[CAS NO. 1268454-23-4]  Serabelisib (TAK-117)

Administration of TAK-117 leads to dose-dependent inhibition of tumor growth in murine xenograft models of human cancer (e.g., breast carcinoma) bearing PIK3CA oncogenic mutations, with corresponding inhibition of PI3K pharmacodynamic markers in tumor tissue. Preclinical antitumor activity of single-agent TAK-117 has been shown to be independent of dosing schedules and driven by total plasma exposures. Conversely, TAK-117 is not efficacious in tumor models harboring PTEN and/or KRAS mutations. Preclinical studies show TAK-117 to have low potential for disrupting glucose metabolism or for causing cardiac adverse events; in rats and monkeys, doses up to 50 mg/kg/day were well tolerated. In human, The mean terminal half-life of TAK-117 is approximately 11 hours (range, 6-14 hours). There is no meaningful accumula-tion of TAK-117 with repeated dosing for any schedule. Additionally, INK1117 does not significantly impair B and T cell function in vitro and in vivo.