Bioequivalence and Bioavailability Forum • Sample size for NTI using FDA method by excel macro

Sample size for NTI using FDA method by excel macro [Power / Sample Size]

posted by d_labes – Berlin, Germany, 2020-10-16 13:09 (1680 d 13:22 ago) – Posting: # 22013
Views: 5,696

Dear dshah!

❝ I would like to know about any available excel tool for sample size calculation for NTI by FDA method.

Sorry but to my knowledge there is no excel tool for sample size calculation for NTI by FDA method.
And I'm quite sure that such a tool is never available.
The FDA method for NTID's is a framework. You have to rely on simulations to do power calculations / sample size estimation. It is hard to imagine that this may be done within excel :no:

❝ I am asking this as many times- tools like R, Gpower etc. requires installation of software which is not permissible by many firms/organization.

Shit happens :crying:

.
Try to convince your boss / IT department that you absolutely need R and the package PowerTOST to do your job. At least if it comes to sample size estimation.

—
Regards,

Detlew

Complete thread:

Sample size for NTI using FDA method by excel macro dshah 2020-10-16 06:20 [Power / Sample Size]
- Sample size for NTI using FDA method by excel macrod_labes 2020-10-16 11:09
  - Sample size for NTI using FDA method by excel macro dshah 2020-10-16 12:11
- Simulating studies in Excel not possible Helmut 2020-10-16 11:11
  - Simulating studies in Excel not possible dshah 2020-10-16 12:12
    - Simulating studies in Excel not possible martin 2020-10-16 12:52
      - Simulating studies in Excel not possible dshah 2020-10-20 06:59
  - may be possible -> Simulating studies in Excel not possible yjlee168 2020-10-17 08:09
    - Simulating studies in Excel possible but slow? Helmut 2020-10-17 11:30
      - Have you upgraded to R v4.0.3 yet? yjlee168 2020-10-19 02:16
        
        Run on R v4.0.3 Helmut 2020-10-19 12:12