IntroductionInsulin lispro 200 U/ml (IL200) is a rapid-acting concentrated insulin used for the treatment of adults with diabetes requiring daily doses of > 20 units of rapid-acting insulin. The aim of this study was to describe the clinical/demographic and treatment characteristics of patients who initiated insulin IL200 therapy in Spain in a real-world setting (PROFILE-IL200).MethodsThis retrospective observational study based on the IQVIA database included adult (≥ 18 years) patients with type 1 (T1D) or type 2 (T2D) diabetes who initiated IL200 between June 2015 and December 2019. Demographic and clinical characteristics were analyzed descriptively.ResultsMain characteristics for the T1D/T2D groups (N = 65/167) were as follows: male, 63.1/55.7%; mean (standard deviation [SD]) age, 46.5 (15.5)/62.6 (12.8) years; time since first diabetes record, 6.6 (4.2)/7.9 (2.9) years; body mass index (BMI), 30.9 (5.8)/33.1 (5.5) kg/m2; glycated hemoglobin, 8.3 (2.1)/8.8 (1.8)%; and diabetes-associated comorbidity, 55.4/92.8%. Among patients with T1D/T2D and a prior diagnosis (N = 54/164), 96.3/90.2% had received previous insulin (rapid insulin in 81.5/62.2%), and 13.0/97.6% had received previous noninsulin antihyperglycemic therapy. The mean (SD) total insulin dose before IL200 initiation for T1D/T2D was 98.0 (73.9)/95.2 (59.8) U/day; IL200 was initiated at a dose of 56.3 (43.8)/51.5 (34.3) U/day, with basal insulin in 86.2/83.2% of the patients. IL200 was first prescribed by an endocrinologist or a primary care physician in 48.7% and 46.6% of patients, respectively.ConclusionsPROFILE-IL200 described the profile of patients treated with IL200 in clinical practice in Spain. Patients were middle-aged, with poor glycemic control, high BMI and associated comorbidities, and received high doses of insulin at IL200 initiation.Supplementary InformationThe online version contains supplementary material available at 10.1007/s13300-022-01264-6.