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. 2019 Aug;103(2):88-98.
doi: 10.1111/ejh.13247. Epub 2019 Jun 6.

Survival in adult acute lymphoblastic leukaemia (ALL): A report from the Swedish ALL Registry

Affiliations

Survival in adult acute lymphoblastic leukaemia (ALL): A report from the Swedish ALL Registry

Emma Lennmyr et al. Eur J Haematol. 2019 Aug.

Abstract

Objectives: As new, effective therapies emerge for acute lymphoblastic leukaemia (ALL), the results of clinical trials need to relate to standard of care.

Methods: We used the population-based Swedish ALL Registry to evaluate characteristics, treatment and long-term outcome in 933 patients with diagnosis between 1997 and 2015.

Results: The median age was 53 years. The frequency of Philadelphia (Ph)-positive leukaemia was 34% of examined B-ALL with a peak incidence at 50-59 years. Five-year overall survival (OS) improved between 1997-2006 and 2007-2015; in patients 18-45 years from 50% (95% CI 43-57) to 65% (95% CI 58-72), 46-65 years from 25% (95% CI 18-32) to 46% (95% CI 37-55) and >65 years from 7% (95% CI 2.6-11) to 11% (95% CI 5.9-16) (P < 0.05). Men with Ph-neg B-ALL 46-65 years had inferior OS compared with women (P < 0.01). Standardised mortality ratio was 5.7 (95% CI 5.0-6.3) for patients who survived 5 years from diagnosis. In multivariable analysis, Ph-positive disease was not associated with impaired prognosis but with lower risk of death in 2007-2015.

Conclusions: In a population-based cohort, OS has improved in adult ALL, especially for Ph-positive disease but for middle-aged men with Ph-negative B-ALL outcome was poor. Cure without late toxicity or relapse is still desired.

Keywords: Philadelphia-positive; acute lymphoblastic leukaemia; adult.

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Conflict of interest statement

The authors declare no conflict of interests.

Figures

Figure 1
Figure 1
Philadelphia‐positive disease of tested B‐ALL in different age groups
Figure 2
Figure 2
Overall survival in the total cohort (n = 930) in 1997‐2006 and 2007‐2015. Five‐year overall survival improved in patients 18‐45 y from 50% (95% CI 43‐57) to 65% (95% CI 58‐72), in patients 46‐65 y from 25% (95% CI 18‐32) to 46% (95% CI 37‐55), and in patients >65 y from 7% (95% CI 2.6‐11) to 11% (95% CI 5.9‐16) (= <0.05, log‐rank for pairwise comparison) [Colour figure can be viewed at http://wileyonlinelibrary.com]
Figure 3
Figure 3
Overall survival (OS) in Philadelphia‐negative ALL in 1997‐2006 and 2007‐2015. A, Five‐year OS 1997‐2006 in patients 18‐45 y was 50% (95% CI 43‐58), in patients 46‐65 y 25% (95% CI 18‐33) and in patients >65 7% (95% CI 2‐12). B, Five‐year OS 2007‐2015 in patients 18‐45 y was 65% (95% CI 58‐73), in patients 46‐65 y 42% (95% CI 31‐53) and in patients >65 y 9% (95% CI 4‐15) [Colour figure can be viewed at http://wileyonlinelibrary.com]
Figure 4
Figure 4
Overall survival (OS) in Philadelphia‐positive ALL in 1997‐2006 and 2007‐2015. A, Five‐year OS 1997‐2006 in patients 18‐45 y was 48% (95% CI 30‐67), in patients 46‐65 y 24% (95% CI 7‐41) and in patients >65 y 0%. B, Five‐year OS 2007‐2015 in patients 18‐45 y was 64% (95% CI 47‐81), in patients 46‐65 y 56% (95% CI 40‐72) and in patients >65 y 18% (95% CI 5‐31) [Colour figure can be viewed at http://wileyonlinelibrary.com]

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