Methods and compositions for pulmonary delivery of insulin
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61K-009/14
A61K-009/12
A61K-038/28
출원번호
UP-0612376
(2003-07-01)
등록번호
US-7521069
(2009-07-01)
발명자
/ 주소
Patton, John S.
Foster, Linda S.
Platz, Robert M.
출원인 / 주소
Novartis AG
대리인 / 주소
Kung, John W.
인용정보
피인용 횟수 :
57인용 특허 :
291
초록
Systemic delivery of insulin to a mammalian host is accomplished by inhalation of a dry powder of insulin. It has been found that dry insulin powders are rapidly absorbed through the alveolar regions of the lungs.
대표청구항▼
What is claimed is: 1. A method for preparing a dry powder insulin composition, said method comprising: dissolving insulin in an aqueous buffer at a concentration in the range from 0.01% to 1% to form a solution; and spray drying the solution to produce particles having an average size below 10
What is claimed is: 1. A method for preparing a dry powder insulin composition, said method comprising: dissolving insulin in an aqueous buffer at a concentration in the range from 0.01% to 1% to form a solution; and spray drying the solution to produce particles having an average size below 10 μm. 2. A method as in claim 1, wherein the insulin is dissolved in an aqueous buffer together with a pharmaceutical carrier, wherein a dry powder having insulin present in individual particles at from 5% to 99% by weight is produced upon spray drying. 3. A method as in claim 2, wherein the pharmaceutical carrier is a carbohydrate, organic salt, amino acid, peptide, or protein which produces a powder upon spray drying. 4. A method as in claim 3, wherein the pharmaceutical carrier is a carbohydrate selected from the group consisting of mannitol, raffinose, lactose, maltodextrin and trehalose. 5. A method as in claim 2, wherein the pharmaceutical carrier is an organic salt selected from the group consisting of sodium citrate, sodium acetate, and sodium ascorbate. 6. An insulin composition for pulmonary delivery, said composition comprising a dry powder of individual particles which include insulin present at from 20% to 80% by weight in a pharmaceutical carrier material, wherein the particles have an average size below 10 μm. 7. An insulin composition as in claim 6, wherein the composition is substantially free from penetration enhancers. 8. An insulin composition as in claim 6, wherein the pharmaceutical carrier material comprises a carbohydrate selected from the group consisting of mannitol, raffinose, lactose, maltodextrin, and trehalose. 9. An insulin composition as in claim 6, wherein the pharmaceutical carrier material comprises an organic salt selected from the group consisting of sodium citrate, sodium gluconate, and sodium ascorbate. 10. A method for preparing a dry powder insulin composition, said method comprising: providing an aqueous solution of insulin and a pharmaceutical carrier dissolved in an aqueous buffer, wherein the insulin is present at 0.01% to 1% by weight and comprises from 20% to 80% of the total weight of insulin and pharmaceutical carrier in the solution; and spray drying the solution to produce particles comprising both the insulin and the pharmaceutical carrier having an average size below 10μm and a moisture content below 10%. 11. A method as in claim 10, wherein the pharmaceutical carrier is a carbohydrate, organic salt, amino acid, peptide, or protein which produces a powder upon spray drying. 12. A method as in claim 11, wherein the carbohydrate carrier is selected from the group consisting of mannitol, raffinose, lactose, maltodextrin and trehalose. 13. A method as in claim 10, wherein the carrier is an organic salt selected from the group consisting of sodium citrate, sodium acetate, and sodium ascorbate. 14. An insulin composition for pulmonary delivery, said composition comprising: a dry powder of individual particles including both insulin and a pharmaceutical carrier, wherein the particles comprise from 20% to 80% insulin by weight, have an average particle size below 10μm, and have a moisture content below 10%. 15. An insulin composition as in claim 14, wherein the particles consist essentially of the insulin and the pharmaceutical carrier. 16. An insulin composition as in claim 14, wherein the composition is substantially free from penetration enhancers. 17. An insulin composition as in claim 14, wherein the pharmaceutical carrier comprises a carbohydrate selected from the group consisting of mannitol, raffinose, lactose, maltodextrin, and trehalose. 18. An insulin composition as in claim 14, wherein the pharmaceutical carrier comprises an organic salt selected from the group consisting of sodium citrate, sodium gluconate, and sodium ascorbate. 19. A method as in claim 1, wherein the composition is substantially free from penetration enhancers. 20. A method as in claim 1, wherein the particles are substantially amorphous. 21. A composition as in claim 6, wherein the composition is substantially amorphous. 22. A method as in claim 10, wherein the particles have a moisture content less than about 5% by weight. 23. A method as in claim 10, wherein the particles are substantially amorphous. 24. An insulin composition as in claim 14, wherein the particles have a moisture content less than about 5% by weight. 25. An insulin composition as in claim 14, wherein the particles are substantially amorphous. 26. An insulin composition for pulmonary delivery, said composition comprising a dry powder of individual particles including insulin present at from 5% to 80% by weight in a pharmaceutical carrier material, wherein the particles have an average size below 10 μm. 27. An insulin composition as in claim 26, wherein the composition is substantially free from penetration enhancers. 28. An insulin composition as in claim 26, wherein the pharmaceutical carrier material comprises a carbohydrate selected from the group consisting of mannitol, raffinose, lactose, maltodextrin, and trehalose. 29. A composition as in claim 26, wherein the composition is substantially amorphous. 30. A composition as in claim 26, wherein the particles have a moisture content less than about 10% by weight. 31. A composition as in claim 26, wherein the particles have a moisture content less than about 5% by weight. 32. A method for preparing a dry powder insulin composition, said method comprising: providing an aqueous solution of insulin and a pharmaceutical carrier dissolved in an aqueous buffer, wherein the insulin is present at 0.01% to 1% by weight and comprises from 5% to 80% of the total weight of insulin and pharmaceutical carrier in the solution; and spray drying the solution to produce particles comprising both the insulin and the pharmaceutical carrier having an average size below 10 μm and a moisture content below 10%. 33. A method as in claim 32, wherein the particles have a moisture content less than about 5% by weight. 34. A method as in claim 32, wherein the particles are substantially amorphous.
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