Immunomodulatory steroids, in particular the hemihydrate of 16.alpha.-bromoepiandrosterone
CA 2365081 A1 · Owner: De Carvalho, Luis Daniel Dos Anjos · Inventors: Prendergast, Patrick T.; Vernon, Russell Neil; Heggie, William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides compositions comprising formula 1 steroids e.g. 16alpha-bromo-3beta-hydroxy-5alpha-androstan-17-one hemihydrate and one or more excipients, typically wherein the composition comprises less than about 3% water. The compositions are useful to make improved pharmaceutical formulations. The invention also provides methods of intermittent dosing of steroid compounds such as analogs of 16alpha-bromo-3beta-hydroxy-5alphaandrostan-17-one and compositions useful in such dosing regimens. The invention further provides compositions and methods to inhibit pathogen (viral) replication, ameliorate symptoms associated with immune dysregulation and to modulate immune responses …
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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 23, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 23, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 23, 2022.
- 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
Timeline From CIPO dates
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.