 Acasti Pharma Inc NASDAQ:ACST CVE:ACST has announced a definitive agreement to acquire Grace Therapeutics Inc, a privately-held biopharmaceutical company developing drug delivery technologies for the treatment of rare and orphan diseases. The deal would have Acasti acquire Graces entire therapeutic pipeline consisting of three unique clinical stage and multiple preclinical stage assets, supported by an intellectual property portfolio of more than 40 granted and pending patents globally. 