Metal compounds, mixed or sulphated, as phosphate binders
US7799351B2 · kind B2 · utility
8Cited by
44References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 10, 2003 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Jun 17, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01G49/009
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A mixed metal compound for pharmaceutical use is free from aluminium and has a phosphate binding capacity of at least 30%, by weight of the total weight of phosphate present, over a pH range of from 2-8. The compound is especially useful for treatment of hyperphosphataemia. The metals are preferably iron (III) and at least one of calcium, magnesium, lanthanum and cerium. A metal sulphate for pharmaceutical use is selected from at least one of calcium, lanthanum and cerium sulphate compounds and has a phosphate binding capacity of at least 30% by weight of the total phosphate present, over a pH range from 2-8.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.