“…A pilot trial showed a substantial decrease in the use of antifungal drugs compared with the empiric strategy [18]. More recently, a randomized, prospective trial comparing pre-emptive and empiric strategies, mostly in patients with acute leukemia and neutropenia, showed that the former strategy led to increased diagnosis of IFI, no increased mortality, and decreased antifungal drug cost [19]. Again, as with empiric therapy, data on preemptive strategy in HSCT recipients, although much needed, are not available.…”