Consensus criteria for diagnosis, staging, and treatment response assessment of T-cell prolymphocytic leukemia (T-PLL)
T-cell prolymphocytic leukemia (T-PLL) is a rare, mature T-cell neoplasm with a heterogeneous clinical course. With the advent of novel treatment options that will potentially change the management of T-PLL patients it has become necessary to produce consensus guidelines for the design and conduct of clinical trials. The T-PLL International Study group (TPLL-ISG)set out to define standardized criteria for diagnosis, treatment indication, and evaluation of response. These criteria will facilitate comparison of results from clinical trials in T-PLL and will thus support clinical decision making as well as the approval of new therapeutics by healthcare authorities.