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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
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.v25.i3.20
pages 259-304

Strategies and Therapeutic Opportunities for the Delivery of Drugs to the Esophagus

Liang Zhang
Medicines Research Unit, School of Life and Health Sciences, Aston University, Birmingham, B4 7ET, UK
Danielle Russell
Medicines Research Unit, School of Life and Health Sciences, Aston University, Birmingham, B4 7ET, UK
Barbara R. Conway
Medicines Research Unit, School of Life and Health Sciences, Aston University, Birmingham, B4 7ET, UK
Hannah Batchelor
Medicines Research Unit, School of Life and Health Sciences, Aston University, Birmingham, B4 7ET, UK; and AstraZeneca, Leicestershire, LE11 5RH, UK

Краткое описание

Targeting of drugs and therapies locally to the esophagus is an important objective in the development of new and more effective dosage forms. Therapies that are retained within the oral cavity for both local and systemic action have been utilized for many years, although delivery to the esophagus has been far less reported. Esophageal disease states, including infections, motility disorders, gastric reflux, and cancers, would all benefit from localized drug delivery. Therefore, research in this area provides significant opportunities. The key limitation to effective drug delivery within the esophagus is sufficient retention at this site coupled with activity profiles to correspond with these retention times; therefore, a suitable formulation needs to provide the drug in a ready-to-work form at the site of action during the rapid transit through this organ. A successfully designed esophageal-targeted system can overcome these obstacles. This review presents a range of dosage form approaches for targeting the esophagus, including bioadhesive liquids and orally retained lozenges, chewing gums, gels, and films, as well as endoscopically delivered therapeutics. The techniques used to measure efficacy both in vitro and in vivo are also discussed.
Drug delivery is a growing driver within the pharmaceutical industry and offers benefits both in terms of clinical efficacy, as well as in market positioning, as a means of extending a drug's exclusivity and profitability. Emerging systems that can be used to target the esophagus are reported within this review, as well as the potential of alternative formulations that offer benefits in this exciting area.