"Secondly, as I explained in an earlier post, investors in the Private Placements had to agree to sign a Confidentiality Agreement, so they must have been shown trial data that was not publically available."
That is no quite correct, if they were shown any inside info they would be restricted in selling any stock and warrants for 12 months. They were only given info that was public, the NDA was for the PP terms until they became public.