Dietary polyunsaturated fatty acid in Heart Diseases and Arrhythmia and Ventricular Fibrillation - Clinical Trials Registry

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Behavioral: dietary polyunsaturated fatty acid

Detailed Description

BACKGROUND:

Sudden death is a common manifestation of ischemic heart disease and therefore of great public health concern. Unfortunately several promising antiarrhythmic drugs proved not to be effective in preventing sudden deaths. This project would test whether a relatively inexpensive and presumably innocuous therapy, fish oil supplements, can prevent life-threatening arrhythmias. There is ample basic evidence that n-3 fatty acids contained in fish oil supplements may suppress arrhythmias, and a clinical trial seems warranted.

DESIGN NARRATIVE:

Prospective, randomized, placebo-controlled, double-blind. Patients were randomized to 4 grams per day of a PUFA fish oil supplement versus an olive oil placebo. The number of therapeutic discharges were recorded from the ICDs and then confirmed from the recorded electrocardiogram strips with the kinds of arrhythmias which had induced the ICD response. The primary end point, time to first ICD event for ventricular tachycardia or fibrillation (VT or VF) confirmed by stored electrograms or death from any cause, was analyzed by intention to treat.

The study completion date listed in this record was obtained from the "End Date" entered in the Protocol Registration and Results System (PRS) record.

Study Type

Interventional

Phase

Phase 3

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

No eligibility criteria

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Primary Purpose: Prevention
Allocation: Randomized
Masking: Double

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

National Heart, Lung, and Blood Institute (NHLBI)

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Leaf A, Albert CM, Josephson M, Steinhaus D, Kluger J, Kang JX, Cox B, Zhang H, Schoenfeld D; Fatty Acid Antiarrhythmia Trial Investigators. Prevention of fatal arrhythmias in high-risk subjects by fish oil n-3 fatty acid intake. Circulation. 2005 Nov 1;112(18):2762-8. doi: 10.1161/CIRCULATIONAHA.105.549527.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

March 1, 1999

Study Completion (Actual)

February 1, 2002

Study Registration Dates

First Submitted

February 9, 2000

First Submitted That Met QC Criteria