入组分A,约40℃保温,混合,搅拌均匀,制成膏;
4)将膏均匀涂布、切片、包装、制得贴剂。
实施例3
制备方法:
1)将酒石酸加入到纯化水中,搅拌均匀,得组分A;
2)将依托考昔溶解在丙二醇和克罗米通的溶液中,混合,搅拌均匀,得组分B;
3)称取羧甲基纤维素、卡波姆、壳聚糖、甘羟铝、依地酸二钠、高岭土和尼泊金甲酯至练合锅中,加入甘油,分散均匀。继续加入组分B、薄荷醇及聚丁烯,使其充分练合,分散均匀,再加入组分A,约40℃保温,混合,搅拌均匀,制成膏;
4)将膏均匀涂布、切片、包装、制得贴剂。
实施例4
制备方法:
1)将明胶加入纯化水中,溶解后加入柠檬酸,搅拌均匀,得组分A;
2)将依托考昔溶解在克罗米通中,混合,搅拌均匀,得组分B;
3)称取乙基纤维素、甘羟铝、氢氧化铝、依地酸二钠、氧化锌、尼泊金甲酯至练合锅中,加入PEG400,分散均匀。继续加入组分B、薄荷醇、油酸及氢化蓖麻油,使其充分练合,分散均匀,再加入组分A,约40℃保温,混合,搅拌均匀,制成膏;
4)将膏均匀涂布、切片、包装、制得贴剂。
实施例5
制备方法:
1)将阿拉伯胶加入纯化水中,溶解后加入柠檬酸,搅拌均匀,得组分A;
2)将依托考昔溶解在克罗米通中,混合,搅拌均匀,得组分B;
3)称取羟丙基纤维素、NP-600、甘羟铝、氯化铝、依地酸二钠、泊洛沙姆、抗坏血酸至练合锅中,加入山梨醇,分散均匀。继续加入组分B、氮酮及液体石蜡,使其充分练合,分散均匀,再加入组分A,约40℃保温,混合,搅拌均匀,制成膏;
4)将膏均匀涂布、切片、包装、制得贴剂。
实施例6
制备方法:
1)将明胶加入纯化水中,溶解后加入酒石酸,搅拌均匀,得组分A;
2)将依托考昔溶解在克罗米通和氮甲基吡咯烷酮的溶液中,混合,搅拌均匀,得组分B;
3)称取羟乙基纤维素、聚丙烯酸、氢氧化铝、二氧化钛、对羟基苯甲酸乙酯至练合锅中,加入甘油,分散均匀。继续加入组分B、聚丁烯,使其充分练合,分散均匀,再加入组分A,约40℃保温,混合,搅拌均匀,制成膏;
4)将膏均匀涂布、切片、包装、制得贴剂。
实施例7
制备方法:
1)将酒石酸加入纯水中,得到组分A;
2)将塞来昔布溶解在丙二醇和克罗米通的容液中,混合,搅拌均匀,的组分B;
3)称取NP-700、甲基纤维素、羧甲基纤维素钠、氢氧化铝、吐温80至练合锅中,加入甘油,分散均匀。继续加入组分B、薄荷醇、及液体石蜡,使其充分练合,分散均匀,再加入组分A,约40℃保温,混合,搅拌均匀,制成膏;
4)将膏均匀涂布、切片、包装、制得贴剂。
实施例8
制备方法:
1)将酒石酸加入纯水中,得到组分A;
2)将吲哚美辛溶解在丙二醇和克罗米通的容液中,混合,搅拌均匀,的组分B;
3)称取NP-700、卡波姆、羧甲基纤维素钠、氢氧化铝、吐温80至练合锅中,加入甘油,分散均匀。继续加入组分B、薄荷醇、及液体石蜡,使其充分练合,分散均匀,再加入组分A,约40℃保温,混合,搅拌均匀,制成膏;
4)将膏均匀涂布、切片、包装、制得贴剂。
实施例9
制备方法:
1)将明胶加入纯水中,溶解后加入酒石酸,得到组分A;
2)将吡罗昔康溶解在丙二醇和克罗米通的容液中,混合,搅拌均匀,的组分B;
3)称取卡波姆、羧甲基纤维素钠、氢氧化铝、吐温80至练合锅中,加入甘油,分散均匀。继续加入组分B、薄荷醇、及液体石蜡,使其充分练合,分散均匀,再加入组分A,约40℃保温,混合,搅拌均匀,制成膏;
4)将膏均匀涂布、切片、包装、制得贴剂。
比较例1
制备方法:
1)将依托考昔溶解在丙二醇和克罗米通的容液中,混合,搅拌均匀,的组分A;
2)称取NP-700、卡波姆、羧甲基纤维素钠、氢氧化铝、吐温80至练合锅中,加入甘油,分散均匀。继续加入组分A、薄荷醇、及液体石蜡,使其充分练合,分散均匀,加水,约40℃保温,混合,搅拌均匀,制成膏;
3)将膏均匀涂布、切片、包装、制得贴剂。
比较例2
制备方法:
1)将酒石酸加入纯水中,得到组分A;
2)将依托考昔溶解在丙二醇中,混合,搅拌均匀,的组分B;
3)称取NP-700、卡波姆、羧甲基纤维素钠、氢氧化铝、吐温80至练合锅中,加入甘油,分散均匀。继续加入组分B、薄荷醇、及液体石蜡,使其充分练合,分散均匀,再加入组分A,约40℃保温,混合,搅拌均匀,制成膏;
4)将膏均匀涂布、切片、包装、制得贴剂。
比较例3
制备方法:
1)将酒石酸加入纯水中,得到组分A;
2)将依托考昔溶解在丙二醇和克罗米通的容液中,混合,搅拌均匀,的组分B;
3)称取NP-700、卡波姆、羧甲基纤维素钠、氢氧化铝、吐温80至练合锅中,加入甘油,分散均匀。继续加入组分B、薄荷醇、及液体石蜡,使其充分练合,分散均匀,再加入组分A,约40℃保温,混合,搅拌均匀,制成膏;
4)将膏均匀涂布、切片、包装、制得贴剂。
试验例1 稳定性试验
按照实施例1、2、3、4、5、6及比较例、2、3分别制备贴剂,将贴剂分别用纸塑袋密封,放置在温度40℃,相对湿度75%稳定性培养箱中保存,于0、1、2、3、6个月分别测定贴剂的含量,结果如表1:
表1
从结果中可知,6个月内贴剂含药量基本稳定,实施例1-6中的贴剂无晶体析出,比较例1-3均有不同程度的晶体析出。
在温度30℃,相对湿度60%放置,于0、3、6、9、12、18、24、36个月测定含量,结果如表2:
表2
由表2结果可知,在36个月内本发明贴剂药物含量稳定,无晶体析出,比较例中贴剂药物含量下降迅速,有大量晶体析出,同时贴剂膏体有不同程度的变色现象出现,由以上结果说明本发明的水凝胶贴剂稳定性良好,易保存、不易析晶。
试验例2 体外透皮试验
实验方法:
猪皮:巴马小型猪皮
猪皮的处理过程如下:将猪皮的处理过程如下:将巴马小型猪处死,迅速将背部及两侧毛刮去,用水冲洗皮肤表面,取皮。采用专门的机械装置刮除皮下脂肪并使猪皮厚度均一,-20℃冷冻保存,使用前自然解冻至常温,用pH=7.4的等渗磷酸盐缓冲液冲洗浸泡。
介质采用pH=7.4的等渗磷酸盐缓冲液,将膏体和猪皮裁剪成合适大小,将贴膏除去离型膜粘附于猪皮的外侧(有角质层的一侧),将猪皮和贴膏覆于释放池,用夹具夹紧,充满释放介质,按照规定的时间点取样检测,并补充同样体积的新鲜释放介质,计算样品液中药物的浓度,计算单位面积累积透过量Q(μg/cm2),结果见表3:
表3 体外透皮试验
由体外透皮试验结果可知,本发明实施例1-6所制备的依托考昔贴剂透皮吸收情况良好,并且随时间的增加透过率不断加大,24小时透过率均超过5%,从而说明本发明所制备的依托考昔贴剂透皮吸收效果良好,能够有效增加局部用药的血药浓度,达到治疗的效果。
试验例3 皮肤局部刺激性试验
取24只家兔,体重在3.2-4.0kg,雌雄各半,采用同体左右侧自身对比,分为完整皮肤与破损皮肤组,每组6只,雌雄各半。
将家兔背部脊柱两侧去毛,脱毛面积约为15cm*15cm。去毛后24小时检查去毛皮肤是否受伤。破损皮肤的制作:采用一次性注射器针头,在脱毛区消毒皮肤上划出“#”形切口,长和宽各约5cm,深度为2-3mm,以不损伤皮下组织并有渗血为度。
将贴剂贴于脱毛区,分笼饲养。4组分别给予空白贴、实施例1、2、3的含药贴剂。每天给药1次,连续7天。末次给药24小时后,用温水洗去残留药物,观察动物去除收拾药物后1,24,48,72小时贴药部位有无红斑和水肿情况,是否有色素沉着、出血点、皮肤粗糙或皮肤菲薄等情况。结果显示,四组家兔均未出现红斑、水肿等过敏反应,说明此巴布剂对皮肤无刺激性,安全性好。
试验例4药代动力学试验
取体重3.0-3.8kg的健康家兔18只,雌雄各半。腹部剃毛刀剃除毛发,面积约为60cm2,温水洗净,饲养过夜。分成3组,雌雄各半,分别将实施例1、2、3的巴布剂贴于家兔腹部剃毛处,于给药后0.5、1、2、3、4、8、12、24、36小时,由耳缘静脉抽血,用液质测定血药浓度。药代动力学试验结果如图1。由要是曲线可见,在给药24小时后仍可测出较高的血药浓度,且达峰时间长和体内保留时间长,具有缓释作用。
Claims (11)
1.一种含有依托考昔的药用组合物,该组合物中至少含有药物活性成分,交联剂、交联调节剂,其中药物活性成分为环氧化酶-2(COX-2)抑制剂。
2.根据权利要求1所述的组合物,其特征在于该组合物中至少含有克罗米通。
3.根据权利要求1、2所述的水凝胶贴剂,其特征在于贴剂中各组分用量如下:
药物活性成分用量为0.1%-10%
克罗米通的用量为0.7%-5%;
交联剂的用量为0.1%-1%;
交联调节剂的用量为0.1%-2%。
4.根据权利要求1所述的水凝胶贴剂,其特征在于所述的药物活性成分环氧化酶-2(COX-2)。
5.根据权利要求1或2所述的水凝胶贴剂,其特征在于所述的抑制剂可以是罗非昔布、塞来昔布、双氯芬酸、美洛昔康、吲哚美辛、吡罗昔康或者依托考昔。
6.根据权利要求1所述的水凝胶贴剂,其特征在于所述的交联剂为高价金属盐,可以选自铝盐或者钙盐,其中优选铝盐。
7.根据权利要求1、5所述的水凝胶贴剂,其特征在于所述的交联剂可选自氯化铝、甘羟铝、氢氧化铝、柠檬酸铝、合成硅酸铝、氨基乙酸二羟铝、谷氨酸铝中的一种或者其中的几种,根据权利要求1所述的水凝胶贴剂,其特征在于所述的交联调节剂可以选自酒石酸、乳酸、柠檬酸、苹果酸、依地酸(EDTA)、葡萄糖酸或其盐中的一种或几种。
8.根据权利要求1所述的水凝胶贴剂,其特征在于所述的交联调节剂与交联剂的用量比为1.25:1—2:1。
9.根据权利要求1所述的水凝胶贴剂,其特征在于该贴剂中含有纯化水,其含量为30%-70%。
10.根据权利要求1所述的水凝胶贴剂,其特征在于该贴剂中还含有亲水性聚合物材料,其中亲水性高分子材料可以选自纤维素及其衍生物、合成高分子材料或其他源于生物的亲水性胶体、多糖、多肽或其亲水性衍生物,其用量为5.0%-20.0%。
11.根据权利要求1所述的水凝胶贴剂,其特征在于该贴剂中还可以含有透皮吸收促进剂、保湿剂、增塑剂、表面活性剂、填充剂或者其他药学上可接受的赋形剂。
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| CN114615974A (zh) * | 2019-11-06 | 2022-06-10 | 智能科技专题有限公司 | 环加氧酶抑制剂的局部制剂及其用途 |
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