CN114652687B - 一种去岩藻糖基化的抗Her2抗体冻干粉针剂的制备方法 - Google Patents
一种去岩藻糖基化的抗Her2抗体冻干粉针剂的制备方法 Download PDFInfo
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Abstract
本发明公开了一种去岩藻糖基化的抗Her2抗体冻干粉针剂的制备方法,该方法包括以下步骤:(1)将去岩藻糖基化的抗Her2抗体制剂灌装到10ml的西林瓶中,并完成半加塞工作;(2)在0℃条件下,依次经过预冻、升华干燥、解析干燥,得到10ml西林瓶封装的注射用去岩藻糖基化的抗Her2抗体冻干粉针剂。本发明将去岩藻糖基化的抗Her2抗体冻干粉针剂由50ml西林瓶改成10ml西林瓶灌装,减少二次污染量,提高生产效率,降低生产成本。
Description
技术领域
本发明属于冻干粉针剂制备领域,特别涉及一种去岩藻糖基化的抗Her2抗体冻干粉针剂的制备方法。
背景技术
人源化的抗Her2抗体是由悬养于无菌培养基中的哺乳动物细胞(中国仓鼠卵巢细胞CHO)产生的,用亲合色谱法和离子交换法纯化,包括特殊的病毒灭活的去除程序。抗Her2抗体是一种重组DNA衍生的人源化单克隆抗体,选择性地作用于人表皮生长因子受体-2(Her2)的细胞外部位,此抗体属IgG1型,含人的框架区,及能与Her-2结合的鼠抗-p185Her2抗体的互补决定区,因此抗Her2抗体在体外及动物实验中均显示可抑制Her2过度表达的肿瘤细胞的增殖。
蛋白质比传统的有机和无机药物更大和更加复杂,为保持蛋白质的生物学活性,制剂必须至少保持蛋白质的氨基酸核心序列的整体构象完整,同时防止蛋白质的多个官能团发生降解。蛋白质的降解途径可能涉及化学不稳定性(即任何涉及蛋白质修饰的过程,通过成键或键断裂,生成新的化学实体)或物理不稳定性(即蛋白质高级结构的改变)。化学不稳定性可产生自脱酰胺化、外消旋化、水解、氧化、β消除或二硫键交换。物理不稳定性可由变性、聚集、沉淀或吸附所导致。三个最常见的蛋白质降解途径为蛋白质聚集、脱酰胺化和氧化。
冷冻干燥(冻干)是指把药品溶液在低温下冻结,然后在真空条件下升华干燥,除去冰晶,待升华结束后再进行解析干燥,除去部分结合水的干燥方法。由于冻干药品呈多孔状、能长时间稳定贮存、并易重新复溶于水而恢复活性,因此冷冻干燥技术广泛应用于制备固体蛋白质药物、口服速溶药物及药物包埋剂脂质体等药品。冻干制剂相比液体制剂能显著的提高蛋白药物的稳定性。
目前,在无菌药品生产过程中,冻干粉针剂是以西林瓶作为内包装。现有的生产抗Her2抗体冻干粉针剂大都使用50ml西林瓶作为包装瓶,规格为440mg/20ml。在治疗转移性乳腺癌时,按照给药量的标准,初次负荷剂量为4mg/kg,维持治疗时每周用量为2mg/kg,70kg的成年人初次负荷剂量为280mg,使用规格为440mg/20ml的抗Her2抗体冻干粉针剂,造成的药品浪费或者药品二次污染量较多。此外,灌装的药粉体积为20ml,药粉体积仅占50ml西林瓶容积的2/5,当瓶子较大而灌装量较少时,会在降低生产效率的同时大大增加生产成本。
若使用10ml西林瓶进行灌装,规格为100mg/5ml,按照70kg的标准成人体重计算,造成的药品浪费或者药品二次污染量较少。使用10ml西林瓶进行灌装,药液量也不会超过容积的1/2,符合药品灌装标准。但是,与50ml西林瓶相比,10ml西林瓶的瓶内表面积较小,冻干难度较高,采用现有的冻干工艺取得的冻干效果不佳。
发明内容
本发明的目的,是提供一种去岩藻糖基化的抗Her2抗体冻干粉针剂的制备方法。本发明的去岩藻糖基化的抗Her2抗体,是利用CRISPR/Cas9技术,针对FUT8基因的外显子区域设计sgRNA,构建载体质粒,进而敲除FUT8基因得到的FUT8基因沉默的抗Her2抗体。具体而言,参见专利2020112446131中敲除FUT8基因的方法。
本发明解决了去岩藻糖基化的抗Her2抗体冻干粉针剂由50ml西林瓶改为10ml西林瓶灌装后,冻干难度较高,现有冻干工艺取得的冻干效果不佳的问题。
本发明的目的可以通过以下技术方案实现:
一种去岩藻糖基化的抗Her2抗体冻干粉针剂的制备方法,其特征在于,包括以下步骤:
(1)将去岩藻糖基化的抗Her2抗体制剂灌装到10ml的西林瓶中;
(2)在0℃条件下,依次经过预冻、升华干燥、解析干燥,得到10ml西林瓶封装的注射用去岩藻糖基化的抗Her2抗体冻干粉针剂。
所述预冻的具体操作过程包括:将温度在15min~25min内由0℃降到-30℃~-40℃,并在-30℃~-40℃条件下保温80min~120min。
优选的,所述预冻的具体操作过程包括:将温度在20min内由0℃降到-30℃~-40℃,并在-30℃~-40℃条件下保温100min。
更优选的,所述预冻的具体操作过程包括:将温度在20min内由0℃降到-35℃,并在-35℃条件下保温100min。
所述升华干燥的具体操作过程包括:将温度在20min~30min内上升到-8℃~-13℃,并在-8℃~-13℃下保温30min~40min,保持真空度10Pa~20Pa;将温度在150min~220min内上升到-3℃~-7℃,并在-3℃~-7℃下在保温800min~1000min,保持真空度5Pa~15Pa;将温度在150min~220min内上升到-2℃~2℃,并在-2℃~2℃下保温300min~500min,保持真空度5Pa~15Pa;将温度在100min~150min内上升到3℃~8℃,并在3℃~8℃下保温150min~220min,保持真空度5Pa~15Pa。
优选的,所述升华干燥的具体操作过程包括:将温度在25min内上升到-8℃~-13℃,并在-8℃~-13℃下保温35min,保持真空度15Pa;将温度在180min内上升到-3℃~-7℃,并在-3℃~-7℃下在保温900min,保持真空度10Pa;将温度在180min内上升到-2℃~2℃,并在-2℃~2℃下保温400min,保持真空度10Pa;将温度在120min内上升到3℃~8℃,并在3℃~8℃下保温180min,保持真空度10Pa。
更优选的,所述升华干燥的具体操作过程包括:将温度在25min内上升到-10℃,并在-10℃下保温35min,保持真空度15Pa;将温度在180min内上升到-5℃,并在-5℃下在保温900min,保持真空度10Pa;将温度在180min内上升到0℃,并在0℃下保温400min,保持真空度10Pa;将温度在120min内上升到5℃,并在5℃下保温180min,保持真空度10Pa。
所述解析干燥的具体操作过程包括:将温度在30min~50min内上升到23℃~28℃,并在23℃~28℃下保温200min~300min,保持真空度5Pa~15Pa;将真空度降5pa,继续保持100min~150min。
优选的,所述解析干燥的具体操作过程包括:将温度在40min内上升到23℃~28℃,并在23℃~28℃下保温240min,保持真空度10Pa;将真空度降5pa,继续保持120min。
更优选的,所述解析干燥的具体操作过程包括:将温度在40min内上升到25℃,并在25℃下保温240min,保持真空度10Pa;将真空度降5pa,继续保持120min。
本发明与现有技术相比,其有益效果为:
(1)本发明的去岩藻糖基化的抗Her2抗体冻干粉针剂由原来50ml西林瓶的包装改为由10ml西林瓶包装,对去岩藻糖基化的抗Her2抗体制剂冻干过程中升华干燥中的温度和时间进行梯度控制,使制得的去岩藻糖基化的抗Her2抗体冻干粉针剂具有良好的复溶性和稳定性。
(2)本发明的去岩藻糖基化的抗Her2抗体冻干粉针剂的冻干过程中,对冷冻干燥曲线优化,提高了生产效率,同时包装材料规格变小,使总生产成本大大降低。
(3)相比于现有的50ml包装的抗Her2抗体冻干粉针剂,本发明的注射用抗Her2抗体冻干粉针剂,其包装体积小、易包装运输,不易破损,临床使用配置方便,不易产生污染。
(4)本发明的去岩藻糖基化的抗Her2抗体冻干粉针剂的制备方法简单,易于工业化生产。
具体实施方式
以下结合实施例对本发明的技术方案进行详细说明。以下实施例将有助于本领域的技术人员进一步理解本发明,但不以任何形式限制本发明。应当指出的是,对本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干调整和改进。这些都属于本发明的保护范围。
实施例1
去岩藻糖基化的抗Her2抗体制剂采用一水合盐酸组氨酸、组氨酸、聚山梨酯20作为蛋白的制剂辅料,二水合海藻糖(α,α)作为冻干赋形剂,具体见表1。
表1去岩藻糖基化的抗Her2抗体制剂组成
组分 | 含量(g/L) |
去岩藻糖基化的抗Her2抗体 | 20.0 |
一水合盐酸组氨酸 | 0.5 |
组氨酸 | 0.3 |
聚山梨酯20 | 0.1 |
二水合海藻糖(α,α) | 19.0 |
实施例2
(1)将实施例1中的去岩藻糖基化的抗Her2抗体制剂5ml灌装到10ml的西林瓶中,并完成半加塞工作;
(2)在0℃条件下放入冻干机中,将温度在20min内由0℃降到-30℃,并在-30℃条件下保温100min进行预冻;再进行升华干燥,具体步骤为:将温度在25min内上升到-13℃,并在-13℃下保温35min,保持真空度15pa;将温度在180min内上升到-7℃,并在-7℃下在保温900min,保持真空度10pa;将温度在180min内上升到-2℃,并在-2℃下保温400min,保持真空度10pa;将温度在120min内上升到3℃,并在3℃下保温180min,保持真空度10pa。升华干燥的判定终点为关闭中隔阀,前箱真空度在3min内变化应不超过3pa。
(3)将温度在40min内上升到23℃,并在23℃下保温240min,保持真空度10pa。将真空度降5pa,继续保持120min。解析干燥的判定终点为关闭中隔阀,前箱真空度在5min内变化应不超过2pa。完成解析干燥,压塞,出箱,用铝塑组合盖轧盖密封,得到10ml西林瓶装的去岩藻糖基化的抗Her2抗体冻干粉针剂A。
实施例3
(1)将实施例1中的去岩藻糖基化的抗Her2抗体制剂5ml灌装到10ml的西林瓶中,并完成半加塞工作;
(2)在0℃条件下放入冻干机中,将温度在20min内由0℃降到-35℃,并在-35℃条件下保温100min进行预冻;再进行升华干燥,具体步骤为:将温度在25min内上升到-10℃,并在-10℃下保温35min,保持真空度15pa;将温度在180min内上升到-5℃,并在-5℃下在保温900min,保持真空度10pa;将温度在180min内上升到0℃,并在0℃下保温400min,保持真空度10pa;将温度在120min内上升到5℃,并在5℃下保温180min,保持真空度10pa。升华干燥的判定终点为关闭中隔阀,前箱真空度在3min内变化应不超过3pa。
(3)将温度在40min内上升到25℃,并在25℃下保温240min,保持真空度10pa。将真空度降5pa,继续保持120min。解析干燥的判定终点为关闭中隔阀,前箱真空度在5min内变化应不超过2pa。完成解析干燥,压塞,出箱,用铝塑组合盖轧盖密封,得到10ml西林瓶装的去岩藻糖基化的抗Her2抗体冻干粉针剂B。
实施例4
(1)将实施例1中的去岩藻糖基化的抗Her2抗体制剂5ml灌装到10ml的西林瓶中,并完成半加塞工作;
(2)在0℃条件下放入冻干机中,将温度在20min内由0℃降到-40℃,并在-40℃条件下保温100min进行预冻;再进行升华干燥,具体步骤为:将温度在25min内上升到-8℃,并在-8℃下保温35min,保持真空度15pa;将温度在180min内上升到-3℃,并在-3℃下在保温900min,保持真空度10pa;将温度在180min内上升到2℃,并在2℃下保温400min,保持真空度10pa;将温度在120min内上升到8℃,并在8℃下保温180min,保持真空度10pa。升华干燥的判定终点为关闭中隔阀,前箱真空度在3min内变化应不超过3pa。
(3)将温度在40min内上升到28℃,并在28℃下保温240min,保持真空度10pa。将真空度降5pa,继续保持120min。解析干燥的判定终点为关闭中隔阀,前箱真空度在5min内变化应不超过2pa。完成解析干燥,压塞,出箱,用铝塑组合盖轧盖密封,得到10ml西林瓶装的去岩藻糖基化的抗Her2抗体冻干粉针剂C。
实施例5
(1)将实施例1中的去岩藻糖基化的抗Her2抗体制剂5ml灌装到10ml的西林瓶中,并完成半加塞工作;
(2)在0℃条件下放入冻干机中,将温度在20min内由0℃降到-35℃,并在-35℃条件下保温100min进行预冻;再进行升华干燥,具体步骤为:将温度在25min内上升到-10℃,并在-10℃下保温35min,保持真空度15pa;将温度在180min内上升到0℃,并在0℃下保温20h,保持真空度15pa;将温度在120min内上升到5℃,并在5℃下保温180min,保持真空度10pa。升华干燥的判定终点为关闭中隔阀,前箱真空度在3min内变化应不超过3pa。
(3)将温度在40min内上升到25℃,并在25℃下保温240min,保持真空度10pa。将温度上升到26℃,真空度降5pa,继续保持120min。解析干燥的判定终点为关闭中隔阀,前箱真空度在5min内变化应不超过2pa。完成解析干燥,压塞,出箱,用铝塑组合盖轧盖密封,得到10ml西林瓶装的去岩藻糖基化的抗Her2抗体冻干粉针剂D。
实施例6
(1)将实施例1中的去岩藻糖基化的抗Her2抗体制剂5ml灌装到10ml的西林瓶中,并完成半加塞工作;
(2)在0℃条件下放入冻干机中,将温度在60min内由0℃降到-45℃,并在-45℃条件下保温150min进行预冻;再进行升华干燥,具体步骤为:将温度在60min内上升到-25℃,并在-25℃下保温180min,极限真空;将温度在60min内上升到-15℃,并在-15℃下保温36h,保持真空度5pa;将温度在30min内上升到-5℃,并在-5℃下保温120min,保持真空度10pa。
(3)将温度在60min内上升到25℃,并在25℃下保温240min,极限真空。完成解析干燥,压塞,出箱,用铝塑组合盖轧盖密封,得到10ml西林瓶装的去岩藻糖基化的抗Her2抗体冻干粉针剂E。
结果分析:
对实施例2-6得到的去岩藻糖基化的抗Her2抗体冻干粉针剂进行含水量测试和复溶性测试,结果如表2所示。
表2去岩藻糖基化的抗Her2抗体冻干粉针剂检测结果
本发明的去岩藻糖基化的抗Her2抗体冻干粉针剂由50ml西林瓶变更为10ml西林瓶包装后,瓶子的直径减少,在相同装载量的冻干机下,可增加批量,提高生产效率。同时由于包装材料规格变小,瓶子及胶塞、纸盒、纸箱等包装材料使用减少,使总生产成本降低。本发明的去岩藻糖基化的抗Her2抗体冻干粉针剂具有良好的复溶性和稳定性,其包装体积减少,方便包装运输。本发明的去岩藻糖基化的抗Her2抗体冻干粉针剂由50ml西林瓶变更为10ml西林瓶包装后,其临床使用配置方便,不易产生污染。
Claims (9)
1.一种去岩藻糖基化的抗Her2抗体冻干粉针剂的制备方法,其特征在于,包括以下步骤:
(1)将去岩藻糖基化的抗Her2抗体制剂灌装到10ml的西林瓶中;
(2)在0℃条件下,依次经过预冻、升华干燥、解析干燥,得到10ml西林瓶封装的注射用去岩藻糖基化的抗Her2抗体冻干粉针剂;其中,所述升华干燥的具体操作过程包括:将温度在20min~30min内上升到-8℃~-13℃,并在-8℃~-13℃下保温30min~40min,保持真空度10Pa~20Pa;将温度在150min~220min内上升到-3℃~-7℃,并在-3℃~-7℃下在保温800min~1000min,保持真空度5Pa~15Pa;将温度在150min~220min内上升到-2℃~2℃,并在-2℃~2℃下保温300min~500min,保持真空度5Pa~15Pa;将温度在100min~150min内上升到3℃~8℃,并在3℃~8℃下保温150min~220min,保持真空度5Pa~15Pa。
2.根据权利要求1所述的去岩藻糖基化的抗Her2抗体冻干粉针剂的制备方法,其特征在于,所述预冻的具体操作过程包括:将温度在15min~25min内由0℃降到-30℃~-40℃,并在-30℃~-40℃条件下保温80min~120min。
3.根据权利要求2所述的去岩藻糖基化的抗Her2抗体冻干粉针剂的制备方法,其特征于,所述预冻的具体操作过程包括:将温度在20min内由0℃降到-30℃~-40℃,并在-30℃~-40℃条件下保温100min。
4.根据权利要求2或3所述的去岩藻糖基化的抗Her2抗体冻干粉针剂的制备方法,其特征在于,所述预冻的具体操作过程包括:将温度在20min内由0℃降到-35℃,并在-35℃条件下保温100min。
5.根据权利要求1所述的去岩藻糖基化的抗Her2抗体冻干粉针剂的制备方法,其特征在于,所述升华干燥的具体操作过程包括:将温度在25min内上升到-8℃~-13℃,并在-8℃~-13℃下保温35min,保持真空度15Pa;将温度在180min内上升到-3℃~-7℃,并在-3℃~-7℃下在保温900min,保持真空度10Pa;将温度在180min内上升到-2℃~2℃,并在-2℃~2℃下保温400min,保持真空度10Pa;将温度在120min内上升到3℃~8℃,并在3℃~8℃下保温180min,保持真空度10Pa。
6.根据权利要求1或5所述的去岩藻糖基化的抗Her2抗体冻干粉针剂的制备方法,其特征在于,所述升华干燥的具体操作过程包括:将温度在25min内上升到-10℃,并在-10℃下保温35min,保持真空度15Pa;将温度在180min内上升到-5℃,并在-5℃下在保温900min,保持真空度10Pa;将温度在180min内上升到0℃,并在0℃下保温400min,保持真空度10Pa;将温度在120min内上升到5℃,并在5℃下保温180min,保持真空度10Pa。
7.根据权利要求1所述的去岩藻糖基化的抗Her2抗体冻干粉针剂的制备方法,其特征在于,所述解析干燥的具体操作过程包括:将温度在30min~50min内上升到23℃~28℃,并在23℃~28℃下保温200min~300min,保持真空度5Pa~15Pa;将真空度降5Pa,继续保持100min~150min。
8.根据权利要求1所述的去岩藻糖基化的抗Her2抗体冻干粉针剂的制备方法,其特征在于,所述解析干燥的具体操作过程包括:将温度在40min内上升到23℃~28℃,并在23℃~28℃下保温240min,保持真空度10Pa;将真空度降5Pa,继续保持120min。
9.根据权利要求7或8所述的去岩藻糖基化的抗Her2抗体冻干粉针剂的制备方法,其特征在于,所述解析干燥的具体操作过程包括:将温度在40min内上升到25℃,并在25℃下保温240min,保持真空度10Pa;将真空度降5Pa,继续保持120min。
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