Upgrade to enjoy subscriber-only features like email alerts and data export. See the Plans and Pricing
|Title:||Stabilized prostaglandin E1|
|Abstract:||A stable and lyophilized formulation of prostaglandin E-1 made by the process comprising a) dissolving PGE-1 in a solution of lactose and tertiary butyl alcohol wherein said tertiary butyl alcohol is present in an amount of from about 15% to about 33% volume/volume and the ratio of said lactose to PGE-1 is from about 40,000 to 1 to about 10,000 to 1 weight/weight whereby a formulation of PGE-1dispersed in lactose is formed; b) adjusting and maintaining the pH of said formulation from about 3.5 to about 6 with an organic acid buffer; c) freezing said formulation to about -50.degree. C.; and d) drying said formulation to obtain a moisture content of less than 1% by dry weight and a tertiary butyl alcohol content of less than 3% by dry weight. Preferably, step c) includes after freezing said formulation to about -50.degree. C., warming to about -25.degree. C. for about 2 hours then refreezing to about 50.degree. C. Preferably, the prostaglandin is in an amount of about 25 to 100 ppm in lactose and the pH is maintained at about 4 to 5.|
|Inventor(s):||Teagarden; Dirk L. (Kalamazoo, MI), Petre; William J. (Kalamazoo, MI), Gold; Paul M. (Vicksburg, MI)|
|Assignee:||Pharmacia & Upjohn Company (Kalamazoo, MI)|
Patent Claim Types:|
see list of patent claims
|PCT Filed||September 06, 1994||PCT Application Number:||PCT/US94/09648|
|PCT Publication Date:||May 04, 1995||PCT Publication Number:||WO95/11683|
|Country||Document Number||Estimated Expiration||Supplementary Protection Certificate||SPC Country||SPC Expiration|
| This preview shows a limited data set|
Subscribe for full access, or try a Trial
The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.
Export unavailable in trial.
Subscribe for complete access.
Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verifification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.