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发表于 2021-10-27 17:07:27
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药品GMP指南 (2010版)
10.2.3湿热灭菌确认与验证
空载热分布测试目的:确认灭菌室内的温度均匀性和灭菌介质的稳定性,测定灭菌腔内不同位置的温差状况,确定可能存在的冷点。
PDA TR48 Moist Heat Sterilizer Systems-Design, Commissioning, Operation, Qualification and Maintenance (2010)
5.2.2.1 Empty Chamber Temperature Distribution
Empty chamber temperature distribution studies (temperature mapping) are intended to verify uniform distribution of the heating medium across the load zone. These studies may be used to adjust the bleed valves to obtain the desired chamber uniformity, and as a perform comparison tool throughout the life cycle of the sterilizer.
从上述关于空载热分布目的描述,再确认时空载热分布也是有必要的。
关于周期性确认频率,按照ISPE Baseline Guide Vol 5 Commissioning and Qualification (2019) Chapter 9 Periodic Review
灭菌柜系统划分为定期评审类别1,属于复杂系统,其质量关键功能遵从法规指南或标准操作规程,日常再验证已确立(所有灭菌程序每年)。
中国或其他地区国家法规指南依据如下:
中国GMP(2010年修订)附录1"无菌药品" 第六十四条 应当定期对灭菌工艺的有效性进行再验证(每年至少一次)。设备重大变更后,须进行再验证。应当保存再验证记录。
EudraLex Volume 4 – Guidelines for Good Manufacturing Practices for Medicinal Products for Human and Veterinary Use, Annex 1: Manufacture of Sterile Medicinal Products
Sterilisation中"The validity of the process should be verified at scheduled intervals, at least annually, and whenever significant modifications have been made to the equipment. Records should be kept of the results."
PDA TR01 Validation of Moist Heat Sterilization Process-Cycle Design, Development, Qualification and Ongoing Control (Revised 2007)
6.4 Periodic Requalification
Requalification should be performed on a regular basis (typically every 12 months) to ensure there has not been an undetected change in product or process.
综上,对于无菌产品而言,灭菌柜是需要进行年度再验证的。
以下属于建议:
再确认测试必须包括在空气排出和/或热量方面表现最差的物品(例如,最长平衡或最低Fo、加热时间挑战等)。
对于相同循环处理的多装载,测试装载可进行轮换选择:
1)测试装载的选择需要基于科学和风险考虑,且在工厂的再验证规程中进行描述;
2)选择的装载模式必须包含过往证明为与空气排出和热质量有关的最差情况物品;
3)如果装载分布数据不可用于支持最差情况的确立,则任一装载模式验证的最大允许间隔不得超过2年。
首次灭菌柜验证,连续三次成功测试;设备没有发生重大变更的情况下,再确认可做一次成功测试(如失败,偏差调查后,连续三次成功测试)。
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