FDA Extends Review of Sanofi’s iGlarLixi Over ‘Pen’ Concerns

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FDA has extended by three months its review of a Sanofi NDA for iGlarLixi (insulin glargine and lixisenatide) injection, indicated for improving glycemic control in adults with Type 2 diabetes mellitus. Sanofi has submitted updated information on the pen delivery device to address concerns from an advisory committee that reviewed the submission in May. The submission of the additional information is viewed as a major amendment, and the new user fee review target is now expected by late November. In July, lixisenatide was approved by FDA as a monotherapy under the brand name Adlyxin for treating Type 2 diabetes.

In May, FDA’s Endocrinologic and Metabolic Drugs Advisory Committee voted 12 to 2 to recommend approval for iGlarLixi, but several panel members expressed concern with the pen administration device used to deliver the medications. Specifically, they were concerned that pen’s design was confusing and could lead to dosing errors. They urged the agency and the company to address these issues prior to approving the NDA.

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