Panel Votes Down GSK’s Mepolizumab in COPD

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FDA’s Pulmonary Allergy Drugs Advisory Committee has voted 16 to 3 against approving the use of GlaxoSmithKline’s mepolizumab as an add-on treatment to inhaled corticosteroid-based maintenance treatment for reducing exacerbations in patients with chronic obstructive pulmonary disease (COPD) guided by blood eosinophil counts. The committee said that the basis of data presented did not demonstrate that the product’s risk-benefit profile was adequate to support approval. Panel members also voted that there was not substantial evidence of efficacy (3 for, 16 against) but there was adequate evidence of safety (17 for, 2 against) for mepolizumab use in this population. Panel members suggested further data to characterize the patient population that would be most likely to benefit from this targeted biologic therapy.

 

Mepolizumab was first approved in 2015 for severe eosinophilic asthma. It is a first-in-class monoclonal antibody that targets IL-5. The company says It is believed to work by preventing IL-5 from binding to its receptor on the surface of eosinophils. Inhibiting IL-5 binding in this way reduces blood eosinophils, it says.

 

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