Eagerly awaited data from Verastem Inc.'s phase III DUO study should "more than satisfy the skeptics," CEO Robert Forrester told BioWorld as the firm unveiled positive top-line data with duvelisib for relapsed or refractory chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL). "This drug, as we saw from the [earlier] DYNAMO study, is clearly active," he added, referring to a phase II experiment in non-Hodgkin's lymphoma (NHL), results from which investors deemed less than thrilling.