Journal
ADVANCED DRUG DELIVERY REVIEWS
Volume 142, Issue -, Pages 35-49Publisher
ELSEVIER
DOI: 10.1016/j.addr.2019.06.010
Keywords
Oral drug delivery; Lipolysis; IVIVC; Castro-intestinal digestion; Special populations; Animal models
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During the past two decades, a range of in vitro models simulating the digestion processes occurring in the stomach and small intestine have been developed to characterize lipid based drug delivery systems (LbDDSs). This review describes the presently existing range of in vitro digestion models and their use in the field of oral drug delivery. The models are evaluated in terms of their suitability to assess LbDDSs, and their ability to produce in vitro - in vivo correlations (IVIVCs). While the pH-stat lipolysis model is by far the most commonly utilized in vitro digestion model in relation to characterizing LbDDSs, a series of recent studies have shown a lack of IVIVCs limiting its future use. Presently, no single in vitro digestion model exists which is able to predict the in vivo performance of various LbDDSs. However, recent research has shown the potential of combined digestion-permeation models as well as species specific digestion models. (C) 2019 Elsevier B.V. All rights reserved.
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