CN108404121B - 一种重组人生长激素注射液及其制备方法 - Google Patents
一种重组人生长激素注射液及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种重组人生长激素注射液及其制备方法,其包含如下的组分:重组人生长激素2‑7mg/ml、胆固醇2‑7mg/ml、L‑组氨酸0‑3mg/ml、泊洛沙姆188 0‑5mg/ml、甘露醇25‑35mg/ml、甘油8‑12mg/ml及注射用水,本发明所公开的重组人生长激素注射液能显著降低注射时的疼痛感,降低注射部分不良反应的发生率,并且稳定性良好,有一定临床优势。
Description
技术领域
本发明涉及一种重组人生长激素注射液及其制备方法。
背景技术
人生长激素(hGH)是脑垂体前叶分泌的一种蛋白类激素,含有191个氨基酸残基、分子量为22KDa、有两个S-S、无糖基化修饰,是人类出生后促进生长的最重要的激素。重组人生长激素(rhGH)是利用基因工程方法将人类生长激素基因从染色体DNA链上分离出来,重组到质粒上,并用不同的表达体系表达的重组蛋白。rhGH的氨基酸含量、空间构象及序列与人生长激素完全相同,具有与人体内源性生长激素等同的生物学作用。临床上主要应用于治疗或缓解因生长激素(GH)分泌不足或缺乏而导致的儿童矮小症、组织修复、烧烫伤、成人生长激素缺乏(GHD)等。
已上市的重组人生长激素注射液与注射用重组人生长激素相比,具有减少了冻干工序,提高产品质量,缩短生产周期;使用方便;安全性好,降低使用过程中染菌的风险;剂量准确,可实现个体精准治疗等优势。但仍存在着如注射部位非常疼痛,稳定性降低等技术问题。
发明内容
本发明要解决的技术问题是提供一种注射疼痛度低,稳定性好的重组人生长激素注射液。
为解决上述技术问题,本发明公开了一种重组人生长激素注射液,其包含如下组分:重组人生长激素2-7mg/ml、胆固醇2-7mg/ml、L-组氨酸0-3mg/ml、泊洛沙姆188 0-5mg/ml、甘露醇25-35mg/ml、甘油8-12mg/ml及注射用水。优选包含如下组分:重组人生长激素3-5mg/ml、胆固醇3-5mg/ml、L-组氨酸1-2mg/ml、泊洛沙姆188 2-4mg/ml、甘露醇28-32mg/ml、甘油9-11mg/ml及注射用水。
本发明研究人员发现,在重组人生长激素注射液中加入胆固醇,意外的显著减轻了重组人生长激素注射液的注射疼痛,并降低了注射部位红肿、发硬等不良反应的发生率。并且所公开的重组人生长激素注射液具有良好的稳定性,可长期存放。
当重组人生长激素注射液中重组人生长激素与胆固醇的含量比为1:1时,技术效果更为良好。优选处方如下:重组人生长激素3.4mg/ml、胆固醇3.4mg/ml、L-组氨酸1mg/ml、泊洛沙姆188 2mg/ml、甘露醇30mg/ml、甘油10mg/ml及注射用水。
所公开的重组人生长激素注射液可采用笔式注射器用玻璃套筒包装,患者可根据自身体重设置每次用药量,剂量准确,可实现个体精准治疗,并可在其中加入苯酚作为抑菌剂,增强多次给药情况下的使用安全性。
本发明所公开的重组人生长激素注射液可采用如下步骤制备:a.称取L-组氨酸、泊洛沙姆188及甘露醇分别加注射用水搅拌,充分溶解后混合,加入适量水稀释的甘油得备用液,备用液中加入重组人生长激素原液及胆固醇,定容,得药液;b.在A级环境下,将步骤a所得药液经0.22μm微孔滤膜过滤,分装即得。
重组人生长激素注射液应用于因生长激素(GH)分泌不足或缺乏而导致的儿童矮小症的治疗或缓解及成人生长激素缺乏(GHD)替代治疗等疾病时,都需要高频次,长周期的给药,而重组人生长激素注射液注射时非常疼痛,注射部分疼痛、发麻、红肿的发生率高,严重降低了用药病人的生活质量。本发明所公开的重组人生长激素注射液,采用了添加胆固醇的特定配比的处方,经试验验证,能显著降低注射时的疼痛感,降低注射部分不良反应的发生率,并且稳定性良好,有一定临床优势。
具体实施方式
以下通过具体实施例再对本发明的上述内容作进一步的详细说明。但不应将此理解为本发明上述主题的范围仅局限于以下的实施例。在不脱离本发明上述技术思想的情况下,根据本领域普通技术知识和惯用手段做出的各种替换或变更,均应包括在本发明的范围内。
实施例1
处方:
物料组成 | 处方配比(g) |
重组人生长激素 | 0.6 |
胆固醇 | 2.1 |
泊洛沙姆188 | 1.5 |
甘露醇 | 7.5 |
甘油 | 2.4 |
注射用水水 | 定容至300ml |
制备方法:a.称取泊洛沙姆188及甘露醇分别加30ml注射用水搅拌,充分溶解后混合,加入30ml水稀释的甘油得备用液,备用液中加入重组人生长激素原液及胆固醇,定容,得药液;b.在A级环境下,将步骤a所得药液经0.22μm微孔滤膜过滤,分装至笔式注射器用玻璃套筒即得。
实施例2
处方:
物料组成 | 处方配比(g) |
重组人生长激素 | 2.1 |
胆固醇 | 0.6 |
L-组氨酸 | 0.9 |
甘露醇 | 10.5 |
甘油 | 3.6 |
注射用水 | 定容至300ml |
制备方法:a.称取L-组氨酸及甘露醇分别加20ml注射用水搅拌,充分溶解后混合,加入40ml水稀释的甘油得备用液,备用液中加入重组人生长激素原液及胆固醇,定容,得药液;b.在A级环境下,将步骤a所得药液经0.22μm微孔滤膜过滤,分装即得。
实施例3
处方:
物料组成 | 处方配比(g) |
重组人生长激素 | 1.5 |
胆固醇 | 0.9 |
L-组氨酸 | 0.3 |
泊洛沙姆188 | 0.6 |
甘露醇 | 9.6 |
甘油 | 2.7 |
注射用水 | 定容至300ml |
制备方法:a.称取L-组氨酸、泊洛沙姆188及甘露醇分别加25ml注射用水搅拌,充分溶解后混合,加入50ml水稀释的甘油得备用液,备用液中加入重组人生长激素原液及胆固醇,定容,得药液;b.在A级环境下,将步骤a所得药液经0.22μm微孔滤膜过滤,分装即得。
实施例4
处方:
制备方法:a.称取L-组氨酸、泊洛沙姆188及甘露醇分别加25ml注射用水搅拌,充分溶解后混合,加入50ml水稀释的甘油得备用液,备用液中加入重组人生长激素原液及胆固醇,定容,得药液;b.在A级环境下,将步骤a所得药液经0.22μm微孔滤膜过滤,分装至笔式注射器用玻璃套筒即得。
实施例5
处方:
物料组成 | 处方配比(g) |
重组人生长激素 | 0.9 |
胆固醇 | 0.9 |
L-组氨酸 | 0.6 |
泊洛沙姆188 | 1.2 |
甘露醇 | 8.4 |
甘油 | 2.8 |
注射用水 | 定容至300ml |
制备方法:a.称取L-组氨酸、泊洛沙姆188及甘露醇分别加25ml注射用水搅拌,充分溶解后混合,加入50ml水稀释的甘油得备用液,备用液中加入重组人生长激素原液及胆固醇,定容,得药液;b.在A级环境下,将步骤a所得药液经0.22μm微孔滤膜过滤,分装至笔式注射器用玻璃套筒即得。
实施例6
处方:
物料组成 | 处方配比(g) |
重组人生长激素 | 1.0 |
胆固醇 | 1.0 |
L-组氨酸 | 0.6 |
泊洛沙姆188 | 1.2 |
甘露醇 | 8.4 |
甘油 | 3.0 |
注射用水 | 定容至300ml |
制备方法:a.称取L-组氨酸、泊洛沙姆188及甘露醇分别加25ml注射用水搅拌,充分溶解后混合,加入50ml水稀释的甘油得备用液,备用液中加入重组人生长激素原液及胆固醇,定容,得药液;b.在A级环境下,将步骤a所得药液经0.22μm微孔滤膜过滤,分装至笔式注射器用玻璃套筒即得。
实施例7
处方:
物料组成 | 处方配比(g) |
重组人生长激素 | 1.0 |
胆固醇 | 1.0 |
L-组氨酸 | 0.3 |
泊洛沙姆188 | 0.6 |
甘露醇 | 9.0 |
甘油 | 3.0 |
注射用水 | 定容至300ml |
制备方法:a.称取L-组氨酸、泊洛沙姆188及甘露醇分别加25ml注射用水搅拌,充分溶解后混合,加入50ml水稀释的甘油得备用液,备用液中加入重组人生长激素原液及胆固醇,定容,得药液;b.在A级环境下,将步骤a所得药液经0.22μm微孔滤膜过滤,分装至笔式注射器用玻璃套筒即得。
实施例8
处方:
物料组成 | 处方配比(g) |
重组人生长激素 | 1.0 |
胆固醇 | 1.0 |
L-组氨酸 | 0.3 |
泊洛沙姆188 | 0.6 |
甘露醇 | 9.0 |
甘油 | 3.0 |
苯酚 | 0.9 |
注射用水 | 定容至300ml |
制备方法:a.称取L-组氨酸、泊洛沙姆188及甘露醇分别加25ml注射用水搅拌,充分溶解后混合,加入50ml水稀释的甘油得备用液,备用液中加入重组人生长激素原液、胆固醇及苯酚,定容,得药液;b.在A级环境下,将步骤a所得药液经0.22μm微孔滤膜过滤,分装至笔式注射器用玻璃套筒即得。
本发明以上实施例所制备的重组人生长激素的试验测试结果如下:
1)实施例所制备的重组人生长激素注射液与参比制剂1(市售重组人生长激素注射液,1.5m:5mg)及参比制剂制剂2(市售重组人生长激素注射液10mg/3ml/瓶)作为试药,以大鼠作为试验动物,进行疼痛评估。试验方式如下:每组别10只大鼠,每日以重组人生长激素计0.1mg皮下注射给药一次,连续给药7天(每日变换注射部分),每日注射时及注射15分钟后进行脸谱疼痛评分(Facial coding scales,同体积生理盐水疼痛评分为1分),总分除以观察点即得各试药组脸谱疼痛评分。7日后以Moron&Griffiths法评估动物疼痛程度。并每日观察注射部分红肿、破损的情况,记录总次数。结果显示,实施例所制备的重组人生长激素注射液的疼痛度明显低于参比制剂,具体结果如表1:
表1
试药 | 脸谱疼痛评分 | M&G疼痛程度 | 不良反应总次数 |
实施例1 | 3.8 | 轻微至中度疼痛 | 6 |
实施例2 | 2.7 | 轻微疼痛 | 5 |
实施例3 | 2.9 | 轻微疼痛 | 4 |
实施例4 | 3.3 | 轻微疼痛 | 4 |
实施例5 | 2.4 | 轻微疼痛 | 4 |
实施例6 | 2.4 | 轻微疼痛 | 3 |
实施例7 | 1.9 | 轻微疼痛 | 4 |
实施例8 | 3.1 | 轻微疼痛 | 5 |
参比制剂1 | 6.1 | 中度疼痛 | 13 |
参比制剂2 | 7.2 | 中度疼痛 | 16 |
2)实施例所制备的重组人生长激素注射液与参比制剂1(市售重组人生长激素注射液,1.5m:5mg)及参比制剂制剂2(市售重组人生长激素注射液10mg/3ml/瓶),于加速条件下(25℃60%RH)放置考察其稳定性,实施例1~8的稳定性皆较好,优于参比制剂。具体结果见下表2。
表2
Claims (8)
1.一种重组人生长激素注射液,其特征在于包含如下组分:重组人生长激素2-7mg/ml、胆固醇2-7mg/ml、L-组氨酸0-3mg/ml、泊洛沙姆188 0-5mg/ml、甘露醇25-35mg/ml、甘油8-12mg/ml及注射用水。
2.如权利要求1所述的重组人生长激素注射液,其特征在于包含如下组分:重组人生长激素3-5mg/ml、胆固醇3-5mg/ml、L-组氨酸1-2mg/ml、泊洛沙姆188 2-4mg/ml、甘露醇28-32mg/ml、甘油9-11mg/ml及注射用水。
3.如权利要求2所述的重组人生长激素注射液,其特征在于:所述重组人生长激素与胆固醇的含量比为1:1。
4.如权利要求3所述的重组人生长激素注射液,其特征在于包含如下组分:重组人生长激素3.4mg/ml、胆固醇3.4mg/ml、L-组氨酸1mg/ml、泊洛沙姆188 2mg/ml、甘露醇30mg/ml、甘油10mg/ml及注射用水。
5.如权利要求1-4任一项所述的重组人生长激素注射液,其特征在于采用笔式注射器用玻璃套筒包装。
6.如权利要求5所述的重组人生长激素注射液,其特征在于包含苯酚。
7.如权利要求6所述的重组人生长激素注射液,其特征在于,所述苯酚的含量为2-4mg/ml。
8.如权利要求1所述的重组人生长激素注射液的制备方法,其特征在于包括以下步骤:
a.称取L-组氨酸、泊洛沙姆188及甘露醇分别加注射用水搅拌,充分溶解后混合,加入适量水稀释的甘油得备用液,备用液中加入重组人生长激素原液及胆固醇,定容,得药液;
b.在A级环境下,将步骤a所得药液经0.22μm微孔滤膜过滤,分装即得。
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