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Back to the forum  Query: 2017-12-12 22:51 CET (UTC+1h)
 

Highly Variable Drug BE Justification [Regulatives / Guidelines]

posted by ElMaestro - Denmark, 2017-03-20 06:55  - Posting: # 17167
Views: 4,269

Hi jag009,

» What if one conducted pilot studies and found that the ISCV is like 28/29%? My concensus still would be to proceed with RSABE approach since the it is a mixed approach which allows both RSABE(if Ref SD<0.294) and ABE analysis(if Ref SD>0.294)

That's valid, but if you are not really sure if you are just "borderline" then the additional overhead associated with the replicated design may not be worth it. You find an intra-CVR of 31%, and you scale the limits a wee bit etc. But the price you paid for this moderate scaling option could be much higher than you'd be paying for a conventional 222BE trial with a few extra volunteers. Would be interesting to discuss an objective function here :-)

This isn' the answer, but just a view.

I could be wrong, but…


Best regards,
ElMaestro

A potentially biased estimator may be a relevant estimator. The case of REML speaks volumes.

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