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 20:43 (2213 d 09:25 ago) – Posting: # 18601
Views: 11,145

Dear All -

I am a new poster, long time lurker. I am a clinical pharmacologist who is crazy (but not formally trained) about statistics.

My question involves the case where an entire GMR 90% confidence interval is outside of 100.00 (e.g. 103.00 - 110.00). For HVD with wide therapeutic index, I believe this is reasonable. But what about for a NTID with doses that differ by less than 15%?

I understand this is part of the reason that RSABE and ABEL are implemented. However, let us assume that the Swr is 22% and essentially expands reference scaling to ABE limits. Let us also assume that a 7% difference in BE is clinically significant.

In your opinion, is it reasonable to require the 90% CI for GMR to fall within 1?

Thanks,
bebac_fan

Complete thread:

[Opinion] Should the 90% CI for GMR be required to encompass 1bebac_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 1 bebac_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