PMID- 20625116 OWN - NLM STAT- MEDLINE DCOM- 20100928 LR - 20220812 IS - 1527-7755 (Electronic) IS - 0732-183X (Linking) VI - 28 IP - 23 DP - 2010 Aug 10 TI - Prognostic impact of isocitrate dehydrogenase enzyme isoforms 1 and 2 mutations in acute myeloid leukemia: a study by the Acute Leukemia French Association group. PG - 3717-23 LID - 10.1200/JCO.2010.28.2285 [doi] AB - PURPOSE: Recently, whole-genome sequencing in acute myeloid leukemia (AML) identified recurrent isocitrate dehydrogenase enzyme isoform (IDH1) mutations (IDH1m), previously reported to be involved in gliomas as well as IDH2 mutations (IDH2m). The prognosis of both IDH1m and IDH2m in AML remains unclear. PATIENTS AND METHODS: The prevalence and the prognostic impact of R132 IDH1 and R172 IDH2 mutations were evaluated in a cohort of 520 adults with AML homogeneously treated in the French Acute Leukemia French Association (ALFA) -9801 and -9802 trials. RESULTS: The prevalence of IDH1m and IDH2m was 9.6% and 3.0%, respectively, mostly associated with normal cytogenetics (CN). In patients with CN-AML, IDH1m were associated with NPM1m (P = .008), but exclusive of CEBPAm (P = .03). In contrary, no other mutations were detected in IDH2m patients. In CN-AML patients, IDH1m were found in 19% of favorable genotype ([NPM1m or CEBPAm] without fms-related tyrosine kinase 3 [FLT3] internal tandem duplication [ITD]) and were associated with a higher risk of relapse (RR) and a shorter overall survival (OS). Favorable genotype in CN-AML could thus be defined by the association of NPM1m or CEBPAm with neither FLT3-ITD nor IDH1m. In IDH2m CN-AML patients, we observed a higher risk of induction failure, a higher RR and a shorter OS. In multivariate analysis, age, WBC count, the four-gene favorable genotype and IDH2m were independently associated with a higher RR and a shorter OS. CONCLUSION: Contrarily to what is reported in gliomas, IDH1m and IDH2m in AML are associated with a poor prognosis. Screening of IDH1m could help to identify high-risk patients within the subset of CN-AML with a favorable genotype. FAU - Boissel, Nicolas AU - Boissel N AD - University of Paris 7, Paris, France. FAU - Nibourel, Olivier AU - Nibourel O FAU - Renneville, Aline AU - Renneville A FAU - Gardin, Claude AU - Gardin C FAU - Reman, Oumedaly AU - Reman O FAU - Contentin, Nathalie AU - Contentin N FAU - Bordessoule, Dominique AU - Bordessoule D FAU - Pautas, Cecile AU - Pautas C FAU - de Revel, Thierry AU - de Revel T FAU - Quesnel, Bruno AU - Quesnel B FAU - Huchette, Pascal AU - Huchette P FAU - Philippe, Nathalie AU - Philippe N FAU - Geffroy, Sandrine AU - Geffroy S FAU - Terre, Christine AU - Terre C FAU - Thomas, Xavier AU - Thomas X FAU - Castaigne, Sylvie AU - Castaigne S FAU - Dombret, Herve AU - Dombret H FAU - Preudhomme, Claude AU - Preudhomme C LA - eng SI - ClinicalTrials.gov/NCT00880243 SI - ClinicalTrials.gov/NCT00931138 PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20100712 PL - United States TA - J Clin Oncol JT - Journal of clinical oncology : official journal of the American Society of Clinical Oncology JID - 8309333 RN - 0 (Protein Isoforms) RN - EC 1.1.1.41 (IDH2 protein, human) RN - EC 1.1.1.41 (Isocitrate Dehydrogenase) RN - EC 1.1.1.42. (IDH1 protein, human) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Humans MH - Isocitrate Dehydrogenase/*genetics MH - Leukemia, Myeloid, Acute/*genetics MH - Middle Aged MH - Mutation MH - Prevalence MH - Prognosis MH - Protein Isoforms/genetics MH - Randomized Controlled Trials as Topic MH - Retrospective Studies MH - Young Adult EDAT- 2010/07/14 06:00 MHDA- 2010/09/30 06:00 CRDT- 2010/07/14 06:00 PHST- 2010/07/14 06:00 [entrez] PHST- 2010/07/14 06:00 [pubmed] PHST- 2010/09/30 06:00 [medline] AID - JCO.2010.28.2285 [pii] AID - 10.1200/JCO.2010.28.2285 [doi] PST - ppublish SO - J Clin Oncol. 2010 Aug 10;28(23):3717-23. doi: 10.1200/JCO.2010.28.2285. Epub 2010 Jul 12.