Early T-cell precursor acute lymphoblastic leukemia/lymphoma (ETP-ALL/LBL) in adolescents and adults: A high-risk subtype

Nitin Jain, Audrey V. Lamb, Susan O'Brien, Farhad Ravandi, Marina Konopleva, Elias Jabbour, Zhuang Zuo, Jeffrey Jorgensen, Pei Lin, Sherry Pierce, Deborah Thomas, Michael Rytting, Gautam Borthakur, Tapan Kadia, Jorge Cortes, Hagop M. Kantarjian, Joseph D. Khoury

Research output: Contribution to journalArticle

99 Scopus citations

Abstract

Early T-cell precursor (ETP) acute lymphoblastic leukemia/lymphoma (ALL/LBL) is a recently recognized high-risk T lymphoblastic leukemia/lymphoma (T-ALL/LBL) subgroup. The optimal therapeutic approaches to adult patients with ETP-ALL/LBL are poorly characterized. In this study, we compared the outcomes of adults with ETP-ALL/LBL who received treatment on frontline regimens with those of patients with other T-ALL/LBL immunophenotypic subtypes. Patients with newly diagnosed T-ALL/LBL who received frontline chemotherapy between the years 2000 and 2014 at The University of Texas MD Anderson Cancer Center were identified and immunophenotypically categorized into early, thymic, and mature per the World Health Organization (WHO) classification using CD1a and surface CD3 status. Patients with ETP-ALL/LBL were identified on the basis of the following immunophenotypes: CD1a-, CD8-, CD5- (dim), and positivity for 1 or more stem cell or myeloid antigens. A total of 111 patients with T-ALL/LBL (68% T-ALL; 32% T-LBL) with adequate immunophenotype data were identified. The median age was 30 years (range, 13-79). There was no difference in the outcomes of patients based on the WHO subtypes. Nineteen patients (17%) had ETP-ALL/LBL. The complete remission rate /complete remission with incomplete platelet recovery rate in patients with ETP-ALL/LBL was significantly lower than that of non-ETP-ALL/LBL patients (73% vs 91%; P = .03). The median overall survival for patients with ETP-ALL/LBL was 20 months vs not reached for the non-ETP-ALL/LBL patients (P = .008). ETP-ALL/LBL represents a high-risk disease subtype of adult ALL. Novel treatment strategies are needed to improve treatment outcomes in this T-ALL/LBL subset.

Original languageEnglish (US)
Pages (from-to)1863-1869
Number of pages7
JournalBlood
Volume127
Issue number15
DOIs
StatePublished - Apr 14 2016

ASJC Scopus subject areas

  • Biochemistry
  • Immunology
  • Hematology
  • Cell Biology

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    Jain, N., Lamb, A. V., O'Brien, S., Ravandi, F., Konopleva, M., Jabbour, E., Zuo, Z., Jorgensen, J., Lin, P., Pierce, S., Thomas, D., Rytting, M., Borthakur, G., Kadia, T., Cortes, J., Kantarjian, H. M., & Khoury, J. D. (2016). Early T-cell precursor acute lymphoblastic leukemia/lymphoma (ETP-ALL/LBL) in adolescents and adults: A high-risk subtype. Blood, 127(15), 1863-1869. https://doi.org/10.1182/blood-2015-08-661702