Mechanisms of Semaglutide Therapy in Heart Failure Patients
SEMAHEART
A Pilot Clinical Trial Investigating Underlying Mechanisms of Semaglutide Therapy in Heart Failure Patients
1 other identifier
interventional
10
2 countries
3
Brief Summary
Semaglutide is a glucagon-like peptide-1 (GLP-1) receptor agonist, primarily used for treatment of type-2 diabetes mellitus. GLP-1 receptors are present on pancreatic islet β-cells, δ-cells and α-cells. Their stimulation increases insulin and somatostatin secretion, and decreases glucagon secretion. In addition, GLP-1 receptor agonists appear to have multiple extrapancreatic actions, which remain poorly defined. In large clinical trials, semaglutide improved the outcomes in obese patients, patients with heart failure with preserved ejection fraction, and decreased the heart failure hospitalizations in patients with type 2 diabetes. The aim of the present study is to investigate the underlying mechanisms of the beneficial clinical effects of semaglutide in the setting of chronic heart failure.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_1 heart-failure
Started Jul 2024
3 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
July 10, 2024
CompletedFirst Submitted
Initial submission to the registry
July 11, 2024
CompletedFirst Posted
Study publicly available on registry
August 7, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 10, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
September 1, 2025
CompletedAugust 7, 2024
July 1, 2024
1 year
July 11, 2024
August 5, 2024
Conditions
Outcome Measures
Primary Outcomes (11)
Interleukin-6 (IL-6)
Measured using enzyme linked immunosorbent assay (ELISA). Units of Measure: picograms per milliliter (pg/mL).
4 months
Interleukin-8 (IL-8)
Measured using ELISA. Units of Measure: picograms per milliliter (pg/mL).
4 months
Tumor Necrosis Factor-alpha (TNF-α)
Measured using ELISA. Units of Measure: picograms per milliliter (pg/mL).
4 months
Interferon-gamma (IFN-γ)
Measured using ELISA. Units of Measure: picograms per milliliter (pg/mL).
4 months
B-type Natriuretic Peptide (BNP)
Measured using immunoassay. Units of Measure: picograms per milliliter (pg/mL).
4 months
C-reactive Protein (CRP)
Measured using immunoassay. Units of Measure: picograms per milliliter (pg/mL).
4 months
Hemoglobin A1C (HgA1C)
Measured using standard laboratory methods. Units of Measure: percent (%).
4 months
Complete Blood Count (CBC)
Measured using automated hematology analyzer. CBC parameters will be measured in their respective units (e.g., cells per microliter).
4 months
Comprehensive Metabolic Panel (Chem 7)
Measured using standard laboratory methods. Chem 7 parameters will be measured in their respective units (e.g., mg/dL, U/L).
4 months
Liver Function Tests (LFT)
Measured using standard laboratory methods. LFT parameters will be measured in their respective units (e.g., mg/dL, U/L).
4 months
Body mass index
Patient weight will be measured in kilograms and height will be measured in meters. Body mass index (BMI) will be calculated according to the standard formula: weight in kilograms divided by height in meters squared.
4 months
Secondary Outcomes (9)
Left ventricular end-systolic volume (LVESV)
4 months
Left ventricular end-diastolic volume (LVEDV)
4 months
Myocardial mass
4 months
Left ventricular ejection fraction (LVEF)
4 months
Left ventricular filling pressures (E/e')
4 months
- +4 more secondary outcomes
Study Arms (1)
Semaglutide Therapy
EXPERIMENTALTimepoints: * Baseline (Week 0) * Week 2 (Visit 1) * Week 4 (Visit 2) * Week 12 (Visit 3) * Week 16 (Visit 4) Medication Schedule: Subcutaneous semaglutide (Ozempyc, Novo Nordisk A/S Bagsvaerd, Denmark) First 2 weeks: Semaglutide; 0.25 mg weekly Second 2 weeks: Semaglutide; 0.5 mg weekly Remaining 12 weeks: Semaglutide; 1 mg weekly
Interventions
10 overweight patients with heart failure will be enrolled, including 5 patients with heart failure with preserved ejection fraction (HFpEF) and 5 patients with heart failure with reduced ejection fraction (HFrEF). The diagnosis of HFpEF and HFrEF will be based on the most recent European Society of Cardiology guidelines for the diagnosis and treatment of heart failure. After their baseline blood sample collections, all participants will receive once-weekly subcutaneous semaglutide (Ozempyc, Novo Nordisk A/S Bagsvaerd, Denmark) at a dose of 0.25 mg for 2 weeks, 0.5 mg for 2 weeks, and then 1.0 mg for a period of 12 weeks. At the end of the 3-month and 4-month period, blood sample collections will be repeated. All blood samples will be sent to Stanford Cardiovascular Institute for further analyses. At baseline, and again at 4 months transthoracic echocardiography, 6-minute walk test, and body composition assessment will be performed.
Eligibility Criteria
You may qualify if:
- Age: 20-80 years
- Presence of heart failure
- Body-mass index 27 kg/m2 or greater
- Stable optimally tolerated dosages of heart failure therapies for 3 months
- N-terminal pro B-type natriuretic peptide levels \>350 pg/mL
You may not qualify if:
- Presence of type 1 or type 2 diabetes or glycated haemoglobin higher than 6.5%
- Pregnancy or potential to become pregnant
- Cancer
- Liver dysfunction (aspartate aminotransferase and/or alanine aminotransferase \> 3 times upper limits of normal or total bilirubin greater than 1.5 times upper limits of normal)
- Renal dysfunction (estimated glomerular filtration rate less than 25 mL/min/1.73 m2)
- Hospitalization in the past 3 months for reasons other than heart failure
- New York Heart Association (NYHA) functional class I or functional class IV symptoms.
- Prior or planned bariatric surgery
- Self-reported change in body weight \>11 lbs (5 kg) within 3 months before enrollment
- Acute or chronic infection
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University Medical Centre Ljubljanalead
- Stanford Universitycollaborator
- Greenstone Biosciencescollaborator
Study Sites (3)
Greenstone Biosciences
Palo Alto, California, 94304, United States
Stanford Cardiovascular Institute
Stanford, California, 94305, United States
University Medical Center Ljubljana
Ljubljana, 1000, Slovenia
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 11, 2024
First Posted
August 7, 2024
Study Start
July 10, 2024
Primary Completion
July 10, 2025
Study Completion
September 1, 2025
Last Updated
August 7, 2024
Record last verified: 2024-07
Data Sharing
- IPD Sharing
- Will not share