TNKS and neoplasm: An improved derivative of JW74, G007‐LK, which inhibits tankyrase with double‐digit nanomolar IC50 values and good specificity (Table 1) (Voronkov et al.,2013), decreases the tumour area in the small intestine of these mice by approximately two thirds and shows significant inhibition of tumour growth in various xenograft models with APC‐mutant human cell lines (SW480, COLO‐320DM and SW403) (Lau et al.,2013).