 In Part 2, the NHL cohort will separately enrol subjects with double- and triple hit lymphoma, so that a minimum of 10 subjects with this subset of disease will be enrolled. To be eligible for this sub-cohort, tumor sample from the subject must demonstrate rearrangement andor overexpression of MYC and either BCL2 andor BCL6 genes. Evaluation of double- or triple-hit status may be performed via appropriate local testing, and the determination of double- or triple-hit diagnosis will be at the discretion of the investigator and GSK Medical Monitor. 