TP53, SF3B1, and NOTCH1 mutations and outcome of allotransplantation for chronic lymphocytic leukemia: six-year follow-up of the GCLLSG CLL3X trial.

Peter Dreger, Andrea Schnaiter, Thorsten Zenz, Sebastian Böttcher, Marianna Rossi, Peter Paschka, Andreas Bühler, Sascha Dietrich, Raymonde Busch, Matthias Ritgen, Donald Bunjes, Matthias Zeis, Michael Stadler, Lutz Uharek, Christof Scheid, Ute Hegenbart, Michael Hallek, Michael Kneba, Norbert Schmitz, Hartmut DöhnerStephan Stilgenbauer

Research output: Contribution to journalArticlepeer-review

Abstract

The purpose of this analysis was to provide 6-year follow-up of the CLL3X trial, which studied reduced-intensity allogeneic hematopoietic stem cell transplantation (HSCT) in patients with poor-risk chronic lymphocytic leukemia (CLL), and to investigate the effect of TP53, SF3B1, and NOTCH1 mutations on HSCT outcome. For 90 allografted patients, 6-year overall survival (OS) was 58% and 6-year event-free survival (EFS) was 38%. TP53, SF3B1, and NOTCH1 mutations were found in 30%, 26%, and 14% of the trial population, respectively. By univariate and multivariate analyses, the mutational status of the TP53, SF3B1, and NOTCH1 genes had no significant effect on OS and EFS. Studies of minimal residual disease confirmed durability of CLL eradication in mutated patients. We conclude that HSCT can provide long-term disease control in patients with poor-risk CLL independent of the presence of TP53, SF3B1, and NOTCH1 mutations. The trial has been registered at the US National Cancer Institute as #EU-20554, NCT00281983.

Original languageEnglish
Pages (from-to)3284-3288
Number of pages5
JournalBlood
Volume121
Issue number16
DOIs
Publication statusPublished - Apr 18 2013

ASJC Scopus subject areas

  • Hematology
  • Biochemistry
  • Cell Biology
  • Immunology

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