Efficacy and safety of once-weekly semaglutide 1.0mg vs once-daily liraglutide 1.2mg as add-on to 1-3 oral antidiabetic drugs in subjects with type 2 diabetes (SUSTAIN 10)

Diabetes Metab. 2020 Apr;46(2):100-109. doi: 10.1016/j.diabet.2019.101117. Epub 2019 Sep 17.


Aims: SUSTAIN 10 compared the efficacy and safety of the anticipated most frequent semaglutide dose (1.0mg) with the current most frequently prescribed liraglutide dose in Europe (1.2mg), reflecting clinical practice.

Methods: In this phase 3b, open-label trial, 577 adults with type 2 diabetes (HbA1c 7.0-11.0%) on 1-3 oral antidiabetic drugs were randomized 1:1 to subcutaneous once-weekly semaglutide 1.0mg or subcutaneous once-daily liraglutide 1.2mg. Primary and confirmatory secondary endpoints were changes in HbA1c and body weight from baseline to week 30, respectively.

Results: Mean HbA1c (baseline 8.2%) decreased by 1.7% with semaglutide and 1.0% with liraglutide (estimated treatment difference [ETD] -0.69%; 95% confidence interval [CI] -0.82 to -0.56, P<0.0001). Mean body weight (baseline 96.9kg) decreased by 5.8kg with semaglutide and 1.9kg with liraglutide (ETD -3.83kg; 95% CI -4.57 to -3.09, P<0.0001). The proportions of subjects achieving glycaemic targets of<7.0% and=6.5%, weight loss of=5% and=10%, and a composite endpoint of HbA1c<7.0% without severe or blood glucose-confirmed symptomatic hypoglycaemia and no weight gain were greater with semaglutide vs liraglutide (all P<0.0001). Both treatments had similar safety profiles, except for more frequent gastrointestinal disorders (the most common adverse events [AEs]) and AEs leading to premature treatment discontinuation with semaglutide vs liraglutide (43.9% vs 38.3% and 11.4% vs 6.6%, respectively).

Conclusion: Semaglutide was superior to liraglutide in reducing HbA1c and body weight. Safety profiles were generally similar, except for higher rates of gastrointestinal AEs with semaglutide vs liraglutide.

Keywords: Glucagon-like peptide-1 receptor agonist; Glycaemic control; Liraglutide; SUSTAIN; Semaglutide; Type 2 diabetes.

Publication types

  • Clinical Trial, Phase III
  • Comparative Study
  • Multicenter Study
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Administration, Oral
  • Aged
  • Blood Glucose
  • Diabetes Mellitus, Type 2 / blood
  • Diabetes Mellitus, Type 2 / drug therapy*
  • Drug Therapy, Combination
  • Female
  • Glucagon-Like Peptides / administration & dosage
  • Glucagon-Like Peptides / adverse effects
  • Glucagon-Like Peptides / therapeutic use*
  • Glycated Hemoglobin / analysis
  • Humans
  • Hypoglycemic Agents / administration & dosage
  • Hypoglycemic Agents / adverse effects
  • Hypoglycemic Agents / therapeutic use*
  • Injections, Subcutaneous
  • Liraglutide / administration & dosage
  • Liraglutide / adverse effects
  • Liraglutide / therapeutic use*
  • Male
  • Metformin / therapeutic use
  • Middle Aged
  • Treatment Outcome


  • Blood Glucose
  • Glycated Hemoglobin A
  • Hypoglycemic Agents
  • semaglutide
  • Glucagon-Like Peptides
  • Liraglutide
  • Metformin