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Utilization of wolinella succinogenes asparaginase to treat diseases associated with asparagine dependence

CA 2295980 A1 · Owner: Durden, Donald L. · Inventors: Durden, Donald L.

CIPO record

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Abstract From the Canadian patent

Described herein are methods for producing recombinant forms of asparaginase derived from Wolinella succinogenes. In addition methods for covalent , modification of proteins including asparaginases, by acylation are also provided. Certain embodiments provide for epitopic-labeling of the amino terminus of W. succinogenes asparaginase. Additional embodiments concern methods for the therapeutic utilization of the native homotetrameric form of , W. succinogenes asparaginase as well as the use of epitopically-labeled or non-epitopically-labeled recombinant W. succinogenes asparaginase (or a covalently modified analog thereof) in the therapeutic treatment of malignant and non-malignant …

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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 June 9, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 9, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 9, 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.
FiledJune 9, 1998
GrantedNo grant recorded
Term endedJune 9, 2018
Patent numberCA 2295980 A1
Classification (IPC)A61K38/50 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedJune 9, 1998Term endedJune 9, 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.