How to understand what is guilty? [Study As­sess­ment]

posted by DavidManteigas – Portugal, 2016-08-08 13:18 (3606 d 14:55 ago) – Posting: # 16541
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I usually look at the individual test to reference ratios. They can be very informative regarding the variability of the study drug and to understand what has gone wrong. For instance, if almost all your TR ratios fall below 1 that may indicate that the test drug absorption is in fact lower than the reference product; on the other side, if they're equally distributed above and below 1 - even if some of the ratios are "outliers" - you have a strong evidence of a study really underpowered and possibly an highly variable drug. Post-hoc power calculations may also be useful. In my opinion, using this data is more informative than looking at the CI alone.

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