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Current Opinion in Pulmonary Medicine:
doi: 10.1097/MCP.0000000000000013
ASTHMA: Edited by Nicola A. Hanania and Zuzana Diamant

Disease models of chronic inflammatory airway disease: applications and requirements for clinical trials

Diamant, Zuzanaa,b; Clarke, Graham W.c,d; Pieterse, Hermane; Gispert, Juanf

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Abstract

Purpose of review

This review will discuss methodologies and applicability of key inflammatory models of respiratory disease in proof of concept or proof of efficacy clinical studies. In close relationship with these models, induced sputum and inflammatory cell counts will be addressed for phenotype-directed drug development. Additionally, important regulatory aspects regarding noninvestigational medicinal products used in bronchial challenges or clinical inflammatory models of respiratory disease will be highlighted.

Recent findings

The recognition of an ever increasing number of phenotypes and endotypes within conditions such as asthma and chronic obstructive pulmonary disease urges phenotyping of study populations already in early clinical phases of drug development. Apart from the choice of a relevant disease model, recent studies show that especially targeted therapies need to be tested in well defined disease subsets for adequate efficacy assessment. Noninvasive biomarkers, especially sputum inflammatory cell counts, aid phenotyping and are useful outcome measures for novel, targeted therapies.

Summary

Disease phenotyping becomes increasingly important for efficient and cost-effective drug development and subsequent disease management. Inflammatory models of respiratory disease combined with sputum biomarkers are important tools in this approach.

© 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins

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