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The hypomorphic TERT A1062T variant is associated with increased treatment-related toxicity in acute myeloid leukemia

Both, Anna, Krauter, Jürgen, Damm, Frederik, Thol, Felicitas, Göhring, Gudrun, Heuser, Michael, Ottmann, Oliver, Lübbert, Michael, Wattad, Mohammed, Kanz, Lothar, Schlimok, Günter, Raghavachar, Aruna, Fiedler, Walter, Kirchner, Hartmut, Brugger, Wolfram, Schlegelberger, Brigitte, Heil, Gerhard, Ganser, Arnold and Wagner, Katharina 2017. The hypomorphic TERT A1062T variant is associated with increased treatment-related toxicity in acute myeloid leukemia. Annals of Hematology 96 (6) , pp. 895-904. 10.1007/s00277-017-2967-0

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Abstract

Hypomorphic germline variants in TERT, the gene encoding the reverse transcriptase component of the human telomerase complex, occur with a frequency of 3–5% in acute myeloid leukemia. We analyzed the clinical and prognostic impact of the most common TERT A1062T variant in younger patients with acute myeloid leukemia intensively treated within two prospective multicenter trials. Four hundred and twenty patients (age 17–60 years) were analyzed for the TERT A1062T variant by direct sequencing. Fifteen patients (3.6%) carried the TERT A1062T variant. Patients with the TERT A1062T variant had a trend towards less favorable and more intermediate 2/adverse karyotypes/genotypes according to the European Leukemia Net classification. In univariate and multivariate analysis, patients with the TERT A1062T variant had a significantly inferior overall survival compared to wild-type patients (6-year overall survival 20 vs. 41%, p = 0.005). Patients with the TERT A1062T variant showed a high rate of treatment-related mortality: 5/15 (33%) died during induction therapy or in complete remission as compared to 62/405 (15%) of the wild-type patients. In patients with the TERT variant, 14/15 (93%) suffered from non-hematological/non-infectious grade 3/4 adverse events (mostly hepatic and/or mucosal) as compared to 216/405 (53%) wild-type patients (p = 0.006). In multivariate analysis, the TERT A1062T variant was an independent risk factor predicting for adverse events during induction chemotherapy. In conclusion, the TERT A1062T variant is an independent negative prognostic factor in younger patients with acute myeloid leukemia and seems to predispose those patients to treatment-related toxicity.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Subjects: R Medicine > R Medicine (General)
Publisher: Springer
ISSN: 0939-5555
Date of Acceptance: 24 February 2017
Last Modified: 08 Jun 2017 16:02
URI: http://orca-mwe.cf.ac.uk/id/eprint/100630

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