Heise et al. [13] also compared intra-individual variability between IDeg and IGlar in T1D patients, now under steady-state conditions (which might explain the different results observed for IGlar), in 24-h euglycemic clamps performed on the 6th, 9th and 12th day of treatment with 0.4 U/kg of each one of the insulin preparations. Here, INS is linked to type 1 diabetes mellitus.