Used in research and development for treating inflammatory and autoimmune diseases, particularly asthma and other allergic conditions. Targets and neutralizes interleukin-9 (IL-9), a cytokine involved in immune response regulation. Helps reduce airway inflammation and hyperresponsiveness in preclinical models. Serves as a reference standard in bioassays to evaluate the potency and specificity of anti-IL-9 therapeutics. Supports the development of biologics for Th9-mediated diseases.