High capacity diketopiperazine microparticles and methods
AssigneeMannKind Corporation
InventorsMarshall Grant, Paul Menkin, Grayson W. Stowell
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Abstract
Disclosed herein are diketopiperazine microparticles having high capacity for adsorbing a drug or active agent. In particular, the diketopiperazine microparticle are formed using fumaryl diketopiperazine and can comprise a drug in large doses for the treatment of disease or disorders by pulmonary delivery via oral inhalation.
Claims14
A method of delivering a drug or an active agent to a patient in need thereof comprising administering to the patient in need thereof using a reusable inhaler an inhalable composition comprising a drug or active agent and diketopiperazine microparticles, each of the diketopiperazine microparticles comprising a plurality of structural domains, each of the plurality of structural domains comprising a nucleus surrounded by layers of a porous crystalline material, and each of the diketopiperazine microparticles have a mass-weighted average particle size of about 33,000 to about 216,000 voxels measured by X-ray tomography for particle sizes measuring from about 0.5 pm to about 4 pm in geometric diameter.
Dependencies are inferred from the claim text.