This is the author's final draft of an article published in Diabetes Research & Clinical Practice http://www.elsevier.com/wps/find/journaldescription.cws_home/505949/description#descriptionThis study assessed the incidence of severe hypoglycaemia with two insulin glargine titration algorithms: Algorithm 1 (increments of at least 10%, but not exceeding 4 U) versus Algorithm 2 (1–6 U increments). In this multicenter (n=409), multinational (n=54), open-label, 24-week randomized trial in 2442 subjects with sub-optimally controlled Type 1 diabetes (T1DM), mean prior insulin therapy duration was 14.6±10.3 years. The incidence of severe hypoglycaemia was similar with Algorithms 1 and 2 (16.6 vs 14.4 events per 100 patient–years). There were similar rates of both symptomatic and nocturnal hypoglycaemia. HbA1c and fasting blood glucose (FBG) decreased significantly (baseline to endpoint; p<0.001), and comparably with Algorithms 1 and 2 (HbA1c: –0.64 vs –0.72%; FBG: –57 vs –59 mg/dL). Mean basal insulin dose increased with both algorithms (+5.7 vs +5.9 U). In a diverse population with longstanding T1DM, transfer from any insulin regimen, including basal–bolus or premixed insulin to an insulin glargine-based regimen resulted in significant improvements in glycaemic control, with low rates of severe hypoglycaemia, irrespective of the titration algorithm used
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