ARP-100 is primarily used in research settings to study its effects on cellular processes, particularly in cancer biology. It functions as a selective inhibitor of matrix metalloproteinase-2 (MMP-2), an enzyme involved in tumor progression and metastasis. By inhibiting MMP-2, ARP-100 helps researchers understand the role of this enzyme in cancer cell invasion and angiogenesis. This makes it a valuable tool for developing potential therapeutic strategies targeting MMP-2 in various cancers. Additionally, it is utilized in preclinical studies to explore its efficacy in reducing tumor growth and metastasis in animal models.