Compositions for inhalation

US6794357B1 · kind B1 · utility

Assignee

• ASTRAZENECA AB · SE

Inventors

• Kjell Backstrom · Lund, SE
• Carl Magnus Olof Dahlback · Lund, SE
• Peter Edman · Ulricehamn, SE
• Ann Charlotte Birgit Johansson · Lund, SE

Key dates

• Filing date: Oct 24, 1996
• Grant date: Sep 21, 2004
• Expiry date: Oct 24, 2016

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K47/12
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Disclosed herein are dry powder compositions comprising a pharmacologically active polypeptide and a surfactant, wherein at least 50% of the total mass of the polypeptide and the surfactant consists of primary particles having a diameter less than 10 microns. The compositions are suitable for inhalation from a dry powder inhaler device.