Low Versus High Dose Magnesium Sulfate in the Early Management of Rapid Atrial Fibrillation

NCT ID: NCT00965874

Last Updated: 2018-04-20

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

450 participants

Study Classification

INTERVENTIONAL

Study Start Date

2009-11-30

Study Completion Date

2014-08-31

Brief Summary

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Objective:

To assess the efficacy and the safety of high (9g) and low dose (4.5g) of MgS in the immediate treatment of rapid AF.

Detailed Description

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Introduction:

Atrial fibrillation (AF) is a potentially life-threatening cardiac arrhythmia and a frequent chief complaint in emergency departments (ED). It is an important concern for a substantial proportion of people worldwide. According to the Rotterdam study, the prevalence of AF among individuals aged between 55 to 59 years is estimated at 1.1 for 1000 persons/year and 20.7 for individuals between 80 and 84 years. Given current adult advanced cardiac life support (ACLS), the immediate clinical objective in rapid AF is to achieve ventricular rate control. Digoxin, beta blockers and calcium channel antagonists are the most widely used agents for the emergent treatment of rapid AF. However, their effect is limited because only half of the patients will acutely respond to the first intention treatment. Several studies showed that the magnesium sulfate (MgS) is beneficial in the control of the rate and the rhythm of AF. In addition, hypomagnesemia is present among patients having AF in 20 to 53% of the cases . The association of hypomagnesemia and AF is common after a cardiac surgery and the prophylactic administration of MgS could be useful in post-operative AF .

The last meta analysis published in 2007 showed that the MgS is as well efficient in rate control (OR = 1.96) as in rhythm control (OR = 1.60) of AF. However most studies included in this meta analysis were conducted on limited number of patients (303 patients included for rate control outcome analysis and 376 for rhythm control). Consequently we need further randomized controlled studies to establish definitively the efficacy and the safety of MgS in the early management of rapid AF.

Objective:

To assess the efficacy and the safety of high (9g) and low dose (4.5g) of MgS in the immediate treatment of rapid AF.

Conditions

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Atrial Fibrillation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Magnesium Sulfate high dose infusion

9 g Magnesium sulfate infusion over 30 minutes

Group Type EXPERIMENTAL

Magnesium Sulfate high dose

Intervention Type DRUG

9 g infusion once during 30 minutes

Magnesium Sulfate low dose infusion

4.5 magnesium sulfate infusion over 30 minutes

Group Type ACTIVE_COMPARATOR

Magnesium Sulfate low dose

Intervention Type DRUG

4.5 g magnesium sulfate infusion

placebo

serum salin

Group Type PLACEBO_COMPARATOR

Placebos

Intervention Type DRUG

serum salin

Interventions

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Magnesium Sulfate high dose

9 g infusion once during 30 minutes

Intervention Type DRUG

Magnesium Sulfate low dose

4.5 g magnesium sulfate infusion

Intervention Type DRUG

Placebos

serum salin

Intervention Type DRUG

Other Intervention Names

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Magnesium Sulfate Magnesium Sulfate

Eligibility Criteria

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Inclusion Criteria

* All patients presenting to ED with rapid AF (Heart rate \>120 bpm).

Exclusion Criteria

* Unstable hemodynamic state.
* Renal insufficiency (creatinemia\> 180 µmol/l).
* Allergy to MgS.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Monastir

OTHER

Sponsor Role lead

Responsible Party

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Pr. Semir Nouira

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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nouira semir, MD

Role: PRINCIPAL_INVESTIGATOR

University of Monastir

Locations

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University Hospital of Monastir

Monastir, Monstir, Tunisia

Site Status

Countries

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Tunisia

Other Identifiers

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LOMAGHI

Identifier Type: -

Identifier Source: org_study_id

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