North America dominates the Erbitux market, representing 35% of global demand, driven by advanced healthcare infrastructure, high adoption of oncology therapies, and strong biopharma investments. Europe follows with 25%, bolstered by favorable reimbursement policies, aging demographics, and mature regulatory frameworks. Asia Pacific is the fastest-growing region, expanding at a CAGR of 8.5%, fueled by rising cancer prevalence, increasing healthcare spending, and improving biosimilar accessibility. Latin America and the Middle East & Africa collectively account for 20%, with growth underpinned by public-private partnerships and pipeline advancements.