Patients with Ang-2 early increased levels (n=42) had a trend for a better outcome (HR for PFS: 0.72 [95%CI:0.48-1.08], P=0.095; HR for OS: 0.77 [95%CI:0.51-1.16], P=0.204) than those with Ang-2 early decreased levels (n=58)....the association of d1 Ang-2 levels with PFS was confirmed...Ang-2 baseline levels as prognostic marker and its early modulation as a predictor of benefit from regorafenib in mCRC patients.