Lag time in WinNonlin - bug or feature? [Software]
❝ I'm also a little confused about the results that Helmut quoted above.

❝ Running that same data in 5.2.1 I get the result of 1 for Tlag in the third group which agrees with the definition in the help file. I don't recall this function being changed for some versions in WNL so is there a typo in your table […]
Oops, checked it again: you are right!
❝ […] so compartmental modelling is probably going to be more useful if you need to define this more 'precisely'.
Yes, but
- PK modeling is not acceptable in the field of BE from a regulatory point of view.
- In real life datasets absorption regularily is difficult to model. Quite often k01 is very inprecise; you have to play around with constraints (WinNonlin’s terminology: bounds) to get a ‘resonable’ value of tlag…
❝ I concur it would be useful for WNL to 'intrinsically' recognise BLQs […]
Yes, please!
❝ […] the appropriate process is currently to recode non-numeric values first using (Tools > Status Codes).
An often overlooked feature…

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Helmut Schütz
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Science Quotes
Complete thread:
- Lag time in WinNonlin - bug or feature? Helmut 2008-05-26 15:26
- Lag time in WinNonlin - bug or feature? d_labes 2008-05-29 16:47
- WinNonlin <--> Kinetica... / Survey Helmut 2008-05-29 20:03
- Tlag d_labes 2008-05-30 08:12
- First time lag time d_labes 2009-02-02 12:48
- First time lag time Helmut 2009-02-02 13:08
- lag time paper d_labes 2009-02-02 13:42
- First time lag time Helmut 2009-02-02 13:08
- Lag time in WinNonlin - bug or feature? SDavis 2009-02-04 12:49
- Lag time in WinNonlin - bug or feature?Helmut 2009-02-04 13:05
- WinNonlin <--> Kinetica... / Survey Helmut 2008-05-29 20:03
- Lag time in WinNonlin - bug or feature? d_labes 2008-05-29 16:47