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Microbiome Alterations in IL10RA-deficient Patients After HSCT

10. august 2020 oppdatert av: Ying HUANG, Children's Hospital of Fudan University

Longitudinal Development of Intestinal Microbiome in IL10RA-deficient Patients After Hematopoietic Stem Cell Transplantation

To elucidate the longitudinal development of intestinal microbiota in patients with IL10RA deficiency after hematopoietic stem cell transplantation (HSCT). The investigators planned to collect fecal samples from IL10RA-deficient patients who received HSCT. Samples were collected more than once every three days after engraftment in lamina flow ward and at least once a week before discharge. Microbial DNA was extracted from the fecal samples. And all analysis was based on the next generation sequencing data.

Studieoversikt

Status

Avsluttet

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

Hematopoietic stem cell transplantation is considered the only curative therapy for patients with interleukin-10 receptor-A(IL10RA) deficiency. The investigators aimed to collect the fecal samples of these patients throughout the conditioning, transplantation until discharge, providing a dense insight into the longitudinal development of intestinal microbiota.

Studietype

Observasjonsmessig

Registrering (Faktiske)

13

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

  • Kina
    • Shanghai
      • Shanghai, Shanghai, Kina, 201102
        • Children's Hospital of Fudan University

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

1 dag til 6 år (Barn)

Tar imot friske frivillige

Ja

Kjønn som er kvalifisert for studier

Alle

Prøvetakingsmetode

Ikke-sannsynlighetsprøve

Studiepopulasjon

Patients who were diagnosed with IL10RA deficiency and who received the hematopoietic stem cell transplantation in a tertiary hospital were enrolled.

Beskrivelse

Inclusion Criteria:

  • IL10RA gene mutations;
  • Eligible for hematopoietic stem cell transplantation.

Exclusion Criteria:

  • Unwilling to participate.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

Kohorter og intervensjoner

Gruppe / Kohort
Intervensjon / Behandling
HSCT cohort
IL10RA-deficient patients who received hematopoietic stem cell transplantation
Fremgangsmåte: hematopoietic stem cell transplantation
  1. Reduced intensity conditioning(RIC) chemotherapy regimen before transplantation
  2. All patients were cared for in single rooms ventilated with a highly effective particulate air filtration system. All patients received intravenous immunoglobulin and antimicrobial prophylaxis, which included antiviral, antifungal, and Pneumocystis jirovecii prophylaxis with ganciclovir and micafungin, as per routine clinical practice before transplantation.
  3. Umbilical cord blood transplantation

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Shannon indices
Tidsramme: during the hospitalization of each eligible patient, an average of 90 days per patient
Shannon index is a popular diversity index in the ecological literature; minimum score is zero, higher values represent a better outcome
during the hospitalization of each eligible patient, an average of 90 days per patient
Simpson indices
Tidsramme: during the hospitalization of each eligible patient, an average of 90 days per patient
Simpson index in ecology is to measure the degree of concentration when individuals are classified into types; scale ranges [0,1]; lower values represent a better outcome
during the hospitalization of each eligible patient, an average of 90 days per patient
relative abundance of Proteobacteria
Tidsramme: during the hospitalization of each eligible patient, an average of 90 days per patient
describe the microbiome at the phylum level
during the hospitalization of each eligible patient, an average of 90 days per patient
relative abundance of Firmicutes
Tidsramme: during the hospitalization of each eligible patient, an average of 90 days per patient
describe the microbiome at the phylum level
during the hospitalization of each eligible patient, an average of 90 days per patient
Clostridium sensus_stricto_1
Tidsramme: during the hospitalization of each eligible patient, an average of 90 days per patient
describe the microbiome at the genus level
during the hospitalization of each eligible patient, an average of 90 days per patient
Escherichia - Shigella
Tidsramme: during the hospitalization of each eligible patient, an average of 90 days per patient
describe the microbiome at the genus level
during the hospitalization of each eligible patient, an average of 90 days per patient

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
chimerism
Tidsramme: during the hospitalization of each eligible patient, an average of 90 days per patient
The level of chimerism of each patient will be reported as percentages [0,100%]
during the hospitalization of each eligible patient, an average of 90 days per patient
manifestation of graft-versus-host disease
Tidsramme: during the hospitalization of each eligible patient, an average of 90 days per patient
describe the graft-versus-host disease happened to each patient
during the hospitalization of each eligible patient, an average of 90 days per patient
Sobs indices
Tidsramme: during the hospitalization of each eligible patient, an average of 90 days per patient
describe the the observed richness of each sample
during the hospitalization of each eligible patient, an average of 90 days per patient
Chao1 estimator
Tidsramme: during the hospitalization of each eligible patient, an average of 90 days per patient
describe the operational taxonomic unit(OTU) numbers of each sample
during the hospitalization of each eligible patient, an average of 90 days per patient
neutrophil cell count
Tidsramme: during the hospitalization of each eligible patient, an average of 90 days per patient
blood test results
during the hospitalization of each eligible patient, an average of 90 days per patient
platelet count
Tidsramme: during the hospitalization of each eligible patient, an average of 90 days per patient
blood test results
during the hospitalization of each eligible patient, an average of 90 days per patient

Andre resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
relative abundance of Clostridiales
Tidsramme: during the hospitalization of each eligible patient, an average of 90 days per patient
describe the microbiome at the order level
during the hospitalization of each eligible patient, an average of 90 days per patient
Shannoneven indices
Tidsramme: during the hospitalization of each eligible patient, an average of 90 days per patient
measure the community evenness, scale ranges [0,1]; higher values represent a better outcome
during the hospitalization of each eligible patient, an average of 90 days per patient
Simpsoneven indices
Tidsramme: during the hospitalization of each eligible patient, an average of 90 days per patient
measure community evenness, scale ranges [0,1]; higher values represent a better outcome
during the hospitalization of each eligible patient, an average of 90 days per patient

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Children's Hospital of Fudan University

Etterforskere

  • Hovedetterforsker: Ying Huang, MD, Children's Hospital of Fudan University

Publikasjoner og nyttige lenker

Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.

Generelle publikasjoner

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

1. oktober 2017

Primær fullføring (Faktiske)

28. februar 2020

Studiet fullført (Faktiske)

28. februar 2020

Datoer for studieregistrering

Først innsendt

19. november 2018

Først innsendt som oppfylte QC-kriteriene

21. november 2018

Først lagt ut (Faktiske)

26. november 2018

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

12. august 2020

Siste oppdatering sendt inn som oppfylte QC-kriteriene

10. august 2020

Sist bekreftet

1. august 2020

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • HSCT microbiomte

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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