Types segmentation categorizes therapeutics based on immune system deficiencies: Antibody Deficiencies, Cellular Deficiencies, and Complement Deficiencies. Antibody Deficiencies, such as Common Variable Immunodeficiency (CVID) and X-linked agammaglobulinemia, constitute 55% of the market, driven by IVIG replacement therapies and monoclonal antibody treatments. Cellular Deficiencies, including T-cell and phagocyte disorders like Chronic Granulomatous Disease, represent 30% of the market, with growth tied to cytokine therapies and gene editing technologies. Complement Deficiencies, though less prevalent at 15%, are high-growth areas due to emerging complement inhibitors targeting atypical hemolytic uremic syndrome. Each subtype’s therapeutic demand correlates with disease prevalence and technological advancements. For instance, the rise of personalized medicine in Cellular Deficiencies has expanded treatment options, directly influencing market dynamics. This typology illustrates how mechanistic understanding of immune pathways drives innovation and revenue distribution within the Primary Immunodeficiency Therapeutic segmentation.