The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 31, 2019
Filed:
Oct. 07, 2015
Eratech S.r.l., Bresso (MI), IT;
Loretta Maggi, Piacenza, IT;
Giovanni Caponetti, Piacenza, IT;
Heike Butti, Piacenza, IT;
Cristina Veneziani, Castel San Giovanni, IT;
Laura Zanellotti, Piacenza, IT;
ZAMBON S.P.A., Bresson (MI), IT;
Abstract
The present invention relates to inhalation formulations of drugs in the form of dry powder for inhalation administration deliverable as such with an inhaler and provided with high deliverability, respirability and stability. In particular, the invention relates to a pharmaceutical composition for inhalation use in powder form comprising a first powder comprising at least a powder (a1) comprising an active agent or a pharmaceutically acceptable salt thereof, in an amount greater than 1% by weight of the powder, leucine in an amount from 5 to 70% by weight of said powder, a sugar in an amount from 20 to 90% by weight of the powder; and a second powder comprising a mixture of a first lactose which has an X50 from 35 to 75 μm, with a second lactose which has an X50 from 1.5 to 10 μm, the content of the first and second lactose in the mixture are respectively from 85% to 96% and from 4% to 15%. The ratio by weight between the first powder and the second powder is from 1/5 to 1/100, and the composition has a fine particle fraction (FPF) greater than 60% and a delivered fraction (DF) greater than 85%.