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Critical Reviews™ in Therapeutic Drug Carrier Systems
Импакт фактор: 2.9 5-летний Импакт фактор: 3.72 SJR: 0.736 SNIP: 0.551 CiteScore™: 2.43

ISSN Печать: 0743-4863
ISSN Онлайн: 2162-660X

Выпуски:
Том 36, 2019 Том 35, 2018 Том 34, 2017 Том 33, 2016 Том 32, 2015 Том 31, 2014 Том 30, 2013 Том 29, 2012 Том 28, 2011 Том 27, 2010 Том 26, 2009 Том 25, 2008 Том 24, 2007 Том 23, 2006 Том 22, 2005 Том 21, 2004 Том 20, 2003 Том 19, 2002 Том 18, 2001 Том 17, 2000 Том 16, 1999 Том 15, 1998 Том 14, 1997 Том 13, 1996 Том 12, 1995

Critical Reviews™ in Therapeutic Drug Carrier Systems

DOI: 10.1615/CritRevTherDrugCarrierSyst.v18.i5.20
43 pages

Multifunctional Matrices for Oral Peptide Delivery

Andreas Bernkop-Schnurch
Institute of Pharmaceutical Technology and Biopharmaceutics, Center of Pharmacy, University of Vienna, Althanstr. 14, A-1090 Vienna, Austria
Greg Walker
Institute of Pharmaceutical Technology and Biopharmaceutics, Center of Pharmacy, University of Vienna, Althanstr. 14, A-1090 Vienna, Austria

Краткое описание

The oral administration of peptide drugs represents one of the greatest challenges in pharmaceutical technology. To gain a sufficient bioavailability of these therapeutic agents, various barriers including the mucus-layer barrier, the enzymatic barrier, and the membrane barrier have to be overcome. A promising strategy for achieving this goal is the use of multifunctional matrices. These matrices are based on polymers that display mucoadhesive properties, a permeation-enhancing effect, enzyme-inhibiting properties, and/or a high buffer capacity. Moreover, a sustained or delayed drug release can be provided by delivery systems that contain such polymers. Among them, polyacrylates, cellulose derivatives, and chitosan are promising excipients that can also be customized by chemical modification to improve certain properties.For example, the covalent attachment of thiol moieties on these polymers leads to improved mucoadhesive and permeation-enhancing properties, and the conjugation of enzyme inhibitors enables the matrices to provide protection for peptide drugs against enzymatic degradation. The efficacy of multifunctional matrices in oral peptide delivery has been verified by various in vivo studies that could pave the way for the development of commercially viable formulations.


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