North America dominates the Afatinib Dimaleate market with a 45% share, driven by advanced oncology infrastructure, high adoption of targeted therapies, and robust R&D investments. Europe follows at 25%, fueled by stringent regulatory frameworks ensuring rapid drug approvals and strong healthcare policy support. The Asia Pacific region, growing at the fastest rate (8.5% CAGR), is propelled by rising lung cancer incidence, expanding healthcare coverage in emerging economies, and growing partnerships with global pharma players. Latin America and Middle East & Africa collectively account for 10%, with incremental growth from improving treatment access and government-funded cancer care initiatives.