<qa>  What is the primary aim of this research program?The effect of prophylactic platelet transfusions and Tranexamic Acid on clinical, quality of life and economic outcomes in patients receiving ASCT is unknown. The primary aim of this research program is to perform a randomized controlled trial to determine whether a strategy of prophylactic Tranexamic Acid with therapeutic platelet transfusions is safe and effective compared to prophylactic platelet transfusions in patients undergoing ASCT. Before conducting a larger trial, the investigators first propose a pilot randomized controlled trial to determine the feasibility of such a study. 