North America leads the Carglumic Acid market with a 40% share, driven by advanced healthcare infrastructure, high adoption of orphan drugs, and robust R&D investments. Europe follows closely at 30%, supported by stringent policies for rare diseases, mature biopharma ecosystems, and patient-centric healthcare frameworks. Asia Pacific (20%) is the fastest-growing region, fueled by rising awareness, expanding patient pools, and government initiatives like India’s New Drug Policy and Japan’s orphan drug incentives. Emerging markets in Latin America (5%) and Middle East & Africa (5%) face infrastructure and funding gaps but show potential due to growing chronic disease prevalence and regional healthcare reforms.