Cathepsin G inhibitor is primarily used in research settings to study the role of cathepsin G in various biological processes. It is particularly valuable in understanding inflammation and immune responses, as cathepsin G is a protease involved in these pathways. By inhibiting this enzyme, researchers can explore its impact on conditions such as arthritis, chronic obstructive pulmonary disease (COPD), asthma, and other inflammatory disorders. Additionally, it aids in investigating the enzyme's role in cancer progression, as cathepsin G is known to influence tumor growth and metastasis. The inhibitor also supports studies on cardiovascular diseases, including thrombosis and heart disease risk, due to cathepsin G's involvement in coagulation and vascular processes. It serves as a tool in drug development, helping to identify potential therapeutic targets for diseases linked to cathepsin G activity.