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CompletedNCT02108366Updated Oct 21, 2019

Treatment of Severe Influenza A Infection

A Phase 3 interventional study of Celecoxib and Oseltamivir in Influenza, Human, sponsored by The University of Hong Kong. Completed at 1 site in Hong Kong. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-10-21.

Sponsored by The University of Hong Kong · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
107
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Each year, influenza A infection caused great mortality and morbidity, especially among the elderly and individuals with chronic illness. Many of these patients are 'late presenters' who are admitted to hospital a few days after symptoms onset and have developed complications secondary to immunodysregulation. Antiviral treatment with the neuraminidase inhibitor is of limited usage for patients who presented to the hospital 48 hours after symptom onset. Apart from ventilatory and extracorporeal membrane oxygenation support, treatment options for these patients are limited. Recent animal study has demonstrated that combinations of an antiviral agent with a COX-II inhibitor can reduce mortality in mice infected with influenza virus. The investigators therefore propose to enrol patients with severe influenza A infection requiring hospitalization and oxygen support on a randomized controlled trial with celecoxib.

Read the detailed description

The aim of this double blind randomized controlled trial is to compare the clinical efficacy and safety of celecoxib combined with neuraminidase inhibitors in patients with severe influenza A infection. The hypothesis of this study is that treatment of severe influenza A infection with celecoxib will reduce mortality. The primary outcome to be assessed will be the 28-days mortality rate from hospitalization. The secondary outcomes to be assessed will be safety of the treatment, duration of intensive care, duration of ventilatory and oxygen support, the viral load and cytokine change.

02

Conditions studied

  • Influenza, Human

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Keywords

  • severe
  • influenza A
  • celecoxib
03

In context

Influenza, Human

2,214 studies on the registry are indexed under Influenza, Human; 164 are open to participants now.

This study's enrollment of 107 is below the median of 238 across 1,853 interventional studies indexed under Influenza, Human.

Browse Influenza, Human studies →

Lead sponsor

The University of Hong Kong is the lead sponsor of 1,262 studies on the registry; 340 are open to participants now.

Of its 8 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

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
No

Inclusion criteria

  1. Male or female patients ≥18 years 2) Written informed consent by patient or next-of kin (if patient is too ill to consent) 3) Presumptive diagnosis of influenza A satisfying both clinical and laboratory criteria. The laboratory criteria are defined as at least one RT-PCR positive for influenza A (H1N1, H3N2, H5N1 and H7N9) from respiratory clinical specimens including nasopharyngeal samples and endotracheal aspirates. The clinical criteria are defined as hospitalization with fever or one of the symptoms suggestive of influenza infection including sore throat, rhinorrhea, cough or shortness of breath 2) Desaturation to \<90% in room air by pulse oximetry and required oxygen supplement 3) Within 7 days of onset of symptoms. Patients have to fulfil all the aforementioned criteria.

Exclusion criteria

Exclusion Criteria:

  1. Age \<18 years. 2) A known hypersensitivity to celecoxib, oseltamivir or zanamivir 3) Unable to obtain informed consents 4) Influenza A infection diagnosed beyond 7 days from symptom onset 5) Patients receiving other antiviral treatment (apart from oseltamivir or zanamivir), N-acetylcystiene, statins and tradition Chinese medicine during the current admission 6) Patients with renal impairment of creatinine clearance \< 30mL/min
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
107 participants (actual)

Study arms

  • Placebo comparator
    Placebo

    Placebo + oseltamivir 75mg bid for 5 days

    Drug: Oseltamivir · Drug: Placebo

  • Experimental
    Celecoxib

    Celecoxib 200mg daily + oseltamivir 75mg bid for 5 days

    Drug: Celecoxib · Drug: Oseltamivir

Interventions

  • DrugCelecoxib

    Celecoxib 200mg daily

    Also known as: COX II inhibitor

  • DrugOseltamivir

    Oseltamivir 75mg bid

    Also known as: Tamiflu

  • DrugPlacebo

    Placebo capsule identical in appearance to celecoxib capsule, containing corn starch

    Also known as: Corn starch

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What researchers measure

Primary outcomes

  1. Mortality rate

    28 days mortality from hospitalization

    Time frame: 28 days

Secondary outcomes

  1. Viral load

    1 day before treatment for 1 week

    Time frame: 7 days

  2. Cytokine

    1 day before treatment for 7 days

    Time frame: 7 days

  3. Intensive care stay

    Period under intensive care

    Time frame: An expected average of 2 weeks

  4. Ventilatory support period

    Duration of patient on ventilatory support

    Time frame: An expected average of 2 weeks

  5. Systemic adverse events

    from commencement of treatment for 1 week

    Time frame: 1 week

  6. Hospitalization

    from hospital admission to discharge

    Time frame: An expected average of 4 weeks

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Study locations

1 site
  • Ivan Hung
    Hong Kong, Hong Kong
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 21, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02108366
Lead sponsor
The University of Hong Kong
Responsible party
Dr Ivan FN Hung (Clinical Associate Professor, The University of Hong Kong) — Principal investigator
First posted
Apr 9, 2014
Start date
Mar 2014
Primary completion
Mar 2018
Completion
Jun 2018
Last update
Oct 21, 2019

Study contacts

Ivan FN HUNG, MD FRCP
principal investigator · The University of Hong Kong

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2019. You cannot join it, but the record below documents what was studied.

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