multiple myeloma: high risk cytogenetics

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References 1. Sonneveld P, et al. Blood 2016;127:2955–62; 2. Nooka AK, et al. Am Soc Clin Oncol Educ Book 2016;35:e431–41; 3. Dimopoulos MA, et al. Cancer Treat Rev 2015;41:827–35; 4. Richardson PG, et al. Blood Cancer J 2018;8:109; 5. Lancman G, et al. Clin Adv Hematol Oncol 2017;15:870–9; 6. Castaneda O and Baz R. Acta Medica Academica 2019;48:57–67; 7. Kumar S, et al. Blood 2012;119:2100–5; 8. Bianchi G & Ghobrial IM. Curr Cancer Ther Rev 2014;10:70–9; 9. Brioli A, et al. Br J Haematol 2014;165:441–54; 10. Keats JJ, et al. Blood 2012;120:1067–76; 11. Manier S, et al. Nat Rev Clin Oncol 2017;14:100–13; 12. Saxe D, et al. Int J Lab Hem 2019;41:5–14; 13. NCCN Guidelines Multiple Myeloma V3.2020. Available at: https://www.nccn.org/; 14. Moreau P, et al. Ann Oncol 2017;28 (suppl_4):iv52–61; 15. Palumbo A, et al. J Clin Oncol 2015;33:2863–9; 16. Schmidt TM, et al. Blood Cancer J 2019;9:94; 17. Rajkumar SV. Am J Hematol 2016;91:720–34; 18. Boyd KD, et al. Leukemia 2012;26:349–55; 19. Jian et al. Medicine (Baltimore) 2016;95:e3521 MAT-GLB-2101543 (v1.0) – 04/21 © 2021 sanofi-aventis U.S. LLC MULTIPLE MYELOMA: HIGH RISK CYTOGENETICS The presence of high-risk cytogenetic features has been well documented as a negative prognostic factor and these patients typically have poorer outcomes compared with standard risk patients 1,2 Patients with high-risk cytogenetics are not always captured in clinical trials or real-world studies resulting in subgroup analyses on a relatively small sample size 3–5 Consequently, there is a paucity of data for the targeted treatment of patients with high-risk cytogenetics and randomized trials are needed in these populations 5 Cytogenetic analysis of bone marrow samples by fluorescence in situ hybridization (FISH) is recommend- ed at diagnosis for risk stratification 1,13,14 The IMWG use the following cytogenetic abnormalities identi- fied by FISH to define multiple myeloma with poor prognosis: 1 Nearly all patients with multiple myeloma have one or more genetic aberrations and the pattern of abnormalities can change due to clonal evolution 1,6,7 Intra-clonal heterogeneity may affect treatment response; differential selective pressure of the treatment may result in the disappearance of some clones but not others allowing these to proliferate and cause relapse of disease 8,9 Duplications of entire chromosomes Typically involves chromosomes 3, 5, 7, 9, 11, 15, 19 or 21 Gain 1q is a poor prognostic factor with a negative impact on survival outcomes particularly when there are more than 4 copies present or if it is associated with other high-risk cytogenetic abnormalities A clear definition of a high-risk diagnosis is needed Median overall survival is approximately 3 years vs 7–10 years Patients may acquire additional high risk chromosomal abnormalities throughout courses of treatment that could esult in a more aggressive disease course 8,11 The genomes of patients with high-risk cytogenetics are less stable and show more variation than those with standard risk cytogenetics 10 General population Trial population *Included in the Revised International Staging System for multiple myeloma as high-risk 15 t(14;20) 1% of MM cases t(14;16) 4% of MM cases* del(17/17p) 7% of MM cases* t(4;14) 15% of MM cases* gain(1q) 40% of MM cases Gain of chromosome 1q is commonly found in patients with MM and frequency increases with disease progression 16 The presence of multiple cytogenetic abnormalities further decreases prognosis compared with individual high-risk abnormalities 1,18,19 There is inconsistency in clinical trials in the cut-off used to define the existence of a high-risk abnormality ranging from detection in a single cell to 60% of cells 4,5 Response rates and survival outcomes are lower for patients with genetic abnormalities versus those with standard risk cytogenetics 2,17 Median OS 7–10 years: Trisomies, t(11;14), t(6;14) Genomic instability and heterogeneity are hallmarks of multiple myeloma 1,6 Trisomies ~50% of cases Normal Translocations involving the immunoglobulin heavy-chain gene on chromosome 14 Translocations 40–70% of cases Deletions 7–50% of cases Gains ~40% of cases Duplication of chromosomes or sections Frequently affects chromosome 1q Loss of chromosomes or sections, resulting in haploinsufficiency Typically involves chromosomes 1, 6, 8, 13, 11, 14, 16 or 17 ~50% ~40% 40–70% 40–70% Multiple myeloma: cytogenetic abnormalities 1,6,12 D B C A 1 Initiating mutations Secondary mutations D B C E A 1 PFS 41.9 months Patients with 1q gain at diagnosis: Patients with 4 or more copies of 1q at diagnosis: PFS 34.6 months Patients with 1q + t(4;14), t(14;16) or del(17p) at diagnosis: PFS 25.1 months Overall survival Years 0 1 2 3 4 5 6 7 8 9 10 Median OS 3 years: t(14;16), t(14;20), del(17/17p) Median OS 5 years: t(4;14), gain(1q) Patients without 1q gain at diagnosis: PFS 65.1 months E D B C A 1 F Treatment D B C A 1 No adverse lesions n=451 1 adverse lesion n=289 2 adverse lesions n=113 3 adverse lesions n=16 Survival (months) 0 0.0 0.2 0.4 0.6 0.8 1.0 10 40 60 70 Proportion of patients 50 30 20 FISH standard risk P<0.001 FISH high risk Follow-up from Diagnosis (months) 0 0.0 0.1 0.2 0.3 0.4 0.6 0.5 0.8 0.9 0.7 1.0 12 48 72 Proportion surviving 60 36 24 There remains a detrimental gap between high-risk and standard risk cytogenic patients 5,7

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References1. Sonneveld P, et al. Blood 2016;127:2955–62; 2. Nooka AK, et al. Am Soc Clin Oncol Educ Book 2016;35:e431–41; 3. Dimopoulos MA, et al. Cancer Treat Rev 2015;41:827–35;4. Richardson PG, et al. Blood Cancer J 2018;8:109; 5. Lancman G, et al. Clin Adv Hematol Oncol 2017;15:870–9; 6. Castaneda O and Baz R. Acta Medica Academica 2019;48:57–67;7. Kumar S, et al. Blood 2012;119:2100–5; 8. Bianchi G & Ghobrial IM. Curr Cancer Ther Rev 2014;10:70–9; 9. Brioli A, et al. Br J Haematol 2014;165:441–54;10. Keats JJ, et al. Blood 2012;120:1067–76; 11. Manier S, et al. Nat Rev Clin Oncol 2017;14:100–13; 12. Saxe D, et al. Int J Lab Hem 2019;41:5–14;13. NCCN Guidelines Multiple Myeloma V3.2020. Available at: https://www.nccn.org/; 14. Moreau P, et al. Ann Oncol 2017;28 (suppl_4):iv52–61;15. Palumbo A, et al. J Clin Oncol 2015;33:2863–9; 16. Schmidt TM, et al. Blood Cancer J 2019;9:94; 17. Rajkumar SV. Am J Hematol 2016;91:720–34; 18. Boyd KD, et al. Leukemia 2012;26:349–55; 19. Jian et al. Medicine (Baltimore) 2016;95:e3521

MAT-GLB-2101543 (v1.0) – 04/21© 2021 sano�-aventis U.S. LLC

MULTIPLE MYELOMA:HIGH RISK CYTOGENETICS

The presence of high-risk cytogenetic features has been well documentedas a negative prognostic factor and these patients typically have poorer

outcomes compared with standard risk patients1,2

Patients with high-riskcytogenetics are not always captured in

clinical trials or real-world studies resulting in

subgroup analyses on a relatively small

sample size3–5

Consequently, there isa paucity of data for

the targeted treatment of patients with

high-risk cytogenetics and randomized trials are needed in these

populations5

Cytogenetic analysis of bone marrow samples by �uorescence in situ hybridization (FISH) is recommend-

ed at diagnosis for risk strati�cation1,13,14

The IMWG use the following cytogenetic abnormalities identi-�ed by FISH to de�ne multiple myeloma with poor prognosis:1

Nearly all patients withmultiple myeloma haveone or more geneticaberrations and thepattern of abnormalities can change due toclonal evolution1,6,7

Intra-clonal heterogeneity may affecttreatment response; differential selectivepressure of the treatment may result inthe disappearance of some clones but not others allowing these to proliferate and cause relapse of disease8,9

Duplications ofentire chromosomes

Typically involves chromosomes 3, 5, 7, 9, 11, 15, 19 or 21

Gain 1q is a poor prognostic factor with a negative impact on survival outcomes particularly when there

are more than 4 copies present or if it is associated with other high-risk cytogenetic abnormalities

A clearde�nition of a high-risk

diagnosis is needed

Median overall survival is approximately 3 years vs 7–10 years

Patients may acquire additionalhigh risk chromosomalabnormalities throughout courses of treatment that could esult in a more aggressivedisease course8,11

The genomes of patients with high-risk cytogenetics are less stable and showmore variation than those with standard risk cytogenetics10

General population Trial population

*Included in the Revised International Staging System for multiple myeloma as high-risk15

t(14;20)

1%of MM cases

t(14;16)

4%of MM cases*

del(17/17p)

7%of MM cases*

t(4;14)

15%of MM cases*

gain(1q)

40%of MM cases

Gain of chromosome 1q is commonlyfound in patients with MM and frequency

increases with disease progression16

The presence of multiple cytogenetic abnormalities further decreasesprognosis compared with individual high-risk abnormalities1,18,19

There is inconsistency in clinical trials in the cut-off used tode�ne the existence of a high-risk abnormality ranging fromdetection in a single cell to 60% of cells4,5

Response rates and survival outcomes are lower for patients withgenetic abnormalities versus those with standard risk cytogenetics2,17

Median OS

7–10 years:Trisomies,t(11;14),t(6;14)

Genomic instabilityand heterogeneityare hallmarks ofmultiple myeloma1,6

Trisomies ~50% of cases

Normal

Translocationsinvolving the immunoglobulin heavy-chain gene on chromosome 14

Translocations 40–70% of cases

Deletions 7–50% of cases Gains ~40% of cases

Duplication of chromosomes orsections

Frequently affects chromosome 1q

Loss of chromosomes or sections, resultingin haploinsuf�ciency

Typically involves chromosomes 1, 6, 8, 13, 11, 14, 16 or 17

~50%

~40%

40–70%

40–70%

Multiple myeloma: cytogenetic abnormalities1,6,12

D B

C

A

1Initiating mutations Secondary

mutations

D B

C

EA

1

PFS 41.9months

Patients with 1q gain at diagnosis:

Patients with 4 or morecopies of 1q at diagnosis:

PFS 34.6months

Patients with 1q + t(4;14),t(14;16) or del(17p)

at diagnosis:PFS 25.1

months

Overall survivalYears0 1 2 3 4 5 6 7 8 9 10

Median OS

3 years:t(14;16),t(14;20),

del(17/17p)

Median OS

5 years: t(4;14), gain(1q)

Patients without 1qgain at diagnosis:

PFS 65.1months

E

D B

C

A

1

FTreatment

D B

C

A

1

No adverse lesions n=4511 adverse lesion n=2892 adverse lesions n=1133 adverse lesions n=16

Survival (months)

0

0.0

0.2

0.4

0.6

0.8

1.0

10 40 60 70

Pro

po

rtio

n o

f pa

tien

ts

503020

FISH standard risk

P<0.001

FISH high risk

Follow-up from Diagnosis (months)

00.0

0.1

0.2

0.3

0.4

0.6

0.5

0.8

0.9

0.7

1.0

12 48 72

Pro

po

rtio

n s

urv

ivin

g

603624

There remains a detrimental gap between high-risk andstandard risk cytogenic patients5,7