Bioequivalence and Bioavailability Forum • FDA group model in R

FDA group model in R [Two-Stage / GS Designs]

posted by VStus – Poland, 2016-10-20 13:57 (1549 d 05:47 ago) – Posting: # 16745
Views: 29,375

Dear Maestro,

» I actually lost a bit track of this discussion and I am not exactly sure what the comparisons try to achieve?!?

I'm sorry for confusion. I accept that I for sure may understood this topic completely wrong. I just wanted to address Myttiry's issue of non-similar results between R's lm() and WiNonlin in assessment of the FDA group model 1 and 2 for unbalanced dataset.

I don't have access to SAS or WiNonlin, but I have some study reports assessed via SAS using FDA's group model 1 and 2. So, in regards to Point Estimates, 90% CIs, F and P values for:
FDA Group 1 Group*Treat #Treat:Group in my R output
FDA Group 2
- Treat #Drug in my R output
- Per(Group) # group:prd in my R output
- Subj(Group*Seq) # seq:subj in R
lm() provides same results as PROC GLM

If Russian Authorities require an additional assessment using a group model, R output should be ok. So as PHX, if PE and 90%CI are not calculated using FDA Group Model 1.

Regards,
VStus

Complete thread:

Potvin C in the EU Helmut 2013-04-16 17:40
- Potvin C in the EU ElMaestro 2013-04-17 02:31
  - Potvin C in the EU Helmut 2013-04-17 12:23
    - 2 Groups model FDA d_labes 2013-04-17 13:10
      - 2 Groups model FDA Helmut 2013-04-17 16:37
        
        Group effects obsolete? d_labes 2013-04-18 09:55
        
        Group effects FDA/EMA Helmut 2013-04-19 14:34
        
        Group effects FDA/EMA mittyri 2014-08-21 15:34
        
        Group effects FDA/EMA ElMaestro 2014-08-21 17:31
        
        Group effects EMA mittyri 2014-10-01 11:25
        
        Group effects EMA ElMaestro 2014-10-01 11:31
        Group effects EMA Helmut 2014-10-01 13:24
        
        Group effects EMA VStus 2016-10-06 22:06
        
        Group effects EMA ElMaestro 2016-10-07 12:45
        
        Group effects EMA mittyri 2016-10-07 15:06
        
        Fixed effects model with Group term mittyri 2016-10-09 13:27
        
        Fixed effects model: changing the F, p values mittyri 2016-10-10 18:33
        
        Fixed effects model: changing the F, p values ElMaestro 2016-10-10 20:10
        
        Fixed effects model: changing the F, p values Helmut 2016-10-11 00:17
        Holy War of type III d_labes 2016-10-11 13:17
        
        Significance of Group effect in Russia: why the type III is so 'important' mittyri 2016-10-11 15:07
        
        Fixed effects model: changing the F, p values zizou 2016-10-11 01:06
        
        FDA group model in R mittyri 2016-10-11 13:43
        
        FDA group model in R ElMaestro 2016-10-12 01:07
        FDA group model in R VStus 2016-10-17 15:32
        
        FDA group model in R ElMaestro 2016-10-17 18:58
        
        FDA group model in RVStus 2016-10-20 13:57
        
        Fixed effects model with Group term VStus 2016-10-20 13:54
        
        Group effects FDA/EMA zizou 2016-12-31 02:54
        
        Group effects FDA/EMA Helmut 2017-06-03 14:57
        
        2 Groups model FDA hiren379 2013-08-22 14:32
        
        Homework Helmut 2013-08-23 11:53