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. 2020 Aug 17;12(8):2317. doi: 10.3390/cancers12082317

Table 1.

Selection of completed trials investigating the use of immune checkpoint inhibitors for proficient mismatch repair (pMMR) or non-specified microsatellite status (MSI n.s.) colorectal cancer.

Study Nameand/or NTC Phase Study Population Agent(s) End-Points * Results
Anti-VEGF and Chemotherapy + Immune Checkpoint Inhibitors
NCT0237335672 [21] II 1st line mCRC
MSI n.s.
FOLFOX + Pembrolizumab 1: PFS
2: ORR, DCR
mPFS not reached
ORR: 53%, DCR: 100%
MODUL cohort 2 NCT02291289 [22] II 1st line mCRC
BRAF wt,
MSI n.s.
FOLFOX + BV followed by FP + BV vs. FP + BV + Atezolizumab 1: PFS
2: OS
PFS: 7.4 mos vs. 7.2 mos, HR 0.96, p = 0.727
OS: 51%, HR = 0.86, p = 0.28
BACCI NCT02873195 [23] II Pretreated mCRC
MSI n.s.
Capecitabine + BV + Atezolizumab vs. Capecitabine + BV 1: PFS
2: 12 mo OS
mPFS: 4.4 mos vs. 3.3 mos. HR 0.72, p = 0.051
12 mo OS: 43% vs. 52%, HR 0.94, p = 0.4.
NCT01633970 [24] Ib 1st line mCRC
MSI n.s.
FOLFOX + BV + Atezolizumab 1: Safety
2: PFS, OS
mPFS: 14.1 mos
OR: 52%
ATEZOTRIBE NCT03721653 [25] II 1st line mCRC
MSI n.s.
FOLFOXIRI + BV + Atezolizumab vs. FOLFOXIRI + BV 1: PFS
2: ORR, irORR, R0 resection rate
No results posted
Anti-EGFR ± Chemotherapy + Immune Checkpoint Inhibitors
AVETUX NCT03174405 [26] II 1st line mCRC
RAS/BRAF wt
MSI n.s.
FOLFOX + Cetuximab + Avelumab 1: 12 mos PFS
2: PFS, ORR
12 mo PFS: 40%
mPFS: 11.1 mos
ORR: 79.5%
CAVE Eudract 2017-004392-32 [27] II Pretreated mCRC
RAS wt,
MSI n.s.
Cetuximab + Avelumab 1: OS
2: ORR, PFS, Safety
No results posted
Anti-TAMs + Immune Checkpoint Inhibitors
REGONIVO NCT03406871 [28] Ib Preatreatd mCRC
MSI n.s.
Regorafenib + Nivolumab 1: Safety
2: ORR, PFS, OS
ORR: 36%
mPFS: 5.6 mos
mOS: not reached
NCT03712943 [29] I/Ib Preatreatd mCRC
pMMR
Regorafenib + Nivolumab 1: Safety
2: ORR, PFS, OS
ORR: 5%
mPFS: 4.3 mos
mOS: 11 mos
REGOMUNE NCT03475953 [30] II Pretreated mCRC
pMMR
Regorafenib + Avelumab 1: ORR
2: PFS, OS
ORR: 0%
mPFS: 3.6 mos
mOS: 10.8 mos
Radiotherapy + Immune Checkpoint Inhibitors
NCT03104439 [31] II Preatreatd mCRC pMMR SBRT 8 Gy + Nivolumab + Ipilimumab 1: DCR
2: ORR
DCR: 17.5%
ORR: 7.5%

* Primary end-points (1) and authors’ selected secondary end-points (2) are listed. Abbreviations: BV: Bevacizumab; DCR: Disease Control Rate; EGFR: Epidermal Growth Factor Receptor; FOLFOX: 5-FU + Folinic Acid + Oxaliplatin; FP: Fluoropyrimidine; HR: Hazard Ration; irORR: immune-related Overall Response Rate; mCRC: Metastatic Colorectal Cancer; mos: months; ORR: Overall Response Rate; OS: Overall Survival; PFS: Progression Free Survival; SBRT: Stereotactic Body Radiation Therapy; TAMs: Tumor-Associated Macrophages; VEGF: Vascular Endothelial Growth Factor.