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Fighting a Smarter War On Colon Cancer: John L. Marshall, MD Angiogenesis inhibition through all lines of therapy Tel: (202) 444-0275 Fax: (202) 444-1229 http://lombardi.georgetown.edu/GI
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Stakeholder Motivation Stakeholders FDA CMS/Payers NCI/CTEP PhRMA Community Onc Academic Onc PatientsPriority/Agenda Safety and Efficacy Cost Control/Value Cure Cancer Markets, ROI Efficient/Quality Care Clinical Trial Accrual Cure/Benefit/Altruism
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2012 ESMO Guidelines: Sequence of Treatment by Line Schmoll et al. Ann Oncol. 2012;23:2479-2516.
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4 A. Friedman and N. Perrimon, Cell 128, January 26, 2007 Pathway vs. Network signaling Network “Chaotic” Pathway “Newtonian”
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The Nature of the Disease
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Multiple signaling pathways activated in CRC Multiple pathways implicated in CRC, including: 1–3 –EGF / EGFR –VEGF / VEGFR –PDGF / PDGFR –FGF / FGFR –Downstream pathways: RAS–RAF–MEK–ERK PI3K–PTEN–AKT–mTOR Kopetz et al showed that several compensatory pathways are activated during therapy with bevacizumab + FOLFIRI 3 Provides rationale for using a multitargeted agent following progression 1.Macarulla T et al. Clin Colorectal Cancer 2006 2.Siena S et al. J Natl Cancer Inst 2009 3.Kopetz S et al. J Clin Oncol 2010 Figure adapted from Siena S et al 2009 2
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CORRECT study design Multicenter, randomized, double-blind, placebo-controlled, phase III –2:1 randomization –Strat. factors: prior anti-VEGF therapy, time from diagnosis of mCRC, geographical region Global trial: 16 countries, 114 active centers –1,052 patients screened, 760 patients randomized within 10 months Secondary endpoints: PFS, ORR, DCR Tertiary endpoints: duration of response / stable disease, QOL, pharmacokinetics, biomarkers mCRC after standard therapy RANDOMIZATIONRANDOMIZATION RANDOMIZATIONRANDOMIZATION Regorafenib + BSC 160 mg orally once daily 3 weeks on, 1 week off Placebo + BSC 3 weeks on, 1 week off 2 : 1 Primary Endpoint: OS 90% power to detect 33.3% increase (HR=0.75), with 1-sided overall =0.025 Primary Endpoint: OS 90% power to detect 33.3% increase (HR=0.75), with 1-sided overall =0.025
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CORRECT Primary Endpoint: Overall Survival 1.00 0.50 0.25 0 0.75 200100500150300250400350450 Days From Randomization Survival Distribution Function Placebo (n = 255) Regorafenib (n = 505) Median 6.4 months 5.0 months 95% CI 5.9-7.3 4.4-5.8 Hazard ratio: 0.77 (95% CI, 0.64-0.94) 1-sided P = 0.0052 Placebo Primary endpoint met prespecified stopping criteria at interim analysis. (1-sided P<0.009279 at approximately 74% of events required for final analysis). Grothey A et al. Lancet. 2013;381:303-312. Reprinted with permission from Elsevier. Regorafenib
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1.00 0.50 0.25 0 0.75 200100500150300250350 Days From Randomization Survival Distribution Function Placebo (n = 255) Regorafenib (n = 505) RegorafenibPlacebo Median 1.9 months 1.7 months 95% CI 1.9-2.1 1.7-1.7 Hazard ratio: 0.49 (95% CI, 0.42-0.58) 1-sided P<0.000001 Grothey A et al. Lancet. 2013;381:303-312. Reprinted with permission from Elsevier. CORRECT Secondary Endpoint: Progression-Free Survival
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CORRECT: Common Adverse Events 1.Grothey A, et al. Lancet. 2012. [epub]. Treatment-related adverse events occurring in >10% of patients in either group from start of treatment to 30 days after end of treatment Regorafanib (n=500)Placebo (n=253) Any GrGr 3Gr 4Any GrGr 3Gr 4 Fatigue, n (%) 237 (47)46 (9)2 (<1)71 (28)12 (5)1 (<1) Hand-foot skin reaction, n (%) 233 (47)83 (17)019 (8)1 (<1)0 Diarrhea, n (%) 169 (34)35 (7)1 (<1)21 (8)2 (1)0 Anorexia, n (%) 152 (30)16 (3)039 (15)7 (3)0 Voice changes, n (%) 147 (29)1 (<1)014 (6)00 Hypertension, n (%) 139 (28)36 (7)015 (6)2 (1)0 Oral mucositis, n (%) 136 (27)15 (3)09 (4)00 Rash or desquamation, n (%) 130 (26)29 (6)010 (4)00 Nausea, n (%) 72 (14)2 (<1)028 (11)00 Weight loss, n (%) 69 (14)006 (2)00 Thrombocytopenia, n (%) 63 (13)13 (3)1 (<1)5 (2)1 (<1)0
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First LineSecond Line Continued Beyond First Progression Trial AVF2107 1,2 (n=411 vs 402) E3200 3 (n=285 vs 287) ML18147 4 (n=410 vs 409) TreatmentIFL vs IFL + Bev FOLFOX4 vs FOLFOX4 + Bev CT* vs CT* + Bev OS, mos P value HR 15.6 vs 20.3 <0.001 0.66 10.0 vs 12.9 0.001 0.75 9.8 vs 11.2 0.0057 Unstratified HR: 0.81 PFS, mos P value HR 6.2 vs 10.6 <0.001 0.54 4.7 vs 7.3 <0.0001 0.61 4.4 vs 5.7 <0.0001 Unstratified HR: 0.68 Summary of Survival From Pivotal Phase III Bevacizumab Studies Data represent a summary of reported data and are not intended for cross-trial comparisons. 1. Hurwitz, et al. N Engl J Med. 2004;350:2335-2342. 2. Hurwitz, et al. Oncologist. 2009;14:22-28. 3. Giantonio, et al. J Clin Oncol. 2007;25:1539-1544. 4. Bennouna J, et al. Lancet Oncol. 2012;pii: S1470-2045(12)70477-1. *CT= Fluoropyrimidine + oxaliplatin-containing chemotherapy or Fluoropyrimidine + irinotecan-containing chemotherapy.
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ML18147: Randomized, Open-Label, Phase III Study of Bevacizumab + Chemotherapy Beyond Progression in Bevacizumab-Treated mCRC Stratification: –First-line chemotherapy (oxaliplatin-based, irinotecan-based), first-line PFS (≤ or >9 months), time from last dose of bevacizumab (≤ or > 42 days), and ECOG PS (0, ≥1) Primary endpoint: OS post progression Secondary endpoints: PFS post progression, ORR post progression Bennouna J, et al. Lancet Oncol. 2012;pii: S1470-2045(12)70477-1. PD Fluoropyrimidine-based chemotherapy until PD Bevacizumab 5 mg/kg every 2 weeks or 7.5 mg/kg every 3 weeks + Fluoropyrimidine-based chemotherapy until PD mCRC treated with Bev + standard first-line chemotherapy (n=820) Randomization – switch chemotherapy: Oxaliplatin irinotecan Irinotecan oxaliplatin Chemotherapy options: Fluoropyrimidine + oxaliplatin-containing chemotherapy Fluoropyrimidine + Irinotecan-containing chemotherapy
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ML18147: Demographic and Baseline Characteristics – Well Balanced CharacteristicFluoropyrimidine- based chemotherapy alone (n=411) Bev + Fluoropyrimidine- based chemotherapy (n=409) Sex, male, %6365 Age, median years63 ECOG status, % 04344 15251 255 First-line PFS, % ≤9 months5654 >9 months4446 Bennouna J, et al. Lancet Oncol. 2012;pii: S1470-2045(12)70477-1.
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Fluoropyrimidine- based chemotherapy alone (n=411) Bev + Fluoropyrimidine- based chemotherapy (n=409) First-line chemo, % Irinotecan based5859 Oxaliplatin based4241 Duration from last bevacizumab dose to randomization, % ≤42 days77 >42 days23 Liver metastasis only, % No7173 Yes2927 Number of organs with metastasis, % 13936 >16164 ML18147: Demographic and Baseline Characteristics – Well Balanced (Cont.)
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ML18147: Second-line Chemotherapy During Study – Physician’s Choice Second-line Chemotherapy Regimen, % Fluoropyrimidine-based chemotherapy alone (n=407) Bevacizumab + Fluoropyrimidine-based chemotherapy (n=407) sFOLFIRI1416 XELIRI12 LV5FU2 + CPT11 7 7 FOLFOX499 sFOLFOX499 FOLFOX61316 FUFOX 9 6 XELOX 11 14 Other regimens16 12 sFOLFIRI=simplified fluorouracil 400 mg/m 2 intravenous bolus and 2400 mg/m 2 over 46 h, folinate 400 mg/m 2 intravenously, and irinotecan 180 mg/m 2 intravenously on day 1 every 2 weeks. LV5FU2 CPT11=fluorouracil 400 mg/m 2 intravenous bolus and 600 mg/m 2 (central venous line) over 22 h on days 1, 2, 15, and 16, folinate 200 mg/m 2 intravenously on days 1, 2, 15, and 16, and irinotecan 180 mg/m 2 intravenously on days 1 and 15 every 4 weeks. FOLFOX4=fluorouracil 400 mg/m 2 intravenous bolus and 600 mg/m 2 intravenously over 22 h on days 1 and 2, folinate 200 mg/m 2 intravenously on days 1 and 2, and oxaliplatin 85 mg/m 2 intravenously on day 1 every 2 weeks. sFOLFOX4=simplified folinate 400 mg/m 2, fluorouracil 400 mg/m 2 intravenous bolus, fluorouracil 2400 mg/m 2 continuous infusion (over 46 h), and oxaliplatin 85 mg/m 2 on day 1 every 2 weeks. FOLFOX6=fluorouracil 400 mg/m 2 intravenous bolus and 2400 mg/m 2 intravenously over 46 h on days 1 and 15, folinate 400 mg/m 2 intravenously on days 1 and 15, and oxaliplatin 100 mg/m 2 intravenously on days 1 and 15 every 4 weeks. FUFOX=fluorouracil 2000 mg/m2 over 22 h (central venous line) on days 1, 8, 15, and 22, folinate 500 mg/m 2 intravenously on days 1, 8, 15, and 22, and oxaliplatin 50 mg/ m 2 intravenously on days 1, 8, 15, and 22 every 5 weeks. XELIRI=capecitabine 800 mg/m 2 orally twice daily on days 1–14 and 22–35, and irinotecan 200 mg/m 2 intravenously on days 1 and 22 every 6 weeks. XELOX=capecitabine 1000 mg/m 2 orally twice daily on days 1–14 and 22–35, and oxaliplatin 130 mg/m 2 intravenously on days 1 and 22 every 6 weeks. *Six of 409 patients in the bevacizumab and chemotherapy group and four of 411 in the chemotherapy group were not given any treatment; however, four patients in the Bevacizumab and chemotherapy group were misreported as having been given chemotherapy. Bennouna J, et al. Lancet Oncol. 2012;pii: S1470-2045(12)70477-1.
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ML18147: Overall Survival (OS) a – ITT Population OS Estimate Time, Months 1.0 0.8 0.6 0.4 0.2 0 0612182430384248 Fluoropyrimidine-based chemotherapy alone (n=410) Bev + Fluoropyrimidine-based chemotherapy (n=409) 9.811.2 Unstratified b HR: 0.81 (95% CI: 0.69-0.94) P=0.0057 (log-rank test) a From randomization. b Primary analysis method. Bennouna J, et al. Lancet Oncol. 2012;pii: S1470-2045(12)70477-1. 410 409 293 328 162 189 51 64 24 29 7 13 3434 2121 0000 Number at risk Fluoropyrimidine-based Chemotherapy alone Bev+Fluoropyrimidine-based Chemotherapy
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ML18147: Secondary Endpoints PFS Estimate Time, Months 1.0 0.8 0.6 0.4 0.2 0 06121824303842 4.15.7 a From randomization. b Primary analysis method. Bennouna J, et al. Lancet Oncol. 2012;pii: S1470-2045(12)70477-1. Unstratified b HR: 0.68 (95% CI: 0.59-0.78) P<0.0001 (log-rank test) 410 409 119 169 20 45 6 12 4545 0202 0202 0000 PFS a – ITT Population There was no significant difference in response rate. Fluoropyrimidine-based chemotherapy alone (n=410) Bev + Fluoropyrimidine-based chemotherapy (n=409) Number at risk Fluoropyrimidine-based Chemotherapy alone Bev+Fluoropyrimidine-based Chemotherapy
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18 What about VEGF + EGFR? Bond-2 vs CAIRO 2 and PACCE 18
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“Bond-2” C225 Alone C225 + Bev PValue C225 + CPT-11 C225 + CPT-11 + Bev P Value PR11%23%0.0523%38%0.03 TTP 1.5 mo 5.6 mo >0.01 4.1 mo 7.9 mo >0.01 OS 6.9 mo NR- 8.6 mo NR-
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Kaplan-Meier estimates of time to tumor progression: arm A (cetuximab, bevacizumab, irinotecan) versus arm B (cetuximab, bevacizumab). Saltz L B et al. JCO 2007;25:4557-4561 ©2007 by American Society of Clinical Oncology
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Kaplan-Meier estimates of survival: arm A (cetuximab, bevacizumab, irinotecan) versus arm B (cetuximab, bevacizumab). Saltz L B et al. JCO 2007;25:4557-4561 ©2007 by American Society of Clinical Oncology
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22 Colon Cancer is more than one disease kRAS Wild Type kRAS mutant MSI-High MSS + EGFR Agents - EGFR Agents ? No 5FU 50-60% 40-50% 15-20% 80-85% And of course it is very many more than the 4 sub-groups above
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Clinical Research 2.0
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AgentHR$ Cost/Month (÷100) Toxicity (G1+2) * (G3+4) # Patients QOL/UtilityScore Pass/Fail Imatinib vs IFN CML 0.17 55.900.67 Nilotinib vs Imat CML 0.8 76.400.17 Imatinib GIST 0.4 55.901.22 Erlotinib vs Chemo Mut NSCL 0.75 52.800.71 Erlotinib Pancreas 0.82 52.8011.9 Bevacizumab 2 nd line CRC 0.74 22.900.8 Aflibercept 2 nd line CRC 0.79 ????-3.0 Value Metric
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Finding Value Come together Listen to each other Respect what we hear Find the common threads Weave a new fabric - provide global healthcare with value
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Engaging the 97% Better education/information Incentives for patients and providers – No added incentives for delivering SOC – Honor our “soldiers” in the war on cancer Recognized the shared investment in research – Docs, hospitals, NCI, Industry, Payers, Patients Target “substantial therapeutic benefit” – “Breakthrough Designation” Reduce concept to approval time line Embrace the emerging markets
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Fundamental Shifts In Cancer Care Yesterday Consumption Individual Practices Rich Countries Microscope Safety and Efficacy Large trials 1.4 months QOL Patient as a “Subject” Chaotic Data Collection Institutional IRBs National ApprovalsTomorrow Outcomes Healthcare Systems All Countries Gene Profile Value Small trials “Substantial Improvement” Patient Reported Outcomes Patient as a “Partner” Standard Data Collection Central/National IRBs Global Approvals
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