This presentation is the intellectual property of the author. Contact them for permission to reprint and/or distribute. Update of AYA Acute Lymphoblastic Leukemia (A.L.L.) Stuart E. Siegel, M.D. Archie Bleyer, M.D. Annual Texas AYA Oncology Conference San Antonio, Texas February 20-22, 2020 12,095 12,069 10091 8,444 1,053 1,581 1,435 3,170 17,922 12,751 9,405 8,503 2,168 1,905 1,433 986 0 3,000 6,000 9,000 12,000 15,000 18,000 Suicide Homicide Neoplasms Heart Disease Chronic Liver Disease Diabetes Mellitus Cerebrovascular Dis. HiV/AIDS Deaths 2005 2017 Number of Deaths of Top 8 Most Common Causes in AYAs (Age 15‐39), excluding Accidents, U.S., 2005 and 2017 Cancer and HIV are the only causes of the top 8 non‐accidental causes that decreased during 2005‐2017. Suicide has dramatically increased. Data Source: NCHS via SEER*Stat 1 2
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Update of AYAAcute Lymphoblastic Leukemia (A.L.L.)
Stuart E. Siegel, M.D.
Archie Bleyer, M.D.
Annual Texas AYA Oncology Conference
San Antonio, Texas
February 20-22, 2020
12,095
12,069
10091
8,444
1,053
1,581
1,435
3,170
17,922
12,751
9,405
8,503
2,168
1,905
1,433
986
0 3,000 6,000 9,000 12,000 15,000 18,000
Suicide
Homicide
Neoplasms
Heart Disease
Chronic Liver Disease
Diabetes Mellitus
Cerebrovascular Dis.
HiV/AIDS
Deaths
2005
2017
Number of Deaths of Top 8 Most Common Causes in AYAs (Age 15‐39), excluding Accidents, U.S., 2005 and 2017
Cancer and HIV are the only causesof the top 8 non‐accidental causes that decreased during 2005‐2017. Suicide has dramatically increased.
Data Source: NCHS via SEER*Stat
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Breast12%
CNS10%
Colorectum7%
Lung6%
NHL5%
AML5%
Soft Tissue Sarcoma
5%
Melanoma4%
Cervix Uteri4%
ALL4%
Bone Sarcoma4%
Stomach3%
Liver2%
Hodgkin Lymphoma
2%
Pancreas2%
Testis2%
Other Cancers23% 2005
Breast12%
CNS11%
Colorectum9%
Cervix Uteri6%
Soft Tissue Sarcoma
5%AML4%Lung
4%
NHL4%
Stomach4%
BoneSarcomas
4%
ALL3%
Melanoma3%
Pancreas2%
Ovary2%
Testis2%
Liver2%
Other Cancers23%
2017
Cancer Death Distribution, U.S. by Type
Data Source: NCHS via SEER*Stat
The Major Increases• Colorectal Cancer• Cervical Cancer• Gastric Cancer• Pancreas Cancer
Other Increases• CNS Tumors• Ovary Cancer
The Major Decreases• Lung• NHL• Melanoma
Other Reductions• ALL• AML
0
100
200
300
400
500
600
700
800
900
1,000
1,100
1,200
1975 1980 1985 1990 1995 2000 2005 2010 2015 2020
Number of
New Cases
Annual Number of New Cases of ALL in AYAs (Age 15‐39), 1975‐2016, U.S.Regressions are linear and 3o polynomial
R2 = 0.61 p < 10‐10
R2 = 0.69 p < 10‐8
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0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2000 2002 2004 2006 2008 2010 2012 2014
All AYAs
Males
Females
Annual Incidence of ALL/LBL in AYAs, 2000‐2014, SEER18
AYA is only age group without a statistically significant decrease in mortality rate.
By 2010, AYAs had 2x the number of deaths in children.
In 1970s, >2x as many children than AYAs died of ALL.
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Annual 5-Year Survival, 1975-2005, SEER
20‐3920‐39
<10<10
10‐1910‐19
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
1975 1980 1985 1990 1995 2000 2005
Survival
Stuck at 39% since 1991
1991‐2005 linear regressions
Age(Years)
p = 0.0003p = 0.0003
p = 0.0004p = 0.0004
p = 0.54p = 0.54
ALL: Survival
AYAs have not had a significant increase in their survival rate since 1991, in contrast to the highly significant improvement in younger patients
Molecular Abnormality in A.L.L.ALL
Inaba H, et al. Acute lymphoblastic leukaemia. Lancet 2013.
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Table 1. Special features of cancers in adolescent and young adult (AYA) patients
Features of acute lymphocytic leukemia in AYA patients compared with children Higher incidence of poor prognostic cytogenetic features such as t(9;22) (PhiladelphiaChromosome) or hypodiploidy Lower incidence of favorable cytogenetic features associated with a favorable outcome such ashigh hyperdiploidy and t(12;21) ETV6‐RUNX1 translocation More likely to be associated with aberrant gene promoter methylationFeatures of breast cancer in AYA patients compared with adultsLower survival rate Worse outcome independent of stage, extent, or type Higher incidence of more aggressive triple‐negative form More likely to be higher grade, poorly differentiated, and less hormone‐sensitive More frequent spread to greater number lymph nodesFeatures of colorectal cancer in AYA patients compared with adults
More advanced disease and poorer prognosis at diagnosis Less responsive to treatment More mucinous histology and greater frequency of signet ring cells Greater frequency of microsatellite instability Lower frequency of loss of heterozygosity at 17p and 18q
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Incidence of Ph‐Like
Leukemia (%)
Age (Years)
30
20
10
00 10 20 30 40 50 60 70
Comparison of the Incidence of All and Ph‐Like Subtype
Incidence of All per 100,000 per Year
1.0
10.0
Child‐hoodALL
AYA ALL
N = 12,372Log scale
0.1
Ph‐Like
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Blood consult: Therapeutic Strategy and complications in the adolescent and young adult with acute lymphoblastic leukemiaTaizo A. Nakano and Stephen P. Hunger
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
U.S.: CCG & CALGB
France
Netherlands
Sweden (EFS not OS)
Great Britain
Finland
Denmark
Italy
Japan
Turkey
Lebanon
Mexico
U.S.: M.D. Anderson Cancer Center
Overall Survivalexcept event‐free survival for Sweden
Pediatric Regimen Adult Regimen
Older Adolescent and Adult ALL: Overall Survival at 2‐12* Years after Diagnosis
*Follow‐Up (Years)7
6
5
5
5
5
5
5
5
2
10
12
3
Reports Comparing Pediatric and Adult Regimen Outcomes in AYAs after Same Follow‐Up Interval*
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The ALL Survival Gap: Switch from Pediatric to Adult Treatment Regimen
52 randomized trials in 20,235 patients
2 randomized regimens>3 randomized regimens
1955 1960 1965 1970 1975 1980 1985 1990 1995
Children’s Cancer Group (CCG) 1955-2000
134 treatment regimens
27 treatment regimens
8662
9404 (4)
9406 (4)
9605 (4)
97059806
908691079201
92029203
92959296
93989297
Pediatric Oncology Group (POG) 1986-2000
4 randomized11 single regimens
Acute Lymphoblastic Leukemia
vs. ~10 randomized trials in adult
patients
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0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
1975 1980 1985 1990 1995 2000 2005 2010
5‐Year Leukemia‐Specific Survival
Age <10
Age 10‐19
Age 20‐29
APC* = 2.25p < 0.0001
APC = 0.60p < 0.0001
APC = 7.17p < 0.0001
APC = 0.33p = 0.39
APC = 0.61p = 0,56
1989
1987
APC = 2.83p < 0.0001
APC = 2.44p < 0.001
1993 2000
ALL: Lack of Progress in 20‐29 Year‐Olds
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
1975 1980 1985 1990 1995 2000 2005 2010
5‐Year Leukemia‐Specific Survival
Age <15APC = 1.8 p < 0.0001
APC = 0.47 p = 0.0002
1992
Joinpoint/Average Annual Percent Change (APC) Analysis of Annual 5‐Year Cancer‐Specific Survival, 1975‐2011, SEER, Age <15, 15‐19 and 20‐29.
Acute Lymphoblastic Leukemia
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0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
1975 1980 1985 1990 1995 2000 2005 2010
5‐Year Leukemia‐Specific Survival
Age <15
Age 15‐19APC = 1.8 p < 0.0001
APC = 0.47 p = 0.0002
APC = 2.2 p < 0.0001
1992
Joinpoint/Average Annual Percent Change (APC) Analysis of Annual 5‐Year Cancer‐Specific Survival, 1975‐2011, SEER, Age <15, 15‐19 and 20‐29.
Acute Lymphoblastic Leukemia
15‐19 year‐olds have had accelerated improvement and reached a survival rate similar to children younger than 15 by 2010.
Data Source: SEER*Stat
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
1975 1980 1985 1990 1995 2000 2005 2010
5‐Year Leukemia‐Specific Survival
Age 20‐29
Age <15
Age 15‐19APC = 1.8 p < 0.0001
APC = 0.47 p = 0.0002
APC = 4.8 p = 0.004 APC = 0.62 p = 0.17
APC = 2.2 p < 0.0001
1990
1992
20‐29 year‐olds have had <10% improvement since 1990 and >45% were still relapsing within 5 years as of 2011.
Joinpoint/Average Annual Percent Change (APC) Analysis of Annual 5‐Year Cancer‐Specific Survival, 1975‐2011, SEER, Age <15, 15‐19 and 20‐29.
Acute Lymphoblastic Leukemia
Data Source: SEER*Stat
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0%
20%
40%
60%
80%
100%
0 5 10 15 20 25 30 35 40 45 50 55 60 65
0%
20%
40%
60%
80%
100%
0 5 10 15 20 25 30 35 40 45 50 55 60 65
0%
20%
40%
60%
80%
100%
0 5 10 15 20 25 30 35 40 45 50 55 60 65
Joinpoint Analysis of ALL+LBL: 5‐Year Cancer‐Specific Survival, SEER18Age 2‐65 Years by Single Year of Age and Successive 5 Calendar Year Intervals
Leukemia Specific
Survival
Age (Years)
30%
23%
16%
Predominantly hyper‐CVAD
Increasingly more pediatric regimen
AYA Survival Cliff
AYA Survival Cliff
Decreasing AYA Survival Cliff
2000‐2004
2005‐2009
2010‐2014
20%
30%
40%
50%
60%
70%
80%
90%
100%
0 5 10 15 20 25 30 35 40 45 50 55 60 65
2010‐2005‐
2000‐
Joinpoint / Average Annual Percent Change (AAPC) Analysis of ALL+LBL: 5‐Year Cancer‐Specific Survival, SEER18
Age 2‐65 Years by Single Year of Age and Era
Leukemia Specific Survival
Age (Years)
30%16%
23%
The AYA survival cliff has progressively shortened, primarily due to increasing survival of 20+ year‐olds and likely due to increased utilization of pediatric regimens.
Age AAPC p‐Value Age AAPC p‐Value Age AAPC p‐Value Age
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Chemotherapy AgentDoseUnit
Pediatric(C10403)
Hyper‐CVAD 2,36
Total Dose
Cyclophosphamide mg/m2 3,000 7,200
Anthracycline (Dox Equiv) mg/m2 158 200
Prednisone mg 5,400 36,000
Dexamethasone mg 70 1,280
Methylprednisolone mg 0 1,200
Vincristine mg 68 88
Cytarabine mg/m2 1,800 48,000
6‐Mercaptopurine mg/m2 58,380 109,500
Methotrexate IV mg/m2 500 5,800
Methotrexate IT mg 132 48‐192^
Cytarabine IT mg 70 400‐1600^
Hydrocortisone IT mg 0 240
Cranial radiation Gy 0‐12^ 0‐30^
Rituximab (CD20+) mg/m2 0 3,000
17,500 0* ‐ 20,000
840
2,160
0
0
6‐Thioguanine mg/m2
mg/m2Methotrexate PO
Asparaginase (Pegylated) IU/m2
^depending on CNS status at diagnosis *No asparaginase for LBL patients
CNS Toxicity
in Pediatric
in Hyper‐CVAD
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0 2 4 6 8
0.0
0.2
0.4
0.6
0.8
1.0
AALL0031 (n=44)Historical Controls (n=56)
P = 0.0062
Event‐Free Survival by Cohort 1/2, 3/4 vs. 5
0 1 2 3
0.0
0.2
0.4
0.6
0.8
1.0
Years
Even
t‐Free
Survival Probab
ility
Cohort 1/2 (n=17)Cohort 3/4 (n=22)Cohort 5 (n=44)
P = 0.0178 Even
t‐Free
Survival Probab
ility
Imatinib with Chemotherapy Improves Early OutcomeFor Childhood Ph+ ALL (AALL0031)
AALL0031 Cohort 5 vs. Historical Control
Kirk Schultz, JCO
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0 1 2 3 4 5
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0 1 2 3 4 5
Age <15 Age 15‐39
Relative Survival
Years after Diagnosis
Survival during 2000‐2016 of All A.L.L. Patients and Those Registered in SEER as Ph+
All A.L.L. Patients Ph+ Patients
N = 5,110
N = 2,140N = 48
N = 94
• Ph+ patients began to be registered in SEER in 2010 but only a fraction of them have been registered.• As of 2016, only 4% of the ALL AYA patients in SEER18 were identified as Ph+.• Thus, there are too few Ph+ patients to expect their exclusion to significantly change the overall ALL survival curve.• The inclusion of Ph+ patients inflates the 5‐year all‐patient survival rate in comparison to rates that exclude Ph+ patients.• Hence, the survival rates for SEER data would be higher if Ph+ patients were excluded.
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Newer Additions to AYA Acute Lymphoblastic Leukemia Therapy