ClinicalTrials.gg
Not yet recruitingNCT07816744DANWRAPUpdated Oct 5, 2026

Danish Trial of Weight Loss to Reduce Atrial Fibrillation Progression

An interventional study of Structured weight loss program including behavioral support and optional meal re-placement or pharmacotherapy with Glucagon-like peptide-1 receptor agonists (GLP1-RA) and Standard Care (in control arm) in Atrial Fibrillation (AF) and Obesity & Overweight, sponsored by Axel Brandes. Not yet recruiting at 2 sites in Denmark. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-05.

Sponsored by Axel Brandes · Not applicable, Interventional, and Treatment

Updated Oct 5, 2026Interventions changedSponsor changedGo to Updates ↓

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Phase
Not applicable
Study type
Interventional
Enrollment
480
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-14

Among 176 studies in Atrial Fibrillation with a site in Denmark — 32 open to participants now, 49 under way, 3 of them phase 3. Atrial Fibrillation · Denmark.

Planned enrollment
56th of 140
480 · median 273
Started
2026
with 8 others
No phase
73 of 176
19 open now
Primary completion
2030-04
later than 46 of 48 live
Registered
175th of 176
by date

Among the 176 studies in Atrial Fibrillation with a site in Denmark, this one is the 56th largest by planned enrollment of the 140 interventional ones that give a count, is one of 9 that started in 2026, is one of 73 with no phase, reaches primary completion later than 46 of the 48 other live ones, and was the 175th registered.

Atrial Fibrillation

4,009 studies on the registry are indexed under Atrial Fibrillation; 960 are open to participants now.

Browse Atrial Fibrillation studies →

Open to participants now

32 of the 176 studies in Atrial Fibrillation with a site in Denmark are open now. Recruiting first, the newest first:

27 more — sign in →

All 32 open studies →

A study can be open while its sites in Denmark have not opened yet or have stopped. Only those recruiting at a site in Denmark →

Who these studies take

Of the 611 Atrial Fibrillation studies recruiting now, 407 (67%) set no upper age limit and 43 (7%) stop at 75 or younger; 21 take children under 18; 43 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 176 studies in Atrial Fibrillation with a site in Denmark, or all of them as a file.
02

Study summary

Obesity is an important risk factor for the development and progression of atrial fibrillation. Sustainable weight loss likely reduces the burden of atrial fibrillation, which has yet to be proven in adequately sized randomised trials.

In a national, multicentre randomised trial we will test, whether a sustainable weight loss of more than 10% reduces atrial fibrillation progression and burden in patients with symptomatic paroxysmal or early persistent atrial fibrillation and a body mass index ≥27 kg/m2. A total of 480 patients will be randomised in a 1:1 fashion to either a comprehensive weight loss programme of behavioural support, meal replacement and/or pharmacotherapy with a glucagon-like peptide-1 receptor agonist on top of standard care aiming at more than 10% weight loss or standard care alone. Standard care will include guideline-directed anticoagulant therapy for stroke prevention, rate and/or rhythm control treatment, and management of risk factors and underlying cardiovascular conditions. Patients in the standard care group will receive information on weight management, but no active treatment for weight loss. Patients will be enrolled during a period of two and a half years and will be followed for one year with an equal number of study visits in both study arms. All patients will receive a 14-day continuous electrocardiographic monitoring at baseline, four, eight, and 12 months.

The study endpoints will be assessed after a 4-months blanking period from month four to 12 to allow for weight loss. The primary endpoint will be a hierarchical composite of atrial fibrillation progression, symptom burden, and treatment escalation. Secondary endpoints will be a change in weight, total atrial fibrillation burden, quality of life, and metabolic and cardiovascular biomarkers from baseline to 12 months. Safety endpoints will be adverse events related to treatment with glucagon-like peptide-1 receptor agonists and weight loss. Endpoint adjudication will be blinded.

03

Conditions studied

  • Atrial Fibrillation (AF)
  • Obesity & Overweight

Keywords

  • Atrial fibrillation
  • Overweight
  • Obesity
  • Glucagon-like peptide-1 receptor agonist
  • Atrial fibrillation burden
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Symptomatic paroxysmal* or persistent** AF
  • Sinus rhythm at inclusion (Visit 1)
  • ≥27 kg/m2
  • Age>18 years
  • At least one 12-lead or other single- or multiple-lead ECG device (e.g. Holter monitor-ing or ECG-providing wearables) documented episode during 6 months prior to inclusion

    * Paroxysmal AF in this trial is defined as at least 2 episodes, either self-terminating or cardioverted within 7 days, during 6 months prior to in-clusion

    **Persistent AF in this study is defined as the following:

  • Duration of an AF episode >7 days and \< 6 months
  • Total documented AF history \< 5 years

Exclusion criteria

Exclusion criteria:

  • Atrial flutter as the primary arrhythmia. (Patients with previous or isolated episodes of atrial flutter may be included, provided that AF is the dominant arrhythmia and the primary target of clinical management)
  • Implanted electronic device (pacemaker/ICD/ICM)
  • Type 1 diabetes or Type 2 diabetes on insulin treatment
  • Severe heart failure ( \<40%)
  • Inability to sign
  • Severe kidney disease (\<30)
  • History of catheter ablation for AF
  • Scheduled to receive catheter ablation for AF during the study period (next 1 year)
  • Incretin-based therapy (GLP-1 receptor agonists or DPP-IV inhibitors) within 30 days prior to randomization (visit 1)
  • Scheduled for bariatric surgery during the study period
  • Hypertrophic cardiomyopathy, ARVC/D, non-compaction or amyloidosis
  • Chronic or previous acute pancreatitis
  • Current participation in any other clinical intervention trial that may result in changes to med-ical management during the study period
  • Women of who are not on an acceptable form of
  • Pregnant or breastfeeding women
  • Personal or family history of medullary thyroid carcinoma (MTC)
  • History of MEN2 (Multiple Endocrine Neoplasia type 2)
Terms in these criteria, in plain language(7)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

LVEF (left ventricular ejection fraction)

The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
480 participants (estimated)

Study arms

  • Active comparator
    Structured weight loss program

    Structured weight loss program including behavioral support and optional meal re-placement or pharmacotherapy with Glucagon-like peptide-1 receptor agonists (GLP1-RA), aiming for \>10% weight loss on top of standard care.

    Other: Structured weight loss program including behavioral support and optional meal re-placement or pharmacotherapy with Glucagon-like peptide-1 receptor agonists (GLP1-RA)

  • Other
    Standard care

    Standard care, including cardiovascular risk factor management, with visit frequency and follow-up similar to the intervention group.

    Other: Standard Care (in control arm)

Interventions

  • OtherStructured weight loss program including behavioral support and optional meal re-placement or pharmacotherapy with Glucagon-like peptide-1 receptor agonists (GLP1-RA)

    Weight loss period (0-16 weeks): Behavioural support (first step): Dietician-guided lifestyle vhanges through virtual meeting, frequency by patient's choice; energy intake 1500 kcal/day; \<30% carbohydrates, \>=60 g protein/day, adeqaute fiber, 2-2.5 L/day non-caloric fluids. Escalation strategy (second step): Meal replacement: available free of charge Pharmacotherapy: Semaglutide once weekly subcutaneous injection Target weight loss \>10%; aiming for a 1% weight loss per week during the weight loss period. Weight loss maintenance period (17-52 weeks): Maintenance of \>10% weigth loss Further lifestyle changes, meal replacement, or dose adjustment of weight loss medication

  • OtherStandard Care (in control arm)

    Guideline-directed cardiovascular risk factor management, including medical treatment and lifestyle counseling.

This study also gives Semaglutide. No intervention listed here names it: that was found by reading the record.

06

What researchers measure

Primary outcomes

  1. Hierarchical composite outcome capturing AF progression and AF burden, inte-grating clinical events assessed by blinded adjudication and objective measures of AF burden, assessed by 14-day continuous ECG monitoring

    The hierarchical components of the primary outcome are: 1. Unplanned contact to a cardiology department or emergency department visit with a primary diagnosis of AF 2. Unplanned hospital visit for heart failure 3. High AF burden defined as: AF burden ≥10% (i.e., ≥33.8 hours of cumulative AF) during any of the 14-day ECG monitoring periods at 4, 8, or 12 months 4. Moderate AF burden defined as: AF burden ≥5% (i.e., ≥16.8 hours of cumulative AF) during any of the 14-day ECG monitoring periods at 4, 8, or 12 months 5. Planned cardioversion (electrical or pharmacological), including pill-in-the-pocket therapy using Class Ic antiarrhythmic agents (e.g. flecainide)

    Time frame: From 4 months to 12 months after enrollment

07

Study locations

2 sites
08

References and documents

Individual participant data

Plan to share: No — There is no plan at this stage, but a detailed plan may be shared at a later stage of the study.

No publications or documents are linked to this record.

09

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Oct 2026; primary completion for Apr 2030, 42 months later.

Of 795 non-industry interventional studies with no phase under Atrial Fibrillation, half reached primary completion within 39 months of starting (the median), counting those still running; a quarter within 21 and three quarters within 59. This study's planned 42 months is close to that.

Counting every sponsor, half of 1,050 studies reached it within 33 months; a quarter within 18 and three quarters within 54.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 8, 2026
First posted
Sep 14, 2026
StartEst.
Oct 1, 2026
Primary completionEst.
Apr 2030
CompletionEst.
Sep 2030
Last update
Oct 5, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Interventions
Arm changed Intervention→Structured weight loss program; Control→Standard care
Oct 5, 2026
Sponsor
Collaborators added: Copenhagen University Hospital, Rigshospitalet·Holbaek Sygehus; collaborators removed: Rigshospitalet, Denmark·Holbaek Hospital
Oct 5, 2026
Show all 1 update
  1. Oct 5, 2026
    Interventions Arm changed Intervention→Structured weight loss program; Control→Standard care
    Sponsor Collaborators added: Copenhagen University Hospital, Rigshospitalet·Holbaek Sygehus; collaborators removed: Rigshospitalet, Denmark·Holbaek Hospital
    + 1 other change: data sharing statement

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07816744
Lead sponsor
Axel Brandes
Collaborators
University Hospital Bispebjerg and Frederiksberg, Copenhagen University Hospital, Rigshospitalet, Regionshospital Nordjylland, Viborg Regional Hospital, Aarhus University Hospital, Holbaek Sygehus
Responsible party
Axel Brandes (Professor, M.D., Esbjerg Hospital - University Hospital of Southern Denmark) — Sponsor-investigator
First posted
Sep 14, 2026
Start date
Oct 1, 2026 (estimated)
Primary completion
Apr 2030 (estimated)
Completion
Sep 2030 (estimated)
Last update
Oct 5, 2026

Study contacts

Axel Brandes, M.D.
Contact
Axel.Brandes@rsyd.dk
+4579184491
Axel Brandes, M.D.
principal investigator · Esbjerg Hospital - University Hospital of Southern Denmark
Eva Prescott, PhD
principal investigator · University Hospital Bispebjerg and Frederiksberg

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Sep 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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