Radioactive diagnostic imaging agent
US8790620B2 · kind B2 · utility
4Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2007 |
| Grant date | Jul 29, 2014 |
| Priority date | — |
| Expiry date | Jun 25, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K51/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A composition including a radioactive fluorine-labeled amino acid compound is provided, which can be prevented from radiolysis. Disclosed is a composition which includes a solution containing a radioactive fluorine-labeled amino acid compound as an effective ingredient, in which the pH value of the solution is kept at 2.0-5.9, more preferably 2.0-4.9 in order to inhibit radiolysis. Also, it is possible to further inhibit radiolysis by adding thereto a pharmaceutical additive capable of inhibiting radiolysis, such as a sugar, a sugar alcohol and a sugar lactone, while the pH is kept at 2.0-5.9.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.