 Study will consist of 4 clinic visits taking place at -2,0,12 and 24 weeks and additional 4 telephone visits taking place at 4,8,16 and 20 weeks. In addition, patients will be invited one week prior to visit 5 and visit 8 in order to insert a continuous glucose sensor. Patients will complete DTSQ and Comfort Function questionnaires at weeks 0, 12 and 24, before and at the end of each study arm. 