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.

PI3K/mTOR kinase inhibitor VS-5584
A potent and selective inhibitor of both phosphatidylinositol 3 kinase (PI3K) and mammalian target of rapamycin (mTOR) kinase in the PI3K/mTOR signaling pathway, with potential antineoplastic activity. PI3K/mTOR kinase inhibitor VS-5584 inhibits mTOR kinase and all class I PI3K isoforms. Consequently, this disrupts phosphorylation of substrates downstream of PI3K and mTOR and may result in apoptosis and growth inhibition in susceptible tumor cells. Activation of the PI3K/mTOR pathway promotes cell growth, survival, and resistance to chemotherapy and radiotherapy. mTOR is a serine/threonine kinase downstream of PI3K, which also has PI3K-independent activity. Consequently, this agent may potentially be more potent than an agent that inhibits either PI3K kinase or mTOR kinase. Check for active clinical trials using this agent. (NCI Thesaurus)

Synonym:PI3K/mTOR inhibitor VS-5584
Code name:SB 2343
VS 5584
Chemical structure:
  • 2-pyrimidinamine, 5-[8-methyl-9-(1-methylethyl)-2-(4-morpholinyl)-9H-purin-6-Yl]-2-
  • pyrimidinamine, 5-[8-methyl-9-(1-methylethyl)-2-(4-morpholinyl)-9H-purin-6-Yl]-2- pyrimidinamine