In vitro models to evaluate ingestible devices : present status and current trends

O’Farrell, Connor and Stamatopoulos, Konstantinos and Simmons, Mark and Batchelor, Hannah (2021) In vitro models to evaluate ingestible devices : present status and current trends. Advanced Drug Delivery Reviews, 178. 113924. ISSN 0169-409X (https://doi.org/10.1016/j.addr.2021.113924)

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Abstract

Orally ingestible medical devices offer significant opportunity in the diagnosis and treatment of gastrointestinal conditions. Their development necessitates the use of models that simulate the gastrointestinal environment on both a macro and micro scale. An evolution in scientific technology has enabled a wide range of in vitro, ex vivo and in vivo models to be developed that replicate the gastrointestinal tract. This review describes the landscape of the existing range of in vitro tools that are available to characterize ingestible devices. Models are presented with details on their benefits and limitations with regards to the evaluation of ingestible devices and examples of their use in the evaluation of such devices is presented where available. The multitude of models available provides a suite of tools that can be used in the evaluation of ingestible devices that should be selected on the functionality of the device and the mechanism of its function.

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