Particulate drug-containing products and method of manufacture
First Claim
1. A method for making a drug-containing particulate product, the method comprising:
- contacting a drug-containing feed solution with a compressed anti-solvent fluid to precipitate drug-containing particles, the feed solution including the drug in a cosolvent system including at least a first organic solvent and a second organic solvent that are mutually soluble; and
separating the drug-containing particles from the anti-solvent fluid;
wherein the feed solution comprises a biocompatible polymer and the particles are multi-component particles comprising at least a portion of the biocompatible polymer.
6 Assignments
0 Petitions
Accused Products
Abstract
Provided is a compressed anti-solvent technique for manufacture of drug-containing powders for pulmonary delivery. The drug is processed in a cosolvent system including two or more mutually soluble organic solvents. Also provided are powders manufacturable by the manufacture method, including powders of substantially pure drug and powders including a biocompatible polymer for pulmonary sustained drug release applications. Also provided are packaged products including drug-containing powder in a container that is receivable by and operable with a dry powder inhaler to produce an aerosol including dispersed drug-containing particles when the inhaler is actuated.
-
Citations
31 Claims
-
1. A method for making a drug-containing particulate product, the method comprising:
-
contacting a drug-containing feed solution with a compressed anti-solvent fluid to precipitate drug-containing particles, the feed solution including the drug in a cosolvent system including at least a first organic solvent and a second organic solvent that are mutually soluble; and separating the drug-containing particles from the anti-solvent fluid; wherein the feed solution comprises a biocompatible polymer and the particles are multi-component particles comprising at least a portion of the biocompatible polymer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
-
Specification