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Hi,
As per the section 2.1 of finalised Health Canada guidelines titled "Comparative
Bioavailability Standards: Formulations Used for Systemic Effects (Effective
Date: 2012/05/22)"
Quote from the guideline:
In exceptional cases where a reference batch with a measured drug content
differing less than 5% from the test product cannot be found, potency correction
may be accepted. If potency correction is to be used, this intention should be
pre-specified in the protocol and justified. The results from the potency assay
of the test and reference products should be submitted. In such cases, the
applicable bioequivalence standards should be met on both potency-corrected and
uncorrected data.
When the potency of test and reference products are differing by more than 10 to
15% (or even more), is it possible to meet the bioequivalence standards on both
corrected and uncorrected data?
Regards,
Debbie.
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