Class/mechanism: PARP inhibitor. Niraparib inhibits poly(ADP-ribose) polymerase (PARP) enzymes PARP-1 and PARP-2, which are involved in DNA repair. Inhibiting PARP-1 and PARP-2 may result in formation of PARP-DNA complexes, DNA damage, apoptosis, and cell death. PARP proteins utilize base-excision repair (BER) to identify and repair single strand DNA breaks.
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Diseases for which it is used
Patient drug information
History of changes in FDA indication
- 3/27/2017: Initial approval for the maintenance treatment of adult patients with recurrent epithelial ovarian, fallopian tube, or primary peritoneal cancer who are in complete or partial response to platinum-based chemotherapy.
- 10/23/2019: Approved for patients with advanced ovarian, fallopian tube, or primary peritoneal cancer treated with three or more prior chemotherapy regimens and whose cancer is associated with homologous recombination deficiency (HRD)-positive status. HRD is defined by either a deleterious or suspected deleterious BRCA mutation, or genomic instability in patients with disease progression greater than six months after response to the last platinum-based chemotherapy.
Also known as
- Code name: MK4827
- Brand name: Zejula