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Serving hundreds of leading biopharmaceutical companies globally:

Federal Trade Commission
AstraZeneca
Teva
Boehringer Ingelheim
US Department of Justice
Mallinckrodt
Moodys
Colorcon
Fuji

Generated: May 24, 2018

DrugPatentWatch Database Preview

Details for Patent: 5,438,071

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Summary for Patent: 5,438,071
Title: Stable porfimer sodium compositions and methods for their manufacture
Abstract:A storage stable porfimer sodium (polyhematoporphyrin ether/ester) composition useful in the photodynamic therapy of cancer and other conditions is provided. The composition is characterized in that the percentage of ester linked porphyrin oligomers is less than 10% of the composition. Improved processes for preparing such compositions are also provided wherein acetylated hematoporphyrin is treated with alkali for sufficient time and temperature to reduce the amount of porphyrin oligomers joined by ester linkages to less than 10% of the composition.
Inventor(s): Clauss; Steven L. (Manville, NJ), Pastel; Michael J. (Highland Mills, NY), Zawadzki; Rainer K. (Wuhan, CN)
Assignee: American Cyanamid Company (Stamford, CT)
Application Number:08/075,227
Patent Claim Types:
see list of patent claims
Composition; Compound; Use;

Drugs Protected by US Patent 5,438,071

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted
Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted

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Serving hundreds of leading biopharmaceutical companies globally:

Cipla
McKinsey
Merck
QuintilesIMS
Queensland Health
Deloitte
US Army
AstraZeneca
Johnson and Johnson

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