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-beta Inhibitor SAR260301
An orally bioavailable inhibitor of the class I phosphatidylinositol 3-kinase (PI3K) beta isoform with potential antineoplastic activity. PI3K beta inhibitor SAR260301 selectively inhibits PI3K beta kinase activity in the PI3K/Akt/mTOR pathway, which may result in apoptosis and growth inhibition in PI3K beta-expressing and/or phosphatase and tensin homolog (PTEN)-deficient tumor cells. Dysregulation of the PI3K/Akt/mTOR pathway is frequently found in solid tumors and contributes to increased tumor cell growth, tumor cell survival, and resistance to both chemotherapy and radiotherapy. PI3K beta is the p110-beta catalytic subunit of the class I PI3K. PTEN, a tumor suppressor protein and negative regulator of PI3K activity, is often mutated in a variety of cancer cells. By specifically targeting class I PI3K beta, this agent may be more efficacious and less toxic than pan-PI3K inhibitors. Check for active clinical trials using this agent. (NCI Thesaurus)

Code name:SAR 260301
Chemical structure:(S)-2-(2-(2-methylindolin-1-yl)-2-oxoethyl)-6-morpholinopyrimidin-4(3H)-one