Rescue approaching – PowerTOST [Power / Sample Size]

posted by d_labes  – Berlin, Germany, 2016-02-23 10:08 (3770 d 16:03 ago) – Posting: # 16021
Views: 14,259

Dear lizhao,

package PowerTOST aka "Swiss army knife for lazy guys dealing with BE studies" has a function CI.RatioF() for calculating the Fieller's confidence interval for the designs "2x2" and "parallel" given estimates of the GMR, CV and CVb(between).

The theoretical background can be found in:

Hauschke et al.
"Sample Size Determination for Proving Equivalence Based on the Ratio of Two Means For Normally Distributed Data"
Statist. Med. 18, 93-105 (1999)

or

Hauschke D., Steinijans V. and Pigeot I.
"Bioequivalence Studies in Drug Development"
Chapter 10., John Wiley & Sons, Chichester (2007)


Regards,

Detlew

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