Cited by 995Pharmacology and Obesity TreatmentDiabetes Treatment and ManagementRegulation of Appetite and Obesity

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Effect of Weekly Subcutaneous Semaglutide vs Daily Liraglutide on Body Weight in Adults With Overweight or Obesity Without Diabetes: The STEP 8 Randomized Clinical Trial

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Rubino, Domenica M., Greenway, Frank L., Khalid, Usman, O’Neil, Patrick M., Rosenstock, Julio, Sørrig, Rasmus, Wadden, Thomas A., Wizert, Alicja, Garvey, W. Timothy, STEP 8 Investigators, Arauz-Pacheco, Carlos, Cannon, Kevin, Downey, H. Jackson, Fitz-Patrick, David, Geohas, Jeffrey, Gerety, Gregg, Gilbert, John, Hollander, Priscilla, Klein, Eric, Laufer, Karen, O'Donnell, Philip, Rosenblit, Paul, Toth, Phillip·2022·JAMA

Abstract

Importance: Phase 3 trials have not compared semaglutide and liraglutide, glucagon-like peptide-1 analogues available for weight management. Objective: To compare the efficacy and adverse event profiles of once-weekly subcutaneous semaglutide, 2.4 mg, vs once-daily subcutaneous liraglutide, 3.0 mg (both with diet and physical activity), in people with overweight or obesity. Design, Setting, and Participants: Randomized, open-label, 68-week, phase 3b trial conducted at 19 US sites from September 2019 (enrollment: September 11-November 26) to May 2021 (end of follow-up: May 11) in adults with body mass index of 30 or greater or 27 or greater with 1 or more weight-related comorbidities, without diabetes (N = 338). Interventions: Participants were randomized (3:1:3:1) to receive once-weekly subcutaneous semaglutide, 2.4 mg (16-week escalation; n = 126), or matching placebo, or once-daily subcutaneous liraglutide, 3.0 mg (4-week escalation; n = 127), or matching placebo, plus diet and physical activity. Participants unable to tolerate 2.4 mg of semaglutide could receive 1.7 mg; participants unable to tolerate 3.0 mg of liraglutide discontinued treatment and could restart the 4-week titration. Placebo groups were pooled (n = 85). Main Outcomes and Measures: The primary end point was percentage change in body weight, and confirmatory secondary end points were achievement of 10% or more, 15% or more, and 20% or more weight loss, assessed for semaglutide vs liraglutide at week 68. Semaglutide vs liraglutide comparisons were open-label, with active treatment groups double-blinded against matched placebo groups. Comparisons of active treatments vs pooled placebo were supportive secondary end points. Results: Of 338 randomized participants (mean [SD] age, 49 [13] years; 265 women [78.4%]; mean [SD] body weight, 104.5 [23.8] kg; mean [SD] body mass index, 37.5 [6.8]), 319 (94.4%) completed the trial, and 271 (80.2%) completed treatment. The mean weight change from baseline was -15.8% with semaglutide vs -6.4% with liraglutide (difference, -9.4 percentage points [95% CI, -12.0 to -6.8]; P < .001); weight change with pooled placebo was -1.9%. Participants had significantly greater odds of achieving 10% or more, 15% or more, and 20% or more weight loss with semaglutide vs liraglutide (70.9% of participants vs 25.6% [odds ratio, 6.3 {95% CI, 3.5 to 11.2}], 55.6% vs 12.0% [odds ratio, 7.9 {95% CI, 4.1 to 15.4}], and 38.5% vs 6.0% [odds ratio, 8.2 {95% CI, 3.5 to 19.1}], respectively; all P < .001). Proportions of participants discontinuing treatment for any reason were 13.5% with semaglutide and 27.6% with liraglutide. Gastrointestinal adverse events were reported by 84.1% with semaglutide and 82.7% with liraglutide. Conclusions and Relevance: Among adults with overweight or obesity without diabetes, once-weekly subcutaneous semaglutide compared with once-daily subcutaneous liraglutide, added to counseling for diet and physical activity, resulted in significantly greater weight loss at 68 weeks. Trial Registration: ClinicalTrials.gov Identifier: NCT04074161.

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  1. Davies, 2021, Semaglutide 2.4 mg once a week in adults with overweight or obesity, and type 2 diabetes (STEP 2): a randomised, double-blind, double-dummy, placebo-controlled, phase 3 trial., Lancet, 397, 971, 10.1016/S0140-6736(21)00213-0 · DOI · Paper page
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Metadata

Authors
Rubino, D. M., Greenway, F. L., Khalid, U., O’Neil, P. M., Rosenstock, J., Sørrig, R., Wadden, T. A., Wizert, A., Garvey, W. T., STEP 8 Investigators, Arauz-Pacheco, C., Cannon, K., Downey, H. J., Fitz-Patrick, D., Geohas, J., Gerety, G., Gilbert, J., Hollander, P., Klein, E., Laufer, K., O'Donnell, P., Rosenblit, P., & Toth, P.
Affiliations
  • Washington Center for Weight Management and Research (US)
  • Pennington Biomedical Research Center (US)
  • Novo Nordisk (Denmark) (DK)
  • Medical University of South Carolina (US)
  • Dallas Diabetes Research Center (US)
  • University of Pennsylvania (US)
  • University of Alabama at Birmingham (US)
  • for the STEP 8 Investigators
Venue
JAMA
Published
2022-01-11
Volume
327
Issue
2
Pages
138
ISSN
  • 0002-9955 (ISSN-L)
  • 0098-7484
OpenAlex
W4205651374
Cited by
995
References
20
Citations by year
2026: 200 · 2025: 274 · 2024: 259 · 2023: 187 · 2022: 74
FWCI
118.78
Type
journal article
Language
en
Open access
Locations
  • JAMA (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Diabetes and Digestive and Kidney Diseases (P30DK056336)
Topics
  • Health Sciences › Medicine › Pharmacology (medical) › Pharmacology and Obesity Treatment
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
Keywords
semaglutide, liraglutide, GLP-1 receptor agonists, obesity, overweight, weight loss, weight-related comorbidities, adverse events, drug safety, dose escalation, placebo comparison, open-label extension, GLP-1 receptor antagonists, weight regain after weight loss
MeSH terms
Liraglutide, Semaglutide, Body Weight, Diabetes Mellitus, Diet Therapy, Drug Administration Schedule, Glucagon-Like Peptides, Female, Humans, Hypoglycemic Agents, Injections, Subcutaneous, Male, Middle Aged, Obesity, Patient Dropouts, Placebos, United States, Weight Loss, Exercise, Odds Ratio, Treatment Outcome, Overweight

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