Bioequivalence and Bioavailability Forum • Slowly going OT: BE study simulations

Slowly going OT: BE study simulations [Regulatives / Guidelines]

posted by Ohlbe – France, 2016-02-13 14:10 (3434 d 21:39 ago) – Posting: # 15988
Views: 30,628
(edited on 2016-02-14 00:56)

Dear Helmut,

❝ Agree. See this stupid example (slides 46–49) from the early days of LC/MS-MS (no stable isotope IS and hit by the matrix effect). Slide 49 compares results of the first 12 (of 24) subjects obtained by the lousy LC/MS-MS method with stable isotope IS GC/MS. Does it matter? No.

Well, cough... In your example there is not much difference for AUC, agreed. But Cmax ? A difference of 4 points in the point estimate, closer to 1 with the lousy method, with 90 % CI of 78.6 - 99.8 % with the lousy method against 71.1 - 96.4 % with the good method... In this specific example I would say that yes, it could have mattered, and made a difference between a failing study and a passing study !

—
Regards
Ohlbe

Complete thread:

Baseline correction vs non-baseline correction jag009 2015-09-15 20:29 [Regulatives / Guidelines]
- Baseline correction vs non-baseline correction Lucas 2015-09-16 14:16
  - Baseline correction vs non-baseline correction Relaxation 2015-09-18 10:25
- Baseline correction or supra-therapeutic dose Helmut 2015-09-16 15:16
  - Baseline correction or supra-therapeutic dose Ohlbe 2015-09-16 17:55
    - Baseline profile prior to each period? Helmut 2015-09-16 18:15
    - Baseline correction examples Helmut 2015-09-17 15:44
      - Baseline correction examples Lucas 2015-09-18 14:19
        
        Baseline correction examples Helmut 2015-09-18 17:28
        
        Baseline correction examples Mauricio Sampaio 2016-02-07 03:05
        
        Baseline correction examples Lucas 2016-02-10 11:48
        
        Postmenopausal women Helmut 2016-02-10 12:26
        Baseline correction examples Mauricio Sampaio 2016-02-11 01:38
        Baseline correction examples Dr_Dan 2016-02-11 09:22
        
        Postmenopausal women Mauricio Sampaio 2016-02-12 03:24
        
        Postmenopausal women Dr_Dan 2016-02-15 17:45
        
        Baseline correction examples BEQool 2024-11-11 07:34
        
        Baseline correction GeoMean and Median mittyri 2024-11-11 11:20
        
        Geometric mean? Helmut 2024-11-11 14:53
        
        Geometric mean? BEQool 2024-11-14 08:19
        
        Geometric mean ≈ MLE of median Helmut 2024-11-14 09:54
        
        Geometric mean ≈ MLE of median Mahmoud 2024-11-15 11:26
        
        Bias? Helmut 2024-11-16 08:43
        
        Bias? Mahmoud 2024-11-16 11:12
    - Baseline; another example Helmut 2015-09-18 17:16
      - Baseline; another example nobody 2016-02-12 09:10
        
        Baseline; another example Helmut 2016-02-12 13:37
        
        Baseline; another example nobody 2016-02-12 14:08
        
        Slowly going OT: BE study simulations Helmut 2016-02-12 15:47
        
        Slowly going OT: BE study simulations nobody 2016-02-12 16:15
        
        Religious debate Helmut 2016-02-12 17:04
        
        Religious debate nobody 2016-02-12 17:26
        
        Religious debate ElMaestro 2016-02-13 12:53
        
        Religious debate nobody 2016-02-14 15:23
        
        Slowly going OT: BE study simulationsOhlbe 2016-02-13 13:10
        
        Slowly going OT: BE study simulations Helmut 2016-02-13 15:02
        
        Slowly going OT: BE study simulations lizhao 2016-02-25 17:31
        
        Business as usual Helmut 2016-02-25 17:44
        
        Business as usual lizhao 2016-02-25 17:59