Renascience Inc. engages in the development and commercialization of pharmaceuticals and medical devices in Japan. The company is developing RS5614, a PAI-1 inhibitor product candidate for use in the treatment of chronic myeloid leukemia, malignant melanoma, non-small cell lung cancer, novel coronavirus infections, and FGF23-related hypophosphatemic rickets that is in Phase 3 clinical trials; RS5441, a PAI-1 inhibitor for use in dermatological diseases that is in Phase I clinical trials; and RS8001, a water-soluble vitamin for use in the treatment of premenstrual syndrome/premenstrual dysphoric mood disorder, autism spectrum disorder, and menopausal disorder, which is in Phase 2 clinical trials. It is also developing RS9001, a disposable ultrafine endoscope; artificial intelligence based medical solutions; and diagnostic solutions. The company was incorporated in 2000 and is headquartered in Tokyo, Japan.