NCI Drug Dictionary

The NCI Drug Dictionary contains technical definitions and synonyms for drugs/agents used to treat patients with cancer or conditions related to cancer. Each drug entry includes links to check for clinical trials listed in NCI's List of Cancer Clinical Trials.

DNA-dependent protein kinase inhibitor VX-984
An ATP-competitive inhibitor of the catalytic subunit of DNA-dependent protein kinase (DNA-PK), with potential sensitizing and enhancing activities for both chemo- and radiotherapies. Upon administration, DNA-PK inhibitor VX-984 binds to and inhibits the catalytic subunit of DNA-PK, thereby interfering with the non-homologous end joining (NHEJ) process and preventing repair of DNA double strand breaks (DSBs) caused by ionizing radiation or chemotherapeutic treatment. This increases chemo- and radiotherapy cytotoxicity and leads to enhanced tumor cell death. The enhanced ability of tumor cells to repair DSBs plays a major role in the resistance of tumor cells to chemo- and radiotherapy; DNA-PK plays a key role in the NHEJ pathway and DSB repair.

Synonym:DNA-PK inhibitor VX-984
Code name:VX984