This is gonna be another important milestone.  Not an official endpoint, but nevertheless, an interesting one.

Important in the sense that it will be interesting to see, prior to that day-60 treatment, whether or not, there are still no sign of tumor.  I'm pretty sure that TLT will want to publish data on that to show how good is this technology.  Remember that Ph. 1b p#5 and p#6 were never required to have a 2nd treatment.

That 2nd treatment (@day-60) is kind of interesting as our PDC binds to cancer cells.  But what if there are still no cancer cell, the original ones having been destroyed by the first treatment (day-0) and that there has never been any re-growth?  That 2nd treatment would then be like a placebo one.