Mecbotamab is a humanized IgG1-κ antibody targeting to AXL receptor tyrosine kinase (AXL). Mecbotamab can serves as a conditionally active biologic (CAB), which can be conjugated with MMAE (HY-15162) via a cleavable linker, to form ADC Mecbotamab vedotin (BA3011)^[1][2].