ClinicalTrials.gg
Not yet recruitingNCT07795970HIMAG-ED-STATUpdated Aug 31, 2026

Efficacy of High-Dose Continuous Intravenous Magnesium Sulfate Infusion vs Standard Intravenous Magnesium Sulfate Therapy in Status Asthmaticus in the ED

An interventional study of ้High-dose Magnesium sulphate and standard-dose Magnesium Sulfate in Asthma Exacerbation, Emergency Department and Magnesuim Sulfate, sponsored by Thammasat University. Not yet recruiting. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-08-31.

Primary conditionnone(registry's first term: Emergencies)No conditionIs this wrong?Emergencies describes something many studies share rather than a condition a study is about. The study names no condition we can place it under, so it is not compared with other studies by condition.

Sponsored by Thammasat University · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
72
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The goal of this clinical is to compare treatment outcomes between high dose continuous IV Magnesium and standard therapy in the management of acute exacerbation of asthma in the emergency department. Participants will random assign to either high dose continuous IV drip or standard infusion. Participants in the intervention group received high-dose 50% magnesium sulfate (MgSO4), consisting of 2 g + normal saline (NSS) 100 ml administered intravenously over 30 minutes, followed by MgSO4 6 g + NSS 350 ml infused over 3.5 hours (approximately 40-50 mg/kg/h). In contrast, participants in the control group received standard-dose 50% MgSO4, consisting of 2 g + NSS 100 ml administered intravenously over 30 minutes, followed by a NSS 350 ml infusion over 3.5 hours. Measurements include symptom severity, respiratory rate, oxygen saturation, and pulmonary function tests. Primary endpoints are ED stay length, hospital admission, and ED revisit within 48 hours post-discharge. Adverse events are documented.

02

Conditions studied

  • Asthma Exacerbation
  • Emergency Department
  • Magnesuim Sulfate
  • High Dose

Browse trials for

Keywords

  • asthma exacerbation
  • magnesium sulfate
  • emergency department
03

In context

Lead sponsor

Thammasat University is the lead sponsor of 85 studies on the registry; 16 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Adults aged ≥18 years with a known diagnosis of asthma, and
  • Presence of signs and symptoms consistent with acute asthma exacerbation, including dyspnea, tachypnea, respiratory distress, chest tightness, cough, or wheezing, and
  • Indication for administration of intravenous magnesium sulfate (MgSO4)

Exclusion criteria

Exclusion Criteria:

  • Patients requiring endotracheal intubation at the time of initial presentation
  • Hypermagnesemia (more than 2.5 mg/dL)
  • Known to magnesium sulfate
  • Diagnosed or suspected myasthenia gravis or neuromuscular disease
  • Suspected infection meeting the criteria for patients under investigation (PUI) for coronavirus disease 2019 (COVID-19)
  • Suspected or confirmed pulmonary tuberculosis
  • inability to perform pulmonary function testing (spirometry or peak expiratory flow)
  • known case chronic kidney disease ( \<30 mL/min/1.73 m²), heart block, pregnancy
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
72 participants (estimated)

Study arms

  • Experimental
    High dose MgSO4 Continuous IV drip

    Participants in the intervention group received high-dose 50% magnesium sulfate (MgSO₄), consisting of 2 g diluted in 100 mL normal saline (NSS) administered intravenously over 30 minutes, followed by MgSO₄ 6 g diluted with NSS up to a total volume of 350 mL infused intravenously over 3.5 hours (approximately 40-50 mg/kg/h).

    Drug: ้High-dose Magnesium sulphate · Drug: standard-dose Magnesium Sulfate

  • Active comparator
    standard-dose MgSO4 Continuous IV drip

    Participants in the control group received standard-dose 50% MgSO₄, consisting of 2 g diluted in 100 mL NSS administered intravenously over 30 minutes, followed by 350 mL NSS infused over 3.5 hours

    Drug: ้High-dose Magnesium sulphate · Drug: standard-dose Magnesium Sulfate

Interventions

  • Drug้High-dose Magnesium sulphate

    Participants in the intervention group received high-dose 50% magnesium sulfate (MgSO₄), consisting of 2 g diluted in 100 mL normal saline (NSS) administered intravenously over 30 minutes, followed by MgSO₄ 6 g diluted with NSS up to a total volume of 350 mL infused intravenously over 3.5 hours (approximately 40-50 mg/kg/h).

  • Participants in the control group received standard-dose 50% MgSO₄, consisting of 2 g diluted in 100 mL NSS administered intravenously over 30 minutes, followed by 350 mL NSS infused over 3.5 hours

06

What researchers measure

Primary outcomes

  1. Length of ED stay (hours)

    Length of ED stay was defined as the time from administration of the first nebulized treatment to the time of physician-ordered disposition from the emergency department.

    Time frame: through study completion, an average of 1 year

Secondary outcomes

  1. Hospital admission rate (%)

    Hospital admission rate (%) was defined as admission to an inpatient ward or intensive care unit directly from emergency department following the index visit.

    Time frame: through study completion, an average of 1 year

07

Study locations

No study locations are listed for this record.

08

References and documents

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Start is estimated for Nov 2026; primary completion for Nov 2027, 12 months later.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 24, 2026
First posted
Aug 31, 2026
StartEst.
Nov 1, 2026
Primary completionEst.
Nov 1, 2027
CompletionEst.
Apr 30, 2028
Last update
Aug 31, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 31, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07795970
Lead sponsor
Thammasat University
Responsible party
Kumpol Kornthatchapong (Associated Professor, Thammasat University) — Principal investigator
First posted
Aug 31, 2026
Start date
Nov 1, 2026 (estimated)
Primary completion
Nov 1, 2027 (estimated)
Completion
Apr 30, 2028 (estimated)
Last update
Aug 31, 2026

Study contacts

Kumpol Kornthatchapong, Associated Professor, MD.Ph.D.
Contact
kump29@gmail.com
+6629269316
Department of Emergency Medicine Faculty of Medicine
Contact
kump29@gmail.com
+6629269316

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Studies of the drug tested here: Magnesium Sulfate

Start the discussion