Weight-Loss drug wegovy could boost heart ablation success
NCT ID NCT07275697
First seen Jun 27, 2026 · Last updated Aug 11, 2026 · Updated 2 times
Summary
This study tests whether taking semaglutide (Wegovy) for at least three months before a first-time atrial fibrillation ablation can improve heart rhythm outcomes. 200 overweight or obese adults scheduled for ablation will be randomly assigned to either standard care or semaglutide plus lifestyle advice. The main goal is to see if semaglutide reduces the chance of abnormal heart rhythms returning within a year after the procedure.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Semaglutide (Wegovy), a weight-loss drug
- What this could lead to
- If successful, this could show that using a weight-loss drug before heart ablation improves long-term heart rhythm control and reduces the need for repeat procedures.
- What could go wrong
- This is a Phase 4 trial with only 200 participants, so results may not apply to everyone. Semaglutide can cause side effects like nausea, vomiting, and diarrhea.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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About 200 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Mar 2026
- Expected to finish
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Dec 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: To be included in the trial, subjects must meet all of the following criteria: 1. Provision of written informed consent prior to participation. 2. Age ≥18 years. 3. Scheduled for first-time catheter ablation for atrial fibrillation using a pulmonary vein isolation (PVI) technique. 4. Body Mass Index (BMI) ≥30 kg/m² (obesity) OR BMI ≥27 kg/m² (overweight) with one or more of the following comorbidities: * prediabetes (defined as HbA1c 39-47 mmol/mol or fasting glucose 5,6-6,9 mmol/L), * known diabetes type 2 * known hypertension (prior diagnosis and/or treatment with antihypertensive medication) * new diagnosis of hypertension (according to ESC GL for hypertension: Systolic BP ≥140 mmHg and/or diastolic BP ≥ 90 mmHg based on two readings on two separate visits, OR Ambulatory BP monitoring (24h average) ≥ 130/80 mmHg) * dyslipidemia defined as either one of the following * Known diagnosis of hyperlipidemia or * Treatment with lipid lowering medication OR either of the following: * LDL \> 3.0 mmol/l * Total cholesterol \> 5 mmol/l * Triglycerides \> 1.7 mmol/l * HDL (\< 1 mmol/l if male, \< 1.2 mmol/l if female) AND/OR * atherosclerotic cardiovascular disease (prior myocardial infarction (MI), stroke, or peripheral arterial disease with claudication and ankle-brachial index \<0.85, prior revascularization, or amputation) * obstructive sleep apnea. 5. For women of childbearing potential: Inclusion after a highly sensitive negative pregnancy test and agreement to use highly effective contraception during the study period (e.g., hormonal contraception, intrauterine device, or barrier method combined with spermicide). Exclusion Criteria: * Morbid obesity (BMI \>40 kg/m²). * Current use of GLP-1 receptor agonist therapy or dual agonist therapy within 6 months before screening. * Current use of DPP-IV inhibitors. * Diabetes type 1 * Known intolerance or contraindication to semaglutide. * History of pancreatitis or recurrent hypoglycemia. * Uncontrolled diabetic retinopathy * Severe renal failure (estimated glomerular filtration rate \[eGFR\] \<15 mL/min/1.73 m² or in dialysis) * Severe hepatic failure (decompensated liver disease Child-Pugh class C) * Severe cardiac failure (NYHA class IV) * Life expectancy \<12 months. * Inability to self-administer the investigational medicinal product. * Prior catheter ablation procedure for atrial fibrillation. * Pregnancy, breastfeeding, or planned pregnancy during or within two months after the study period. * Participation in another interventional clinical trial within the past 30 days.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Karolinska University Hospital
RECRUITINGStockholm, 141 86, Sweden
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