long half life drug bioequivalence study design [Design Issues]

posted by ssussu – China, 2017-08-16 13:45 (3231 d 01:24 ago) – Posting: # 17690
Views: 11,926

Dear all,
I have questions on the BE study design of long half life drug, please kindly give me some advice. According to FDA GL:
You can use Cmax and a suitably truncated AUC to characterize peak and total drug exposure, respectively. For drugs that demonstrate low intrasubject variability in distribution and clearance, you can use an AUC truncated at 72 hours (AUC0-72 hr) in place of AUC0–t or AUC0–inf.
The question is
Should I just need to design the sampling time to 72hr or need to longer than 72hr?
If I just sampling for 72hr, how can I prove the drug is a long half life drug?

Best regards!

Complete thread:

UA Flag
Activity
 Admin contact
23,655 posts in 4,993 threads, 1,571 registered users;
144 visitors (0 registered, 144 guests [including 36 identified bots]).
Forum time: 15:10 CEST (Europe/Vienna)

Science is simply common sense at its best that is,
rigidly accurate in observation, and
merciless to fallacy in logic.    Thomas Henry Huxley

The Bioequivalence and Bioavailability Forum is hosted by
BEBAC Ing. Helmut Schütz
HTML5