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Semaglutide tablets and heart risk

Rybelsus and heart risk: what the semaglutide tablet label says about its cardiovascular indication and the 9,650-person SOUL trial behind it.

Published · Updated · GLP-1 medications · Written by the PepLabo editorial team

When to get help
Context and scope

Semaglutide tablets were first approved to lower blood sugar. Their US label now adds a second use in certain adults with type 2 diabetes. Here is what that indication covers, what the trial behind it measured, which parts of its results are firm and which are not, and how European and Canadian documents describe the same evidence.

Key takeaways 4
  • The trial used Rybelsus® 14 mg; the label pairs it with Ozempic® 9 mg tablets for switching, but says the two products are not interchangeable milligram for milligram. [1]
  • Only the combined three-part outcome was the confirmed result; the separate parts were shown for support, and non-fatal heart attack showed the clearest difference. [1]
  • The kidney outcome tested next in SOUL did not differ clearly from placebo, and the tablets have no kidney indication. [3][4]
  • Side effects led to stopping the study drug in 15.5% on the tablets and 11.6% on placebo. [1]

What the indication says

Section 1 of the label lists two uses for Rybelsus® and Ozempic® tablets in adults with type 2 diabetes. The first is improving blood sugar control alongside diet and exercise. The second is reducing the risk of major adverse cardiovascular events, often shortened to MACE: death from a cardiovascular cause, a heart attack that is not fatal, or a stroke that is not fatal [1].

It applies to adults at high risk for these events; the Recent Major Changes box dates the change to 10/2025 [1]. Ozempic® injection has its own, older cardiovascular indication, worded for adults with established cardiovascular disease and based on a different trial, SUSTAIN 6 [2].

How the US, EU and Canadian documents compare

The same SOUL data appear in all three regulators’ documents, but with different wording. The table summarises what we found on 20 October 2026.

Semaglutide tablets and heart risk in three regulators’ documents (checked 20 October 2026)
DocumentCardiovascular wordingWhere
Rybelsus® and Ozempic® tablets, US prescribing information, revised 1/2026 [1]Reduce the risk of cardiovascular death, non-fatal heart attack or non-fatal stroke in adults with type 2 diabetes at high risk of these eventsSection 1; SOUL as Trial 7 in 14.4
Rybelsus®, EU product information [4]No separate cardiovascular indication; the diabetes indication points to section 5.1, where SOUL and PIONEER 6 are describedSections 4.1 and 5.1
Rybelsus®, Canadian product monograph, authorized 13 July 2026 [5]Reduce the risk of the same three events in adults with type 2 diabetes who have established cardiovascular disease or are at high riskSection 1; SOUL in section 14

Two tablet products and one trial dose

The US label now covers two tablet products with different strengths: Rybelsus® at 3, 7 and 14 mg and Ozempic® tablets at 1.5, 4 and 9 mg. It states that they are not substitutable on a milligram-to-milligram basis, and its switching table pairs Rybelsus® 14 mg with Ozempic® tablets 9 mg [1]. The EU product information describes the 14 mg tablet used in SOUL as bioequivalent to its own 9 mg strength [4].

Wegovy® tablets are a separate semaglutide product with a different dose and their own heart indication, written for adults with established cardiovascular disease and obesity or overweight [6]. Numbers from SOUL cannot be moved across to another product or strength, and which product and dose fit you is your prescriber’s decision.

Who took part

The label calls the study Trial 7 and gives its registry number, NCT03914326. On ClinicalTrials.gov, the public trial registry of the US National Library of Medicine, the same study is listed as a phase 3 trial with the acronym SOUL [1][7].

Everyone enrolled had type 2 diabetes, was at least 50 years old and had established cardiovascular disease, chronic kidney disease (an eGFR below 60), or both. Just over half (56.7%) had heart or vessel disease without kidney disease, 13% had kidney disease only and 27% had both [1]. The published summary adds that HbA1c had to be between 6.5% and 10.0% at entry [3].

The average participant was 66 years old, with diabetes for 15.4 years; 71% were men. Mean HbA1c was 8%, mean BMI 31.1 and mean eGFR 73.8. Many had other serious conditions: 91% high blood pressure, 40% a previous heart attack, 23% heart failure and 16% peripheral artery disease. Nearly all used other diabetes medicines, including metformin (76%), insulin (51%) and SGLT2 inhibitors (27%), and most took cholesterol-lowering drugs (89%) and platelet inhibitors such as aspirin (77%) [1].

How the trial was run

Participants were randomly assigned, double-blind, to one 14 mg semaglutide tablet a day or a placebo tablet, on top of their usual care [1].

The main question was how long it took until a first MACE event. Median follow-up was about 49 months in both groups; the summary gives a mean of 47.5 months [1][3]. The label reports that 98.4% completed the trial and that vital status was known for 99.5% at the end, which matters because people lost to follow-up can blur an outcome trial [1].

The main result

A first MACE event occurred in 579 of 4,825 people on semaglutide tablets (12%) and in 668 of 4,825 on placebo (13.8%). The label reports a hazard ratio of 0.86, with a 95% confidence interval of 0.77 to 0.96, and says the tablets significantly reduced MACE [1]. Expressed per year, the summary gives 3.1 first events per 100 person-years on the tablets and 3.7 on placebo [3].

A hazard ratio compares how often first events happened in each group over time. A value below 1 means first events happened less often in the tablet group; the EU and Canadian documents describe 0.86 as a 14% lower relative risk [4][5]. In raw numbers, 12% of people on the tablets and 13.8% on placebo had an event over about four years. Both readings are useful when you talk it over with your clinician.

Trial 7 (SOUL): first events by type (section 14.4)
OutcomePlacebo (n = 4,825)Semaglutide 14 mg (n = 4,825)Hazard ratio (95% CI)
MACE (main outcome) [1]668 (13.8%)579 (12%)0.86 (0.77 to 0.96)
Cardiovascular death320 (6.6%)301 (6.2%)0.93 (0.8 to 1.09)
Non-fatal heart attack253 (5.2%)191 (4%)0.74 (0.61 to 0.89)
Non-fatal stroke161 (3.3%)144 (3%)0.88 (0.7 to 1.11)

Reading the three parts and the next outcomes

The label shows the three components of MACE separately and notes that they are listed descriptively, as support for the main result. They were not tested as separate claims [1].

The largest difference was in non-fatal heart attacks. For cardiovascular death and non-fatal stroke the confidence intervals include 1, so the trial alone cannot tell whether those parts differed. That is common in outcome trials.

SOUL also tested further outcomes in a fixed order. The first was a composite of serious kidney events, which gave a hazard ratio of 0.91 (0.80 to 1.05) in the EU product information, and the published summary says none of the confirmatory secondary outcomes differed significantly from placebo [3][4]. The Canadian monograph notes that its secondary results were not controlled for multiple testing [5].

An earlier, shorter safety trial

The label also describes Trial 8, registered as PIONEER 6 (NCT02692716): 3,183 adults with type 2 diabetes and heart or vessel disease or other risk factors, followed for a median of 16 months [1][8]. The EU text calls it a pre-approval trial meant to establish cardiovascular safety [4].

It was designed to rule out an unacceptable rise in risk, using a margin of 1.3, not to prove a reduction. That aim was met: MACE occurred in 3.8% of the tablet group and 4.8% on placebo, a hazard ratio of 0.79 with an interval (0.57 to 1.11) that crossed 1 [1].

Safety findings from the long trial

In Trial 7 the label says safety data collection was limited to serious adverse events, events that led to stopping and events of special interest. The study drug was stopped permanently because of an adverse event by 15.5% of the tablet group and 11.6% of the placebo group [1]. The summary reports serious adverse events in 47.9% on the tablets and 50.3% on placebo [3].

Gallbladder events appear in the warnings: gallstones in 1.1% versus 0.9%, and gallbladder inflammation in 1.1% versus 0.7% [1]. Adjudicated acute pancreatitis was 0.4% in both groups, according to the EU text [4]. The diabetic eye warning in the tablet label draws on a two-year outcome trial of semaglutide injection, and asks that people with a history of diabetic retinopathy be monitored [1].

Where this sits among semaglutide heart indications

Three separate US semaglutide labels now carry a heart indication, each based on a different trial and population: Ozempic® injection for adults with type 2 diabetes and established cardiovascular disease, Rybelsus® and Ozempic® tablets for adults with type 2 diabetes at high risk, and Wegovy® injection and tablets for adults with established cardiovascular disease and obesity or overweight [1][2][6].

Each indication rests on its own trial, and the Wegovy® Medication Guide says Wegovy® should not be used together with other semaglutide-containing products or other GLP-1 receptor agonists [6]. Which medicine, which form and whether any of these indications applies to you are for your prescriber to decide.

Rybelsus®, Ozempic® and Wegovy® are registered trademarks of Novo Nordisk A/S. PepLabo is not affiliated with or endorsed by Novo Nordisk.

When to get help

The signs and contact information below come from this article’s sourced guidance.

Emergency

  • Chest pressure, squeezing or pain lasting more than a few minutes, or sudden shortness of breath

    Contact: Emergency services (911 or your local number), even if unsure

    MedlinePlus [9]

  • Sudden numbness or weakness on one side, confusion, trouble speaking or seeing, or a sudden severe headache

    Contact: Emergency services (911 or your local number)

    MedlinePlus [10]

  • Strong belly pain that keeps going, sometimes reaching the back, whether or not you feel sick or vomit

    Contact: Stop the tablets and call your prescriber right away, as the guide says

    Medication Guide [1]

Today

  • Pain in the upper stomach, yellowing of the skin or eyes, fever or clay-coloured stools

    Contact: Your prescriber

    Medication Guide, gallbladder problems [1]

  • Changes in your vision during treatment

    Contact: Your prescriber

    Medication Guide [1]

At your next appointment

  • Questions about whether the heart indication applies to you, or how a tablet fits with your other heart medicines

    Contact: Your prescriber or cardiologist

    US label, section 1 [1]

Questions

Is Rybelsus® approved for the heart?

Its label lists reducing the risk of cardiovascular death, non-fatal heart attack and non-fatal stroke as an indication, but only in adults with type 2 diabetes who are at high risk of these events [1]. It is not a general heart medicine.

What does a hazard ratio of 0.86 mean?

It compares how often a first event happened in each group over time. A value below 1 favours the tablet group. In Trial 7 the label reports 0.86 (0.77 to 0.96); in raw numbers, 12% versus 13.8% of people had a first event over about four years [1].

Is SOUL the same trial as PIONEER 6?

No. PIONEER 6 (Trial 8 in the label) was a 16-month safety trial designed to rule out added risk. SOUL (Trial 7) followed 9,650 people for about four years and is the basis for the cardiovascular indication [1].

Do Ozempic® tablets have the same heart indication as Rybelsus®?

Yes. Both share one US label, and section 1 lists the same two uses for each [1]. The trial itself used Rybelsus® 14 mg, and the label says the two products are not interchangeable milligram for milligram.

Did SOUL show a kidney benefit?

Not clearly. The composite kidney outcome had a hazard ratio of 0.91 (0.80 to 1.05), and the summary says the confirmatory secondary outcomes did not differ significantly [3][4]. The tablets have no kidney indication; Ozempic® injection has one, based on a separate trial [1][2].

Is the indication the same in Europe and Canada?

Not quite. The EU product information describes SOUL in section 5.1 without a separate heart indication, while the Canadian monograph covers adults with type 2 diabetes who have established cardiovascular disease or are at high risk [4][5].

Sources

Sources checked on

  1. RYBELSUS® and OZEMPIC® tablets Prescribing Information and Medication Guide, Novo Nordisk Revised 1/2026. Sections 1, 2.1, 2.3, 5.3, 5.8, 6.1, 14.1, 14.4 (Table 10) and Medication Guide.
  2. OZEMPIC® (semaglutide) injection Prescribing Information, Novo Nordisk Revised 05/2026. Sections 1, 14.2 and 14.3.
  3. McGuire DK et al. Oral Semaglutide and Cardiovascular Outcomes in High-Risk Type 2 Diabetes (SOUL). N Engl J Med 2025;392:2001-2012 Randomized, placebo-controlled trial. PubMed abstract.
  4. Rybelsus® EPAR product information (SmPC and package leaflet), European Medicines Agency Accessed 20-10-2026. Sections 4.1, 4.2, 4.8 and 5.1 (SOUL, PIONEER 6).
  5. RYBELSUS® (semaglutide tablets) Product Monograph, Novo Nordisk Canada Date of authorization 2026-07-13. Section 1 and section 14 (SOUL, Table 15).
  6. WEGOVY® (semaglutide) injection and tablets Prescribing Information, Novo Nordisk Revised 06/2026. Section 1 and Medication Guide.
  7. Semaglutide Cardiovascular Outcomes Trial in Patients With Type 2 Diabetes (SOUL), ClinicalTrials.gov Registry record NCT03914326.
  8. A Trial Investigating the Cardiovascular Safety of Oral Semaglutide in Subjects With Type 2 Diabetes (PIONEER 6), ClinicalTrials.gov Registry record NCT02692716.
  9. Heart Attack, MedlinePlus U.S. National Library of Medicine.
  10. Stroke, MedlinePlus U.S. National Library of Medicine.