A biorelevant in vitro release/permeation system for oral transmucosal dosage forms

作者：Delvadia Poonam R; Barr William H; Karnes H Thomas^*

来源：International Journal of Pharmaceutics, 2012, 430(1-2): 104-113.

DOI：10.1016/j.ijpharm.2012.03.050

• Oral transmucosal dosage forms
• Biorelevant in vitro release testing
• Modified USP IV flow-through apparatus
• Vertical diffusion cell
• Bidirectional transmucosal apparatus

This research describes the development and validation of a biorelevant in vitro release/permeation system to predict the in vivo performance of oral transmucosal dosage forms. The system is a biorelevant bidirectional transmucosal apparatus which allows better simulation of oral cavity physiological variables in comparison to compendial dissolution apparatuses and therefore may be a better predictor of in vivo behavior. The feasibility of the bidirectional apparatus was studied using smokeless tobacco (snus) as a model oral transmucosal product. In this research, nicotine release and permeation was investigated from commercially available snus using a modified USP IV flow-through apparatus, a commercially available vertical diffusion cell and a fabricated novel bidirectional transmucosal apparatus. The percent nicotine released/permeated was utilized as an input function for the prediction of in vivo plasma nicotine profiles by back calculation based on the Wagner-Nelson method. The prediction errors in C-max and AUC(0-infinity) with the USP IV flow-through device, vertical diffusion cell and novel apparatus were 4.03, 22.85 and 1.59 and -5.85, 5.85 and -9.27% respectively. This work demonstrated the suitability of the novel bidirectional transmucosal apparatus for predicting the in vivo behavior of oral transmucosal products.

• 出版日期2012-7-1