I noticed that 90%/98% discrepancy too. I figure they just forgot to change the slide stating "90%" from a previous presentation and that the highlight slide stating 98% was the current figure. They reported being at ~95% on Feb 8th. They have expressed enrollment target as "2400+" a lot of the time. They may not have to stop at exactly 2400. There may be room for addition of more than 50 patients (i.e. more than 50 USA patients) regardless of the SSRA results.

BDAZ