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ENVIEANCILLAIRE: Efficacy of Nirsevimab in Children Hospitalised With RSV Bronchiolitis - A Subsidiary Study on the Immune Signature and Microbial Environment (ENVIEANCILLAIR)

7. juli 2026 opdateret af: Centre Hospitalier Intercommunal Creteil

Among children aged ≤ 6 months included in the ENVIE study, the ENVIE_ancillaire study will be offered to cases of RSV infection or to controls. The study involves a nasopharyngeal swab using a FLOQ-SWAB™ swab and a fingertip sample (dextro type). These samples will be collected specifically for the purpose of studying immunity.

A blood sample may also be requested for children weighing ≥5 kg who are included in the ENVIE_ancillaire study. The purpose of this sample collection will be to conduct an advanced immunological study

Studieoversigt

Detaljeret beskrivelse

Among children aged ≤ 6 months included in the ENVIE study, the ENVIE_ancillaire study will be offered to cases of RSV infection or to controls. The study involves a nasopharyngeal swab using a FLOQ-SWAB™ swab and a fingertip sample (dextro type). This sample collection will be carried out specifically for the study of immunity. Innate immune mediators (type I, II and III IFNs) and key inflammatory molecules (IL-6, TNF-alpha, IL-10) will be quantified, and adaptive immunity will be analysed by measuring local immunoglobulin titres (IgG, A, M, subclasses and specific antibodies against the inactivated virus) from the nasopharyngeal swab and blood samples absorbed onto filter paper. A blood sample may also be offered to children weighing ≥5 kg who are included in the ENVIE_ancillaire study. The purpose of this sample collection will be to conduct an advanced immunological study (identification of the host's protein, cellular and transcriptomic response). Finally, the bacterial microbiome (16S RNA) and the soluble virome will be characterised by high-throughput sequencing.

Undersøgelsestype

Observationel

Tilmelding (Anslået)

110

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Undersøgelse Kontakt Backup

Studiesteder

      • Créteil, Frankrig
        • Rekruttering
        • CHI Créteil
        • Kontakt:
          • Mickaël SHUM
      • Paris, Frankrig
        • Rekruttering
        • CHU Robert-Debré
        • Kontakt:
          • Naïm OULDALI, phD
      • Paris, Frankrig
        • Rekruttering
        • CHU Necker
        • Kontakt:
          • Julie TOUBIANA, PhD

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Barn

Tager imod sunde frivillige

N/A

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Among children aged 6 months or younger included in the ENVIE study, the ENVIE_ancillaire study will be offered to those with RSV infection or to the control group.

Beskrivelse

Inclusion Criteria:

  • Written consent to take part in the study
  • Registered with a social security scheme

Cases:

  • Children aged 6 months or under included in the ENVIE study. Treated for bronchiolitis caused by RSV
  • Admitted to hospital following a visit to the paediatric A&E department

Control group:

Children aged 6 months or under included in the ENVIE study. Admitted to a standard ward or a Short-Stay Unit, or having attended the paediatric A&E department

For one of the following reasons:

  • Febrile urinary tract infection, without acute ENT or respiratory symptoms
  • Acute gastroenteritis, without acute ENT or respiratory symptoms
  • Infant colic without fever, without ENT or acute respiratory condition
  • Weight stagnation or feeding difficulties without fever, without acute ENT or respiratory symptoms
  • Neonatal jaundice without fever, without acute ENT or respiratory symptoms
  • Unexplained crying without fever, without acute ENT or respiratory symptoms
  • Head injury, without acute ENT or respiratory symptoms
  • Admitted for acute surgical conditions, without fever, without acute ENT or respiratory symptoms
  • Nappy rash, without fever, without acute ENT or respiratory symptoms
  • Fracture, without fever, without acute ENT or respiratory symptoms.

Exclusion Criteria:

  • Refusal to participate by the legal representative
  • Administration of palivizumab
  • Maternal vaccination against RSV.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
Intervention / Behandling
Case
Children aged 6 months or under included in the ENVIE study, treated for bronchiolitis caused by RSV

Once those with parental authority have confirmed their willingness for their child to take part in the research and written consent has been obtained, the following samples may be collected:

  • A nasopharyngeal swab
  • A 'dextro' blood sample with a blot on filter paper. The nasopharyngeal samples and blotting papers will be stored at -20°C (or -80°C if possible) and transported to the Pasteur Institute as soon as possible (just-in-time).

il sera possible de proposer un prélèvement supplémentaire dans le cadre d'une étude immunologique avancée, chez les nourrissons ≥ 5 kg. Ce prélèvement comprend :

  • Un tube hépariné pour plasmatèque et cellulotèque : 5 mL
  • Un tube PAX gene pediatrique pour RNAtèque : 0,5 mL
Control group

Children aged 6 months or under included in the ENVIE study, admitted to a standard ward or a Short-Stay Unit, or who have attended the paediatric A&E department

For one of the following reasons:

  • Febrile urinary tract infection, without acute ENT or respiratory symptoms
  • Acute gastroenteritis, without acute ENT or respiratory symptoms
  • Infant colic without fever, without ENT or
  • Weight stagnation or feeding difficulties without fever, without acute ENT or respiratory symptoms
  • Neonatal jaundice without fever, without acute ENT or respiratory symptoms
  • Unexplained crying without fever, without acute ENT or respiratory symptoms
  • Head injury, without acute ENT or respiratory symptoms
  • Treated for an acute surgical condition, without fever, without acute ENT or respiratory symptoms
  • Nappy rash, without fever, without acute ENT or respiratory symptoms,
  • Fracture, without fever, without acute ENT or respiratory symptoms.

Once those with parental authority have confirmed their willingness for their child to take part in the research and written consent has been obtained, the following samples may be collected:

  • A nasopharyngeal swab
  • A 'dextro' blood sample with a blot on filter paper. The nasopharyngeal samples and blotting papers will be stored at -20°C (or -80°C if possible) and transported to the Pasteur Institute as soon as possible (just-in-time).

il sera possible de proposer un prélèvement supplémentaire dans le cadre d'une étude immunologique avancée, chez les nourrissons ≥ 5 kg. Ce prélèvement comprend :

  • Un tube hépariné pour plasmatèque et cellulotèque : 5 mL
  • Un tube PAX gene pediatrique pour RNAtèque : 0,5 mL

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
Mucosal cytokine profile of patients (type I and III interferons, pro-inflammatory cytokines)
Tidsramme: Baseline
Baseline

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

5. december 2024

Primær færdiggørelse (Anslået)

5. december 2026

Studieafslutning (Anslået)

5. december 2026

Datoer for studieregistrering

Først indsendt

7. juli 2026

Først indsendt, der opfyldte QC-kriterier

7. juli 2026

Først opslået (Faktiske)

13. juli 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

13. juli 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

7. juli 2026

Sidst verificeret

1. juli 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • 2024-A01208-39

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

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