Idelalisib

Definition of idelalisib
National Cancer Institute

idelalisib

(i-deh-luh-LIH-sib)
A drug used with rituximab to treat chronic lymphocytic leukemia that has come back. It is also being studied in the treatment of other types of cancer. Idelalisib blocks certain proteins, which may help keep cancer cells from growing and may kill them. It is a type of kinase inhibitor. Also called Zydelig.

Source: NCI Dictionary of Cancer Terms