Table 2.

Studies evaluating functional high risk

ReferenceStudy population, NER or FHR definitionER, N (%)First-line treatment, N (%)Median OS (early vs late relapse)Factors influencing ER
Baseline factorsTreatment relatedImpact of response
Jimenez-Zepeda et al 201540  Princess
Margaret Cancer Center,
N  =  184 
ER: progressive disease within 12 months from transplant 27 (14) In overall population:
• PI based: 119 (64.7)
• IMiD based: 65 (35.3)
• ASCT: 184 (100) 
20 mo
vs 93 mo (P  = . 001) 
 Favoring
• Thalidomide induction regimens
(P = .04) 
Patients with ER showed a lower ≥ VGPR rate that those with non-ER 
Kumar et al 201823  Center for International
Blood and Marrow Transplant Research database,
N  =  3256 
ER: progressive disease within 24 months from transplant 1239 (38) In overall population:
• Bort based: 748 (22)
• Len based: 342 (10)
• Len-Bort based: 545 (17)
• ASCT: 3256 (100) 
44.7 mo vs 113.7 mo (P < .001) Favoring:
• DS/ISS III (P   =  .02)
Protective:
• Chemo sensitivity (P  =  .007) 
Protective:
• Transplant after 2008 (P  =  .02)
• Post-ASCT maintenance with novel agent (P = .02) 
 
Spencer et al 201921  Australian and New Zealand Myeloma and Related Diseases Registry,
N  =  1320 
FHR: ER + SOR
ER: progressive disease within 12 months of commencing 1st line of therapy
SOR: best response to 1st line
minimal response or stable disease 
FHR: 270 (20.4)
ER: 118 (8.9)
SOE: 152 (11.5) 
N/A ER,
20.2 mo vs 60.7 mo (P < .001)
SOR,
57.8 mo vs 59.3 mo 
ER, favoring:
• Higher ISS (P < .001);
• Higher R-ISS (P < .001);
• Inferior ECOG (P   = .007);
• Hypercalcemia (P  =  .002);
• Renal insufficiency (P < .001);
• Anemia
(P < .001)
SOR, favoring:
• Age >70 y (P  =  .01) 
SOR, favoring:
• Bort based (P  =  .001) 
SOR (MR or SD) in early vs late relapse: 25% vs 11% (P < .001) 
Kastritis et al 202024  Department of Clinical Therapeutics, Athens (Greece),
N  =  297 
ER: progressive disease within 12 months from transplant 43 (14.5) In overall population:
• Bort based: 139 (47)
• Len based: 248 (6)
• Bort + IMiD: 26 (9)
ASCT: 297 (100) 
mOS 18 mo (early relapse) vs 5-years OS 71% (late relapse)
 
Favoring:
• LDH ≥ ULN (P  = .018)
• Hypercalcemia (P  =  .034) 
Protective:
• Consolidation therapy (P < .001)
• Maintenance (P < .048) 
Response rates and depth of response
to induction therapy were not significantly different among those
with early vs later relapse 
Corre et al 202033  Retrospective study, N  =  2627 patients ER: progressive disease within 18 months from initial therapy or within 12 months from transplant 496 (18.9) In overall population:
• PI based: 1129 (43)
• PI + IMiD: 1485 (57)
ASCT: 2627 (100) 
HR 4.40 (P < .0001) Favoring:
• ISS II/III (P < .001)
• High-risk cytogenetics, including del(17p) or t(4;14) or gain 1q or del(1q32) (P < .001)
Protective:
• Trisomy 5 (P  =  .0024) 
 • Poor response to treatment (<VGPR) (P < .001) 
D'Agostino et al 202035  CoMMpass data set,
N = 926 
ER: progressive disease within 18 months from diagnosis 191 (20.6) In overall population
• Bort based: 83 (9)
• Len based: 63 (7)
• Bort + Len based: 319 (34)
• Carf based: 215 (23)
ASCT: 440 (53) 
32.8 mo vs 54 mo (ISS III) vs 65 mo (cytogenetics high risk) Favoring:
TP53 mutation (P < .001)
• High LDH (P = .006)
• L-chain translocation (P = .033)
IGLL5 mutation (P  =  .007) 
Favoring:
• Refractoriness to PIs (P < .001) or IMiDs + PIs (P < .001)
Protective:
• Carfilzomib-based induction (P = .01) 
• Lower ORR (P < .001;
• Poor response to treatment (<VGPR)
(P < .001) 
Bygrave et al 202122  NCRI Myeloma XI, N = 1349 ER: progressive disease within 12 months from transplant 174 (12.9) CTd vs CRd as induction treatment
If ≤ VGPR prior ASCT: VTd
ASCT  =  1349 (100) 
26 mo vs 91 mo (P < .001) Favoring:
• Anemia (P < .0001)
• Low platelet count (P  =  .0001)
• Heavy plasma
cell infiltration (P < .0001)
• Advanced ISS stage (P  =  .0029)
• High-risk genetic (P < .0001) 
Protective:
Len-based maintenance (P  =  .0005) 
 
Soekojo et al 202236  CoMMpass data set,
N = 512 
FHR: primary refractory to induction therapy plus progressive disease within early relapse within 12 months of starting induction therapy without high-risk cytogenetics (ER) FHR: 61 (11) In FHR population:
• PI based: 43 (36)
• IMiD based: 18 (15)
• PI + IMiD: 50 (42.7)
ASCT  =  N/A 
27.6 mo (FHR) vs 44.7 mo (GHR)
vs NR (SR)
(P < .001)
 
Favoring:
mutations affecting the IL-
6/Jak/STAT3 pathway, associated with aberrant mitosis and DNA damage response 
  
ReferenceStudy population, NER or FHR definitionER, N (%)First-line treatment, N (%)Median OS (early vs late relapse)Factors influencing ER
Baseline factorsTreatment relatedImpact of response
Jimenez-Zepeda et al 201540  Princess
Margaret Cancer Center,
N  =  184 
ER: progressive disease within 12 months from transplant 27 (14) In overall population:
• PI based: 119 (64.7)
• IMiD based: 65 (35.3)
• ASCT: 184 (100) 
20 mo
vs 93 mo (P  = . 001) 
 Favoring
• Thalidomide induction regimens
(P = .04) 
Patients with ER showed a lower ≥ VGPR rate that those with non-ER 
Kumar et al 201823  Center for International
Blood and Marrow Transplant Research database,
N  =  3256 
ER: progressive disease within 24 months from transplant 1239 (38) In overall population:
• Bort based: 748 (22)
• Len based: 342 (10)
• Len-Bort based: 545 (17)
• ASCT: 3256 (100) 
44.7 mo vs 113.7 mo (P < .001) Favoring:
• DS/ISS III (P   =  .02)
Protective:
• Chemo sensitivity (P  =  .007) 
Protective:
• Transplant after 2008 (P  =  .02)
• Post-ASCT maintenance with novel agent (P = .02) 
 
Spencer et al 201921  Australian and New Zealand Myeloma and Related Diseases Registry,
N  =  1320 
FHR: ER + SOR
ER: progressive disease within 12 months of commencing 1st line of therapy
SOR: best response to 1st line
minimal response or stable disease 
FHR: 270 (20.4)
ER: 118 (8.9)
SOE: 152 (11.5) 
N/A ER,
20.2 mo vs 60.7 mo (P < .001)
SOR,
57.8 mo vs 59.3 mo 
ER, favoring:
• Higher ISS (P < .001);
• Higher R-ISS (P < .001);
• Inferior ECOG (P   = .007);
• Hypercalcemia (P  =  .002);
• Renal insufficiency (P < .001);
• Anemia
(P < .001)
SOR, favoring:
• Age >70 y (P  =  .01) 
SOR, favoring:
• Bort based (P  =  .001) 
SOR (MR or SD) in early vs late relapse: 25% vs 11% (P < .001) 
Kastritis et al 202024  Department of Clinical Therapeutics, Athens (Greece),
N  =  297 
ER: progressive disease within 12 months from transplant 43 (14.5) In overall population:
• Bort based: 139 (47)
• Len based: 248 (6)
• Bort + IMiD: 26 (9)
ASCT: 297 (100) 
mOS 18 mo (early relapse) vs 5-years OS 71% (late relapse)
 
Favoring:
• LDH ≥ ULN (P  = .018)
• Hypercalcemia (P  =  .034) 
Protective:
• Consolidation therapy (P < .001)
• Maintenance (P < .048) 
Response rates and depth of response
to induction therapy were not significantly different among those
with early vs later relapse 
Corre et al 202033  Retrospective study, N  =  2627 patients ER: progressive disease within 18 months from initial therapy or within 12 months from transplant 496 (18.9) In overall population:
• PI based: 1129 (43)
• PI + IMiD: 1485 (57)
ASCT: 2627 (100) 
HR 4.40 (P < .0001) Favoring:
• ISS II/III (P < .001)
• High-risk cytogenetics, including del(17p) or t(4;14) or gain 1q or del(1q32) (P < .001)
Protective:
• Trisomy 5 (P  =  .0024) 
 • Poor response to treatment (<VGPR) (P < .001) 
D'Agostino et al 202035  CoMMpass data set,
N = 926 
ER: progressive disease within 18 months from diagnosis 191 (20.6) In overall population
• Bort based: 83 (9)
• Len based: 63 (7)
• Bort + Len based: 319 (34)
• Carf based: 215 (23)
ASCT: 440 (53) 
32.8 mo vs 54 mo (ISS III) vs 65 mo (cytogenetics high risk) Favoring:
TP53 mutation (P < .001)
• High LDH (P = .006)
• L-chain translocation (P = .033)
IGLL5 mutation (P  =  .007) 
Favoring:
• Refractoriness to PIs (P < .001) or IMiDs + PIs (P < .001)
Protective:
• Carfilzomib-based induction (P = .01) 
• Lower ORR (P < .001;
• Poor response to treatment (<VGPR)
(P < .001) 
Bygrave et al 202122  NCRI Myeloma XI, N = 1349 ER: progressive disease within 12 months from transplant 174 (12.9) CTd vs CRd as induction treatment
If ≤ VGPR prior ASCT: VTd
ASCT  =  1349 (100) 
26 mo vs 91 mo (P < .001) Favoring:
• Anemia (P < .0001)
• Low platelet count (P  =  .0001)
• Heavy plasma
cell infiltration (P < .0001)
• Advanced ISS stage (P  =  .0029)
• High-risk genetic (P < .0001) 
Protective:
Len-based maintenance (P  =  .0005) 
 
Soekojo et al 202236  CoMMpass data set,
N = 512 
FHR: primary refractory to induction therapy plus progressive disease within early relapse within 12 months of starting induction therapy without high-risk cytogenetics (ER) FHR: 61 (11) In FHR population:
• PI based: 43 (36)
• IMiD based: 18 (15)
• PI + IMiD: 50 (42.7)
ASCT  =  N/A 
27.6 mo (FHR) vs 44.7 mo (GHR)
vs NR (SR)
(P < .001)
 
Favoring:
mutations affecting the IL-
6/Jak/STAT3 pathway, associated with aberrant mitosis and DNA damage response 
  

Bort, bortezomib; Carf, carfilzomib; CTd, cyclophosphamide-thalidomide-dexamethasone; ER, early relapse; GHR, genomic high risk; IL-6, interleukin 6; Len, lenalidomide; mOS, median overall survival; MR, minimal response; N/A, not available; NCRI, National Cancer Research Institute; ORR, overall response rate; SOR, suboptimal response; SR, standard risk; STAT3, signal transducer and activator of transcription 3; ULN, upper limit of normal; VTd, bortezomib-thalidomide-dexamethasone.

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