denosumab

noun

den·​o·​su·​mab ˌden-ˈō-sə-ˌmab 

: a monoclonal antibody that inhibits the formation and activity of osteoclasts to reduce bone resorption and increase bone mass and that is administered by subcutaneous injection chiefly to treat osteoporosis and reduce bone loss associated with some cancer treatments

Note: Denosumab is marketed under the trademarks Prolia and Xgeva.