Effect of Montelukast in Preventing Dengue With Warning Signs in Dengue Patients
Study Details
Study Description
Brief Summary
This study aims to determine the efficacy of montelukast in reducing the incidence of dengue warning signs in adult dengue patients.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
|
Phase 2/Phase 3 |
Detailed Description
Dengue has been the growing public health problem in many tropical countries. Almost 4 billion people were estimated to be at risk, with estimated 400 million infections occurring annually. In Asia, around 10% of febrile patients were virologically confirmed with dengue. The most common cause of death is from dengue shock as a result of vascular leak syndrome. This condition can occur in various clinical manifestations ranging from mild cases to life-threatening condition of dengue shock syndrome. The common sites of plasma leakage are pleural effusion and ascites. The contributing factors for endothelial dysfunction in dengue are cytokines such as soluble tumor necrosis factor receptor (sTNFR/75), interferon gamma, and vascular endothelial growth factor, NS1 antigenemia, complement activation, and activation of dendritic cells, macrophages, and mast cells.
Mast cells have recently been acknowledged as an important regulator for promoting innate immune responses. Important composition of granules in mast cells are proteases, chymase and tryptase, histamine, heparin and leukotriene. The activated mast cells can undergo degranulation, releasing these cytokines. These increase capillary permeability, leading to vascular leakage.
Leukotriene has an important role in promoting plasma leakage and leukocyte adhesion in postcapillary venules. In dengue patients, leukotriene levels usually elevate during febrile and defervescence stage for 35 and 38 times of the baseline values, and return to baseline in convalescence stage. Blocking leukotriene in dengue infected mice can significantly reduce plasma leakage.
The management of dengue consists of only symptomatic treatment, and intravenous fluid replacement. No specific treatment has yet been demonstrated of a benefit in preventing complications. In the recent decades, mast cells have been demonstrated as a major contributor of severe forms of dengue, leading to research in reduction of vascular permeability with mast cell stabilizers or anti-histamine drugs. An animal model studies found that a tryptase inhibitor, nafamostat, or leukotriene inhibitor, montelukast, could reduce the plasma leakage.
In 2018, an open-label study found that patients with montelukast had a 22% absolute risk reduction in dengue shock syndrome, compared to standard treatment. However, there has never been any randomized controlled trial evaluating the efficacy of montelukast in dengue patients.
This study aims to determine the efficacy of montelukast in reducing the incidence of dengue warning signs in adult dengue patients.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Experimental: Montelukast a 10 mg tablet will be given orally immediately and every day thereafter for 10 days or until recovery, defined as the discontinuation of the follow up appointment by the attending physicians, whichever is shorter |
Drug: Montelukast
A 10-mg tablet will be given orally immediately and every day thereafter for 10 days or until recovery, defined as the discontinuation of the follow up appointment by the attending physicians, whichever is shorter
|
| Placebo Comparator: Placebo a 10 mg tablet will be given orally immediately and every day thereafter for 10 days or until recovery, defined as the discontinuation of the follow up appointment by the attending physicians, whichever is shorter |
Drug: Placebo
A 10-mg tablet will be given orally immediately and every day thereafter for 10 days or until recovery, defined as the discontinuation of the follow up appointment by the attending physicians, whichever is shorter
|
Outcome Measures
Primary Outcome Measures
- Rate of dengue with warning signs [14 days or until the discontinuation of the follow up appointment by the attending physicians, whichever is shorter.]
Rate of a composite outcome including abdominal tenderness or pain persistent vomiting clinical fluid accumulation mucosal bleeding liver enlargement >2cm increase in hematocrit concurrent with decrease in platelet count However, lethargy will be excluded as a criterion for warning sign as almost all patients reported subjective lethargy.
Secondary Outcome Measures
- Rate of each component of composite outcome of dengue with warning signs [14 days or until the discontinuation of the follow up appointment by the attending physicians, whichever is shorter]
Rate of each component of composite outcome of dengue with warning signs abdominal tenderness or pain persistent vomiting clinical fluid accumulation mucosal bleeding liver enlargement >2cm increase in hematocrit concurrent with decrease in platelet count
- Rate of hospitalization [14 days or until the discontinuation of the follow up appointment by the attending physicians, whichever is shorter]
Rate of admission to hospital
- Length of hospital stay [up to 90 days]
Length of hospital stay
- Rate of severe dengue [14 days or until the discontinuation of the follow up appointment by the attending physicians, whichever is shorter]
Rate of a composite outcome including shock fluid accumulation with respiratory distress severe bleeding leading to hypotension or decreased hematocrit liver transaminase >1000 impaired consciousness heart and other organ failure
- Rate of dengue shock [14 days or until the discontinuation of the follow up appointment by the attending physicians, whichever is shorter]
Rate of hypotension or the pulse pressure of ≤ 20 mm Hg
- 30-day mortality [30 days]
death with in 30 days
Eligibility Criteria
Criteria
Inclusion Criteria:
-
at least 18 years old
-
diagnosis of dengue
-
positive NS1 antigen or polymerase chain reaction (PCR) test
Exclusion Criteria:
-
any warning sign of dengue
-
concurrent diagnosis of other causes of fever, such as malaria or heat stroke
-
pregnancy
-
being unable to take medication by mouth
-
critical illness needing intubation or admission to an intensive care unit
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being unable to communicate
-
other indication of montelukast
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Hatyai Hospital | Hat Yai | Songkhla | Thailand | |
| 2 | Phramongkutklao Hospital | Bangkok | Thailand | 10400 | |
| 3 | Ananda Mahidol Hospital | Lopburi | Thailand | 15000 | |
| 4 | Fort Suranari Hospital | Nakhon Ratchasima | Thailand | 30000 |
Sponsors and Collaborators
- Phramongkutklao College of Medicine and Hospital
Investigators
- Principal Investigator: Worapong Nasomsong, MD, Phramongkutklao College of Medicine and Hospital
- Principal Investigator: Worayon Chuerboonchai, MD, Ananda Mahidol Hospital
Study Documents (Full-Text)
None provided.More Information
Additional Information:
Publications
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