WinNonlin IVIVC Toolkit [Dissolution / BCS / IVIVC]
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
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
Complete thread:
- WinNonlin IVIVC Toolkit Anu 2013-07-26 12:33
- WinNonlin IVIVC Toolkit jag009 2013-07-26 15:31
- WinNonlin IVIVC Toolkit Anu 2013-07-29 12:21
- WinNonlin IVIVC Toolkitjag009 2013-07-30 16:13
- WinNonlin IVIVC Toolkit Anu 2013-08-02 08:33
- WinNonlin IVIVC Toolkitjag009 2013-07-30 16:13
- WinNonlin IVIVC Toolkit Anu 2013-07-29 12:21
- WinNonlin IVIVC Toolkit jag009 2013-07-26 15:31
