The present invention relates to the pulmonary administration of a therapeutic protein by means of powdered pharmaceutical compositions suitable for inhalation therapy. In particular the invention relates to dry powder formulations of secretory leukocyte protease inhibitor (SLPI) for pulmonary delivery. Exemplary pharmaceutical compositions contain SLPI and a pharmaceutically acceptable carrier in the form of a dry powder which is typically less than about 10% by weight water. About 50% to 95% by mass of the powder comprises particles or agglomerates of particles having a diameter within the range of from about 1.0 microns to about 8 microns, with a mass median diameter ranging from about 3.0 microns to about 6 microns.
本发明涉及通过适用于吸入疗法的粉末状药物组合物对治疗性蛋白质进行肺部给药。本发明尤其涉及用于肺部给药的分泌性白细胞蛋白酶抑制剂(SL
PI)的干粉制剂。示例性药物组合物含有SL
PI和药学上可接受的载体,其形式为干粉,按重量计
水分通常小于约10%。粉末中约 50%至 95%(按重量计)的颗粒或颗粒团聚体的直径在约 1.0 微米至约 8 微米的范围内,质量中值直径在约 3.0 微米至约 6 微米的范围内。