Pharmacotherapeutic group: Drugs used in diabetes, Glucagon-like peptide-1 (GLP‑1) analogues, ATC code: A10BJ06
Mechanism of action
Semaglutide is a GLP‑1 analogue with 94% sequence homology to human GLP‑1. Semaglutide acts as a GLP‑1 receptor agonist that selectively binds to and activates the GLP‑1 receptor, the target for native GLP‑1.
GLP‑1 is a physiological hormone that has multiple actions in glucose and appetite regulation, and in the cardiovascular system. The glucose and appetite effects are specifically mediated via GLP‑1 receptors in the pancreas and the brain.
Semaglutide reduces blood glucose in a glucose-dependent manner by stimulating insulin secretion and lowering glucagon secretion when blood glucose is high. The mechanism of blood glucose lowering also involves a minor delay in gastric emptying in the early postprandial phase. During hypoglycaemia, semaglutide diminishes insulin secretion and does not impair glucagon secretion. The mechanism of semaglutide is independent of the route of administration.
Semaglutide reduces body weight and body fat mass through lowered energy intake, involving an overall reduced appetite. In addition, semaglutide reduces the preference for high fat foods.
GLP‑1 receptors are expressed in the heart, vasculature, immune system and kidneys. Semaglutide has a beneficial effect on plasma lipids, lowers systolic blood pressure and reduces inflammation in clinical studies. In animal studies, semaglutide attenuates the development of atherosclerosis by preventing aortic plaque progression and reducing inflammation in the plaque.
The exact mechanism of cardiovascular risk reduction has not been established.
Pharmacodynamic effects
The pharmacodynamic evaluations described below were performed with orally administered semaglutide after 12 weeks of treatment.
Fasting and postprandial glucose
Semaglutide reduces fasting and postprandial glucose concentrations. In patients with type 2 diabetes, treatment with semaglutide resulted in a relative reduction compared to placebo of 22% [13; 30] for fasting glucose and 29% [19; 37] for postprandial glucose.
Glucagon secretion
Semaglutide lowers the postprandial glucagon concentrations. In patients with type 2 diabetes, semaglutide resulted in the following relative reductions in glucagon compared to placebo: postprandial glucagon response of 29% [15; 41].
Gastric emptying
Semaglutide causes a minor delay in early postprandial gastric emptying, with paracetamol exposure (AUC0-1h) 31% [13; 46] lower in the first hour after the meal, thereby reducing the rate at which glucose appears in the circulation postprandially.
Fasting and postprandial lipids
Semaglutide compared to placebo lowered fasting triglyceride and very‑low‑density lipoproteins (VLDL) cholesterol concentrations by 19% [8; 28] and 20% [5; 33], respectively. The postprandial triglyceride and VLDL cholesterol response to a high fat meal was reduced by 24% [9; 36] and 21% [7; 32], respectively. ApoB48 was reduced both in fasting and postprandial state by 25% [2; 42] and 30% [15; 43], respectively.
Clinical efficacy and safety
The efficacy and safety of Rybelsus have been evaluated in eight global randomised controlled phase 3a trials. Phase 3a studies were conducted with tablets containing 3 mg, 7 mg and 14 mg semaglutide which are bioequivalent to 1.5 mg, 4 mg and 9 mg semaglutide, respectively. In seven trials, the primary objective was the assessment of the glycaemic efficacy; in one trial (PIONEER 6), the primary objective was the assessment of cardiovascular outcomes.
The trials included 8 842 randomised patients with type 2 diabetes (5 169 treated with semaglutide), including 1 165 patients with moderate renal impairment. Patients had an average age of 61 years (range 18 to 92 years), with 40% of patients ≥ 65 years of age and 8% ≥ 75 years of age. The efficacy of semaglutide was compared with placebo or active controls (sitagliptin, empagliflozin and liraglutide).
The efficacy of semaglutide was not impacted by baseline age, gender, race, ethnicity, body weight, BMI, diabetes duration, upper gastrointestinal disease and level of renal function.
A phase 3b cardiovascular outcomes trial (SOUL) including 9 650 patients was conducted to investigate whether oral semaglutide lowers the risk of major adverse cardiovascular events (MACE) compared to placebo in addition to standard of care, in patients with type 2 diabetes and established cardiovascular disease and/or chronic kidney disease.
PIONEER 1 – Monotherapy
In a 26‑week double-blind trial, 703 patients with type 2 diabetes inadequately controlled with diet and exercise were randomised to semaglutide 3 mg, semaglutide 7 mg, semaglutide 14 mg or placebo once daily.
Table 2 Results of a 26-week monotherapy trial comparing semaglutide with placebo (PIONEER 1)
| | Semaglutide 7 mg2 (Bioequivalent to 4 mg) | Semaglutide 14 mg2 (Bioequivalent to 9 mg) | Placebo |
| Full analysis set (N) | 175 | 175 | 178 |
| HbA1c (%) | | | |
| Baseline | 8.0 | 8.0 | 7.9 |
| Change from baseline1 | −1.2 | −1.4 | −0.3 |
| Difference from placebo1 [95% CI] | −0.9 [−1.1; −0.6]* | −1.1 [−1.3; −0.9]* | - |
| Patients (%) achieving HbA1c < 7.0% | 69§ | 77§ | 31 |
| FPG (mmol/L) | | | |
| Baseline | 9.0 | 8.8 | 8.9 |
| Change from baseline1 | −1.5 | −1.8 | −0.2 |
| Difference from placebo1 [95% CI] | −1.4 [−1.9; −0.8]§ | −1.6 [−2.1; −1.2]§ | - |
| Body weight (kg) | | | |
| Baseline | 89.0 | 88.1 | 88.6 |
| Change from baseline1 | −2.3 | −3.7 | −1.4 |
| Difference from placebo1 [95% CI] | −0.9 [−1.9; 0.1] | −2.3 [−3.1; −1.5]* | - |
1 Irrespective of treatment discontinuation or initiation of rescue medication (pattern mixture model using multiple imputation). * p< 0.001 (unadjusted 2-sided) for superiority, controlled for multiplicity. § p< 0.05, not controlled for multiplicity; for 'Patients achieving HbA1c < 7.0%', the p-value is for the odds ratio. 2 Bioequivalence has been confirmed between 4 mg and 7 mg doses, as well as, between 9 mg and 14 mg doses, see section 5.2 Pharmacokinetic properties.
PIONEER 2 – Semaglutide vs. empagliflozin, both in combination with metformin
In a 52‑week open-label trial, 822 patients with type 2 diabetes were randomised to semaglutide 14 mg once daily or empagliflozin 25 mg once daily, both in combination with metformin.
Table 3 Results of a 52-week trial comparing semaglutide with empagliflozin (PIONEER 2)
| | Semaglutide 14 mg2 (Bioequivalent to 9 mg) | Empagliflozin 25 mg |
| Full analysis set (N) | 411 | 410 |
| Week 26 | | |
| HbA1c (%) | | |
| Baseline | 8.1 | 8.1 |
| Change from baseline1 | −1.3 | −0.9 |
| Difference from empagliflozin1 [95% CI] | −0.4 [−0.6; −0.3]* | - |
| Patients (%) achieving HbA1c < 7.0% | 67§ | 40 |
| FPG (mmol/L) | | |
| Baseline | 9.5 | 9.7 |
| Change from baseline1 | −2.0 | −2.0 |
| Difference from empagliflozin1 [95% CI] | 0.0 [−0.2; 0.3] | - |
| Body weight (kg) | | |
| Baseline | 91.9 | 91.3 |
| Change from baseline1 | −3.8 | −3.7 |
| Difference from empagliflozin1 [95% CI] | −0.1 [−0.7; 0.5] | - |
| Week 52 | | |
| HbA1c (%) | | |
| Change from baseline1 | −1.3 | −0.9 |
| Difference from empagliflozin1 [95% CI] | −0.4 [−0.5; −0.3]§ | - |
| Patients (%) achieving HbA1c < 7.0% | 66§ | 43 |
| Body weight (kg) | | |
| Change from baseline1 | −3.8 | −3.6 |
| Difference from empagliflozin1 [95% CI] | −0.2 [−0.9; 0.5] | - |
1 Irrespective of treatment discontinuation or initiation of rescue medication (pattern mixture model using multiple imputation). * p< 0.001 (unadjusted 2-sided) for superiority, controlled for multiplicity. § p< 0.05, not controlled for multiplicity; for 'Patients achieving HbA1c < 7.0%', the p-value is for the odds ratio. 2 Bioequivalence has been confirmed between 9 mg and 14 mg doses, see section 5.2 Pharmacokinetic properties.
PIONEER 3 – Semaglutide vs. sitagliptin, both in combination with metformin or metformin with sulfonylurea
In a 78‑week, double-blind, double-dummy trial, 1 864 patients with type 2 diabetes were randomised to semaglutide 3 mg, semaglutide 7 mg, semaglutide 14 mg or sitagliptin 100 mg once daily, all in combination with metformin alone or metformin and sulfonylurea. Reductions in HbA1c and body weight were sustained throughout the trial duration of 78 weeks.
Table 4 Results of a 78-week trial comparing semaglutide with sitagliptin (PIONEER 3)
| | Semaglutide 7 mg2 (Bioequivalent to 4 mg) | Semaglutide 14 mg2 (Bioequivalent to 9 mg) | Sitagliptin 100 mg |
| Full analysis set (N) | 465 | 465 | 467 |
| Week 26 | | | |
| HbA1c (%) | | | |
| Baseline | 8.4 | 8.3 | 8.3 |
| Change from baseline1 | −1.0 | −1.3 | −0.8 |
| Difference from sitagliptin1 [95% CI] | −0.3 [−0.4; −0.1]* | −0.5 [−0.6; −0.4]* | - |
| Patients (%) achieving HbA1c < 7.0% | 44§ | 56§ | 32 |
| FPG (mmol/L) | | | |
| Baseline | 9.4 | 9.3 | 9.5 |
| Change from baseline1 | −1.2 | −1.7 | −0.9 |
| Difference from sitagliptin1 [95% CI] | −0.3 [−0.6; 0.0]§ | −0.8 [−1.1; −0.5]§ | - |
| Body weight (kg) | | | |
| Baseline | 91.3 | 91.2 | 90.9 |
| Change from baseline1 | −2.2 | −3.1 | −0.6 |
| Difference from sitagliptin1 [95% CI] | −1.6 [−2.0; −1.1]* | −2.5 [−3.0; −2.0]* | - |
| Week 78 | | | |
| HbA1c (%) | | | |
| Change from baseline1 | −0.8 | −1.1 | −0.7 |
| Difference from sitagliptin1 [95% CI] | −0.1 [−0.3; 0.0] | −0.4 [−0.6; −0.3]§ | - |
| Patients (%) achieving HbA1c < 7.0% | 39§ | 45§ | 29 |
| Body weight (kg) | | | |
| Change from baseline1 | −2.7 | −3.2 | −1.0 |
| Difference from sitagliptin1 [95% CI] | −1.7 [−2.3; −1.0]§ | −2.1 [−2.8; −1.5]§ | - |
1 Irrespective of treatment discontinuation or initiation of rescue medication (pattern mixture model using multiple imputation). * p< 0.001 (unadjusted 2-sided) for superiority, controlled for multiplicity. § p< 0.05, not controlled for multiplicity; for 'Patients achieving HbA1c < 7.0%', the p-value is for the odds ratio. 2 Bioequivalence has been confirmed between 4 mg and 7 mg doses, as well as, between 9 mg and 14 mg doses, see section 5.2 Pharmacokinetic properties.
PIONEER 4 – Semaglutide vs. liraglutide and placebo, all in combination with metformin or metformin with an SGLT2 inhibitor
In a 52-week double-blind, double-dummy trial, 711 patients with type 2 diabetes were randomised to semaglutide 14 mg, liraglutide 1.8 mg subcutaneous injection or placebo once daily, all in combination with metformin or metformin and an SGLT2 inhibitor.
Table 5 Results of a 52-week trial comparing semaglutide with liraglutide and placebo (PIONEER 4)
| | Semaglutide 14 mg2 (Bioequivalent to 9 mg) | Liraglutide 1.8 mg | Placebo |
| Full analysis set (N) | 285 | 284 | 142 |
| Week 26 | | | |
| HbA1c (%) | | | |
| Baseline | 8.0 | 8.0 | 7.9 |
| Change from baseline1 | −1.2 | −1.1 | −0.2 |
| Difference from liraglutide1 [95% CI] | −0.1 [−0.3; 0.0] | - | - |
| Difference from placebo1 [95% CI] | −1.1 [−1.2; −0.9]* | - | - |
| Patients (%) achieving HbA1c < 7.0% | 68§,a | 62 | 14 |
| FPG (mmol/L) | | | |
| Baseline | 9.3 | 9.3 | 9.2 |
| Change from baseline1 | −2.0 | −1.9 | −0.4 |
| Difference from liraglutide1 [95% CI] | −0.1 [−0.4; 0.1] | - | - |
| Difference from placebo1 [95% CI] | −1.6 [−2.0; −1.3]§ | - | - |
| Body weight (kg) | | | |
| Baseline | 92.9 | 95.5 | 93.2 |
| Change from baseline1 | −4.4 | −3.1 | −0.5 |
| Difference from liraglutide1 [95% CI] | −1.2 [−1.9; −0.6]* | - | - |
| Difference from placebo1 [95% CI] | −3.8 [−4.7; −3.0]* | - | - |
| Week 52 | | | |
| HbA1c (%) | | | |
| Change from baseline1 | −1.2 | −0.9 | −0.2 |
| Difference from liraglutide1 [95% CI] | −0.3 [−0.5; −0.1]§ | - | - |
| Difference from placebo1 [95% CI] | −1.0 [−1.2; −0.8]§ | - | - |
| Patients (%) achieving HbA1c < 7.0% | 61§,a | 55 | 15 |
| Body weight (kg) | | | |
| Change from baseline1 | −4.3 | −3.0 | −1.0 |
| Difference from liraglutide1 [95% CI] | −1.3 [−2.1; −0.5]§ | - | - |
| Difference from placebo1 [95% CI] | −3.3 [−4.3; −2.4]§ | - | - |
1 Irrespective of treatment discontinuation or initiation of rescue medication (pattern mixture model using multiple imputation). * p< 0.001 (unadjusted 2-sided) for superiority, controlled for multiplicity. § p< 0.05, not controlled for multiplicity; for 'Patients achieving HbA1c < 7.0%', the p-value is for the odds ratio. a vs placebo. 2 Bioequivalence has been confirmed between 9 mg and 14 mg doses, see section 5.2 Pharmacokinetic properties.
PIONEER 5 – Semaglutide vs. placebo, both in combination with basal insulin alone, metformin and basal insulin or metformin and/or sulfonylurea, in patients with moderate renal impairment
In a 26‑week double-blind trial, 324 patients with type 2 diabetes and moderate renal impairment (eGFR 30‑59 mL/min/1.73 m2) were randomised to semaglutide 14 mg or placebo once daily. Trial product was added to the patient's stable pre-trial antidiabetic regimen.
Table 6 Results of a 26-week trial comparing semaglutide with placebo in patients with type 2 diabetes and moderate renal impairment (PIONEER 5)
| | Semaglutide 14 mg2 (Bioequivalent to 9 mg) | Placebo |
| Full analysis set (N) | 163 | 161 |
| HbA1c (%) | | |
| Baseline | 8.0 | 7.9 |
| Change from baseline1 | −1.0 | −0.2 |
| Difference from placebo1 [95% CI] | −0.8 [−1.0; −0.6]* | - |
| Patients (%) achieving HbA1c < 7.0% | 58§ | 23 |
| FPG (mmol/L) | | |
| Baseline | 9.1 | 9.1 |
| Change from baseline1 | −1.5 | −0.4 |
| Difference from placebo1 [95% CI] | −1.2 [−1.7; −0.6]§ | - |
| Body weight (kg) | | |
| Baseline | 91.3 | 90.4 |
| Change from baseline1 | −3.4 | −0.9 |
| Difference from placebo1 [95% CI] | −2.5 [−3.2; −1.8]* | - |
1 Irrespective of treatment discontinuation or initiation of rescue medication (pattern mixture model using multiple imputation). * p< 0.001 (unadjusted 2-sided) for superiority, controlled for multiplicity. § p< 0.05, not controlled for multiplicity; for 'Patients achieving HbA1c < 7.0%', the p-value is for the odds ratio. 2 Bioequivalence has been confirmed between 9 mg and 14 mg doses, see section 5.2 Pharmacokinetic properties.
PIONEER 7 – Semaglutide vs. sitagliptin, both in combination with metformin, SGLT2 inhibitors, sulfonylurea or thiazolidinediones. Flexible-dose-adjustment trial
In a 52‑week open‑label trial, 504 patients with type 2 diabetes were randomised to semaglutide (flexible dose adjustment of 3 mg, 7 mg, and 14 mg once daily) or sitagliptin 100 mg once daily, all in combination with 1‑2 oral glucose‑lowering medicinal products (metformin, SGLT2 inhibitors, sulfonylurea or thiazolidinediones). The dose of semaglutide was adjusted every 8 weeks based on patient's glycaemic response and tolerability. The sitagliptin 100 mg dose was fixed. The efficacy and safety of semaglutide were evaluated at week 52.
At week 52, the proportion of patients on treatment with semaglutide 3 mg, 7 mg and 14 mg was approximately 10%, 30% and 60%, respectively.
Table 7 Results of a 52-week flexible-dose-adjustment trial comparing semaglutide with sitagliptin (PIONEER 7)
| | Semaglutide Flexible dose2 | Sitagliptin 100 mg |
| Full analysis set (N) | 253 | 251 |
| HbA1c (%) | | |
| Baseline | 8.3 | 8.3 |
| Patients (%) achieving HbA1c < 7.0%1 | 58* | 25 |
| Body weight (kg) | | |
| Baseline | 88.9 | 88.4 |
| Change from baseline1 | −2.6 | −0.7 |
| Difference from sitagliptin1 [95% CI] | −1.9 [−2.6; −1.2]* | - |
1 Irrespective of treatment discontinuation (16.6% of the patients with semaglutide flexible dose and 9.2% with sitagliptin, where 8.7% and 4.0%, respectively, were due to AEs) or initiation of rescue medication (pattern mixture model using multiple imputation). * p< 0.001 (unadjusted 2-sided) for superiority, controlled for multiplicity (for 'Patients achieving HbA1c < 7.0%', the p-value is for the odds ratio). 2Bioequivalence has been confirmed between 1.5 mg and 3 mg, between 4 mg and 7 mg and between 9 mg and 14 mg doses, see section 5.2 Pharmacokinetic properties.
PIONEER 8 – Semaglutide vs. placebo, both in combination with insulin with or without metformin
In a 52-week double-blind trial, 731 patients with type 2 diabetes inadequately controlled on insulin (basal, basal/bolus or premixed) with or without metformin were randomised to semaglutide 3 mg, semaglutide 7 mg, semaglutide 14 mg or placebo once daily.
Table 8 Results of a 52-week trial comparing semaglutide with placebo in combination with insulin (PIONEER 8)
| | Semaglutide 7 mg2 (Bioequivalent to 4 mg) | Semaglutide 14 mg2 (Bioequivalent to 9 mg) | Placebo |
| Full analysis set (N) | 182 | 181 | 184 |
| Week 26 (insulin dose capped to baseline level) | | | |
| HbA1c (%) | | | |
| Baseline | 8.2 | 8.2 | 8.2 |
| Change from baseline1 | −0.9 | −1.3 | −0.1 |
| Difference from placebo1 [95% CI] | −0.9 [−1.1; −0.7]* | −1.2 [−1.4; −1.0]* | - |
| Patients (%) achieving HbA1c < 7.0% | 43§ | 58§ | 7 |
| FPG (mmol/L) | | | |
| Baseline | 8.5 | 8.3 | 8.3 |
| Change from baseline1 | −1.1 | −1.3 | 0.3 |
| Difference from placebo1 [95% CI] | −1.4 [−1.9; −0.8]§ | −1.6 [−2.2; −1.1]§ | - |
| Body weight (kg) | | | |
| Baseline | 87.1 | 84.6 | 86.0 |
| Change from baseline1 | −2.4 | −3.7 | −0.4 |
| Difference from placebo1 [95% CI] | −2.0 [−3.0; −1.0]* | −3.3 [−4.2; −2.3]* | - |
| Week 52 (uncapped insulin dose)+ | | | |
| HbA1c (%) | | | |
| Change from baseline1 | −0.8 | −1.2 | -0.2 |
| Difference from placebo1 [95% CI] | −0.6 [−0.8; −0.4]§ | −0.9 [−1.1; −0.7]§ | - |
| Patients (%) achieving HbA1c < 7.0% | 40§ | 54§ | 9 |
| Body weight (kg) | | | |
| Change from baseline1 | −2.0 | −3.7 | 0.5 |
| Difference from placebo1 [95% CI] | −2.5 [−3.6; −1.4]§ | −4.3 [−5.3; −3.2]§ | - |
1 Irrespective of treatment discontinuation or initiation of rescue medication (pattern mixture model using multiple imputation). * p< 0.001 (unadjusted 2-sided) for superiority, controlled for multiplicity. § p< 0.05, not controlled for multiplicity; for 'Patients achieving HbA1c < 7.0%', the p-value is for the odds ratio. + The total daily insulin dose was statistically significantly lower with semaglutide than with placebo at week 52. 2 Bioequivalence has been confirmed between 4 mg and 7 mg doses, as well as, between 9 mg and 14 mg doses, see section 5.2 Pharmacokinetic properties.
Cardiovascular outcomes
SOUL: Cardiovascular outcomes trial in patients with type 2 diabetes
In a double-blind, placebo-controlled, event driven trial, 9 650 patients, 50 years of age or older with type 2 diabetes at high cardiovascular risk, defined as having established cardiovascular disease and/or chronic kidney disease, were randomised to either semaglutide 14 mg (bioequivalent to semaglutide 9 mg) once-daily or placebo once daily added to standard of care.
In total, 5 468 patients (56.7%) had established cardiovascular disease without chronic kidney disease, 1 241 (12.9%) had chronic kidney disease only and 2 620 (27.2%) had both cardiovascular disease and kidney disease. The mean age at baseline was 66.1 years, and 71.1% of the patients were men. The mean duration of diabetes was 15.4 years, the mean HbA1c was 8.0%, the mean BMI was 31.1 kg/m2, and the mean eGFR was 73.8 mL/min/1.73 m2. Medical history included stroke (15.4%), myocardial infarction (40.0%), and peripheral artery disease (15.7%). At baseline, 26.9% of the patients were treated with sodium-glucose cotransporter2 (SGLT2) inhibitors.
The primary endpoint was time from randomisation to first occurrence of a major adverse cardiovascular event (MACE): cardiovascular death, non-fatal myocardial infarction, or non-fatal stroke. The primary endpoint, time to first MACE, occurred in 1 247 of the 9 650 included patients, 579 first MACE (12.0%) were recorded among the 4 825 patients treated with semaglutide, compared to 668 first MACE (13.8%) among the 4 825 patients treated with placebo.
Superiority of semaglutide versus placebo for MACE was confirmed with a hazard ratio of 0.86 [0.77; 0.96] [95% CI], corresponding to a relative risk reduction in MACE of 14 % (see Figure 1). The reduction of MACE with semaglutide was consistent across subgroups of age, sex, race, ethnicity, BMI at baseline, or level of kidney function impairment.
Analysis of the first composite kidney event (the first confirmatory secondary endpoint) resulted in a hazard ratio of 0.91 [0.80; 1.05] [95% CI].

Data from the in-trial period and based on full analysis set. Cumulative incidence estimates are based on time from randomisation to first EAC-confirmed MACE with non-CV death modelled as competing risk using the Aalen-Johansen estimator. Subjects without events of interest were censored at the end of their in-trial observation period. Time from randomisation to first MACE was analysed using a Cox proportional hazards model with treatment as categorical fixed factor. The hazard ratio and confidence interval are adjusted for the group sequential design using the likelihood ratio ordering.
CV: cardiovascular, EAC: event adjudication committee, MACE: major adverse cardiovascular event.
Figure 1: Time from randomisation to first MACE Cumulative incidence function plot

Data from the in-trial period and based on full analysis set. Time from randomisation to each endpoint was analysed using a Cox proportional hazards model with treatment as categorical fixed factor. Subjects without events of interest were censored at the end of their in-trial period. For the primary endpoint the HR and CI were adjusted for the group sequential design using likelihood ratio ordering. CV death includes both cardiovascular death and undetermined cause of death.
HR: hazard ratio CI: Confidence interval CV: cardiovascular, MI: myocardial infarction.
Composite kidney event: endpoint consisting of cardiovascular death, kidney death, onset of persistent ≥ 50% reduction in estimated glomerular filtration rate (CKD-EPI) compared with baseline, onset of persistent eGFR (CKD-EPI) < 15 mL/min/1.73 m2 or initiation of chronic kidney replacement therapy (dialysis or kidney transplantation).
MALE: major adverse limb events; composite endpoint consisting of acute or chronic limb ischemia hospitalisation.
Figure 2: Treatment effect for the primary endpoint, its components and other secondary endpoints (SOUL)
PIONEER 6: Cardiovascular outcomes trial in patients with type 2 diabetes
In a double-blind trial (PIONEER 6), 3 183 patients, 50 years of age or older - with type 2 diabetes at high cardiovascular risk were randomised to semaglutide 14 mg (bioequivalent to semaglutide 9 mg) once daily or placebo in addition to standard-of-care. The median observation period was 16 months. PIONEER 6 was a pre−approval CVOT designed to establish CV safety.
The primary endpoint was time from randomisation to first occurrence of a major adverse cardiovascular event (MACE): cardiovascular death, non-fatal myocardial infarction or non-fatal stroke.
The total number of first MACE was 137: 61 (3.8%) with semaglutide and 76 (4.8%) with placebo. The analysis of time to first MACE resulted in a HR of 0.79 [0.57; 1.11]95% CI.
Body weight
By end-of-treatment, 27‑45% of the patients had achieved a weight loss of ≥ 5% and 6‑16% had achieved a weight loss of ≥ 10% with semaglutide, compared with 12‑39% and 2‑8%, respectively, with the active comparators.
In the cardiovascular outcomes trial SOUL, a reduction in body weight from baseline to week 104 was observed with semaglutide vs placebo, in addition to standard-of-care (‑4.22 kg vs ‑1.27 kg).
Blood pressure
Treatment with semaglutide had reduced systolic blood pressure by 2‑7 mmHg.
Paediatric population
The MHRA has deferred the obligation to submit the results of studies with Rybelsus in one or more subsets of the paediatric population in type 2 diabetes (see section 4.2 for information on paediatric use).