NCT07786662

Brief Summary

This is a Phase III, multicentre, randomized, controlled, double-blind, superiority trial aiming to evaluate the efficacy of dexamethasone versus placebo in patients admitted to intensive care or intermediate care with influenza and hypoxemic acute respiratory failure. Patients will receive state-of-the-art standard therapy for severe influenza. They will be randomized in a 1:1 ratio to one of the two arms. Patients, investigators and care providers will be blinded to the patient arm. Patients will receive antiviral treatment and antibiotic therapy if bacterial co-infection is suspected. All clinical interventions such as use of ventilatory strategy, laboratory tests, and hemodynamic management will be left at the discretion of the team in both arms. Special attention will be given to the prompt diagnosis and management of aspergillosis, with investigators provided with decision support tools and algorithms based on the most recent definition (i.e., FUNDICU). Patients will be followed for up to 28 days after enrolment and national registries will be used for 90-day vital status assessment. Telephone calls will be made on day 90 to assess quality of life.

Trial Health

63
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
544

participants targeted

Target at P75+ for phase_3

Timeline
40mo left

Started Sep 2026

Typical duration for phase_3

Geographic Reach
1 country

48 active sites

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 18, 2026

Completed
8 days until next milestone

First Posted

Study publicly available on registry

August 26, 2026

Completed
6 days until next milestone

Study Start

First participant enrolled

September 1, 2026

Expected
3.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2029

2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2029

Last Updated

August 28, 2026

Status Verified

August 1, 2026

Enrollment Period

3.1 years

First QC Date

August 18, 2026

Last Update Submit

August 26, 2026

Conditions

Keywords

Severe Influenzacorticosteroidsacute respiratory distress syndromeintensive care unit

Outcome Measures

Primary Outcomes (1)

  • Hierarchical composite endpoint of all-cause mortality, number of ventilator-free days and number of ICU-free days

    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 Intensive Care Unit (ICU)-free days. 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) 3. If mechanical ventilation never required, number of ICU-free days (day) 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.

    At baseline and day 28

Secondary Outcomes (12)

  • In-hospital death

    At day 28

  • Duration of extracorporeal membrane oxygenation

    At day 28

  • Duration of invasive mechanical ventilation

    At day 28

  • Duration of renal replacement therapy

    At day 28

  • Duration of vasopressor therapy

    At day 28

  • +7 more secondary outcomes

Study Arms (2)

Dexamethasone

EXPERIMENTAL

a daily dose of 6 mg dexamethasone (investigational medicinal product) suspended in sodium chloride 0.9% and administered as a masked intravenous injection (total volume of 5 ml) once daily for up to 10 days from randomization OR until discharge from the participating intensive care or intermediate care unit.

Drug: Dexametasone

Placebo

PLACEBO COMPARATOR

a daily dose of placebo (sodium chloride 0.9%, total volume of 5 ml) intravenously once daily for up to 10 days from randomization OR until discharge from the participating intensive care or intermediate care unit.

Drug: Sodium chloride 0.9% (placebo)

Interventions

Experimental Group : A daily dose of 6 mg dexamethasone (investigational medicinal product) suspended in sodium chloride 0.9% and administered as a masked intravenous injection (total volume of 5 ml) once daily for up to 10 days from randomization OR until discharge from the participating intensive care or intermediate care unit.

Dexamethasone

Placebo : A daily dose of placebo (sodium chloride 0.9%, total volume of 5 ml) intravenously once daily for up to 10 days from randomization OR until discharge from the participating intensive care or intermediate care unit.

Placebo

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age ≥ 18 y
  • 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 3L/min OR non-invasive ventilation OR high flow oxygen therapy OR invasive mechanical ventilation
  • Written informed or emergency consent
  • Ongoing medical insurance

You may not qualify if:

  • 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 0.5mg/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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (48)

CH Argenteuil - Victor Dupouy

Argenteuil, 95107, France

Location

APHP - Hôpital Avicenne

Bobigny, 93000, France

Location

CH Bourg-en-Bresse - Fleyriat

Bourg-en-Bresse, 01012, France

Location

CHU de Caen Normandie - Hôpital Côte de Nacre

Caen, 14000, France

Location

CH de Cannes - Simone Veil

Cannes, 06400, France

Location

Centre Hospitalier Public du Cotentin

Cherbourg, 50102, France

Location

APHP - Hôpital Louis Mourier

Colombes, 92700, France

Location

APHP - Hôpital Henri Mondor

Créteil, 94010, France

Location

CHU de Dijon Bourgogne

Dijon, 21000, France

Location

CH Annecy Genevois - Site Annecy

Épagny, 74370, France

Location

CH Joséphine Backer - Site Gonesse

Gonesse, 95503, France

Location

CH de Haguenau

Haguenau, 67500, France

Location

Centre Hospitalier Départemental Vendée - Site La Roche-Sur-Yon

La Roche-sur-Yon, 85000, France

Location

Groupe Hospitalier la Rochelle-Ré-Aunis - Hôpital de La Rochelle

La Rochelle, 17019, France

Location

CH de Versailles - Site André Mignot

Le Chesnay, 78150, France

Location

CH Le Mans

Le Mans, 72037, France

Location

CHU de Lille - Hôpital Roger SALENGRO

Lille, 59037, France

Location

Groupe Hospitalier Bretagne Sud - Hôpital du Scorff

Lorient, 56100, France

Location

HCL - Hôpital de la Croix-Rousse

Lyon, 69004, France

Location

HCL - Hôpital Edouard Herriot

Lyon, 69437, France

Location

APHM - Hôpital de la Timone

Marseille, 13005, France

Location

Institut Paoli-Calmettes

Marseille, 13009, France

Location

APHM - CHU Nord

Marseille, 13015, France

Location

GH Sud-Ile de France - CH de Melun-Sénart

Melun, 77000, France

Location

CHR Metz-Thionville, Hopital de Mercy

Metz, 57085, France

Location

GH Portes de Provence - Hôpital de Montélimar

Montélimar, 26200, France

Location

CHU de Montpellier - Hôpital Saint Eloi

Montpellier, 34295, France

Location

CHRU de Nancy - Hôpital Central

Nancy, 54035, France

Location

CHU de Nantes - Hôtel Dieu

Nantes, 44093, France

Location

Groupe Hospitalier Privé Ambroise Paré-Hartmann - Hôpital Ambroise Paré

Neuilly-sur-Seine, 92200, France

Location

CHU de Nîmes - Hôpital Caremeau

Nîmes, 30029, France

Location

CHU d'Orléans

Orléans, 45064, France

Location

APHP - Hôpital Cochin

Paris, 75014, France

Location

APHP - Groupe Hospitalier Bichat - Claude Bernard

Paris, 75877, France

Location

CHI de Poissy Saint-Germain-en-Laye - Site Hospitalier de Poissy

Poissy, 78300, France

Location

CHU de Poitiers - Site de la Milétrie

Poitiers, 86021, France

Location

CHU de Rennes - Hôpital Pontchaillou

Rennes, 35033, France

Location

CH de Saint-Brieuc, Paimpol et Tréguier - Hôpital de Saint-Brieuc

Saint-Brieuc, 22000, France

Location

CH de Saint-Nazaire

Saint-Nazaire, 44600, France

Location

Groupe Hospitalier Rance Emeraude - Site Hospitalier Broussais

St-Malo, 35400, France

Location

CHRU de Strasbourg - Hôpital de Hautepierre

Strasbourg, 67091, France

Location

CHR Metz-Thionville, Hôpital Bel Air

Thionville, 57100, France

Location

CH de Tourcoing - Hôpital Chatiliez

Tourcoing, 59208, France

Location

Hôpital Nord Franche Comté - Site Trévenans

Trévenans, 90400, France

Location

CH de Valence

Valence, 26000, France

Location

CHRU de Nancy - Hôpitaux de Brabois

Vandœuvre-lès-Nancy, 54500, France

Location

CH Bretagne Atlantique - Site Vannes

Vannes, 56000, France

Location

Hôpitaux Privés de Metz - Hôpital Robert Schuman

Vantoux, 57070, France

Location

MeSH Terms

Conditions

Influenza, HumanCommunicable DiseasesRespiratory Distress Syndrome

Interventions

Sodium Chloride

Condition Hierarchy (Ancestors)

Respiratory Tract InfectionsInfectionsOrthomyxoviridae InfectionsRNA Virus InfectionsVirus DiseasesRespiratory Tract DiseasesDisease AttributesPathologic ProcessesPathological Conditions, Signs and SymptomsLung DiseasesRespiration Disorders

Intervention Hierarchy (Ancestors)

ChloridesHydrochloric AcidChlorine CompoundsInorganic ChemicalsSodium Compounds

Study Officials

  • Dr. Guillaume LOUIS, MD

    CHR Metz-Thionville, Hôpital de Mercy

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Masking Details
Pharmacist
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Patients will receive state-of-the-art standard therapy for severe influenza. They will be randomized in a 1:1 ratio to one of the two arms. Patients, investigators and care providers will be blinded to the patient arm. Patients will receive antiviral treatment and antibiotic therapy if bacterial co-infection is suspected
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 18, 2026

First Posted

August 26, 2026

Study Start (Estimated)

September 1, 2026

Primary Completion (Estimated)

October 1, 2029

Study Completion (Estimated)

December 1, 2029

Last Updated

August 28, 2026

Record last verified: 2026-08

Locations