Multiphasic MR ≠ DR [BE/BA News]

posted by Helmut Homepage – Vienna, Austria, 2012-03-09 13:18 (4811 d 16:52 ago) – Posting: # 8241
Views: 22,587

Dear Luv!

❝ Does that mean that the same would be applicable to Dexlansoprazole DR capsules as well???


No. This is a delayed release formulation.

❝ What about varying rate of gastric emptying??

❝ We have done a few studies on the said molecule and the first peak comes at 3 hr (range 30 min to 5 hrs and second at 6 hrs (3-8 hrs) and the main reason was varying gastric emptying??


Not uncommon for PPIs. Sometimes physiology plays havoc with formulations.

❝ Then what should be the cut off time????

❝ You fix any cut off time and you will surely fail for partial AUC!!!!


No cut-off, no pAUCs. See the guidance – only conventional FDA's metrics: AUC0-t, AUC0-∞, Cmax. If you are able to show high variability in a replicate design study you are allowed to scale (both AUCs and Cmax).
AFAIK FDA has issued only two product specific guidances for “pAUC BE Metrics for Multiphasic MR Formulations”: zolpidem ER tablets and methylphenidate ER capsules.

❝ Life of a generic scientist is getting tougher day by day!!!!!


Well, I consider myself an ‘original scientist’. ;-)

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