durga09
☆    

India,
2023-09-08 12:21
(18 d 19:27 ago)

Posting: # 23712
Views: 389
 

 Tmax 90% confidence interval [Regulatives / Guidelines]

Dear All,

Could anyone please help me with example or article or program, on how to calculate below point as per Ibuprofen EMA guideline.

1) 90% confidence interval: Comparable median (≤ 20% difference, 80.00–125.00%) and range for Tmax.

Regards,
Durga
Achievwin
★    

US,
2023-09-09 14:44
(17 d 17:03 ago)

@ durga09
Posting: # 23714
Views: 319
 

 Tmax 90% confidence interval

❝ Could anyone please help me with example or article or program, on how to calculate below point as per Ibuprofen EMA guideline.


❝ 1) 90% confidence interval: Comparable median (≤ 20% difference, 80.00–125.00%) and range for Tmax.



Helmut responded to your question awhile ago, the following paper discuss these details.

ADJUSTING PAIRWISE NONPARAMETRIC EQUIVALENCE HYPOTHESIS TESTS AND CONFIDENCE INTERVALS FOR PERIOD EFFECTS IN 3×3 CROSSOVER TRIALS

Luc Duchateau, Paul Janssen, Roel Straetemans & Christian Otoul, Journal of Biopharmaceutical Statistics Volume 12, 2002 - Issue 2 Pages 149-160 | Received 01 Mar 2002, Accepted 01 May 2002, Published online: 05 Oct 2011 (what is interesting is that this paper was accepted in 2002 and published in 2011 - like some of our harmonization guidance :-D)

Coming to your question there is a sas code on how to non parametric estimates and calculate difference and confidence, (not sure how to attach the file). Before all this was known we did parwaise rank order comparison followed by Wilcoxon t-test for tmax, t1/2 etc.

Hope this helps and Best

AchievWin
mittyri
★★  

Russia,
2023-09-10 21:55
(16 d 09:52 ago)

@ Achievwin
Posting: # 23715
Views: 264
 

 link to the post of BEBAC golden collection

Dear AchievWin, Dear Durga,

I would point to the classical post (I'd say golden collection of this forum) provided by Detlew and Helmut here.
It is 13 years old, but it is still the best. And the article mentioned there is 33 years old and also no one provided something better:-D)
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