WinNonlin IVIVC Toolkit [Dissolution / BCS / IVIVC]

posted by jag009  – NJ, 2013-07-30 18:13 (4715 d 18:19 ago) – Posting: # 11126
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Hi,

Before I proceed, just want to make sure we are on the right path.
1) Where did you get the IV or IR data to generate the impulse function for convolution/deconvolution? Was the data originated from the same 2 studies or from another source? I recall some member here (forgot his name) said that's a no no and you should use the IV data from the same study subjects.

Well your results showed that internal validation was a failure due to the poor predictability of the model so you don't have an IVIVC.

You can generate a 2 formulation IVIVC but it will be of limited use when compared to a 3 formulation IVIVC. Particularly if you want to use it for setting dissolution specification. You can't propse +/- range for your in-vitro release spec because you can't justify or support your proposal for the +ve range if your IVIVC only shows correlation to support the -ve range of the spec, or vice versa.

John

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