Brian Stephens, a life sciences consultant for ABB INC, addressed the Interphex 2008 attendees this morning in a discussion about process analytical technology (PAT). He threw out the “learn, predict, control” phrase industry has latched onto as an easier way to define PAT, which is essentially a tool or system for implementing QbD that involves identifying critical quality attributes (CQAs) and critical process parameters (CPPs), and then figuring out the best way to measure the CQAs in order to control the CPPs.
Stephens went on to describe how some 60 FDA investigators are undergoing PAT training this year so they can be better prepared for inspections (and ideally avoid a repeat of the validation inspection process of the 1980s and early 1990s when computer validation came into play). (I find it quite strange, by the way, that FDA has been rolling out and pushing PAT initiatives while still learning about it themselves. Seems like the order of things here is somewhat backward.) Read more »