PK of BST-236 and cytarabine. (A) Mean time-concentration profiles of BST-236 and cytarabine following a single BST-236 infusion administration (day 1) for a patient receiving 6 g/m². (B) Mean time-concentration profiles of BST-236 following repeated BST-236 infusion administration (days 1 to 6) for all treatment groups (n = 26).