Bioequivalence and Bioavailability Forum • [Opinion] Should the 90% CI for GMR be required to encompass 1

[Opinion] Should the 90% CI for GMR be required to encompass 1 [RSABE / ABEL]

posted by bebac_fan – US, 2018-03-28 23:59 (2601 d 05:00 ago) – Posting: # 18609
Views: 11,850

Hi John,

Thanks for your response. Let me see if I can clear this up.

❝ Are you trying to say that a large enough sample size can force a 100 mg product and a 112 mg product to become bioequivalent because the BE window has a ± 20% around 100%?

Kind of. I am saying that a large enough sample size can force a test product with e.g. 89% relative BA (e.g. 100mg/112mg) relative to RLD to pass. The difference between 100 and 112mg is clinically significant for this product. I am wondering if adding the condition I talked about from the beginning would help.

I was using the 100/112/125 example rather than talking about relative F to try to elucidate the clinical scenario, which I am doing a poor job of.

❝ Please don't forget that there is a criteria on T/R total assay/potency to be within 5%. Your 110mg and 112 mg has >5% potency and that alone invalidates your example.

I haven't. Thanks!

Cheers,
BF

Complete thread:

[Opinion] Should the 90% CI for GMR be required to encompass 1 bebac_fan 2018-03-28 18:43 [RSABE / ABEL]
- [Opinion] Should the 90% CI for GMR be required to encompass 1 ElMaestro 2018-03-28 19:07
  - [Opinion] Should the 90% CI for GMR be required to encompass 1 bebac_fan 2018-03-28 19:23
    - [Opinion] Should the 90% CI for GMR be required to encompass 1 ElMaestro 2018-03-28 19:44
      - [Opinion] Should the 90% CI for GMR be required to encompass 1 bebac_fan 2018-03-28 20:05
        
        [Opinion] Should the 90% CI for GMR be required to encompass 1 jag009 2018-03-28 21:25
        
        [Opinion] Should the 90% CI for GMR be required to encompass 1bebac_fan 2018-03-28 21:59
        
        [Opinion] Should the 90% CI for GMR be required to encompass 1 ElMaestro 2018-03-28 23:03
        
        [Opinion] Should the 90% CI for GMR be required to encompass 1 bebac_fan 2018-03-28 23:57
        
        Black Swan again mittyri 2018-04-05 17:57
- [Opinion] Should the 90% CI for GMR be required to encompass 1 Helmut 2018-03-28 23:57
  - [Opinion] Should the 90% CI for GMR be required to encompass 1 bebac_fan 2018-03-29 13:46
  - [Opinion] Should the 90% CI for GMR be required to encompass 1 jag009 2018-03-29 16:52
    - [Opinion] Should the 90% CI for GMR be required to encompass 1 bebac_fan 2018-03-29 16:57
      - [Opinion] Should the 90% CI for GMR be required to encompass 1 jag009 2018-03-29 19:55
        
        [Opinion] Should the 90% CI for GMR be required to encompass 1 bebac_fan 2018-03-29 20:30
        
        [Opinion] Should the 90% CI for GMR be required to encompass 1 jag009 2018-03-29 21:22
        
        Paper & Presentations Helmut 2018-03-30 01:33
        
        Donald Schuirmann’s opinion Helmut 2018-04-10 14:41