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. 2023 Aug 27;29(9):2358–2365. doi: 10.1038/s41591-023-02526-x

Table 3.

Adverse events

Adverse event rate per 100 patient years
Class I obesity (30–34.9 kg m2) Class II obesity (35–39.9 kg m2) Class III obesity (≥40 kg m2)
Placebo (n = 91) Semaglutide (n = 89) Placebo (n = 83) Semaglutide (n = 88) Placebo (n = 92) Semaglutide (n = 86)
Serious adverse events 53.7 32.2 39.0 18.4 56.7 20.4
Deaths 0.0 2.5 3.5 0.0 2.2 1.1
Category of serious adverse event
 Cardiac disorders 19.7 7.4 9.5 1.2 18.9 1.1
 Infections and infestations 3.3 3.7 13.0 2.3 8.9 0.0
 Gastrointestinal disorders 3.3 2.5 0.0 4.6 5.6 3.4
 Nervous system disorders 3.3 6.2 3.5 1.2 1.1 2.3
 Renal and urinary disorders 1.1 3.7 1.2 1.2 4.4 3.4
 Respiratory, thoracic and mediastinal 6.6 0.0 2.4 0.0 3.3 0.0
 Musculoskeletal and connective tissue 1.1 0.0 1.2 3.5 3.3 2.3
 Injury, poisoning and procedural 3.3 0.0 2.4 2.3 0.0 2.3
 Metabolism and nutrition disorders 2.2 0.0 1.2 2.3 1.1 1.1
 Hepatobiliary disorders 2.2 3.7 0.0 0.0 0.0 1.1
 General disorders and administration site 0.0 0.0 1.2 0.0 2.2 1.1
 Neoplasms benign, malignant and unspecified 1.1 0.0 1.2 0.0 1.1 1.1
Serious adverse event leading to discontinuation 4.4 5.0 1.2 1.2 2.2 2.3