SAR407899 hydrochloride is primarily investigated for its potential therapeutic applications in the field of oncology. It functions as a selective inhibitor of Rho-associated protein kinase (ROCK), which plays a critical role in regulating cell motility, proliferation, and survival. By targeting ROCK, this compound has shown promise in inhibiting tumor growth and metastasis in preclinical studies, particularly in cancers where ROCK signaling is dysregulated. Additionally, it is being explored for its potential to enhance the efficacy of existing cancer therapies, such as chemotherapy and immunotherapy, by modulating the tumor microenvironment. Research is ongoing to evaluate its safety and effectiveness in clinical settings, with the aim of developing it as a novel treatment option for various malignancies.