Personalised Pharmacological Approach to the Tapering of Corticosteroid Doses in Systemic Lupus Patients Treated With Prednisone

"Blood samples at 3 visits :~V0 : - 5 mL in heparin tube / Pharmacokinetics + Gene Expression Analysis~V1 : - 5 mL in heparin tube / sample (2 to 5 samples) Pharmacokinetics + Pharmacogenetics + Gene Expression Analysis~V2 : - 5 mL in heparin tube / Pharmacokinetics + Gene Expression Analysis and - 5 mL in EDTA tube / DNA bank"