Clinical Trials Logo

Clinical Trial Details — Status: Active, not recruiting

Administrative data

NCT number NCT03053843
Other study ID # MeDiet+EVOO after AF ablation
Secondary ID
Status Active, not recruiting
Phase N/A
First received
Last updated
Start date March 22, 2017
Est. completion date January 31, 2022

Study information

Verified date April 2020
Source Fundación de investigación HM
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Background: Atrial fibrillation (AF) is the most frequent cardiac arrhythmia and represents a high priority public health problem, as in a few decades it will become a possibly unsustainable load for the national health system. Preventive and therapeutic strategies based on the best possible scientific evidence are required. Ablation therapy, despite being the most effective approach, is associated with a 30-35% arrhythmic recurrence rate. An intervention with Mediterranean diet and extra virgin olive oil (EVOO) has proven effective in primary prevention and reduced the incidence of AF in high-risk subjects in a recent, large, randomized trial (PREDIMED).

Methods: Parallel, randomized, multicenter nutritional intervention trial in 640 patients with AF treated with catheter ablation. Two groups will be randomized in a 1:1 ratio: 1) intervention with Mediterranean diet and EVOO; 2) usual care (control group). The primary objective will be the incidence of atrial tachyarrhythmias for two years after ablation. At least 190 recurrences are expected after 2 years (median) of follow-up. A relative risk of 0.7 is assumed and statistical power of 80%. Follow-up visits will be scheduled at 3, 6, 12, 18 and 24 months. In addition to the in-person visits, event monitors will be used to document episodes. Dietary intervention will be carried out by nutritionists who will use methods adapted from the PREDIMED trial with contacts every 2 months. 1 liter of EVOO per week will be provided for free in the intervention arm. Inflammatory markers will be analyzed in both groups during follow-up. Cox models will be used to estimate adjusted hazard ratios.


Recruitment information / eligibility

Status Active, not recruiting
Enrollment 720
Est. completion date January 31, 2022
Est. primary completion date January 31, 2020
Accepts healthy volunteers No
Gender All
Age group 18 Years to 85 Years
Eligibility Inclusion Criteria:

- Patients with symptomatic paroxysmal AF (with evidence of more than one symptomatic episode in the last year and at least one documented episode) upon whom catheter ablation is performed.

- Patients with persistent symptomatic AF upon whom catheter ablation is performed.

Exclusion Criteria:

- Serious medical condition that prevents dietary intervention (gastrointestinal disease with intolerance to fats, advanced malignancy, neurological, psychiatric or severe endocrine disease)

- Any other pathology or medical condition that limits survival to less than one year; Immunodeficiency or HIV-positive,

- Consumption of illegal drugs,

- Chronic alcoholism or total consumption of alcohol >80 g/d

- Body mass index > 40 kg/m 2,

- Difficulty or major inconvenience with changing dietary habits, inability to follow a style of Mediterranean diet, low probability of changing dietary habits according to the models of Prochaska and Diciemente (Nigg, 1999)

- History of food allergy or hypersensitivity to any component of EVOO

- Participation in a clinical trial carried out with drugs or use of a drug in experimental state during the year prior to inclusion

- Institutionalized patients for chronic treatment, with lack of autonomy and with inability to perform the clinical follow-up,

- Impossibility of telephone contact

- Patients with acute infection or inflammatory process (e.g. pneumonia) may be included in the study three months after the resolution of the infectious symptoms.

Study Design


Related Conditions & MeSH terms


Intervention

Dietary Supplement:
Mediterranean diet plus extra virgin olive oil
The patients in the intervention group will receive 1 liter of EVOO per week free of charge and dietary advice on how to follow a Mediterranean diet with contacts every two months. Dietary intervention will be carried out by nutritionists with previous experience in the PREDIMED study. All of them were registered, trained and certified for developing the PREDIMED intervention protocol that is similar to the one to be carried out in this study. The theoretical sessions with patients about dietary education shall be conducted in telephone form, using the internet and sending comprehensive written material to their homes that includes recipes, shopping lists, menus and explanations of typical food in the Mediterranean diet

Locations

Country Name City State
Spain Teresa Barrio Lopez Madrid
Spain Teresa Barrio López Madrid

Sponsors (4)

Lead Sponsor Collaborator
Fundación de investigación HM Hospital General Universitario de Alicante, University Hospital Virgen de las Nieves, University of Navarra

Country where clinical trial is conducted

Spain, 

References & Publications (2)

Estruch R, Ros E, Salas-Salvadó J, Covas MI, Corella D, Arós F, Gómez-Gracia E, Ruiz-Gutiérrez V, Fiol M, Lapetra J, Lamuela-Raventos RM, Serra-Majem L, Pintó X, Basora J, Muñoz MA, Sorlí JV, Martínez JA, Martínez-González MA; PREDIMED Study Investigators — View Citation

Martínez-González MÁ, Toledo E, Arós F, Fiol M, Corella D, Salas-Salvadó J, Ros E, Covas MI, Fernández-Crehuet J, Lapetra J, Muñoz MA, Fitó M, Serra-Majem L, Pintó X, Lamuela-Raventós RM, Sorlí JV, Babio N, Buil-Cosiales P, Ruiz-Gutierrez V, Estruch R, Al — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary atrial tachyarrhythmias documented by electrocardiogram or recorder device Atrial tachyarrhythmia is defined at any fast rate (>100 bpm) of supraventricular origin lasting more than 30 seconds and that is documented by ECG, Holter or event monitor. mean follow up of 2 years
Secondary Atrial fibrillation documented by electrocardiogram or recorder device AF is defined at any irregular atrial rhythm lasting more than 30 seconds and that is documented by ECG, Holter or event monitor. AF may or may not be symptomatic. mean follow up of 2 years
Secondary changes in Inflammatory markers in blood samples Prior to ablation blood samples will be collected for determination of inflammatory parameters in a subsample of the study (neutrophil to lymphocyte ratio, TNF-alpha, fibrinogen, IL-2, IL6, IL-8, C-reactive protein). At 3 and 12 months of follow-up the determination of these parameters will be repeated. 1 year follow up
Secondary Changes in quality of life measured by SF-36 questionnaire Change in quality of life during the follow up measured by SF-36 questionnaire mean follow up of 2 years
See also
  Status Clinical Trial Phase
Recruiting NCT05654272 - Development of CIRC Technologies
Completed NCT04571385 - A Study Evaluating the Efficacy and Safety of AP30663 for Cardioversion in Participants With Atrial Fibrillation (AF) Phase 2
Terminated NCT04115735 - His Bundle Recording From Subclavian Vein
Completed NCT05366803 - Women's Health Initiative Silent Atrial Fibrillation Recording Study N/A
Completed NCT02864758 - Benefit-Risk Of Arterial THrombotic prEvention With Rivaroxaban for Atrial Fibrillation in France
Recruiting NCT05442203 - Electrocardiogram-based Artificial Intelligence-assisted Detection of Heart Disease N/A
Completed NCT05599308 - Evaluation of Blood Pressure Monitor With AFib Screening Feature N/A
Completed NCT03790917 - Assessment of Adherence to New Oral anTicoagulants in Atrial Fibrillation patiEnts Within the Outpatient registrY
Enrolling by invitation NCT05890274 - Atrial Fibrillation (AF) and Electrocardiogram (EKG) Interpretation Project ECHO N/A
Recruiting NCT05316870 - Construction and Effect Evaluation of Anticoagulation Management Model in Atrial Fibrillation N/A
Recruiting NCT05266144 - Atrial Fibrillation Patients Treated With Catheter Ablation
Not yet recruiting NCT06023784 - The Impact of LBBAP vs RVP on the Incidence of New-onset Atrial Fibrillation in Patients With Atrioventricular Block N/A
Recruiting NCT05572814 - Transform: Teaching, Technology, and Teams N/A
Recruiting NCT04092985 - Smart Watch iECG for the Detection of Cardiac Arrhythmias
Completed NCT04087122 - Evaluate the Efficiency Impact of Conducting Active Temperature Management During Cardiac Cryoablation Procedures N/A
Completed NCT06283654 - Relieving the Emergency Department by Using a 1-lead ECG Device for Atrial Fibrillation Patients After Pulmonary Vein Isolation
Recruiting NCT05416086 - iCLAS™ Cryoablation System Post-Market Clinical Follow-up (PMCF) Study N/A
Completed NCT05067114 - Solutions for Atrial Fibrillation Edvocacy (SAFE)
Completed NCT04546763 - Study Watch AF Detection At Home
Completed NCT03761394 - Pulsewatch: Smartwatch Monitoring for Atrial Fibrillation After Stroke N/A