CSL Behring’s Zemaira OK’d for Larger Vials

FDA has approved CSL Behring’s four- and five-gram vial sizes for Zemaira [alpha1-proteinase inhibitor (human)], its therapy for treating Alpha 1 Antitrypsin Deficiency. Previously, Zemaira was available only in a one-gram vial, and the new sizes reduces the number of vials necessary for reconstitution, the company says. The natural Alpha 1 protein is derived from human plasma, which CSL Behring says has been shown to raise and maintain serum levels of alpha 1 antitrypsin (AAT) protein in patients. Alpha 1 Antitrypsin Deficiency is a hereditary condition that can severely affect a patient’s lung function, it says. The condition is marked by a low level or absence of AAT, a natural protein that inhibits neutrophil elastase which prevents destruction of lung tissue.

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