Phase 3 · Semaglutide

STEP-HFpEF trial results

Effect of Semaglutide 2.4 mg Once Weekly on Function and Symptoms in Subjects With Obesity-related Heart Failure With Preserved Ejection Fraction

Change in Kansas City Cardiomyopathy Questionnaire Clinical Summary Score (KCCQ-CSS) (Score on a scale), From baseline (week 0) to end of treatment (week 52). Semaglutide 2.4 mg: 16.8; Placebo: 10.3.

Participants
529
Status
completed
Completed
2023-04-18
Sponsor
Novo Nordisk A/S

As posted on ClinicalTrials.gov (NCT04788511), updated at source Dec 5, 2025. Read again whenever the registry updates it. Registry figures can differ from a published paper, which may use another analysis.

Primary outcome

What STEP-HFpEF measured first

Change in Kansas City Cardiomyopathy Questionnaire Clinical Summary Score (KCCQ-CSS)Score on a scale · From baseline (week 0) to end of treatment (week 52) · mean
Semaglutide 2.4 mgn=243Placebon=237
16.8(17.9)10.3(17.3)
Change in Body WeightPercentage of body weight · From baseline (week 0) to end of treatment (week 52) · mean
Semaglutide 2.4 mgn=246Placebon=242
-13.9(8.1)-2.5(5.6)
Side effects by arm

Side effects in STEP-HFpEF

Percent of participants affected, From baseline (week 0) to end of trial (week 57). The most common events the registry lists.

EventSemaglutide 2.4 mgPlacebo
Any serious event13.3%26.7%
Nausea17.1%2.6%
COVID-1913.7%15.4%
Diarrhoea9.1%3.8%
Constipation6.5%2.6%
Vomiting6.5%1.1%
Secondary outcomes

What else it measured

Change in Six-minute Walking Distance (6MWD)Meters · From baseline (week 0) to end of treatment (week 52) · mean
Semaglutide 2.4 mgn=240Placebon=225
23.5(59.2)5.8(62.7)
The Hierarchical Composite Endpoint: Percentage of Wins of Participant PairsPercentages of wins of participant pairs · From baseline (week 0) to end of study (week 57) · number
Semaglutide 2.4 mgn=263Placebon=266
60.134.9
Change in C-Reactive Protein (CRP): Ratio to BaselineRatio of C-reactive protein · From baseline (week -2) to end of treatment (week 52) · geometric mean
Semaglutide 2.4 mgn=241Placebon=243
0.55(121.5)0.92(105.3)
Percentage of Participants Achieving 10 Percent (%) Weight Loss (Yes/No)Percentage of participants · From baseline (week 0) to end of treatment (week 52) · number
MeasureSemaglutide 2.4 mgn=246Placebon=242
No34.190.5
Yes65.99.5
Percentage of Participants Achieving 15% Weight Loss (Yes/No)Percentage of participants · From baseline (week 0) to end of treatment (week 52) · number
MeasureSemaglutide 2.4 mgn=246Placebon=242
No56.197.9
Yes43.92.1
Percentage of Participants Achieving 20% Weight Loss (Yes/No)Percentage of participants · From baseline (week 0) to end of treatment (week 52) · number
MeasureSemaglutide 2.4 mgn=246Placebon=242
No76.499.6
Yes23.60.4
Percentage of Participants Improving 5 Points or More in KCCQ Clinical Summary Score (Yes/No)Percentage of participants · From baseline (week 0) to end of treatment (week 52) · number
MeasureSemaglutide 2.4 mgn=243Placebon=237
No24.736.3
Yes75.363.7
Percentage of Participants Improving 10 Points or More in KCCQ Clinical Summary Score (Yes/No)Percentage of participants · From baseline (week 0) to end of treatment (week 52) · number
MeasureSemaglutide 2.4 mgn=243Placebon=237
No36.651.5
Yes63.448.5
Change in KCCQ Overall Summary Score (KCCQ-OSS)Score on a scale · From baseline (week 0) to end of treatment (week 52) · mean
Semaglutide 2.4 mgn=243Placebon=237
16.8(18.3)10.9(17.5)
Percentage of Participants Achieving Threshold for Clinically Meaningful Within-participants Change in KCCQ-CSS (PGI-S)Percentage of Participants · From baseline (week 0) to end of treatment (week 52) · number
Semaglutide 2.4 mgn=243Placebon=237
43.232.5
Percentage of Participants Achieving Threshold for Clinically Meaningful Within-participants Change in 6MWD (PGI-S)Percentage of Participants · From baseline (week 0) to end of treatment (week 52) · number
Semaglutide 2.4 mgn=240Placebon=225
42.528.0
Change in Systolic Blood Pressure (SBP)millimetre of mercury (mmHg) · From baseline (week -2) to end of treatment (week 52) · mean
Semaglutide 2.4 mgn=246Placebon=243
-6.4(19.0)-1.1(17.5)
The trial

How STEP-HFpEF was run

This study will look at how the participants daily life is affected by their heart failure. The study will also look at the change in participants body weight from the start to the end of the study. This is to compare the effect on heart failure symptoms and on body weight in people taking semaglutide (a new medicine) to people taking "dummy" medicine. Participants will either get semaglutide or "dummy" medicine - which treatment participants get is decided by chance. Participants will need to take 1 injection once a week. The study medicine is injected with a thin needle in a skin fold in the stomach area, thigh or upper arm. During the study participants will have talks with the study staff about healthy lifestyle choices including healthy food and physical activity. The study will last for approximately 59 weeks. Participants will have 11 clinic visits and 1 phone call with the study doctor. Women: Women cannot take part if they are pregnant, breast-feeding or plan to become pregnant during the study period.

  • Semaglutide: All participants will receive either semaglutide 2.4 mg once weekly or placebo once weekly as add-on to standard of care. During the first 16 weeks, the dose of semaglutide or placebo will be gradually escalated from 0.25 mg once weekly until target dose.
  • Placebo (semaglutide): All participants will receive either semaglutide 2.4 mg once weekly or placebo once weekly as add-on to standard of care. During the first 16 weeks, the dose of semaglutide or placebo will be gradually escalated from 0.25 mg once weekly until target dose.
Who could join the trial

Inclusion Criteria: * Male or female, age above or equal to 18 years at the time of signing informed consent. * Body mass index (BMI) greater than or equal to 30.0 kg/m\^2 * New York Heart Association (NYHA) Class II-IV * Left ventricular ejection fraction (LVEF) greater than or equal to 45 percentage at screening Exclusion Criteria: * A self-reported change in body weight greater than 5 kg (11 lbs) within 90 days before screening irrespective of medical records * Haemoglobin A1c (HbA1c) greater than or equal to 6.5 percentage (48 mmol/mol) based on latest available value from medical records, no older than 3 months or if unavailable a local measurement at screening

Published papers

Papers from STEP-HFpEF

Trial averages do not predict what one person will experience. Results are shown as the registry posts them, without interpretation.

GLPcompare is an informational data platform, not a medical provider or pharmacy. Nothing here is medical advice, a diagnosis, or a recommendation to start, stop, or change any treatment. Data is aggregated from public sources and can be incomplete or out of date. Always confirm with a licensed clinician and the current FDA label.