Does the Use of Fiasp vs. Asp Lead to the Prolonged TIR in Children With Type 1 Diabetes?

Duration of the study: 10 weeks. It is assumed that the patients will attend 4 visits in Pediatric Diabetology Clinic, and 3 telephone consultations. W0: The study will start with a 2-week run-in period in order to normalize glycemia. W1: RT-CGM will be inserted. Subsequently, the participants will be randomly assigned to one of two groups (Fa-A or A-Fa), basing on which the order of insulin use will be determined. W2: after 2 weeks, diabetology telephone consultation (washout period). W3: after 2 weeks, diabetology consultation. Changing insulin type according to the allocation. W4: after 2 weeks, diabetology telephone consultation (washout period). W5: after 2 weeks, diabetology telephone consultation. W6: the results obtained throughout the study will be discussed with the patient and the parent.