Inhaled alpha1-proteinase inhibitor therapy in patients with cystic fibrosis

Journal of Cystic Fibrosis : Official Journal of the European Cystic Fibrosis Society
Amit GaggarScott H Donaldson

Abstract

Inhaled alpha1-proteinase inhibitor (PI) is known to reduce neutrophil elastase burden in some patients with CF. This phase 2a study was designed to test inhaled Alpha-1 HC, a new aerosolized alpha1-PI formulation, in CF patients. We performed a randomized, double-blind, placebo-controlled study and evaluated the safety of 100 or 200mg of inhaled Alpha-1 HC once daily for 3 weeks in subjects with CF. Thirty adult subjects were randomized in a 2:1 ratio to receive Alpha-1 HC or placebo. Drug delivery was confirmed by a dose-dependent increase in the sputum alpha1-PI. Seven (20.0%) of the 35 adverse events in the 100-mg dose group, 3 (13.0%) of 23 in the 200-mg dose group, and 4 (14.3%) of 28 in the placebo group were drug-related in these subjects. One serious adverse event occurred in 1 subject within each group. Alpha-1 HC inhalation was safe and well tolerated.

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Citations

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