The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 23, 2021
Filed:
Aug. 22, 2012
Jan Jezek, Wellingborough, GB;
Barry Kingston Derham, Cambridge, GB;
Jan Jezek, Wellingborough, GB;
Barry Kingston Derham, Cambridge, GB;
Arecor Limited, Cambridge, GB;
Abstract
The invention relates to the discovery that the addition of aromatic carboxylate ions inhibit protein instability caused by aromatic preservatives. Thus, the invention relates to compositions, preferably aqueous compositions, comprising a protein, an aromatic preservative and aromatic carboxylate ions. The proteins remain stable and suitable for storage at ambient temperatures or lower, even in aqueous form. Preferably, the aqueous composition comprises a protein, a phenolic preservative and benzoate ions, wherein the pH of the composition is at least 1 unit greater than the pKof benzoic acid. The invention also provides methods of reducing protein degradation by aromatic preservatives in an aqueous formulation of a protein susceptible to such degradation, comprising the step of adding aromatic carboxylate ions to the formulation wherein the formulation is maintained at a pH that is at least 1 unit greater than the pKof the corresponding aromatic carboxylic acid.