Methods for making polysaccharide-protein conjugates
US12059461B2 · kind B2 · utility
0Cited by
6References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2021 |
| Grant date | Aug 13, 2024 |
| Priority date | — |
| Expiry date | Feb 4, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/30
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention provides methods for making polysaccharide-protein conjugates in which polysaccharides, typically from bacteria, are conjugated to a carrier protein by reductive amination under conditions which improve conjugation reaction consistency, increase consumption of protein during conjugation reaction, generate conjugates of higher molecular weight, and/or reduce the levels of free cyanide in the conjugate reaction product. The polysaccharide-protein conjugates obtained using these methods are useful for inclusion in multivalent vaccines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.