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Profile Name | IDH2 R140X |
Gene Variant Detail | |
Relevant Treatment Approaches | IDH Inhibitor (Pan) IDH2 Inhibitor |
Molecular Profile | Indication/Tumor Type | Response Type | Relevant Treatment Approaches | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
---|---|---|---|---|---|---|---|---|
IDH2 R140X | myelodysplastic syndrome | predicted - sensitive | IDH2 Inhibitor | Enasidenib | Phase II | Actionable | In a Phase II trial, Idhifa (enasidenib) treatment was well tolerated and resulted in an overall response rate of 43% (9/21, 5 complete remission (CR), 1 partial remission, 1 marrow CR, 2 hematological improvement only) in patients with higher-risk myelodysplastic syndrome harboring IDH2 R140 or R172 mutations who were refractory to or progressed on hypomethylating agents, with a median overall survival of 21.3 months (J Clin Oncol 39, no. 15_suppl (May 20, 2021) 7010-7010; NCT03383575). | detail... |
IDH2 R140X | myelodysplastic syndrome | predicted - sensitive | IDH2 Inhibitor | Azacitidine + Enasidenib | Phase II | Actionable | In a Phase II trial, Idhifa (enasidenib) and Vidaza (azacitidine) combination treatment was well tolerated and resulted in an overall response rate of 68% (30/46, 11 complete remission (CR), 3 partial remission, 12 marrow CR, 4 hematological improvement only) in patients with higher-risk myelodysplastic syndrome harboring IDH2 R140 or R172 mutations who were naive to hypomethylating agents, with a median overall survival of 21.3 months (J Clin Oncol 39, no. 15_suppl (May 20, 2021) 7010-7010; NCT03383575). | detail... |