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Expired Canadian patentCanada

A compound that selectively binds to cd123 and use thereof to kill hematologic cancer progenitor cells

CA 2895884 C · Owner: University Of Kentucky Research Foundation · Inventors: Jordan, Craig T.

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Abstract From the Canadian patent

Primitive or progenitor hematologic cancer cells have been implicated in the early stages and development of leukemia and malignant lymphoproliferative disorders including acute myelogenous leukemia (AML) chronic myelogenous leukemia (CML) and chronic lymphoid leukemia (CLL). Interleukin-3 receptor alpha chain (IL-3R.alpha. or CD123) is strongly expressed on progenitor hematologic cancer cells but is virtually undetectable on normal bone marrow cells. The present invention provides methods of impairing progenitor hematologic cancer (e.g. leukemia and lymphomic) cells by selectively targeting cells expressing CD123. These methods are useful in the detection and treatment of leukemias and …

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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 March 6, 2001 and granted April 23, 2019. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 6, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 6, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 6, 2001
GrantedApril 23, 2019
Term endedMarch 6, 2021
Patent numberCA 2895884 C
Classification (IPC)A61K39/39 +1 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedMarch 6, 2001Patent grantedApril 23, 2019Term endedMarch 6, 2021

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