Magnesium Prophylaxis for the Prevention of New-Onset Atrial Fibrillation in Critically Ill Patients
Recruiting now Phase 4 NCT05829317
Run by Dr. Stephanie Sibley · for 18 and older · All sexes
What this study is about
A double-blind, multi-centre, randomized, placebo-controlled, feasibility pilot trial in the prevention of new onset atrial fibrillation of critically ill patients admitted to an ICU.
Who can join (things the study team will check)
✅ You may be able to join if…
- Age ≥18 years;
- Admitted to an ICU with one or more of the following:
- Non-invasive ventilation (including CPAP, Bipap and high flow oxygen (>10L/min) or invasive mechanical ventilation with an expected duration >24 hours for respiratory failure (hypercarbic or hypoxic)
- Vasopressor or inotropic support with an expected duration of >24 hours
- Cardiac arrest
- Continuous cardiac monitoring.
🚫 You may not be able to join if…
- Receiving ICU intervention (Non-invasive ventilation (including high flow nasal canula), invasive mechanical ventilation or inotropic support) for >18 hours
- Receiving IMV for airway protection only (for example, isolated head trauma)
- Active atrial fibrillation at the time of enrolment
- On oral or continuous infusion of Amiodarone
- Unlikely to survive >24 hours or palliative patients
- Cardiac surgery patients
- Patients requiring parenteral magnesium therapy (e.g. pre-eclampsia, asthma)
- Patients receiving dialysis
- Positive pregnancy test (females <50 years old)
- Previously enrolled in this trial
- Treating physician refuses enrollment
Where this trial is running
- St Joseph's Healthcare Hamilton, Hamilton, Ontario, Canada
- Kingston Health Sciences Centre, Kingston, Ontario, Canada
- The Ottawa Hospital - General Campus, Ottawa, Ontario, Canada
- The Ottawa Hospital - Civic Campus, Ottawa, Ontario, Canada
Who to contact
Miranda Hunt · 613 549 6666 · miranda.hunt@kingstonhsc.ca
It's completely normal to call and ask questions before deciding anything. Mention the study ID: NCT05829317.
Verify everything on the official ClinicalTrials.gov record. Page updated July 2026.
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