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Canadian application, no grantCanada

Method of treatment of dopamine-related dysfunction through administration of a full d1 dopamine receptor agonist and with no induction of tolerance

CA 2434736 A1 · Owner: University Of North Carolina At Chapel Hill · Inventors: Mailman, Richard Bernard; Huang, Xuemei; Nichols, David Earl

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The present invention relates to the treatment of dopamine-related dysfunction using full D1 dopamine receptor agonists in an intermittent dosing protocol with a short, but essential, "off-period". The D1 agonist concentration is reduced during the "off-period" to obtain a plasma concentration of agonist that suboptimally activates D1 dopamine receptors for a period of time to prevent induction of tolerance. Specifically the method comprises the steps , of administering to a patient a full D1 agonist with a half-life of up to about 6 hours periodically at a dose resulting in a first plasma concentration of agonist capable of activating D1 dopamine receptors to produce a therapeutic …

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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 January 16, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 16, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 16, 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.
FiledJanuary 16, 2002
GrantedNo grant recorded
Term endedJanuary 16, 2022
Patent numberCA 2434736 A1
Classification (IPC)A61K31/47 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedJan 16, 2002Term endedJan 16, 2022

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