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generic drug B and original drug in 4 different dissolution media at 90 min were 92%,87%,90% [0.6% SDS hydrochloric acid
        solution(pH=1.2)];94%,94%,90% [0.6% SDS acetate buffer solution(pH=4.5)];95%,95%,91% [0.6% SDS phosphate
        buffer solution(pH 6.8)];97%,98%,95%(0.6% SDS water solution). The similarity factors of generic drug A,generic drug B
        and original drug in 4 kinds of different dissolution media were 66 and 81,71 and 69,71 and 61,59 and 39. In the first 15 min,the
        difference of dissolution rate of split portions and whole tablets were -3%-13%,-2%-24% and -3%-7% for generic drug A,
        generic drug B and original drug,respectively. RSDs of accumulative dissolution rate of split portions and whole tablets were
        6%-14% and 2%-9% for generic drug A(n=12),4%-10% and 1%-8% for generic drug B(n=12)and 2%-7% and 2%-8%
        for original drug. The appearance of the original drug was fusiform,and the notch was deep;the shape of the generic drug was
        different from each other,and the notch of the generic drug was significantly shallower than that of original drug. The friability,
        the loss of mass of the split portions for generic drug A and generic drug B,original drug were 0.62%and 0.67%,0.12% and
        0.11%,0.08% and 0.05%. The domestic raw materials possessed irregular lumps and debris,while the raw materials produced by
        original drug enterprises possessed regular flat cuboids and regular strips with little debris;but X-ray diffraction peaks of them were
        basically the same. CONCLUSIONS:The dissolution behavior of generic drug A in 4 medium is consistent with that of the original
        drug;dissolution behavior of generic drug B in water containing 0.6%SDS is different from that of the original drug;there is no
        significant change in the homogeneity of the original drug before and after splitting,but the homogeneity of the generic drug A and
        B after splitting is lower than that of the whole tablet;the fragility of generic drugs and loss of mass of split portions are higher
        than those of the original drugs;two kinds of raw material have the same crystal form but different crystal morphology.
        KEYWORDS     Oxcarbazepine;Dissolution behavior;Scored tablets;Generic drug;Original drug;Consistency evaluation;HPLC


            功能性刻痕片剂(可分割的刻痕片)是一种带有一                          行为;同时,本研究还比较了全片外观,半片制剂的分割质
        道或多道刻痕,以便于进行剂量分割的片剂 。其具有                            量损失、脆碎度及原料药的晶型、晶体形貌,旨在评价仿制
                                               [1]
        灵活调整药物剂量、弥补儿童或老年用药规格不足、降                            药与原研药的一致性,并为仿制药的生产工艺和内在质
        低患者用药成本的特点,但存在分剂量不均匀                     [2-3] 、分割  量提升提供参考,亦为刻痕片的质量控制提供依据。
                                           [4]
        时出现粉末或碎片导致药量损失的现象 。分剂量不均                            1 材料
        匀会影响药物的疗效或引发不良反应,特别是对于治疗                            1.1  仪器
        窗窄的药物      [5-6] 。9.0版《欧洲药典》 、41版《美国药典》        [8]      1260 型 HPLC 仪,配备 G7111A 型四元泵、G7129A
                                      [7]
        均有相应的关于刻痕片的技术要求和规范,而《中国药                            型自动进样器、G7116A 型柱温箱、G71157 型二极管阵
        典》暂未收录相关内容。美国 FDA 于 2013 年发布了相                      列检测器(美国Agilent公司);AT型全自动溶出仪(瑞士
        关技术指南 ,进一步对刻痕片剂进行了管理和规范。                            Sotax 公司);FAVD-25 型真空脱气仪(上海富斯科分析
                   [9]
        我国国家药品监督管理局药品审评中心(CDE)网站于                           仪器有限公司);PB-21型酸度计、CP225D型十万分之一
        2019年发布了《仿制口服片剂功能性刻痕设计和研究的                          电子天平(德国Sartorious公司);H1850R型高速冷冻离
                 [1]
        一般要求》 ,要求仿制药的功能性刻痕应该与原研药保                           心机(湖南长沙湘仪离心机仪器公司);D8 Advance型X
        持一致,且须对分割后的制剂单元进行质量差异或含量                            射线衍射仪(德国 Bruker 公司);JSM-6390 型扫描电子
        均匀度、分割质量损失、脆碎度、溶出度等进行考察。功                           显微镜(日本 JEOL 公司);FT-2000 型脆碎度检测仪(天
        能性刻痕片作为口服固体制剂,溶出度是其关键质控属                            津市矽新科技有限公司);KQ-500DE型数控超声波清洗
        性之一 。采用溶出曲线测定原研药与仿制药的溶出                             器(昆山市超声仪器有限公司)。
               [10]
        度,既可为仿制药研发过程中处方的筛选提供参考,又                            1.2  药品与试剂
        可作为仿制药质量与疗效一致性评价的重要手段 。                                 奥卡西平对照品(中国食品药品检定研究院,批号:
                                                  [11]
            奥卡西平(Oxcarbazepine)是一种新型抗癫痫药物,                  100657-201102,纯度:99.8%);奥卡西平刻痕片原研药
        为卡马西平的 10-酮基衍生物,主要通过其活性代谢产                         (瑞士 Novartis 公司,以下简称“企业 R”,规格:300 mg,
        物10-单羟基代谢物发挥作用,具有耐受性好、毒副作用                          批号:TR228、T2506、TU899);仿制药A(国内A企业,规
        小、药物间相互作用少等特点,已成为治疗成人及儿童                            格:300 mg,批号:180411、180109、190103);仿制药 B
        癫痫局部发作或全身强直性阵挛发作的一线药物 。                            (国内 B 企业,规格:300 mg,批号:181109、190101、
                                                     [12]
        奥卡西平刻痕片原研药可掰分为两个半片,极大地弥补                            171003);奥卡西平原料药 1(国内企业 1,批号:180602,
                                [13]
        了儿童用药规格不足的情况 。                                      纯度:99.4%);奥卡西平原料药 2(国内企业 2,批号:
            本研究通过高效液相色谱法(HPLC)结合相似因子                        170620,纯度:99.2%);奥卡西平原料药3[北京诺华制药
        法比较了不同溶出介质中奥卡西平仿制药与原研药的                             有限公司(即原研药企业中国分公司)赠送,批号:
        溶出曲线,并对掰分后的半片制剂进行了溶出曲线考                             181105,纯度:99.6%];十二烷基硫酸钠(SDS)、乙腈均
        察,以剖析奥卡西平刻痕片整片制剂与半片制剂的溶出                            为色谱纯,其余试剂均为分析纯,水为超纯水。


        ·1464  ·  China Pharmacy 2020 Vol. 31 No. 12                                中国药房    2020年第31卷第12期
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