GW627368 is primarily used in research settings to study its effects on specific biological pathways, particularly those involving prostaglandin receptors. It is often employed as a selective antagonist to investigate the role of these receptors in various physiological and pathological processes, such as inflammation, pain, and cardiovascular function. Researchers utilize this compound to better understand its potential therapeutic applications, especially in conditions where prostaglandin signaling plays a critical role. Its use helps in the development of targeted therapies for diseases like arthritis, hypertension, and other inflammatory disorders.