Chronic lymphocytic leukemia in young (≤ 55 years) patients: A comprehensive analysis of prognostic factors and outcomes

Sameer A Parikh, Kari G. Rabe, Neil Elliot Kay, Timothy G. Call, Wei D Ding, Susan M. Schwager, Deborah A. Bowen, Michael Conte, Diane F Jelinek, Susan L Slager, Tait D. Shanafelt

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

The clinical characteristics and outcomes of younger (≤55 years) patients with chronic lymphocytic leukemia in the era of modern prognostic biomarkers and chemoimmunotherapy are not well understood. Baseline characteristics and outcomes of patients with chronic lymphocytic leukemia ≤55 years who were seen at the Mayo Clinic between January 1995 and April 2012 were compared with those of patients >55 years. The overall survival of patients ≤55 years was compared to that of the age- and sex-matched normal population. The characteristics of 844 newly diagnosed chronic lymphocytic leukemia patients ≤55 years old (median, 50 years) were compared to those of 2324 patients >55 years old (median, 67 years). Younger patients were more likely to have Rai stage I or II disease (P<0.0001), be IGHV unmutated (P=0.002) and express ZAP-70 (P=0.009). These differences became more pronounced when the ≤55 age group was sub-stratified into age ≤45, 46-50 and 51-55 years. After a median follow-up of 5.5 years, 426 (51%) patients ≤55 years old had received treatment, and 192 (23%) had died. The time to treatment was shorter in patients ≤55 years than in those older than 55 years (4.0 years versus 5.2 years; P=0.001) and those ≤55 years had longer survival (12.5 years versus 9.5 years; P<0.0001). However, patients ≤55 years had significantly shorter survival than the age- and sex-matched normal population (12.5 years versus not reached; P<0.0001). Our study is the first comprehensive analysis of younger patients with chronic lymphocytic leukemia in the modern era. Adverse prognostic markers appear more common among young patients. Although the survival of young chronic lymphocytic leukemia patients is longer than that of those >55 years old, their survival relative to the age- and sex-matched normal population is profoundly shortened.

Original languageEnglish (US)
Pages (from-to)140-147
Number of pages8
JournalHaematologica
Volume99
Issue number1
DOIs
StatePublished - Jan 1 2014

Fingerprint

B-Cell Chronic Lymphocytic Leukemia
Survival
Population
Biomarkers

ASJC Scopus subject areas

  • Hematology

Cite this

Chronic lymphocytic leukemia in young (≤ 55 years) patients : A comprehensive analysis of prognostic factors and outcomes. / Parikh, Sameer A; Rabe, Kari G.; Kay, Neil Elliot; Call, Timothy G.; Ding, Wei D; Schwager, Susan M.; Bowen, Deborah A.; Conte, Michael; Jelinek, Diane F; Slager, Susan L; Shanafelt, Tait D.

In: Haematologica, Vol. 99, No. 1, 01.01.2014, p. 140-147.

Research output: Contribution to journalArticle

Parikh, Sameer A ; Rabe, Kari G. ; Kay, Neil Elliot ; Call, Timothy G. ; Ding, Wei D ; Schwager, Susan M. ; Bowen, Deborah A. ; Conte, Michael ; Jelinek, Diane F ; Slager, Susan L ; Shanafelt, Tait D. / Chronic lymphocytic leukemia in young (≤ 55 years) patients : A comprehensive analysis of prognostic factors and outcomes. In: Haematologica. 2014 ; Vol. 99, No. 1. pp. 140-147.
@article{a96d27697a97478b80f57f038d4228cf,
title = "Chronic lymphocytic leukemia in young (≤ 55 years) patients: A comprehensive analysis of prognostic factors and outcomes",
abstract = "The clinical characteristics and outcomes of younger (≤55 years) patients with chronic lymphocytic leukemia in the era of modern prognostic biomarkers and chemoimmunotherapy are not well understood. Baseline characteristics and outcomes of patients with chronic lymphocytic leukemia ≤55 years who were seen at the Mayo Clinic between January 1995 and April 2012 were compared with those of patients >55 years. The overall survival of patients ≤55 years was compared to that of the age- and sex-matched normal population. The characteristics of 844 newly diagnosed chronic lymphocytic leukemia patients ≤55 years old (median, 50 years) were compared to those of 2324 patients >55 years old (median, 67 years). Younger patients were more likely to have Rai stage I or II disease (P<0.0001), be IGHV unmutated (P=0.002) and express ZAP-70 (P=0.009). These differences became more pronounced when the ≤55 age group was sub-stratified into age ≤45, 46-50 and 51-55 years. After a median follow-up of 5.5 years, 426 (51{\%}) patients ≤55 years old had received treatment, and 192 (23{\%}) had died. The time to treatment was shorter in patients ≤55 years than in those older than 55 years (4.0 years versus 5.2 years; P=0.001) and those ≤55 years had longer survival (12.5 years versus 9.5 years; P<0.0001). However, patients ≤55 years had significantly shorter survival than the age- and sex-matched normal population (12.5 years versus not reached; P<0.0001). Our study is the first comprehensive analysis of younger patients with chronic lymphocytic leukemia in the modern era. Adverse prognostic markers appear more common among young patients. Although the survival of young chronic lymphocytic leukemia patients is longer than that of those >55 years old, their survival relative to the age- and sex-matched normal population is profoundly shortened.",
author = "Parikh, {Sameer A} and Rabe, {Kari G.} and Kay, {Neil Elliot} and Call, {Timothy G.} and Ding, {Wei D} and Schwager, {Susan M.} and Bowen, {Deborah A.} and Michael Conte and Jelinek, {Diane F} and Slager, {Susan L} and Shanafelt, {Tait D.}",
year = "2014",
month = "1",
day = "1",
doi = "10.3324/haematol.2013.086066",
language = "English (US)",
volume = "99",
pages = "140--147",
journal = "Haematologica",
issn = "0390-6078",
publisher = "Ferrata Storti Foundation",
number = "1",

}

TY - JOUR

T1 - Chronic lymphocytic leukemia in young (≤ 55 years) patients

T2 - A comprehensive analysis of prognostic factors and outcomes

AU - Parikh, Sameer A

AU - Rabe, Kari G.

AU - Kay, Neil Elliot

AU - Call, Timothy G.

AU - Ding, Wei D

AU - Schwager, Susan M.

AU - Bowen, Deborah A.

AU - Conte, Michael

AU - Jelinek, Diane F

AU - Slager, Susan L

AU - Shanafelt, Tait D.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - The clinical characteristics and outcomes of younger (≤55 years) patients with chronic lymphocytic leukemia in the era of modern prognostic biomarkers and chemoimmunotherapy are not well understood. Baseline characteristics and outcomes of patients with chronic lymphocytic leukemia ≤55 years who were seen at the Mayo Clinic between January 1995 and April 2012 were compared with those of patients >55 years. The overall survival of patients ≤55 years was compared to that of the age- and sex-matched normal population. The characteristics of 844 newly diagnosed chronic lymphocytic leukemia patients ≤55 years old (median, 50 years) were compared to those of 2324 patients >55 years old (median, 67 years). Younger patients were more likely to have Rai stage I or II disease (P<0.0001), be IGHV unmutated (P=0.002) and express ZAP-70 (P=0.009). These differences became more pronounced when the ≤55 age group was sub-stratified into age ≤45, 46-50 and 51-55 years. After a median follow-up of 5.5 years, 426 (51%) patients ≤55 years old had received treatment, and 192 (23%) had died. The time to treatment was shorter in patients ≤55 years than in those older than 55 years (4.0 years versus 5.2 years; P=0.001) and those ≤55 years had longer survival (12.5 years versus 9.5 years; P<0.0001). However, patients ≤55 years had significantly shorter survival than the age- and sex-matched normal population (12.5 years versus not reached; P<0.0001). Our study is the first comprehensive analysis of younger patients with chronic lymphocytic leukemia in the modern era. Adverse prognostic markers appear more common among young patients. Although the survival of young chronic lymphocytic leukemia patients is longer than that of those >55 years old, their survival relative to the age- and sex-matched normal population is profoundly shortened.

AB - The clinical characteristics and outcomes of younger (≤55 years) patients with chronic lymphocytic leukemia in the era of modern prognostic biomarkers and chemoimmunotherapy are not well understood. Baseline characteristics and outcomes of patients with chronic lymphocytic leukemia ≤55 years who were seen at the Mayo Clinic between January 1995 and April 2012 were compared with those of patients >55 years. The overall survival of patients ≤55 years was compared to that of the age- and sex-matched normal population. The characteristics of 844 newly diagnosed chronic lymphocytic leukemia patients ≤55 years old (median, 50 years) were compared to those of 2324 patients >55 years old (median, 67 years). Younger patients were more likely to have Rai stage I or II disease (P<0.0001), be IGHV unmutated (P=0.002) and express ZAP-70 (P=0.009). These differences became more pronounced when the ≤55 age group was sub-stratified into age ≤45, 46-50 and 51-55 years. After a median follow-up of 5.5 years, 426 (51%) patients ≤55 years old had received treatment, and 192 (23%) had died. The time to treatment was shorter in patients ≤55 years than in those older than 55 years (4.0 years versus 5.2 years; P=0.001) and those ≤55 years had longer survival (12.5 years versus 9.5 years; P<0.0001). However, patients ≤55 years had significantly shorter survival than the age- and sex-matched normal population (12.5 years versus not reached; P<0.0001). Our study is the first comprehensive analysis of younger patients with chronic lymphocytic leukemia in the modern era. Adverse prognostic markers appear more common among young patients. Although the survival of young chronic lymphocytic leukemia patients is longer than that of those >55 years old, their survival relative to the age- and sex-matched normal population is profoundly shortened.

UR - http://www.scopus.com/inward/record.url?scp=84892578245&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84892578245&partnerID=8YFLogxK

U2 - 10.3324/haematol.2013.086066

DO - 10.3324/haematol.2013.086066

M3 - Article

C2 - 23911703

AN - SCOPUS:84892578245

VL - 99

SP - 140

EP - 147

JO - Haematologica

JF - Haematologica

SN - 0390-6078

IS - 1

ER -