CDD-1115 is a potent and selective BMPR2 inhibitor, with an IC50 of 1.8 nM and a Kiapp of 6.2 nM. It effectively suppresses gene expression mediated by bone morphogenetic proteins (BMPs). BMPs regulate cellular processes in various tissue types, such as the kidneys, skeletal muscle, heart, and reproductive organs, and can induce ectopic bone formation.