HAIFA, Israel--(BUSINESS WIRE)--Pluristem Therapeutics Inc. (NasdaqCM: PSTI) (DAX: PJT) today announced that the independent DSMB approved the advancement to the intermediate dose level of the company’s placenta derived cell therapy, PLX-PAD, in the Phase I clinical trial in Europe for the treatment of critical limb ischemia (CLI), the end stage of peripheral artery disease (PAD).