...while IDH2R172G was present in CDS17 and T-CDS17 lines...enasidenib was able reduce 2-HG levels and to eliminate mIDH2 cells at low micromolar concentrations. Moreover, enasidenib was able to target cancer stem cell-enriched 3D cultures. Finally, oral administration of enasidenid in T-CDS17-xenografted mice resulted in a significant reduction of tumor growth while increasing chondrogenic differentiation...Enasidenib may constitute an efficient treatment for mIDH2 CS.