Athersys Completes Enrollment In Repeat Dose Study Of MultiStem RTT News ... dose escalation trial evaluating the safety and maximum tolerated dose of a single or repeat dose administration of allogeneic MultiStem delivered intravenously following a traditional donor-derived hematopoietic stem cell transplant or HSCT. ... Athersys Confirms Completion of Patient Enrollment for Its Phase I Study of ... Athersys Confirms Completion of Patient Enrollment for Its Phase I Study of ... Athersys completes patient enrollment for Phase I study of MultiStem |