For prospective and concurrent validation, three consecutive successful production batches should be used as a guide, but there may be situations where additional process runs are warranted to prove consistency of the process (e.g., complex API processes or API processes with prolonged completion times).〔【出典】ICHガイドライン 〕
The setting of specifications for drug substance and drug product is part of an overall control strategy which includes control of raw materials and excipients, in-process testing, process evaluation or validation, adherence to Good Manufacturing Practices, stability testing, and testing for consistency of lots.〔【出典】ICHガイドライン 〕
For retrospective validation, generally data from ten to thirty consecutive batches should be examined to assess process consistency, but fewer batches can be examined if justified.〔【出典】ICHガイドライン 〕
Batches selected for retrospective validation should be representative of all batches made during the review period, including any batches that failed to meet specifications, and should be sufficient in number to demonstrate process consistency.〔【出典】ICHガイドライン 〕
増殖恒常性
reproductive integrity
工程の恒常性の確認を目的として、定期的に原薬の品質照査を実施すること。
Regular quality reviews of APIs should be conducted with the objective of verifying the consistency of the process.〔【出典】ICHガイドライン 〕
形態恒常性変化
morphostatic changes《医》
承認申請時には、製造工程の恒常性を評価するのに十分なだけのデータが得られていることはあまりない。
At the time of filing it is unlikely that sufficient data will be available to assess process consistency.〔【出典】ICHガイドライン 〕
For approved products, an appropriate number of post-change batches should be analysed to demonstrate consistent performance of the process.〔【出典】ICHガイドライン 〕
Segments of the expression construct should be analysed using nucleic acid techniques in conjunction with other tests performed on the purified recombinant protein for assuring the quality and consistency of the final product.〔【出典】ICHガイドライン 〕