3 treatments with two-at-a-time approach [Power / Sample Size]

posted by chrisk – 2022-08-01 09:03 (627 d 13:39 ago) – Posting: # 23195
Views: 2,481

Dear all,
First, thank you to the authors of PowerTOST and the maintainers of this wonderful forum.

I have a question about how the sample size is calculated for 1 test (A) and 2 references (B and C) based on 3x6x3 design. I am interested in showing the BE based on both A/C and B/C. If I were to use the two-at-a-time analysis approach, can I use the following function to get the sample size?

sampleN.TOST(CV = 0.2, design = "2x2")

Sample size (total)
 n     power
20   0.834680 


Based on this output, I am to assign 20/6 ~ 4 participants in each of the 6 sequences. I am hoping my reasoning is correct :-)

Also, I was unable to find any reference for the sample size calculation and wondered if anyone can kindly point me to the right direction.

Thank you!


Edit: Category changed; see also this post #1[Helmut]

Complete thread:

UA Flag
Activity
 Admin contact
22,988 posts in 4,825 threads, 1,661 registered users;
93 visitors (0 registered, 93 guests [including 5 identified bots]).
Forum time: 22:42 CEST (Europe/Vienna)

The only way to comprehend what mathematicians mean by Infinity
is to contemplate the extent of human stupidity.    Voltaire

The Bioequivalence and Bioavailability Forum is hosted by
BEBAC Ing. Helmut Schütz
HTML5