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.

Date of Patent:
Dec. 07, 2021

Filed:

Jul. 09, 2020
Applicant:

Mannkind Corporation, Westlake Village, CA (US);

Inventors:

Bryan R. Wilson, Brewster, NY (US);

Joseph J. Guarneri, Stamford, CT (US);

Marshall L. Grant, Newtown, CT (US);

Assignee:

MannKind Corporation, Westlake Village, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D 241/08 (2006.01); A61P 3/10 (2006.01); A61K 9/14 (2006.01); A61K 9/50 (2006.01); B01D 1/18 (2006.01); A61K 38/26 (2006.01); A61K 38/28 (2006.01);
U.S. Cl.
CPC ...
C07D 241/08 (2013.01); A61K 9/14 (2013.01); A61K 9/5015 (2013.01); A61K 38/26 (2013.01); A61K 38/28 (2013.01); A61P 3/10 (2018.01); B01D 1/18 (2013.01);
Abstract

Disclosed herein are DKP microcrystals made by an improved method where they do not irreversibly self-assemble into microparticles. The microcrystals can be dispersed by atomization and re-formed by spray drying into particles having spherical shell morphology. Active agents and excipients can be incorporated into the particles by spray drying a solution containing the components to be incorporated into microcrystalline diketopiperazine particles. In particular, the microcrystalline particle compositions are suitable for pulmonary drug delivery of one or more peptides, proteins, nucleic acids and/or small organic molecules.


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