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Chinese Journal of Clinical Pharmacology and Therapeutics ›› 2018, Vol. 23 ›› Issue (9): 1031-1039.doi: 10.12092/j.issn.1009-2501.2018.09.011

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Dose selection of indacaterol for marketing approval: a FDA story in pharmacometrics review

YIN Fang1, WANG Yuzhu2, ZHENG Qingshan1   

  1. 1 Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; 2 Center for Drug Evaluation, National Medical Products Administration, Beijing 100022, China
  • Received:2018-09-10 Revised:2018-07-13 Online:2018-09-26 Published:2018-09-26

Abstract:

The safety of long-acting β2 agonist (LABA) has always been controversial, and the dose selection of this type of drugs becomes very important issue. Pharmacometrics is a key evaluation tool for the dose selection. In the process of review of indacaterol for marketing approval by US FDA, the pharmacometric scientists from FDA and an enterprise, respectively conduct modeling & simulation based the data from the same trials, and they found different doses for marketing with refuting each other and debating in academic journals, even the journal published the commentary. Apparently, FDA's model is more persuasive. This is an excellent case of pharmacometrics in the new drug review of dose for marketing, which fully demonstrates the advantages of pharmacometrics, that is, when the head-to-head study is lacking, many trial data are integrated, and the final marketing dose is determined by modeling and simulation. At the same time, pharmacometric characteristics, such as multidisciplinary, highly professional, complex analytical process and the requirements of experience, are also showed. Be boldly hypothesized but must be carefully verified.

Key words: pharmacometrics, modeling &, simulation, dose selection, long acting beta-agonists

CLC Number: