Showing posts with label halogenated xanthenes. Show all posts
Showing posts with label halogenated xanthenes. Show all posts

May 29, 2013

$PVCT Synthesis Patent Approval Implications

There are several very positive implications to the company receiving approval for its global synthesis patent, including:
  • Patent protection for PV-10 through 2031 (beyond the protections afforded by orphan drug status),
  • The acceptance of the manufacturing process, which improves the synthesis of the drug, by all global regulatory bodies (e.g., US, EU, China, Japan, India, etc.),
  • A synthesis process that prevents PV-10 from being replicated, and
  • Intellectual property coverage of all halogenated xanthenes, about 20 compounds including rose bengal, so there will be a PV-12, PV-14, etc. and, thus, a drug technology platform for treating cancer in the future and as a follow-up act to PV-10.

February 16, 2013

$PVCT: Rose Bengal Partitions into Diseased Cells Preferentially


The prototypical halogenated xanthene, Rose Bengal, as well as other halogenated xanthenes partition preferentially into diseased cells. The intellectual property underlying this aspect of Rose Bengal (and its brothers and sisters) have features that either are patented or better served held by the Provectus as a trade secret.