FDA Approves Alexion’s Ultomiris

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FDA has approved Alexion Pharmaceuticals’ Ultomiris (ravulizumab) to treat adult patients with paroxysmal hemoglobinuria (PNH). An agency announcement says PNH is a rare acquired disorder that leads to the rupture or destruction of red blood cells (hemolysis).

Ultomiris is described as a long-acting complement inhibitor that prevents hemolysis. Its efficacy was studied in a clinical trial of 246 patients who previously had not been treated for PNH and were randomized to be treated with Ultomiris or eculizumab (Alexion’s Soliris), the current standard of care for PNH. FDA says the trial results demonstrated that Ultomiris had similar results to Soliris in that patients did not receive a transfusion and had similar incidence of hemolysis.

Common side effects reported by patients in clinical trials were headache and upper respiratory infection. The drug’s labeling includes a Boxed Warning about the risk of life-threatening meningococcal infections and sepsis.

The application had been granted priority review and orphan drug designation.

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