Dry powder formulations for inhalation
First Claim
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1. A dry powder composition for delivery to a subjects lungs by a dry powder inhaler, the composition comprising dry particles that comprise acetylsalicylic acid, or a pharmaceutically acceptable salt thereof;
- wherein said dry particles have a mass median aerodynamic diameter (MMAD) within a range of 0.5 μ
m to 5 μ
m, wherein said dry particles have a DV50 in a range of 3-6.7 μ
m and a DV10 in a range of 0.9-3.3 μ
m wherein the dry particles further comprise a pharmaceutically acceptable excipient, wherein the pharmaceutically acceptable excipient comprises one or more phospholipids in an amount ranging from 0.1% (w/w) to 10% (w/w) of the composition, wherein acetylsalicylic acid, or a pharmaceutically acceptable salt thereof, is in an amount of 50% (w/w) or more of the composition, and wherein the dry powder composition is free of carrier particles.
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Abstract
A respirable dry powder including acetylsalicylic acid in particles having a mass median aerodynamic diameter (MMAD) within a range of about 0.5 μm to about 10 μm. The respirable dry powder may contain a pharmaceutically acceptable excipient, such as a phospholipid, in an amount ranging from about 0.1% (w/w) to about 10% (w/w) of the particles.
124 Citations
14 Claims
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1. A dry powder composition for delivery to a subjects lungs by a dry powder inhaler, the composition comprising dry particles that comprise acetylsalicylic acid, or a pharmaceutically acceptable salt thereof;
- wherein said dry particles have a mass median aerodynamic diameter (MMAD) within a range of 0.5 μ
m to 5 μ
m, wherein said dry particles have a DV50 in a range of 3-6.7 μ
m and a DV10 in a range of 0.9-3.3 μ
m wherein the dry particles further comprise a pharmaceutically acceptable excipient, wherein the pharmaceutically acceptable excipient comprises one or more phospholipids in an amount ranging from 0.1% (w/w) to 10% (w/w) of the composition, wherein acetylsalicylic acid, or a pharmaceutically acceptable salt thereof, is in an amount of 50% (w/w) or more of the composition, and wherein the dry powder composition is free of carrier particles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
- wherein said dry particles have a mass median aerodynamic diameter (MMAD) within a range of 0.5 μ
Specification