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GSK and XenoPort resubmit new drug application for Solzira

GlaxoSmithKline or GSK and XenoPort, a biopharmaceutical company, have announced that GSK has resubmitted the new drug application to the FDA requesting approval of Solzira extended release tablets for the treatment of moderate-to-severe primary restless legs syndrome.

The FDA had requested that the data in a single study be reformatted. In addition, GSK conducted a review of other clinical studies taking this input into account. The withdrawal was not related to the content of the filing.

Solzira is a new entity that is designed to improve upon the pharmacokinetics of gabapentin by taking advantage of high-capacity transport mechanisms in the gastrointestinal tract to improve absorption.