alisertib sodium
(A-lih-SER-tib SOH-dee-um)
A substance that binds to a protein called Aurora A kinase and blocks its activity. Aurora A kinase plays an important role in cell division and may be found on some cancer cells. Blocking this protein may help keep cancer cells from growing and may kill them. Alisertib sodium is being studied in the treatment of some types of cancer. It is a type of protein kinase inhibitor.