Can magnesium tame a racing heart? new trial investigates
NCT ID NCT06376916
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether giving magnesium through an IV can safely slow a rapid heart rate in people with atrial fibrillation or flutter. Researchers will compare two different doses of magnesium to a placebo. The goal is to see if magnesium helps control heart rate within the first two hours, reducing the need for other medications.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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About 153 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Oct 2024
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Age \> 18 years or older * Able to provide informed consent * Primary diagnosis AFF RVR greater than or equal to 120 bpm * Diltiazem as rate control agent * English speaking Exclusion Criteria: * Hemodynamically unstable patients (SBP \<90, MAP \<65) * Impaired consciousness * End stage renal disease on hemodialysis or peritoneal dialysis * Acute heart failure exacerbation based on clinical diagnosis, physician exam, bedside echo, and/or additional imaging * Patient in AFF RVR that is highly suspected to be a compensatory mechanism for an alternative clinical diagnosis * Rhythms other than AF, such as sick sinus syndrome or wide-complex ventricular response * Acute myocardial infarction * Pregnancy defined as a positive urine HCG (human chorionic gonadotropin) * Contraindications to magnesium sulfate (including myasthenia gravis) * Allergy or sensitivity to any study drugs * Previously enrolled in this trial during a different patient encounter * Withdrew from study
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Advocate Christ Medical Center Emergency Department (ACMC ED)
RECRUITINGOak Lawn, Illinois, 60453, United States
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