would not put much hope into buyout. Been trading for 20 years and don't even remember a single pink sheet pharma buyout of top of my head.
Company getting delisted to pinks and not being able to raise $ is a good indicator what other players think of potential. Doing toxic dilutive financing is last resort for companies. And these guys are burning through lots of $. Better hope current note sellers sell quick enough before company runs out of $ and needs to raise again.