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Verona, 14 Giugno 2019
Colorectal Cancer:
Poster Reviewer
Dr.ssa Elena Ongaro
SOC Oncologia Medica e Prevenzione Oncologica
Centro di Riferimento Oncologico (CRO), IRCCS, Aviano
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Agenda
• Early-stage disease
• Hitting targets
• Immunotherapy
• Special Populations
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Agenda
• Early-stage disease • #3513; #3519; #3518
• Hitting targets
• Immunotherapy
• Special Populations
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#3513 IDEA France trial: Immunoscore®
1322 pts
Pages et al. #3513
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#3513 IDEA France trial: Immunoscore®
Pages et al. #3513
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#3519 IDEA France trial: Tumor Deposits
Delattre et al. #3519
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#3519 IDEA France trial: Tumor Deposits
Delattre et al. #3519
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#3518 ctDNA
Tie et al. #3518
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#3518 ctDNA: prognostic significance
Tie et al. #3518
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#3518 ctDNA: role of MAF?
Tie et al. #3518
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Agenda
• Early-stage disease
• Hitting targets • #3509; #3511; #3526; #3527; #3580; #3538
• Immunotherapy
• Special Populations
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MGMT-deficiency
Prevalence: ≈40%
MGMT
promoter hypermethylation/loss of IHC expression
MGMT loss of expression
Failure of repair of O6-meG DNA adducts
chemosensitivity
to alkylating agents
Amatu et al, Clin Cancer Res 2013; Hochauser et al, Mol Can Ther 2013; Pietrantonio et al, Ann Oncol 2014; Pietrantonio et al, Target Oncol 2016;Amatu et al, Ann Oncol 2016; Morano et al, Ann Oncol 2018
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#3509 CAPTEM trial
Pietrantonio et al. #3509
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#3509 CAPTEM trial: negative but..
Pietrantonio et al. #3509
TRIAL IN PROGRESS:
NIVOLUMAB Plus IPILIMUMAB and TEMOZOLOMIDE in Microsatellite Stable, MGMT Silenced Metastatic Colorectal Cancer (MAYA)
NCT03832621
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#3511 VOLFI trial: final results
All Patients
BRAF mutants Left sided Right sided
Geissler et al. #3511; Modest et al #3530
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#3511 VOLFI trial: final results
Geissler et al. #3511
PFS OS
• The trial met its primary endpoint, but failed its secondary endpoints of PFS and OS • Impressive depth of response observed • BRAF mutated?
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#3580 EPIC trial:
Sobrero et al. #3580
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#3538 Lenvatinib and #3527 Apatinib
Shoji et al. #3538
mCRC 2L ECOG 0-2
Apatinib 500 mg qd
q28 until PD
Wang et al. #3527
N=48
ORR 4 (8.3%)
DCR 26 (60.4%)
mPFS 4.7 mo (95% CI 3.7-5.9)
mOS 9.7 mo (95% CI 5.9-13.6)
Apatinib monotherapy showed promising efficay and manageble toxicities.
Phase III trial is warranted.
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Agenda
• Early-stage disease
• Hitting targets
• Immunotherapy • #3512; #3514; #2522; #3521
• Special Populations
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#3512 CCTG CO.26 trial
Chen et al. #3512
PFS OS
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#3512 CCTG CO.26 trial: TMB
Chen et al. #3512
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#3514 Nivo+Ipi+RT
Parikh et al. #3514
40 pts 2L
Target lesions: not irradiated ones
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#3514 Nivo+Ipi+RT: results
Parikh et al. #3514
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#2522 REGONIVO trial: design
Fukuoka et al. #2522
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#2522 REGONIVO trial
Fukuoka et al. #2522
CRC: mPFS 6.3 mo
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#3521 CHECKMATE 142: update
Lenz et al. #3521
ORR 60%
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Agenda
• Early-stage disease
• Hitting targets
• Immunotherapy
• Special Populations • #3534; #3536; #3541
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#3534 Pooled TRIBE and TRIBE2: impact of gender
Zucchelli et al. #3534
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#3536 Pooled TRIBE and TRIBE2: impact of age
Marmorino et al. #3536
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#3541 FIRE-3: effect of patient age
Heinemann et al. #3541
≤ 65 years N ORR (%)
p PFS (months)
p (HR)
OS (months)
P (HR)
FOLFIRI + Cet 104 75.6 0.08
11.2 0.42 1.10
33.1 0.01 0.68
FOLFIRI + Bev 105 63.0 10.2 24.8
≤ 70 years N ORR (%)
P PFS (months)
P (HR)
OS (months)
P (HR)
FOLFIRI + Cet 136 79.1 0.02
10.7 0.52 1.10
33.3 0.02 0.73
FOLFIRI + Bev 150 65.2 10.5 27.5
> 70 years N ORR (%)
p PFS (months)
p (HR)
OS (months)
P (HR)
FOLFIRI + Cet 63 72.7 0.28 8.8 0.90 23.6 0.25
FOLFIRI + Bev 51 61.9 10.4 0.98 23.8 0.67
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Take home messages
• Immunoscore confirms to be a prognostic factor • Tumor deposits should be considered and implemented in nodes count
potentially practice changing • ctDNA is a strong predictor of minimal residual disease
• 2 new drugs in evaluation for mCRC
• TMB new biomarker? • Regorafenib+nivolumab demonstrated impressive results
• Careful evaluation of toxicities for females and older patients is needed