Definition

A drug used to treat adults with certain types of ovarian epithelial, fallopian tube, or primary peritoneal cancer. It is also being studied in the treatment of other types of cancer. Zejula blocks an enzyme involved in many cell functions, including the repair of DNA damage. Blocking this enzyme may help keep cancer cells from repairing their damaged DNA, causing them to die. Zejula is a type of PARP inhibitor. Also called niraparib tosylate monohydrate.