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Re: p3analyze post# 5658

Saturday, 04/12/2008 6:35:44 PM

Saturday, April 12, 2008 6:35:44 PM

Post# of 12660
P3, re very large trials.

This has been a harping point of BSR David, and I quite agree.

If you need to run a trial of X thousand to get stat sig, there obviously is a questionable benifit at best.

But if you have n=100 and p=.02 you likely have a much better treatment effect.

There is a real fundlemental problem here in the FDA law/regs. The drug must be proved effective, but the same standard of proof holds regardless of how effective it is.

Drug 1: Another NSAID that shows pain relief N=2000 , p=.05

Drug 2: Improves OS (HR=1.8) in stage 3 NSLC N=100, p=.06

Which one should be on market?

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