ClinicalTrials.gg
Status unknownNCT05582239RESPIVACUpdated May 17, 2023

Measure of Vaccine Effectiveness to Prevent Hospitalizations for Viral Respiratory Infections in Adults

An observational study in Severe Acute Respiratory Infection (SARI), Influenza and COVID-19, sponsored by ANRS, Emerging Infectious Diseases. Status unknown at 8 sites in France. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-05-17.

Sponsored by ANRS, Emerging Infectious Diseases · Observational

The sponsor has not verified this record recently (last verified May 2023), so the status shown — last known as Recruiting — may be out of date.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
2,400
Ages
18 Years and older
Sex
All
01

Study summary

This study is a prospective, multicentric, observational test negative design study on adults hospitalized for Severe Acute Respiratory Infection (SARI), regardless of their vaccination status.

Read the detailed description

Participation to the study will be systematically proposed to all patients hospitalized fitting inclusion criteria. Patient's screening will be done in emergency department or hospital department with direct admission. Medical investigators explain the objectives of the studies, procedure and propose the patient to participate in the study. Socio-demographic data, clinical and virological data will be collected in an electronic clinical research form.

A follow-up at 1 and 3 months after hospitalization discharge will be scheduled to evaluate health status.

The remainder of respiratory samples that have been performed for care will be used for further testing depending on epidemiological situation and will be stored at -80°C.

02

Conditions studied

  • Severe Acute Respiratory Infection (SARI)
  • Influenza
  • COVID-19

Keywords

  • Severe acute respiratory infection (SARI)
  • Vaccine effectiveness
  • Influenza
  • COVID-19
03

In context

Influenza, Human

2,264 studies on the registry are indexed under Influenza, Human; 173 are open to participants now.

This study's planned enrollment of 2,400 is above the median of 300 across 313 observational studies indexed under Influenza, Human.

Browse Influenza, Human studies →

Lead sponsor

ANRS, Emerging Infectious Diseases is the lead sponsor of 215 studies on the registry; 38 are open to participants now.

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
Sampling method
Probability sample

Study population

Hospitalized patients presenting with SARI symptom onset in the first 14 days

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age ≥ 18 years old
  • Admitted in a hospital for at least 24 h
  • Presents SARI criteria within onset within the last 14 days before sampling and less than 48 h after hospitalisations:

At least one of the following signs (without treatment): fever or feverishness, malaise, headache, myalgia or sign of fatigue (loss of weight or anorexia or confusion or dizziness) Associated with at least one respiratory symptom or sign (cough, sore throat or shortness of breath; or tachypnoea or signs of low oxygen saturation)

  • completed non-opposition form
  • Respiratory samples within 14 days after symptoms onset, in the context of care

Exclusion criteria

Exclusion Criteria:

  • Contraindication of vaccination
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
2,400 participants (estimated)
Patient registry
No
Biospecimen retention
Samples without dna
06

What researchers measure

Primary outcomes

  1. Vaccine effectiveness

    Comparison of the number of virologically confirmed cases of vaccine preventable Severe Acute Respiratory Infections (SARI) among hospitalized vaccinated patients compared with unvaccinated patients.

    Time frame: up to 48 hours

Secondary outcomes

  1. Covid-19 vaccine effectiveness

    Comparison of numbers of hospitalized cases with documented COVID-19 infection in vaccinated and unvaccinated patients according to: * Age * comorbidities * Vaccine schedule (numbers of doses and brand) * date of vaccination * SARS-CoV-2 Variant

    Time frame: up to 48 hours

  2. Influenza vaccine effectiveness

    Comparison of numbers of hospitalized cases with documented flu in vaccinated and unvaccinated according to: * Age * Comorbidities * Vaccine brand * Date of vaccination * Previous vaccination * Viral strain

    Time frame: up to 48 hours

  3. Prevalence of viral and bacterial co-infections

    Prevalence of other viruses and bacteria detected by PCR, antigen tests, microbiology samples.

    Time frame: up to 48 hours

  4. Incidence of SARI by site

    Incidence rate of SARI by sites

    Time frame: up to 12 months

  5. Clinical burden of SARI

    European Quality of Life by 5 Dimension (EQ5D) score assessed at 1 month and 3 months after hospitalization discharge. Scale from 0 to 100 with 0 corresponding to the worst quality of life.

    Time frame: up to 3 months

07

Study locations

8 of 8 sites recruiting
  • CHU
    Dijon, France
    • Lionel PIROTH, MD · Principal investigator
    Recruiting
  • Groupement hospitalier Edouard Herriot
    Lyon, France
    • Philippe VANHEMS, MD · Principal investigator
    Recruiting
  • Hôpital Gui de Chauliac
    Montpellier, France
    • Florence GALTIER, MD · Principal investigator
    Recruiting
  • CHU
    Nantes, France
    • Maëva LEFEBVRE, MD · Principal investigator
    Recruiting
  • Hôpital Cochin
    Paris, 75014, France
    • Liem LUONG, MD · Principal investigator
    Recruiting
  • Hôpital Bichat
    Paris, France
    • Xavier DUVAL, MD · Principal investigator
    Recruiting
  • CHU
    Rennes, France
    • Fabrice LAINE, MD · Principal investigator
    Recruiting
  • CHU
    Saint-Etienne, France
    • Elisabeth BOTHELHO-NEVERS, MD · Principal investigator
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Jan 2023 (actual). Primary completion is estimated for Jan 2026, 36 months after the start.

Of 86 non-industry observational studies under Influenza, Human, half reached primary completion within 31 months of starting (the median), counting those still running; a quarter within 12 and three quarters within 92. This study's planned 36 months is above that.

Counting every sponsor, half of 121 studies reached it within 20 months; a quarter within 7 and three quarters within 58.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 10, 2022
First posted
Oct 17, 2022
StartActual
Jan 20, 2023
Primary completionEst.
Jan 20, 2026
CompletionEst.
Jan 20, 2026
Last update
May 17, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 17, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05582239
Collaborators
P95, I-REIVAC, EPICONCEPT, Institut de Recherche en Santé Publique, France
Responsible party
Sponsor
First posted
Oct 17, 2022
Start date
Jan 20, 2023
Primary completion
Jan 20, 2026 (estimated)
Completion
Jan 20, 2026 (estimated)
Last update
May 17, 2023

Study contacts

Claire Rekacewicz, MD
Contact
claire.rekacewicz@inserm.fr
+ 33 1 42 34 83 75
Mohamed Ben Mechlia, PhD
Contact
mohamed.ben-mechlia@anrs.fr
+ 33 1 44 23 61 38

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in May 2023. You cannot join it, but the record below documents what was studied.

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