2-aryl-propionic acids and pharmaceutical compositions containing them
CA 2465375 C · Owner: Cesta, Maria, Candida · Inventors: Cesta, Maria, Candida; Colotta, Francesco; Allegretti, Marcello
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to (R) and (S) 2-aryl-propionic acids of formula (I) , (see formula I), wherein Ar is a substituted phenyl ring and pharmaceutical compositions that , contain them. They are useful in inhibiting chemotactic activation of neutrophils (PMN leukocytes) induced , by the interaction of Interleukin-8 (IL-8) with CXCR1 and CXCR2 membrane receptors. The , acids are used for the prevention and treatment of pathologies deriving from said activation. In , particular, the (R) enantiomers of said acids are lacking cyclo-oxygenase inhibition activity and , are particularly useful in the treatment of neutrofil-dependent pathologies such as psoriasis, ulcerative …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed November 19, 2002 and granted July 31, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 19, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 19, 2024.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.