Inhaled insulin: Promises and concerns

Abstract

Since the introduction of Pfzer Exubera® in the early 1990s, a number of other inhaled insulin solutions have been developed. This article provides an overview of inhaled insulin systems developed by Pfizer, Novo Nordisk, MannKind, and Lilly, three of which are currently in phase 3 trials. The strengths and weaknesses of each product, as well as the general technologies (liquid vs dry powder), are evaluated. Results of clinical studies conducted by Pfzer and corroborated by other studies are summarized. Although inhaled insulin promises much, a greater body of controlled studies is necessary to draw frm conclusions about its safety and efficacy. © Diabetes Technology Society.