GSK Seeking Nucala Approval in Hypereosinophilic Syndrome
GlaxoSmithKline says next year it will seek approval for Nucala (mepolizumab) for treating patients living with Hypereosinophilic Syndrome (HES) based on just-announced positive results from a pivotal study. The Phase 3 study met its primary endpoint — demonstrating a statistically significant result with 50% fewer patients experiencing a HES flare (worsening of symptoms or eosinophil threshold requiring an escalation in therapy) when treated with mepolizumab, compared to placebo, GSK says. It adds that secondary endpoints from the study were also statistically significant and supported the primary endpoint.
First approved in 2015 for severe eosinophilic asthma, mepolizumab is described by GSK as a first-in-class monoclonal antibody that targets IL-5. The company says that mepolizumab is thought to work by reducing blood eosinophil levels and evidence suggests it has potential as a targeted treatment option for a range of inflammatory diseases driven by increased levels of eosinophil. Additional results from the study will be submitted for future presentation at upcoming scientific meetings and in peer-reviewed publications, it says.