This document summarizes a presentation on new anti-angiogenic therapies for metastatic colorectal cancer (mCRC). It discusses results from the phase III RAISE study of FOLFIRI +/- Ramucirumab in second-line treatment after FOLFOX + Bevacizumab, and a phase II randomized trial of single agent Famitinib in third-line treatment. The RAISE study found that adding Ramucirumab to FOLFIRI improved overall survival compared to FOLFIRI alone. The Famitinib trial did not find a difference in overall survival compared to placebo, though progression-free survival was prolonged. Biomarkers were identified that could help determine which patients are
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GI ASCO single slide per page 1-17-15
1. New anti-angiogenic therapy in mCRC: FOLFIRI +/- Ramucirumab in
2nd line after FOLFOX + Bevacizumab (phase III: RAISE study) or
single agent Famitinib in 3rd line (phase II randomized with placebo)
Wafik El-Deiry, MD, PhD, FACP
Deputy Director for Translational Research
Co-Leader, Molecular Therapeutics Program
Fox Chase Cancer Center
January 17, 2015
Oral Abstract Session: Cancers of the Colon, Rectum, and Anus
2. Learning Objectives
≒ Understand current use of anti-angiogenic therapy in mCRC
≒ Understand different anti-angiogenic therapeutic targets and
agents in mCRC
≒ Explain and critique the RAISE phase III trial of
Ramicirumab + FOLFIRI used in second line for mCRC
≒ Explain and critique the randomized phase II single agent
Famitinib trial in 3rd line therapy of mCRC
Presented by: Wafik El-Deiry, MD, PhD, FACP
3. Outline of Presentation
≒ Review angiogenesis as a therapeutic target
≒ Describe approved agents and agents under
investigation
≒ Critically assess the Ramicirumab and
Famitinib clinical trials in mCRC
Presented by: Wafik El-Deiry, MD, PhD, FACP
4. Angiogenesis
Presented by: Wafik El-Deiry, MD, PhD, FACP
Clinical Observations in 1960s
2004
2001-
2015
Effectively translated in last two decades
1980s: VEGF
5. By 2010, many inhibitors tried in mCRC, most failed
Presented by: Wafik El-Deiry, MD, PhD, FACP
By 2010, there was no progress in angiogenesis inhibition beyond bevacizumab
Regorafenib, VEGF-trap, Tie2, bFGF, angiopoietin inhibitors were being tested
6. Angiogenesis beyond VEGF in mCRC
Presented by: Wafik El-Deiry, MD, PhD, FACP
Phase III
CORRECT
Trial in mCRC
Phase III
VELOUR
Trial in mCRC
Regorafenib & Aflibercept approved in 2012
Targets include VEGFRs, Ang-2, PDGFR-硫, FGFR
7. Current NCCN Guidelines for mCRC
Presented by: Wafik El-Deiry, MD, PhD, FACP
NCCN
Guidelines
now include
Ziv-aflibercept
in 2nd line and
regorafenib in
3rd line
regimens
9. Ramicurimab
Presented by: Wafik El-Deiry, MD, PhD, FACP
≒ Ramicurimab is a fully
humanized angiogenesis
inhibitory antibody that targets
VEGFR2 and prevents binding
of VEGF
≒ Approved by FDA in April 2014
to treat gastric or GE junction
cancer after it improved OS
≒ Known side-effects include
diarrhea and hypertension
VEGFR2
10. Presented by: Wafik El-Deiry, MD, PhD, FACP
Ramicirumab
was approved
by the FDA in
combination
with docetaxel
for NSCLC
following
progression on
platinum-
based therapy
on December
12, 2014
11. Phase II study of Ramicurimab plus FOLFOX as frontline
therapy in mCRC
Presented by: Wafik El-Deiry, MD, PhD, FACP
12. RAISE Study of Ramicurimab
Presented by: Wafik El-Deiry, MD, PhD, FACP
≒ A randomized, double-
blind, multicenter phase
III of FOLFIRI +
Ramicurimab or
placebo in patients with
mCRC progression
during or following
FOLFOX +
Bevacizumab
N= 536
N= 536
1072 patients
13. RAISE: Ramicurimab + FOLFIRI in 2nd line mCRC
after FOLFOX + Bevacizumab improved OS
Presented by: Wafik El-Deiry, MD, PhD, FACP
≒ Lots of patients with WT KRAS
(~50%) were eligible in both arms
≒ The two arms were well-matched at
baseline
≒ Addition of Ramicurimab to FOLFIRI
prolonged median overall survival by
13.3 months versus 11.7 months for
FOLFIRI alone P = 0.0219
≒ The most common grade 3/4
adverse events with ramicurimab
were neutropenia, fatigue,
hypertension and diarrhea
Time (months)
0 3 6 9 12 15 18 21 24 27 30 33 36 39 42
OverallSurvival
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
Ramicurimab increased OS when added
to FOLFIRI in 2nd line therapy of mCRC
to 13.3 mo vs 11.7 mo for FOLFIRI alone
Ramicurimab also increased PFS when
added to FOLFIRI in 2nd line therapy of
mCRC to 5.7 mo vs 4.5 mo for FOLFIRI
alone (P = 0.0005)
P = 0.0219
536 patients in each arm
14. 3 Studies RAISE, TML, & VELOUR looked at anti-angiogenic
therapy in the second line after first line CT + Bev
Presented by: Wafik El-Deiry, MD, PhD, FACP
FOLFOX + Bev ! FOLFIRI -/+ Ramicurimab
FOLFOX or + Bev ! FOLFOX or -/+ Bev
FOLFIRI FOLFIRI
FOLFOX -/+ Bev ! FOLFIRI -/+ ziv-Aflibercept
RAISE:
TML:
VELOUR:
First Line Second Line
15. TML: Bevacizumab + FOLFIRI in 2nd line mCRC after FOLFOX or
FOLFIRI + Bevacizumab improved OS
Presented by: Wafik El-Deiry, MD, PhD, FACP
≒ Similar design as RAISE
≒ Similar outcomes for PFS/OS extension
FOLFIRI FOLFIRI +
Ramicurimab
FOLFIRI/
FOLFOX
FOLFIRI +
bevacizumab
PFS 4.5 5.7 4.1 5.7
OS 11.7 13.3 9.8 11.2
RAISE arms TML arms
PFS and OS: median survival in months
Not exactly the same: In TML patients had either FOLFOX or FOLFIRI in first line +
bevacizumab and randomized to FOLFOX or FOLFIRI -/+ bevacizumab beyond progression
TML
TML PFSTML OS
16. VELOUR: Aflibercept + FOLFIRI in 2nd line mCRC after FOLFOX +
Bevacizumab improved OS
Presented by: Wafik El-Deiry, MD, PhD, FACP
≒ Similar design as RAISE
≒ Similar outcomes for OS extension
FOLFIRI FOLFIRI +
Ramicurimab
FOLFIRI FOLFIRI +
Aflibercept
PFS 4.5 5.7 4.67 6.90
OS 11.7 13.3 12.06 13.5
RAISE arms VELOUR arms
PFS and OS: median survival in months
Not exactly the same: In VELOUR most patients had no prior Bevacizumab which may
explain slightly lower PFS numbers in RAISE although it didnt seem to impact the OS data
17. VELOUR: Aflibercept + FOLFIRI in 2nd line mCRC after FOLFOX +
Bevacizumab improved OS
Presented by: Wafik El-Deiry, MD, PhD, FACP
In VELOUR less than 1/3 of patients
received prior Bevacizumab whereas in
RAISE all patients received at least 2
doses of Bevacizumab
18. RAISE vs TML vs VELOUR summary of outcomes
Presented by: Wafik El-Deiry, MD, PhD, FACP
RAISE:
TML:
VELOUR:
PFS -/+ OS -/+
4.5/
5.7 m
11.7/
13.3 m
4.1/
5.7 m
9.8/
11.2 m
4.7/
6.9 m
12.1/
13.5 m
≒ Outcomes appear similar although designs not exactly the same
≒ Need randomized comparisons
≒ ? If there may be benefit from ziv or Ram beyond Bev & Ram or ziv (3rd line)
≒ ? If it may be worth trying to combine anti-angiogenics
≒ Was too toxic in RCC but is this universally true with all agent combinations?
FOLFOX + Bev ! FOLFIRI -/+ Ramicurimab
FOLFOX or + Bev ! FOLFOX or -/+ Bev
FOLFIRI FOLFIRI
FOLFOX -/+ Bev ! FOLFIRI -/+ ziv-Aflibercept
First Line Second Line
19. RAISE Comments: Ramicurimab + FOLFIRI in 2nd line mCRC after
FOLFOX + Bevacizumab
Presented by: Wafik El-Deiry, MD, PhD, FACP
≒ Ramicurimab is effective to prolong OS in the second line therapy when combined
with FOLFIRI after progression on FOLFOX plus Bevacizumab
≒ The combination was well-tolerated (with some added toxicities in the combo)
≒ Recap of some possible future directions:
≒ Ramicurimab + FOLFIRI vs Bev + FOLFIRI in 2nd line after FOLFOX + Bev
≒ Ramicurimab + FOLFIRI in patients with prior FOLFOX without Bev
≒ Ramicurimab + FOLFIRI vs anti-EGFR + FOLFIRI in 2nd line in WT KRAS
population
≒ Single agent Ram in patients who cant tolerate chemo
≒ Ram or Ram + cape maintenance
≒ Ram + FOLFIRI vs Aflibercept + FOLFIRI in 2nd line with prior FOLFOX or
FOLFOX + Bev
≒ Need biomarkers to predict best responders vs those less likely to benefit
≒ In 2015 need to assess and compare financial toxicities
20. Ramicurimab in gastric cancerposter at 2015 GI ASCO
Presented by: Wafik El-Deiry, MD, PhD, FACP
Potential to push dose of Ramicirumab to improve outcomes
21. A randomized, double-blind, parallel-group,
placebo controlled, multi-center, phase II
clinical study of Famitinib in the treatment of
advanced metastatic colorectal cancer
Rui-hua Xu*, Lin Shen*, Ke-ming Wang, Gang Wu, Chun-mei Shi, Ke-feng Ding, Li-zhu
Lin, Jin-wan Wang, Jian-ping Xiong, Chang-ping Wu, Jin Li, Yun-peng Liu, Dong Wang,
Yi Ba, Jue-ping Feng, Yu-xian Bai, Jing-Wang Bi, Li-wen MA, Jian Lei and Hao Yu
*Co-Leading Principle Investigator Abstract No.513
Presented by: Rui-hua Xu
24. Famitinib had efficacy in NPC phase II trial
Presented by: Wafik El-Deiry, MD, PhD, FACP
25. Famitinib in mCRC
Presented by: Wafik El-Deiry, MD, PhD, FACP
≒ 154 patients 2:1 randomization; groups well matched
≒ 1.3 mo prolongation of FPS (P = 0.0053) & 59.8% DCR
≒ Breakdown of prior therapies unclear; FOLFOX, FOLFIRI, cetuximab and
bevacizumab are available in China
≒ No difference in OS noted
≒ AEs included proteinuria, neutropenia, HTN, thrombocytopenia, H/F
syndrome and diarrhea
PFS Data:
26. Regorafenib in mCRC
Presented by: Wafik El-Deiry, MD, PhD, FACP
≒ 1052 patients 2:1 randomization; groups well matched
≒ 1.9 mo prolongation of FPS and 6.4 mo (Regoraf) vs 5.0 mo (placebo) OS
OS/PFS Data:
≒ Subgroup analyses supported impact of
Regorafenib on OS including KRAS mutant
mCRC
≒ Lack of demonstrated effect on OS by
Famitinib may be aided if biomarkers are
developed or if combined with other agents
27. Summary: phase III Ramicirumab and phase II Famitinib trials in mCRC
≒ Ramicirumab added to FOLFIRI improves OS in second line for
mCRC after progression on FOLFOX plus bevacizumab
≒ Famitinib does not improve OS in mCRC vs placebo after 2 failed
prior regimens but does prolong PFS
≒ Need to incorporate biomarkers in trial designs to make more sense
of outcomes; are drugs hitting targets/are targets present?
≒ Ramicirumab is comparable in 2nd line to other approved options
≒ Famitinib is not better in 3rd line than approved regimens
≒ Randomized comparisons or combination regimens may or may not
in the future show improved or better outcomes; ? Pushing doses
Presented by: Wafik El-Deiry, MD, PhD, FACP
28. Presented by: Wafik El-Deiry, MD, PhD, FACP
From Wehland et al., Int J Mol Sci, 2013
Possible biomarkers in CRC include
Serum LDH, IL-8, Angiopoietin-2, CECs
Others include VEGF plasma levels,
sVEGFR2, VCAM-1 & E-selectin, sKIT,
HTN, tumor expression of sensitivity or
resistance markers
There are prognostic biomarkers
to consider evaluating:
29. Presented by: Wafik El-Deiry, MD, PhD, FACP
Clarke & Hurwitz, Exp Opin Biol Ther, 2013
The landscape of anti-
angiogenic targets
would appear to have
more opportunities for
target exploitation as
well as testing of novel
sequences and
combinations
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