Treating or preventing the early stages of degeneration of articular cartilage or subchondral bone in mammals using carprofen and derivatives
US6506785B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 1999 |
| Grant date | Jan 14, 2003 |
| Priority date | — |
| Expiry date | Apr 1, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P43/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Treating or preventing the early stages of degeneration of articular cartilage or subchondral bone in the affected joint of a mammal is accomplished by administering a chondroprotective compound of Formula (I): where A is hydroxy, (C1-C4)alkoxy, amino, hydroxy-amino, mono-(C1-C2)alkylamino, di-(C1-C2)alkylamino; X and Y are independently H or (C1-C2)alkyl; and n is 1 or 2; R6 is halogen, (C1-C3)alkyl, trifluoromethyl, or nitro; R9 is H; (C1-C2)alkyl; phenyl or phenyl-(C1-C2)alkyl, where phenyl is optionally mono-substituted by fluoro or chloro; —C(═O)—R, where R is (C1-C2)alkyl or phenyl, optionally mono-substituted by fluoro or chloro; or —C(═O)—O—R′, where R1 is (C1-C2)alkyl.This treatment ameliorates, diminishes, actively treats, reverses or prevents any injury, damage or loss of articular cartilage or subchondral bone subsequent to said early stage of said degeneration. Whether or not a mammal needs such treatment is determined by whether or not it exhibits a statistically significant deviation from normal standard values in synovial fluid or membrane from the affected joint, with respect to at least five of the following substances…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.