The Pirfenidone market growth is led by North America, which holds the largest regional share at 40%, driven by adoption of advanced therapies, robust R&D investments, and favorable regulatory policies. Europe follows with a 30% share, supported by a mature healthcare ecosystem, stringent disease awareness campaigns, and funding for rare disease treatments. The Asia Pacific region is the fastest-growing market, projected to expand at a 12% CAGR, fueled by increasing demographics of chronic lung disease, rising healthcare infrastructure, and government initiatives to improve access to orphan drugs. Latin America and the Middle East & Africa collectively account for 10% of the global market, with growth driven by infrastructure upgrades and partnerships with global pharmaceutical players.