Asthma ExacerbationHIMAG-ED-STATNCT07795970
Efficacy of High-Dose Continuous Intravenous Magnesium Sulfate Infusion vs Standard Intravenous Magnesium Sulfate Therapy in Status Asthmaticus in the ED
A study testing ้High-dose Magnesium sulphate and standard-dose Magnesium Sulfate in people with Asthma Exacerbation and Emergency Department, run by Thammasat University.
Trial 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. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Asthma Exacerbation, Emergency Department, Magnesuim Sulfate
- What is being tested?
- ้High-dose Magnesium sulphate and standard-dose Magnesium Sulfate
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 72 participants
- Where
- No sites listed yet
- Study dates
- 1 Nov 2026to 30 Apr 2028
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- 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)
Who cannot join
- Patients requiring endotracheal intubation at the time of initial presentation
- Hypermagnesemia (more than 2.5 mg/dL)
- Known hypersensitivity 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 (eGFR <30 mL/min/1.73 m²), heart block, pregnancy
Trial locations and contacts
No sites are listed yet. Contact the study team or a site near you to ask about taking part.
About this study
Official title: Efficacy of High-Dose Continuous Intravenous Magnesium Sulfate Infusion Compared With Standard Intravenous Magnesium Sulfate Therapy in Patients With Status Asthmaticus in the Emergency Department
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.
- Being tested
- ้High-dose Magnesium sulphate, standard-dose Magnesium Sulfate
- Keywords
- asthma exacerbation, magnesium sulfate, emergency department
- Medical subject headings
- Emergencies
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
้High-dose Magnesium sulphateDrug
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).
standard-dose Magnesium SulfateDrug
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
| Study group | Role | What they receive |
|---|---|---|
| High dose MgSO4 Continuous IV drip | Experimental | 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). Receives: Drug: ้High-dose Magnesium sulphate; Drug: standard-dose Magnesium Sulfate |
| standard-dose MgSO4 Continuous IV drip | Active comparator | 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 Receives: Drug: ้High-dose Magnesium sulphate; Drug: standard-dose Magnesium Sulfate |
What is being measured
The primary outcome is the main question the study is designed to answer.
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.
Measured: 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.
Measured: through study completion, an average of 1 year
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted31 Aug 2026
- Study start1 Nov 2026 (estimated)
- Primary completion1 Nov 2027 (estimated)
- Study completion30 Apr 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Asthma ExacerbationStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- randomized controlled trial - RCT
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 72 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Thammasat University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Kumpol Kornthatchapong, Thammasat University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07795970
- Sponsor's protocol ID
- MTU-EC-EM-0-176/69
- Other IDs
- pending
- Acronym
- HIMAG-ED-STAT
- Status last verified
- Aug 2026
- First submitted
- 24 Aug 2026
- Last updated
- 31 Aug 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 31 Aug 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Efficacy of High-Dose Continuous Intravenous Magnesium Sulfate Infusion Compared With Standard Intravenous Magnesium Sulfate Therapy in Patients With Status Asthmaticus in the Emergency Department
- ClinicalTrials.gov ID
- NCT07795970
- Acronym / sponsor ID
- HIMAG-ED-STAT / MTU-EC-EM-0-176/69
- Keywords
- asthma exacerbation, magnesium sulfate, emergency department
- Study type
- Interventional
- Recruitment status
- Not yet recruiting
- Enrolment
- 72 participants (estimated)
- Lead sponsor
- Thammasat UniversityUniversity, hospital or other
- Study start
- 1 Nov 2026 (estimated)
- Primary completion
- 1 Nov 2027 (estimated)
- Study completion
- 30 Apr 2028 (estimated)
- First posted
- 31 Aug 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
- Model description
- randomized controlled trial - RCT
| Arm | Type | Receives |
|---|---|---|
| High dose MgSO4 Continuous IV drip | Experimental | Drug: ้High-dose Magnesium sulphate, Drug: standard-dose Magnesium SulfateParticipants 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). |
| standard-dose MgSO4 Continuous IV drip | Active comparator | Drug: ้High-dose Magnesium sulphate, Drug: standard-dose Magnesium SulfateParticipants 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 |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- 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)
Key exclusion criteria (8 listed)
- Patients requiring endotracheal intubation at the time of initial presentation
- Hypermagnesemia (more than 2.5 mg/dL)
- Known hypersensitivity 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)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| ้High-dose Magnesium sulphateParticipants 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 MgSO4 Continuous IV drip, standard-dose MgSO4 Continuous IV drip |
| standard-dose Magnesium SulfateParticipants 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 MgSO4 Continuous IV drip, standard-dose MgSO4 Continuous IV drip |
Primary outcome
Length of ED stay (hours)
Time frame: through study completion, an average of 1 year
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.
1 secondary outcome
Hospital admission rate (%)
Time frame: through study completion, an average of 1 year
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 31 Aug 2026.
- Characteristics and outcomes of treatment in status asthmaticus patients at emergency departmentLink provided by the sponsor.
- . Role of Intravenous Magnesium in the Management of Moderate to Severe Exacerbation of Asthma: A Literature ReviewLink provided by the sponsor.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Questions about this trial
What is this clinical trial studying?
A study testing ้High-dose Magnesium sulphate and standard-dose Magnesium Sulfate in people with Asthma Exacerbation and Emergency Department, run by Thammasat University.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: opening soon, as of the sponsor's last update on 31 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Kumpol Kornthatchapong, Associated Professor, MD.Ph.D. (+6629269316, kump29@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Length of ED stay (hours) (time frame: through study completion, an average of 1 year). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 31 Aug 2026.