Overview
Sponsor-declared trial summary
patients with influenza-induced acute hypoxemic respiratory failure
To compare the efficacy of dexamethasone versus placebo in patients with severe influenza on a hierarchical composite endpoint of all-cause mortality, number of ventilator-free days and number of ICU-free days between day 0 and day 28.
Key facts
- Sponsor
- Centre Hospital Region Metz Thionville
- Participant type
- Patients
- Age range
- 18-64 years, 65+ years
- Gender
- Male and Female
- Therapeutic area
- Diseases [C] - Respiratory Tract Diseases [C08]
- Decision date (initial)
- 2026-06-23
- Transition trial
- No
- Low-intervention
- Yes
- Rare-disease indication
- No
- Vulnerable population
- Yes
Trial design
CTIS Part I — objectives, methods, condition coding
Main objective
Scope: Efficacy, Therapy, Safety
To compare the efficacy of dexamethasone versus placebo in patients with severe influenza on a hierarchical composite endpoint of all-cause mortality, number of ventilator-free days and number of ICU-free days between day 0 and day 28.
Secondary objectives 9
- comparison between the two study groups of in-hospital death at day 28
- comparison between the two study groups of organ dysfunction at day 28
- comparison between the two study groups of days alive without life support at day 28
- comparison between the two study groups of the duration of supplemental oxygen, non-invasive ventilation, high flow oxygen at day 28
- comparison between the two study groups of the length of stay in hospital and ICU
- comparison between the two study groups of viral clearance
- comparison between the two study groups of quality of life at day 90
- comparison between the two study groups of 90-day mortality
- comparison between the two study groups of safety endpoint: occurrence of adverse events between day 0 and day 28
Conditions and MedDRA coding
patients with influenza-induced acute hypoxemic respiratory failure
Eligibility criteria
Principal inclusion / exclusion criteria as submitted by sponsor
Inclusion criteria 7
- Age ≥ 18 years
- Admission to ICU or intermediate care for less than 2 days
- Admission to hospital for less than 5 days
- Diagnosis of influenza pneumonia with • PCR positive for Influenza dated less than 5 days • AND focal shadowing/infiltrates on chest X-ray or CT-scan • AND at least one of the following: cough, purulent sputum, chest pain or dyspnoea
- Requirement of supplemental oxygen at a flow rate of at least 3 L/min OR non-invasive ventilation OR high flow oxygen therapy OR invasive mechanical ventilation.
- Written informed or emergency consent
- Ongoing medical insurance
Exclusion criteria 15
- Moribund state
- Bone marrow transplant or chemotherapy-induced neutropenia
- Known allergy to dexamethasone or to one of its excipients
- Uncontrolled psychotic states
- Pheochromocytoma
- Co-infection with COVID-19
- Cardiogenic shock secondary to influenza myocarditis
- Known active tuberculosis or fungal infection
- Active viral hepatitis or active herpes virus infection
- Patient at risk of strongyloidiasis
- Subject with shock on enrolment and on ongoing vasopressor therapy (≥ 0.25 microg/kg/min)
- Indication for corticosteroid therapy in a dosage above 0.5 mg/kg/day prednisone-equivalent
- Subject deprived of liberty or under a legal protective measure (example: patients under guardianship or curatorship)
- Pregnant or breastfeeding woman
- Lack of clinical equipoise by the attending physician and/or the presence of a substantial risk associated with the patients’ participation in the trial.
Endpoints
Primary and secondary outcome measures (English text)
Primary endpoints 1
- Hierarchical composite endpoint, scored as follows: 1. In-hospital death (all-cause) at day 28 (yes/no), 2. If alive at day 28, number of ventilator-free days between day 0 and day 28, 3. If mechanical ventilation never required, number of ICU-free days between day 0 and day 28. Each patient in the intervention group will be compared with each patient in the control group according to this score: a win, loss, or tie will be defined for each pair based on which scored better.
Secondary endpoints 9
- In-hospital death (all-cause) at day 28
- Occurrence of organ dysfunction: need for extracorporeal membrane oxygenation (ECMO), invasive mechanical ventilation (MV), renal replacement therapy (RRT) and vasopressors
- Number of days alive without life support (ECMO, MV, RRT and vasopressor) at day 28
- Duration of supplemental oxygen use, non-invasive ventilation, high flow oxygen at day 28
- Length of stay in hospital and ICU
- Nasopharyngeal viral load measured at subsequent time-points (baseline, day 4, day 8)
- SF-36 quality of life questionnaire at day 90
- 90-day mortality
- Safety endpoint: occurrence of adverse events between D0 and D28: a. Hyperglycaemia (i.e., need for new insulin or increase in insulin >30% from initial/baseline dose); b. Clinically significant gastrointestinal bleeding (requiring endoscopy or red blood cell transfusion); c. Occurrence of Influenza-associated pulmonary aspergillosis ; d. Occurrence of ventilatory-acquired pneumonia ; e. New episodes of septic shock according to the Sepsis-3 criteria
Investigational products
Investigational medicinal products (IMPs), comparators, placebo, auxiliary
Test 1
DEXAMETHASONE VIATRIS 20 mg/5 ml, solution injectable en ampoule
PRD11455688 · Product
- Active substance
- Dexamethasone Phosphate
- Substance synonyms
- DEXAMETHASONE 21-(DIHYDROGEN PHOSPHATE)
- Pharmaceutical form
- SOLUTION FOR INJECTION
- Route of administration
- INTRAVENOUS
- Max daily dose
- 6 mg milligram(s)
- Max total dose
- 60 mg milligram(s)
- Max treatment duration
- 10 Day(s)
- Authorisation status
- Authorised
- ATC code
- H02AB02 — DEXAMETHASONE
- Marketing authorisation
- 34009 563 075 7 9
- MA holder
- VIATRIS SANTE
- MA country
- France
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
Placebo 1
CHLORURE DE SODIUM 0,9 % LAVOISIER, solution pour perfusion
PRD470771 · Product
- Active substance
- Sodium Chloride
- Pharmaceutical form
- SOLUTION FOR INFUSION
- Route of administration
- INTRAVENOUS
- Max daily dose
- 13.5 mg milligram(s)
- Max total dose
- 135 mg milligram(s)
- Max treatment duration
- 10 Day(s)
- Authorisation status
- Authorised
- ATC code
- B05XA03 — SODIUM CHLORIDE
- Marketing authorisation
- 34009 363 405 3 4
- MA holder
- LABORATOIRES CHAIX ET DU MARAIS
- MA country
- France
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
Sponsors and contacts
Sponsor organisations, regulatory contacts, third parties
Centre Hospital Region Metz Thionville
- Sponsor organisation
- Centre Hospital Region Metz Thionville
- Address
- 1 Allee Du Chateau, Cs 45001 Ars Laquenexy, Ars Laquenexy Cs 45001 Ars Laquenexy Ars Laquenexy
- City
- Metz Cedex 03
- Postcode
- 57085
- Country
- France
Scientific contact point
- Organisation
- Centre Hospital Region Metz Thionville
- Contact name
- LOUIS Guillaume
Public contact point
- Organisation
- Centre Hospital Region Metz Thionville
- Contact name
- LOUIS Guillaume
Locations
1 EU/EEA country · 48 investigational sites
By country
| Country | MS status | Planned subjects | Sites |
|---|---|---|---|
| France | Authorised, recruitment pending | 544 | 48 |
| Rest of world | — | 0 | — |
Investigational sites
Results and documents
Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial
Documents 17 files
Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.
| Type | Title | Version |
|---|---|---|
| Protocol (for publication) | D1_Protocol 2025-524976-40-00 | 4 |
| Protocol (for publication) | D1_Protocol 2025-524976-40-00_tc | 4 |
| Recruitment arrangements (for publication) | K1_Recruitment arrangements | 1 |
| Recruitment arrangements (for publication) | K3_Document additionnel_FR | 2 |
| Recruitment arrangements (for publication) | K3_Document additionnel_FR_tc | 2 |
| Subject information and informed consent form (for publication) | L1_SIS and ICF_adult patient | 3 |
| Subject information and informed consent form (for publication) | L1_SIS and ICF_adult patient continued participation | 3 |
| Subject information and informed consent form (for publication) | L1_SIS and ICF_adult patient continued participation_tc | 3 |
| Subject information and informed consent form (for publication) | L1_SIS and ICF_adult patient relative | 3 |
| Subject information and informed consent form (for publication) | L1_SIS and ICF_adult patient relative continued participation | 3 |
| Subject information and informed consent form (for publication) | L1_SIS and ICF_adult patient relative continued participation_tc | 3 |
| Subject information and informed consent form (for publication) | L1_SIS and ICF_adult patient relative_tc | 3 |
| Subject information and informed consent form (for publication) | L1_SIS and ICF_adult patient_tc | 3 |
| Subject information and informed consent form (for publication) | L1_SIS and NOF_use of data after patient death | 1 |
| Summary of Product Characteristics (SmPC) (for publication) | E2_SmPC DEXAMETHASONE 20mg5mL | 1 |
| Synopsis of the protocol (for publication) | D1_Protocol synopsis_2025-524976-40-00_FR | 4 |
| Synopsis of the protocol (for publication) | D1_Protocol synopsis_2025-524976-40-00_FR_tc | 4 |
Application history
1 submissions — initial application plus substantial / non-substantial modifications
| # | Type | Code | Submitted | Reference MS | Conclusion | Decision date |
|---|---|---|---|---|---|---|
| 1 | INITIAL | IN | 2026-03-24 | France | Acceptable 2026-06-19
|
2026-06-23 |