Semaglutide improves cardiometabolic risk factors in adults with overweight or obesity: STEP 1 and 4 exploratory analyses

Mikhail N. Kosiborod*, Meena Bhatta, Melanie Davies, John E. Deanfield, W. Timothy Garvey, Usman Khalid, Robert Kushner, Domenica M. Rubino, Niels Zeuthen, Subodh Verma

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Aims: Evaluate the effects of once-weekly subcutaneous semaglutide 2.4 mg on cardiometabolic risk factors in people with overweight/obesity without diabetes in the STEP 1 and 4 trials. Materials and Methods: STEP 1 and 4 were phase III, 68-week, placebo-controlled trials of once-weekly semaglutide 2.4 mg combined with lifestyle intervention; STEP 4 had a 20-week semaglutide run-in and 48-week randomized withdrawal period. Participants had a body mass index ≥30 kg/m2 or ≥27 kg/m2 with one or more weight-related comorbidity, without diabetes. Pre-specified endpoints were changes in waist circumference, systolic/diastolic blood pressure (SBP/DBP), lipids, fasting plasma glucose (FPG), fasting serum insulin and antihypertensive/lipid-lowering medication use. Post-hoc assessments included non-high-density lipoprotein (HDL) cholesterol, homeostatic model assessment of insulin resistance (HOMA-IR; STEP 1 only), atherosclerotic cardiovascular disease (ASCVD) risk (American College of Cardiology/American Heart Association algorithm; STEP 1 only) and cardiometabolic risk factors by weight loss achieved (<5%, 5% to <10%, 10% to <15%, or ≥15%) (STEP 1 only). Results: Of the 1961 participants in STEP 1 and 803 in STEP 4, most had one or more complication/comorbidity at baseline, with dyslipidaemia and hypertension most prevalent. In STEP 1, reductions in waist circumference, SBP, DBP, FPG, fasting serum insulin, lipids and HOMA-IR were greater with semaglutide versus placebo (p ≤.001). Reductions in SBP, non-HDL cholesterol, low-density lipoprotein cholesterol and FPG were generally greater with semaglutide than placebo within weight-loss categories. Non-significant ASCVD risk reductions were observed with semaglutide versus placebo (p >.05). In STEP 4, improvements in waist circumference, SBP, FPG, fasting serum insulin and lipids during the semaglutide run-in (week 0-20) were maintained over week 20-68 with continued semaglutide, but deteriorated following the switch to placebo (p <.001 [week 20-68]). Net reductions in antihypertensive/lipid-lowering medication use occurred with semaglutide versus placebo (both trials). Conclusions: Semaglutide may improve cardiometabolic risk factors and reduce antihypertensive/lipid-lowering medication use versus placebo in adults with overweight/obesity without diabetes. These potential benefits were not maintained after treatment discontinuation. ClinicalTrials.gov numbers: STEP 1 NCT03548935, STEP 4 NCT03548987.

Original languageEnglish (US)
Pages (from-to)468-478
Number of pages11
JournalDiabetes, Obesity and Metabolism
Volume25
Issue number2
DOIs
StatePublished - Feb 2023

Keywords

  • GLP-1 analogue
  • cardiovascular disease
  • obesity therapy
  • randomized trial
  • weight control

ASJC Scopus subject areas

  • Internal Medicine
  • Endocrinology, Diabetes and Metabolism
  • Endocrinology

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