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Routine Magnesium Testing and Supplementation in Acute Heart Failure (MAG-HF) (MAG-HF)

4. November 2026 aktualisiert von: University of Alberta

Routine Magnesium Testing and Supplementation in Acute Heart Failure (MAG-HF): a Pragmatic Randomized Controlled Trial

This study is an investigator-initiated, pragmatic, randomized controlled feasibility trial evaluating two strategies for magnesium management in adults hospitalized with acute heart failure (AHF). Participants will be randomized to either a strategy of no routine magnesium testing or intravenous (IV) supplementation, or a strategy of routine magnesium testing with IV supplementation according to standard of care.

The primary objective is to determine the feasibility of conducting a definitive, multi-centre trial by assessing recruitment, consent, intervention adherence, and completeness of follow-up over a 30-day period. We plan to recruit 260 participants across two centres over approximately 24 months.

In addition to feasibility outcomes, clinical event rates will be evaluated to inform the design of a future definitive trial. These include all-cause death, all-cause hospital readmission, and heart failure readmission within 30 days of randomization, capturing events both during the index hospitalization and after discharge. In-hospital outcomes will include arrhythmia, symptomatic hypotension, serious adverse events, intensive care unit admission, and length of stay. Health-related quality of life will be assessed using the Kansas City Cardiomyopathy Questionnaire (KCCQ) at protocol-defined timepoints.

This trial is conducted within the HEART platform, a master protocol designed to evaluate multiple interventions in heart failure using a shared infrastructure.

Studienübersicht

Status

Noch keine Rekrutierung

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

Acute heart failure (AHF) is a common cause of hospitalization and is associated with high rates of morbidity and rehospitalization. Magnesium abnormalities are frequently observed in hospitalized patients, and intravenous magnesium supplementation is commonly used in clinical practice despite limited evidence supporting routine testing and replacement strategies in this population. Variation in practice patterns exists, and the clinical impact of routine magnesium testing and supplementation in AHF remains uncertain.

The MAG-HF trial is an investigator-initiated, pragmatic, randomized controlled feasibility trial designed to evaluate the feasibility of conducting a definitive multi-centre trial comparing two strategies for magnesium management in adults hospitalized with AHF. Participants will be randomized to either a strategy of no routine magnesium testing or intravenous (IV) supplementation, or to a strategy of routine magnesium testing with IV supplementation according to standard of care. The study is conducted within the HEART platform, which provides a shared infrastructure to evaluate multiple interventions in heart failure.

The primary objective is to assess feasibility, including recruitment rates, consent rates, intervention adherence, and completeness of follow-up over 30 days. The study will enroll 260 participants across two centres over approximately 24 months.

In addition to feasibility outcomes, the trial will evaluate clinical event rates to inform the design of a future definitive study. Clinical outcomes assessed within 30 days of randomization will include all-cause death, all-cause hospital readmission, and heart failure readmission, capturing events both during the index hospitalization and after discharge. In-hospital outcomes during the index admission will include clinically significant arrhythmias, symptomatic hypotension, serious adverse events, intensive care unit admission, and length of hospital stay. Health-related quality of life will be assessed using the Kansas City Cardiomyopathy Questionnaire (KCCQ) at protocol-defined timepoints.

This feasibility trial is not powered to assess treatment effectiveness. Instead, the results will be used to inform the design, sample size, and operational considerations of a future definitive randomized controlled trial evaluating magnesium management strategies in AHF.

Studientyp

Interventionell

Einschreibung (Geschätzt)

260

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

  • Name: Justin Ezekowitz, MD
  • Telefonnummer: 780-492-0712
  • E-Mail: jae2@ualberta.ca

Studieren Sie die Kontaktsicherung

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

18 Jahre und älter (Erwachsene, Älterer Erwachsener)

Akzeptiert gesunde Freiwillige

Nein

Studienberechtigte Geschlechter

Alle

Beschreibung

Inclusion Criteria:

  • Adults aged ≥ 18 years admitted to hospital with a clinical diagnosis of suspected or confirmed AHF and with an elevated serum natriuretic peptide level on presentation will be eligible.
  • Elevated natriuretic peptide levels are defined as a B-type natriuretic peptide (BNP) level of 400 pg/ml or higher; or a N-terminal pro-B-type natriuretic peptide (NT-proBNP) level of 1000 pg/mL or higher.

Exclusion Criteria:

  • Adults with an admission diagnosis other than AHF, presence of a pre-specified indication for magnesium supplementation on presentation (specified below), or having other medical conditions which, in the investigator's judgement, would make participation unsafe will be ineligible.
  • Torsades de pointes
  • Severe (< 3.0) or recurrent hypokalemia (< 3.5 x 2+ readings)
  • Pre-eclampsia or eclampsia
  • Severe asthma exacerbations
  • Hypomagnesemia (< 0.70 mmol/L) within seven days of randomization. (Clarification Magnesium testing is not required to confirm hypomagnesemia).
  • Concurrent enrolment will not automatically exclude a participant. Co-enrolment will be permitted only where allowed by both domain protocols and where the interventions and operational requirements are judged compatible. No washout is required after completion of a non-conflicting domain intervention.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Sonstiges
  • Zuteilung: Zufällig
  • Interventionsmodell: Sequenzielle Zuweisung
  • Maskierung: Keine (Offenes Etikett)

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: No Routine Magnesium Testing or Supplementation

Participants assigned to a strategy of no routine magnesium testing and no routine intravenous magnesium supplementation during the index hospitalization

A strategy in which no routine serum magnesium testing is performed and no routine intravenous magnesium supplementation is administered during the index hospitalization.

Experimental: Routine Magnesium Testing and Supplementation

Participants assigned to a strategy of routine magnesium testing with intravenous magnesium supplementation administered according to standard of care.

A strategy in which serum magnesium is measured and intravenous magnesium supplementation is administered according to standard of care during the index hospitalization.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Feasibility of trial conduct
Zeitfenster: Up to 30 days

Feasibility will be assessed by recruitment rate, consent rate, intervention fidelity, and completeness of follow-up and outcome ascertainment at 30 days.

Up to 30 days

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Recruitment Rate
Zeitfenster: Up to 24 months (recruitment period)

Number of participants enrolled per site per month.

Up to 24 months (recruitment period)
Consent Rate
Zeitfenster: Up to 30 days

Proportion of eligible patients who provide consent.

Up to 30 days
Intervention Fidelity
Zeitfenster: During index hospitalization

Adherence to assigned strategy and separation between randomized groups.

During index hospitalization
Completeness of Follow-up
Zeitfenster: Up to 30 days

Proportion of participants with complete follow-up and outcome ascertainment.

Up to 30 days

Andere Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
All-Cause Mortality
Zeitfenster: Up to 30 days

All-cause death following randomization.

Up to 30 days
All-Cause Hospital Readmission
Zeitfenster: Up to 30 days

Hospital readmission for any cause following discharge from the index hospitalization.

Up to 30 days
Heart Failure Readmission
Zeitfenster: Up to 30 days

Hospital readmission due to heart failure following discharge from the index hospitalization.

Up to 30 days
Clinically Significant Arrhythmia
Zeitfenster: Up to 30 days

Incident new or worsened clinically significant supraventricular or ventricular arrhythmia during the index hospitalization.

Up to 30 days
Symptomatic Hypotension
Zeitfenster: During index hospitalization

Occurrence of symptomatic hypotension during the index hospitalization.

During index hospitalization
Serious Adverse Events (SAEs)
Zeitfenster: Up to 30 days

Serious adverse events occurring during the index hospitalization.

Up to 30 days
Intensive Care Unit (ICU) Admission
Zeitfenster: Up to 30 days

Admission to the intensive care unit during the index hospitalization.

Up to 30 days
Length of Hospital Stay
Zeitfenster: Up to 30 days

Duration of the index hospitalization in days.

Up to 30 days
Change in Kansas City Cardiomyopathy Questionnaire Total Symptom Score (KCCQ-TSS)
Zeitfenster: Up to 30 days

Change in Kansas City Cardiomyopathy Questionnaire (KCCQ) Total Symptom Score from baseline to Day 5 comparing treatment groups. The Kansas City Cardiomyopathy Questionnaire Total Symptom Score (KCCQ-TSS) ranges from 0 to 100, where higher scores indicate fewer heart failure symptoms and better health status, and lower scores indicate more severe symptoms and worse health status.

Up to 30 days

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Ermittler

  • Hauptermittler: Arnav Agarwal, MD, University of Alberta

Publikationen und hilfreiche Links

Die Bereitstellung dieser Publikationen erfolgt freiwillig durch die für die Eingabe von Informationen über die Studie verantwortliche Person. Diese können sich auf alles beziehen, was mit dem Studium zu tun hat.

Nützliche Links

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Geschätzt)

1. November 2026

Primärer Abschluss (Geschätzt)

1. November 2028

Studienabschluss (Geschätzt)

1. Mai 2029

Studienanmeldedaten

Zuerst eingereicht

8. September 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

24. Oktober 2026

Zuerst gepostet (Tatsächlich)

30. Oktober 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

9. November 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

4. November 2026

Zuletzt verifiziert

1. November 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Andere Studien-ID-Nummern

  • MAG-01

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

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