I don't know for a fact, so its just my opinion, but I don't think the Beth Isreal side of the trials have started yet.  Yes, its all part of the phase 1 trials for kevetrin, and the two medical centers are related.  Though there hasn't been any mention of BI as of yet, concerning active trials.  I'd guess they will start using BI once a couple more cohorts get rolling and there are 3,4,5 cohorts receiving Kevetrin simultaneously for several weeks.