Table 1 Characteristics and outcomes of patients enrolled in the JACLS ALL-02 study (total n = 1138).

From: Risk-adjusted therapy for pediatric non-T cell ALL improves outcomes for standard risk patients: results of JACLS ALL-02

 

n

4yr-EFS (%)

95% CI

Log rank p

4yr-OS (%)

95% CI

Log rank p

All eligible patients

1138

85.4

83.3–87.4

 

91.2

89.6–92.9

 

 NCI-SR

815

88.2

85.7–90.2

<0.0001

94.5

92.7–95.9

<0.0001

 NCI-HR

323

76.4

71.3–80.6

 

83.1

78.5–86.8

 

 ALL-02 SR

456

90.4

87.2–92.8

<0.0001

97.3

95.3–98.5

<0.0001

 ALL-02 HR

543

84.9

81.6–87.7

 

89.3

86.3–91.6

 

 ALL-02 ER

139

66

57.5–73.3

 

78.9

71.1–84.8

 

Prednisolone response

 PGR

1041

87.1

85.0–89.1

<0.001

92.2

90.5–93.8

<0.001

 PPR

97

66.2

56.6–75.8

 

81

73.1–88.9

 

Treatment according to upgraded risk based on BM at day 15

 Upgraded

162

72

64.4–78.3

<0.0001

84.4

77.8–89.2

<0.0001

 Not upgraded

928

89.8

87.8–91.6

 

94.6

92.9–95.9

 

Sex

 Male

599

83.1

79.8–85.9

0.11

91

88.4–93.1

0.38

 Female

539

86.7

83.5–89.3

 

91.5

88.8–93.6

 

Age at diagnosis (years)

 1–9

923

87.5

85.1–89.5

<0.0001

94

92.2–95.3

<0.0001

 10–18

215

73.4

67.0–78.8

 

79.8

73.7–84.6

 

WBC at onset (/μL)

 <10,000

666

86.9

84.1–89.3

0.0005

93.6

91.4–95.2

0.0001

 10,000–50,000

334

84.9

80.5–88.3

 

90

86.2–92.8

 

 50,000–100,000

72

80.5

69.3–88.0

 

87.5

77.4–93.3

 

 ≥100,000

66

68

55.2–77.8

 

78.5

66.4–86.9

 

Immunophenotype

 B cell precursor

1086

85.8

83.4–87.9

<0.0001

92

90.3–93.5

<0.0001

 Mixed/Unclassified

52

63.5

48.9–74.9

 

74.7

60.4–84.5

 

CNS status

 CNS1

949

86

83.8–88.2

0.54

91.7

89.9–93.4

0.4

 CNS2

27

77.6

61.8–93.4

 

88.6

76.4–100

 

 CNS3

23

77.8

60.5–95.0

 

82.1

66.2–98.1

 

 Unknown

139

83

76.6–89.3

 

90.3

85.3–95.3

 

TLP

 TLP+

6

33.3

0–71.1

<0.001

50

10.0–100

0.004

 TLP−

42

87.7

77.6–97.8

 

90

80.7–99.3

 

Cytogenetics/chimeric fusion

 Normal

368

83.8

80.0–87.6

<0.001

90.1

87.0–93.2

<0.001

 Hyperdiploid

222

89.4

85.3–93.5

 

94.9

92.0–97.9

 

ETV6-RUNX1

205

94.4

89.0–96.1

 

97.5

94.0–98.9

 

 Hypodiploid

4

25

0–67.4

 

50

1.0–99.0

 

11q23 rearrangement/KMT2A-related fusion

22

81.3

64.8–97.9

 

85.6

70.6–100

 

 TCF3-PBX1/t(1;19)

85

84.7

77.1–92.4

 

87

79.8–94.2

 

 Other abnormalities

128

74.1

66.5–81.7

 

81

74.2–87.7

 

 Karyotypic failure

104

81.6

73.9–89.3

 

94.2

89.6–98.7

 
  1. EFS event-free survival, CI confidence interval, OS overall survival, NCI National Cancer Institute, SR standard risk, HR high risk, ER extremely high risk, PGR prednisolone good response, PPR prednisolone poor response, BM bone marrow, WBC white blood cell, CNS central nervous system, TLP traumatic lumbar puncture.