Continuous Glucose Monitoring Profile Description Under Alpelisib treAtment in Patients With Advanced bREast Cancer

In percentage, measured before breakfast and diner (fasting blood glucose). Hyperglycemia defined as follows: * if diabetes de novo: * capillar or interstitial fasting blood glucose ≥ 1,50 g/L, * OR postprandial interstitial glucose ≥ 2 g/L * OR glucose monitoring indicator ≥ 6,5% * if worsening pre-existing diabetes: * increased capillar or interstitial fasting blood glucose ≥ 0,50 g/L compared to average fasting blood glucose at J-3, J-2 and J-1 * AND postprandial interstitial glucose ≥ + 1,00 g/L compared to average fasting blood glucose at J-3, J-2 et J-1 OR average blood glucose ≥ +0,50 g/L