Intravenous immunoglobulin composition
US9365635B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2012 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Sep 14, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07K2319/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A concentrated, immunoglobulin composition for treating subjects vaccinated against or infected with a pathogenic microorganism, is made by (a) selecting a population of individuals previously vaccinated against antigens associated with the pathogenic microorganism; (b) identifying very high titer individuals by determining the level of specific antibodies immunoreactive with the pathogenic microorganism in the blood of the individuals; (c) combining blood from the very high titer individuals; and (d) purifying and/or concentrating the product of step (c). A concentrated immunoglobulin composition can include specific antibodies immunoreactive with a pathogenic microorganism, wherein the titer of specific antibodies is at least 5 times higher than the average titer of specific antibodies of a population of individuals previously vaccinated against antigens associated with the pathogenic microorganism. The composition has a relatively high protein concentration and a low percentage of protein aggregates. The pathogenic microorganism is preferably smallpox virus or vaccinia virus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.