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Use of substituted diphenyl indanone, indane and indole compounds for the treatment or prevention of sickle cell disease, inflammatory diseases characterized by abnormal cell proliferation, diarrhea and scours

CA 2311129 A1 · Owner: Alper, Seth · Inventors: Halperin, Jose; Lencer, Wayne I.; Bellot, Emile M. Jr.

CIPO record

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Abstract From the Canadian patent

The present invention provides substituted 3,3-diphenyl indanone indane and , indole compounds, as well as analogues thereof which are specific potent and , safe inhibitors of the Ca2+-activated potassium channel (Gardos channel) of erythrocytes, of mammalian cell proliferation and/or of secretagoguestimulated transepithelial electrogenic chloride secretion in intestinal cells. The compounds can be used to reduce sickle erytrocyte dehydration and/or delay the occurrence of erythrocyte sickling or deformation in situ as a therapeutic approach towards the treatment or prevention of sickle cell disease. The compounds can also be used to inhibit mamalian cell proliferation in situ as a …

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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 20, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 20, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 20, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 20, 1998
GrantedNo grant recorded
Term endedNovember 20, 2018
Patent numberCA 2311129 A1
Classification (IPC)A61K31/40 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedNov 20, 1998Term endedNov 20, 2018

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.