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Int J Pharm ; 491(1-2): 144-51, 2015 Aug 01.
Article in English | MEDLINE | ID: mdl-26116015

ABSTRACT

Fusafungine, a mixture of the cyclic hexadepsipeptides enniatins, is currently on the market for the treatment of upper respiratory tract diseases because of its bacteriostatic and anti-inflammatory effects. In this study, a quality-by-design risk assessment was performed with two objectives: (i) investigate whether enniatins are able to permeate the mucosa and reach blood circulation, as the summary of product characteristics indicates this is not the case, and if so, to quantify their transmucosal kinetics and (ii) study the influence of excipient concentration variability on mucosal permeation. First, the concentration of the two main excipients isopropyl myristate and ethanol, known penetration enhancers, in several marketed samples was determined using GC-FID. Then, the transmucosal kinetics of the enniatins were quantitatively evaluated for different dose solutions, using porcine buccal mucosa in an ex-vivo in-vitro Franz diffusion cell set-up, with UHPLC-MS/MS bioanalytics. This study demonstrated that enniatins are capable of permeating the mucosa. However, no risk of a significant different transmucosal permeability with varying excipient concentrations was detected.


Subject(s)
Depsipeptides/chemistry , Depsipeptides/metabolism , Mouth Mucosa/metabolism , Solutions/chemistry , Animals , Diffusion , Ethanol/chemistry , Excipients/chemistry , Fusarium/chemistry , Fusarium/metabolism , Kinetics , Myristates/chemistry , Permeability , Risk Assessment , Swine
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