CN106943345A - 一种注射用的左旋奥拉西坦及其制备方法 - Google Patents
一种注射用的左旋奥拉西坦及其制备方法 Download PDFInfo
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- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/40—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil
- A61K31/4015—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil having oxo groups directly attached to the heterocyclic ring, e.g. piracetam, ethosuximide
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Abstract
一种注射用的左旋奥拉西坦,它是由下列重量百分比的原辅料制得:左旋奥拉西坦70%~80%,甘油10%~20%,甘氨酸6%~15%;依照本发明制得的注射用的左旋奥拉西坦灭菌过程溶液pH值基本无变化,产品具有澄清度好,澄清度低于0.5号标准浊度液,稳定性好,储存过程中不会产生结晶,有效期长,可达到18个月以上,有效期内产品杂质少,其总杂质低于0.35%,不溶性微粒检查均小于25μm,制备工艺简单可行,值得市场推广。
Description
技术领域
本发明主要涉及制药技术领域,具体涉及一种注射用的左旋奥拉西坦及其制备方法。
背景技术
奥拉西坦(S-oxiracetam)是一种合成的羟基氨基丁酸(BABOB)环状衍生物,仅用于中枢神经系统,主要分布在大脑皮层、海马,有激活、保护或促进神经细胞的功能恢复,改善智能障碍患者的记忆学习功能,而药物本身没有直接的血管活性,也没有中枢兴奋作用,对学习记忆能力的影响是一种持久的促进作用。
该药于1987年在意大利上市,上市的剂型为片剂,800mg;胶囊,800mg;注射液,1g/5ml。目前国内只有奥拉西坦胶囊和注射液上市,且所用主要活性成分均为外消旋体。叶雷等在公开号为CN 103735545 A专利中提到左旋奥拉西坦对酒精中毒所致昏迷的促醒作用明显,而右旋奥拉西坦基本没有作用,左旋奥拉西坦的上述促醒效果为消旋奥拉西坦的2倍;左旋奥拉西坦对外伤、麻醉所致昏迷的促醒作用均显著。张峰等在公开号为CN 103599101 A的专利中披露左旋奥拉西坦对液压及自由落体所致创伤性脑损伤大鼠学习记忆认知功能障碍均有明显的改善作用,其药效远高于右旋奥拉西坦。且200mg/kg左旋奥拉西坦与400mg/kg奥拉西坦的作用相当。药代动力学研究结果显示:左旋奥拉西坦和右旋奥拉西坦在比格犬体内无明显手性转化。比格犬单次静脉注射给予左旋和2倍剂量的消旋奥拉西坦后血浆中左旋奥拉西坦的主要药动学参数均无明显差异。安全药理、急毒、长毒等试验结果表明,在同等剂量水平下,左旋奥拉西坦与奥拉西坦对受试动物或细胞的毒性无明显差异。上述临床前的研究结果表明,左旋奥拉西坦是奥拉西坦体内发挥药效的主要活性成分,单独使用本品可降低临床使用剂量,降低潜在的毒副反应。
现有注射用的左旋奥拉西坦其主要存在主药溶解性较差,产品灭菌过程中溶液pH变化较大,成品稳定性较差,储存过程中杂质增大较快,澄清度较差等问题。
发明内容
本发明的目的在于提供一种澄清度好、稳定性好的注射用左旋奥拉西坦。
本发明的另一目的在于提供上述注射用左旋奥拉西坦的制备方法。
本发明的目的是通过如下技术措施实现的:
一种注射用的左旋奥拉西坦,其特征在于,它是由下列重量百分比的原辅料制得:左旋奥拉西坦70%~90%、附加剂10%~30%,其中所述附加剂为葡萄糖、氯化钠、甘露醇、甘油、L-丝氨酸、谷氨酸钠、丙氨酸、甘氨酸、卵磷脂、丙二醇、苯甲醇、三氯叔丁醇、亚硫酸钠、亚硫酸氢钠、焦亚硫酸钠中的一种或多种。
发明人发现特定的原辅料配比关系,配合配液过程中特定的pH调节剂以及特定的pH,再配合一定量的壳聚糖处理,可使得产品在灭菌过程溶液pH变化较小,产品澄清度显著提高,上述注射用的左旋奥拉西坦,其特征在于,它是由下列重量百分比的原辅料制得:左旋奥拉西坦70%~80%,甘油10%~20%,甘氨酸6%~15%;将上述原辅料加入配料罐中,随即加入2/3处方量的灭菌注射用水,搅拌,溶解,得浓配液;取浓配液,加入磷酸钠盐缓冲液(精密称取磷酸氢二钠65.697g和磷酸二氢钠2.346g置于1000ml容量瓶中,加入纯化水溶解、稀释定容至刻度,即得)调节pH至6.0~7.0,向上述溶液中加入总体积0.2%~0.6%(g/ml)的壳聚糖,搅拌,混匀,静置30~50min,用0.8μm的滤膜滤过,加入总体积0.1%~0.3%(g/ml)的活性炭,吸附脱色,用0.45μm的滤膜滤过,收集滤液,加入灭菌注射用水至处方量,经中间品检验合格,即可;
最优选地,上述注射用左旋奥拉西坦,其特征在于,它是由下列重要百分比的原辅料制得:左旋奥拉西坦73%~78%,甘油12%~17%,甘氨酸8%~12%;将上述原辅料加入配料罐中,随即加入2/3处方量的灭菌注射用水,搅拌,溶解,得浓配液;取浓配液,加入磷酸钠盐缓冲液(精密称取磷酸氢二钠65.697g和磷酸二氢钠2.346g置于1000ml容量瓶中,加入纯化水溶解、稀释定容至刻度,即得)调节pH至6.5,向上述溶液中加入总体积0.2%~0.6%(g/ml)的壳聚糖,搅拌,混匀,静置30~50min,用0.8μm的滤膜滤过,加入总体积0.1%~0.3%(g/ml)的活性炭,吸附脱色,用0.45μm的滤膜滤过,收集滤液,加入灭菌注射用水至处方量,经中间品检验合格,即可;
一种注射用的左旋奥拉西坦的制备方法,其特征在于,它是按如下步骤制得的:
1.浓配:将上述原辅料加入配料罐中,随即加入2/3处方量的灭菌注射用水,搅拌,溶解,得浓配液;
2.稀配:取浓配液,加入磷酸钠盐缓冲液(精密称取磷酸氢二钠65.697g和磷酸二氢钠2.346g置于1000ml容量瓶中,加入纯化水溶解、稀释定容至刻度,即得)调节pH至6.5,向上述溶液中加入总体积0.2%~0.6%质量体积比的壳聚糖,搅拌,混匀,静置30~50min,用0.8μm的滤膜滤过,加入总体积0.1%~0.3%质量体积比的活性炭,吸附脱色,用0.45μm的滤膜滤过,收集滤液,加灭菌注射用水至处方量,经中间品检验合格,即可;
3.灌封:中间体检验合格后用0.22μm的过滤器过滤,检查可见异物,细菌内毒素合格后,上流水线进行灌装,封口;
4.灭菌:将灌装好的安剖半成品送入蒸汽灭菌锅灭菌,121℃灭菌15min,灭菌程序:10℃/min,升至121℃,在121℃保持15min;压缩空气鼓风3~5℃/min降温,8~12min冷却至70~80℃,冷却水2~3℃/min降温,15~18min冷却至30℃,灭菌完成,按规定条件检漏;
5.检验:将灭菌后样品检查可见异物,将检验合格的样品进行外包,全检,入库,即得。
本发明具有如下的有益效果:
本发明注射用的左旋奥拉西坦灭菌过程溶液pH值基本无变化,产品具有澄清度好,澄清度低于0.5号标准浊度液,稳定性好,储存过程中不会产生结晶,有效期长,可达到18个月以上,有效期内产品杂质少,其总杂质低于0.35%,不溶性微粒检查均小于25μm,制备工艺简单可行,值得市场推广。
具体实施方式
下面通过实施例对本发明进行具体的描述,有必要在此指出的是以下实施例只用于对本发明进行进一步说明,不能理解为对本发明保护范围的限制,在不背离本发明精神和实质的情况下,对本发明方法、步骤或条件所作的修改或替换,均属于本发明的范围。
实施例1
一种注射用的左旋奥拉西坦,按以下步骤制得:
制剂工艺:
1.浓配:将上述原辅料加入配料罐中,随即加入2/3处方量的灭菌注射用水,搅拌,溶解,得浓配液;
2.稀配:取浓配液,加入磷酸钠盐缓冲液(精密称取磷酸氢二钠65.697g和磷酸二氢钠2.346g置于1000ml容量瓶中,加入纯化水溶解、稀释定容至刻度,即得)调节pH至6.5,向上述溶液中加入总体积0.2%~0.6%质量体积比的壳聚糖,搅拌,混匀,静置30~50min,用0.8μm的滤膜滤过,加入总体积0.1%~0.3%质量体积比的活性炭,吸附脱色,用0.45μm的滤膜滤过,收集滤液,加灭菌注射用水至处方量,经中间品检验合格,即可;
3.灌封:中间体检验合格后用0.22μm的过滤器过滤,检查可见异物,细菌内毒素合格后,上流水线进行灌装,封口;
4.灭菌:将灌装好的安剖半成品送入蒸汽灭菌锅灭菌,121℃灭菌15min,灭菌程序:10℃/min,升至121℃,在121℃保持15min;压缩空气鼓风3~5℃/min降温,8~12min冷却至70~80℃,冷却水2~3℃/min降温,15~18min冷却至30℃,灭菌完成,按规定条件检漏;
5.检验:将灭菌后样品检查可见异物,将检验合格的样品进行外包,全检,入库,即得。
为了更好的理解本发明,以下通过本发明稳定性试验来进一步阐述发明药物的有益效果,而非对本发明的限制。
实验一:本发明一种注射用的左旋奥拉西坦稳定性实验
实验材料:
注射用的奥拉西坦样品:为实施例1制得
加速实验方法:将实施例1制得的注射用的奥拉西坦按上市包装,置加速实验箱中,一定时间取样,对考察项目进行检验。
加速实验温度:40±2℃
湿度:RH75%±5%
考察时间:0、1、2、3、6月
考察指标:性状、可见异物、不溶性微粒、澄清度、pH、有关物质、含量、无菌检查
加速试验稳定性记录:
加速实验结果表明:加速6月样品与0月样品各项检测指标质量相当,表明本品加速实验6月,质量保持稳定,本品稳定性较好。
长期实验方法:将实施例1制得的注射用的左旋奥拉西坦按上市包装,置长期留样箱中,一定时间取样,对考察项目进行检验。
加速实验温度:25±2℃
湿度:RH60%±10%
考察时间:0、3、6、9、12、18月
考察指标:性状、可见异物、不溶性微粒、澄清度、pH、有关物质、含量、无菌检查
长期试验稳定性记录:
长期试验表明:本品长期试验18个月性状、可见异物、澄清度、pH值、有关物质、含量以及无菌检查各项指标均无显著变化,均符合生产用质量标准草案的各项相关规定。本品长期试验18个月质量稳定,故本品有效期最少18个月,长期试验仍在继续考察过程中。
实验二:本发明一种注射用的左旋奥拉西坦澄明度对比试验研究
1.实验材料:
注射用的左旋奥拉西坦样品:为实施例1制得
注射用的左旋奥拉西坦对照样品:分别单因素的改变pH调节剂、pH值和不加壳聚糖等因素后,按实施例1制得的注射用的左旋奥拉西坦样品作为对照样品。
2.实验方法:照2010年版药典附录IXB澄清度检查法进行检验。
3.实验结果见下表:
| 检验样品 | 结果 |
| 实施例1样品 | ≤0.5标准浊度液 |
| 对照样品1:以碳酸氢钠作为pH调节剂所制得样品 | 0.5标准浊度液≤澄清度≤1.0标准浊度液 |
| 对照样品2:pH调节至7.5 | 0.5标准浊度液≤澄清度≤1.0标准浊度液 |
| 对照样品3:pH调节至6.0 | 0.5标准浊度液≤澄清度≤1.0标准浊度液 |
| 对照样品4:未加壳聚糖处理的样品 | ≥1.0 |
4.实验结论:实施例1所制得的样品澄清度优于各对照样品。
实验三:不同pH调节剂对产品灭菌前后溶液pH的影响
1.实验材料:
注射用的左旋奥拉西坦样品:为实施例1制得
注射用的左旋奥拉西坦对照样品:分别以碳酸氢钠、氢氧化钠、磷酸氢二钠作为pH调节剂,按实施例1的制备方法制得的注射用左旋奥拉西坦作为对照样品。
2.实验方法:照2010年版中国药典第一步附录VIIG pH值测定法对产品灭菌前后的溶液pH进行检验,考察不同pH调节剂对产品灭菌前后pH的影响。
3.实验结果见下表:
4.实验结论:实施例1所制得的样品灭菌前后溶液pH基本无变化。
实施例2
一种注射用的左旋奥拉西坦,按以下步骤制得:
制剂工艺:照实施例1的制备工艺制得。
按实施例1的试验方法,分别进行稳定性试验考察、澄清度对比试验以及不同pH调节剂对产品灭菌前后溶液pH的影响实验,实施例2样品稳定性试验结果表明加速6月样品质量稳定,长期18个月质量稳定,故本品有效期最少18个月。澄清度对比试验试验结果表明实施例2所生产的样品澄清度小于0.5号标准浊度液,本品澄清度好。不同pH调节剂对产品灭菌前后溶液pH的影响实验表明实施例2所制得的样品灭菌前后溶液pH基本无变化。
实施例3
一种注射用的左旋奥拉西坦,按以下步骤制得:
制剂工艺:照实施例1的制备工艺制得。
按实施例1的试验方法,分别进行稳定性试验考察、澄清度对比试验以及不同pH调节剂对产品灭菌前后溶液pH的影响实验,实施例3样品稳定性试验结果表明加速6月样品质量稳定,长期18个月质量稳定,故本品有效期最少18个月。澄清度对比试验试验结果表明实施例3所生产的样品澄清度小于0.5号标准浊度液,本品澄清度好。不同pH调节剂对产品灭菌前后溶液pH的影响实验表明实施例3所制得的样品灭菌前后溶液pH基本无变化。
实施例4-6:一种注射用的左旋奥拉西坦,按以下重量的原辅料制备而得,制备方法同实施例1:
按实施例1的试验方法,分别进行稳定性试验考察、澄清度对比试验以及不同pH调节剂对产品灭菌前后溶液pH的影响实验,实施例4、5、6样品稳定性试验结果表明加速6月样品质量稳定,长期18个月质量稳定,故本品有效期最少18个月。澄清度对比试验试验结果表明实施例4、5、6所生产的样品澄清度小于0.5号标准浊度液,本品澄清度好。不同pH调节剂对产品灭菌前后溶液pH的影响实验表明实施例4、5、6所制得的样品灭菌前后溶液pH基本无变化。
Claims (3)
1.一种注射用的左旋奥拉西坦,其特征在于,它是由下列重量百分比的原辅料制得:左旋奥拉西坦70%~80%,甘油10%~20%,甘氨酸6%~15%;将上述原辅料加入配料罐中,随即加入2/3处方量的灭菌注射用水,搅拌,溶解,得浓配液;取浓配液,加入磷酸钠盐缓冲液(精密称取磷酸氢二钠65.697g和磷酸二氢钠2.346g置于1000ml容量瓶中,加入纯化水溶解、稀释定容至刻度,即得)调节pH至6.0~7.0,向上述溶液中加入总体积0.2%~0.6%(g/ml)的壳聚糖,搅拌,混匀,静置30~50min,用0.8μm的滤膜滤过,加入总体积0.1%~0.3%(g/ml)的活性炭,吸附脱色,用0.45μm的滤膜滤过,收集滤液,加入灭菌注射用水至处方量,经中间品检验合格,即可。
2.如权利要求1所述的注射用左旋奥拉西坦,其特征在于,它是由下列重要百分比的原辅料制得:左旋奥拉西坦73%~78%,甘油12%~17%,甘氨酸8%~12%;将上述原辅料加入配料罐中,随即加入2/3处方量的灭菌注射用水,搅拌,溶解,得浓配液;取浓配液,加入磷酸钠盐缓冲液(精密称取磷酸氢二钠65.697g和磷酸二氢钠2.346g置于1000ml容量瓶中,加入纯化水溶解、稀释定容至刻度,即得)调节pH至6.5,向上述溶液中加入总体积0.2%~0.6%(g/ml)的壳聚糖,搅拌,混匀,静置30~50min,用0.8μm的滤膜滤过,加入总体积0.1%~0.3%(g/ml)的活性炭,吸附脱色,用0.45μm的滤膜滤过,收集滤液,加入灭菌注射用水至处方量,经中间品检验合格,即可。
3.如权利要求1或2所述的一种注射用的左旋奥拉西坦的制备方法,其特征在于,它是按如下步骤制得的:
A.浓配:将上述原辅料加入配料罐中,随即加入2/3处方量的灭菌注射用水,搅拌,溶解,得浓配液;
B.稀配:取浓配液,加入磷酸钠盐缓冲液(精密称取磷酸氢二钠65.697g和磷酸二氢钠2.346g置于1000ml容量瓶中,加入纯化水溶解、稀释定容至刻度,即得)调节pH至6.5,向上述溶液中加入总体积0.2%~0.6%质量体积比的壳聚糖,搅拌,混匀,静置30~50min,用0.8μm的滤膜滤过,加入总体积0.1%~0.3%质量体积比的活性炭,吸附脱色,用0.45μm的滤膜滤过,收集滤液,加灭菌注射用水至处方量,经中间品检验合格,即可;
C.灌封:中间体检验合格后用0.22μm的过滤器过滤,检查可见异物,细菌内毒素合格后,上流水线进行灌装,封口;
D.灭菌:将灌装好的安剖半成品送入蒸汽灭菌锅灭菌,121℃灭菌15min,灭菌程序:10℃/min,升至121℃,在121℃保持15min;压缩空气鼓风3~5℃/min降温,8~12min冷却至70~80℃,冷却水2~3℃/min降温,15~18min冷却至30℃,灭菌完成,按规定条件检漏;
E.检验:将灭菌后样品检查可见异物,将检验合格的样品进行外包,全检,入库,即得。
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| CN102670497A (zh) * | 2012-05-31 | 2012-09-19 | 北京阜康仁生物制药科技有限公司 | 一种稳定的s-奥拉西坦注射用制剂及其制备方法 |
| CN103536543A (zh) * | 2013-10-15 | 2014-01-29 | 海南卫康制药(潜山)有限公司 | 注射用奥拉西坦组合物冻干粉针 |
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