PAnitumumab REchallenge Followed by REgorafenib Versus the Reverse Sequence

"regorafenib administered until progression, unacceptable toxicity or patient's refusal followed after progression by panitumumab until further progression, unacceptable toxicity or patient's refusal in RAS and BRAF wt mCRC patients with the following characteristics:~1. previous treatment with, or not considered candidates for, fluoropyrimidine, oxaliplatin, irinotecan and anti-angiogenic agent (bevacizumab or aflibercept);~2. RECIST response or stable disease lasting at least 6 months to a previous first-line anti-EGFR-based treatment;~3. RAS and BRAF wt ct-DNA at the time of screening."

"panitumumab administered until progression, unacceptable toxicity or patient's refusal followed after progression by regorafenib until further progression, unacceptable toxicity or patient's refusal in RAS and BRAF wt mCRC patients with the following characteristics:~1. previous treatment with, or not considered candidates for, fluoropyrimidine, oxaliplatin, irinotecan and anti-angiogenic agent (bevacizumab or aflibercept);~2. RECIST response or stable disease lasting at least 6 months to a previous first-line anti-EGFR-based treatment;~3. RAS and BRAF wt ct-DNA at the time of screening."