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Parameter | Traditional | Product QbD | AQbD |
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Approach | Based on empirical approach | Based on systematic approach | Based on systematic approach |
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Quality | Quality is assured by end product testing | Quality is built in the product and process by design and scientific approach | Robustness and reproducibility of the method built in method development stage |
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FDA submission | Including only data for submission | Submission with product knowledge and process understanding | Submission with product knowledge and assuring by analytical target profile |
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Specifications | Specifications are based on batch history | Specifications are based on product performance requirements | Based on method performance to ATP criteria |
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Process | Process is frozen and discourages changes | Flexible process with design space allows continuous improvement | Method flexibility with MODR and allowing continuous improvement |
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Targeted response | Focusing on reproducibility, ignoring variation | Focusing on robustness which understands control variation | Focus on robust and cost effective method |
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Advantage | Limited and simple | It is expended process analytical technology (PAT) tool that replaces the need for end product testing | Replacing the need of revalidation and minimizing OOT and OOS |
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