RM - My first choice would be an extension and increase of the LOC and loan along with warrants for the company or person backing that increased LOC plus a PP to top up the amount of expected spend until the fall of 2019. This would give us the amount we need to complete this trial until the full results are available with the least dilution.
Of course the best thing as you said would be a BP taking us out for a multi billion dollar amount.
tada