As a general rule, product grouping strategies are not used for newer drugs requiring an NDA. The rationale for this is that companies want their cleaning validation to be as “clean” as possible for any new product.Grouping strategies will be more used for older products in order to bring a facility under compliance as far as cleaning validation is concerned. Some companies will choose, as time allows, to perform an individual cleaning validation on each individual product in a group following the initial validation of the group.
As a general rule, product grouping strategies are not used for newer drugs requiring an NDA. The rationale for this is that companies want their cleaning validation to be as “clean” as possible for any new product.