Magnesium Supplementation for the Prevention of Supraventricular Arrhythmias

NCT ID: NCT02837328

Last Updated: 2019-11-01

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

59 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-03-01

Study Completion Date

2017-09-15

Brief Summary

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The primary objective of this research is to determine whether oral magnesium supplementation in healthy, community-living individuals will be associated with reductions in the burden of arrhythmias in the upper chambers of the heart (supraventricular arrhythmias).

Detailed Description

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To evaluate the primary objective, the Investigator will conduct a double-blind randomized trial assigning participants to receive 400 mg of oral magnesium in the form of magnesium citrate once daily or placebo. The investigators will recruit 60 individuals 55 years of age and older without a prior history of cardiovascular disease. At baseline, participants will undergo a basic examination, answer questionnaires and provide a blood sample to determine circulating magnesium levels. Participants will then wear an FDA-approved heart rhythm monitor (Zio ® XT Patch) for 2 weeks. At the end of 2 weeks they will begin taking their assigned treatment (magnesium or placebo), and will continue doing so for a total of 12 weeks (through study week 14). After 10 weeks of taking the supplement or placebo (study week 12), they will have a final study visit in which the participants will provide another blood sample for assessment of circulating magnesium, and will be asked to wear the heart rhythm monitor for another 2 weeks (through study week 14). The primary endpoint will be the change in burden of premature atrial contractions (PACs), measured in episodes per day, between baseline and final follow-up visit. A secondary outcome will be the change in circulating magnesium between both exams.

Conditions

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Premature Atrial Contraction

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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Oral Magnesium Supplement

400 mg Magnesium Citrate 1x daily for 12 weeks

Group Type EXPERIMENTAL

Oral Magnesium Supplement

Intervention Type DRUG

400 mg Magnesium Citrate 1x daily for 12 weeks

Placebo

Placebo pill resembling 400 mg Magnesium Citrate 1x daily for 12 weeks

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Placebo pill resembling 400 mg Magnesium Citrate 1x daily for 12 weeks

Interventions

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Oral Magnesium Supplement

400 mg Magnesium Citrate 1x daily for 12 weeks

Intervention Type DRUG

Placebo

Placebo pill resembling 400 mg Magnesium Citrate 1x daily for 12 weeks

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Age 55 and older
* Ability to speak English
* Availability to attend baseline and follow-up visit approximately 12 weeks after baseline

Exclusion Criteria

* Prior history of heart disease (coronary heart disease, heart failure, atrial fibrillation), stroke, severe renal disease
* Use of type I and III antiarrhythmics or digoxin
* Current use of magnesium supplements
* Any prior history of allergy or intolerance to magnesium
* Prior history of inflammatory bowel disease or any severe gastrointestinal disorder
Minimum Eligible Age

55 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Minnesota

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Pamela L Lutsey, PhD

Role: PRINCIPAL_INVESTIGATOR

University of Minnesota

Alvaro Alonso, MD PhD

Role: PRINCIPAL_INVESTIGATOR

University of Minnesota

Lin Y Chen, MD

Role: STUDY_CHAIR

University of Minnesota

Locations

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University of Minnesota - Twin Cities

Minneapolis, Minnesota, United States

Site Status

Countries

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United States

References

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Alonso A, Chen LY, Rudser KD, Norby FL, Rooney MR, Lutsey PL. Effect of Magnesium Supplementation on Circulating Biomarkers of Cardiovascular Disease. Nutrients. 2020 Jun 6;12(6):1697. doi: 10.3390/nu12061697.

Reference Type DERIVED
PMID: 32517192 (View on PubMed)

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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1605M87323

Identifier Type: -

Identifier Source: org_study_id

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