title: Clinical effectiveness of liraglutide across body mass index in patients with type 2 diabetes in the United States: a retrospective cohort study.
abstract: BACKGROUND
  Clinical trials have shown that liraglutide effectively lowers glycated hemoglobin A1c (A1C) levels in adult patients with type 2 diabetes (T2D). However, no studies have evaluated the effectiveness of liraglutide by body mass index (BMI) in the United States (US) in clinical practice. This study examined liraglutide's clinical effectiveness to lower A1C and body weight after 6 months in T2D patients stratified by baseline BMI.
  
  
  METHODS
  This was a retrospective cohort study using the General Electric Centricity electronic medical records database. Adult patients with T2D (≥18 years and BMI≥ 25 kg/m(2)) and A1C >7% at baseline who started liraglutide between January 1, 2010 and January 31, 2013 and who did not use insulin or a glucagon-like peptide-1 analog 12 months before initiating liraglutide (N = 3,005) were selected. Changes from baseline, stratified by BMI, in A1C, body weight, A1C <7% goal attainment, and incidence of severe hypoglycemia at 6-month follow-up were examined.
  
  
  RESULTS
  After 6 months, A1C levels decreased on average by 0.95%, 1.02%, 0.99%, and 0.84% for BMI categories 25.0-29.9 (n = 333), 30.0-34.9 (n = 793), 35.0-39.9 (n = 821), and ≥40.0 kg/m(2) (n = 1,058), respectively (P = 0.30). The proportions of patients achieving A1C <7% at 6 months were 38.2%, 37.0%, 40.9%, and 41.0% (P = 0.54). The absolute body weight decreased by 1.5 to 4.0 kg across BMI and the rate of severe hypoglycemia (0.2%) was low.
  
  
  CONCLUSIONS
  Patients with T2D experienced statistically significant decreases in A1C and body weight after initiating liraglutide regardless of their BMI. Liraglutide reduced A1C equally well across baseline BMI in clinical practice in the US.
authors.affiliation: Evidera, Suite 300, 430 Bedford Street, Lexington, MA, 02420, USA, abhishek.chitnis@evidera.com.
authors.forename: Abhishek S
authors.initials: AS
authors.lastname: Chitnis
authors.forename: Michael L
authors.initials: ML
authors.lastname: Ganz
authors.forename: Nicole
authors.initials: N
authors.lastname: Benjamin
authors.forename: Jakob
authors.initials: J
authors.lastname: Langer
authors.forename: Mette
authors.initials: M
authors.lastname: Hammer
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015992:Body Mass Index; D001835:Body Weight; D003924:Diabetes Mellitus, Type 2 / Q000188:drug therapy*; D005260:Female; D006442:Glycated Hemoglobin / Q000032:analysis; D006801:Humans; D007003:Hypoglycemia; D007004:Hypoglycemic Agents / Q000627:therapeutic use*; D000069450:Liraglutide / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D014481:United States; D055815:Young Adult
chemical_list: D006442:Glycated Hemoglobin; D007004:Hypoglycemic Agents; D000069450:Liraglutide