The Changes of Plasmacytoid Dendritic Cells Frequency and Function During Antiviral Therapy
4. juli 2017 oppdatert av: Yao Xie, Beijing Ditan Hospital
The Changes of Plasmacytoid Dendritic Cells Frequency and Function During Pegylated Interferon α-2a and Entecavir(ETV) Treatment in Patients With Chronic Hepatitis B.
Pegylated interferon(IFN) α-2a(Peg-IFN-α) not only inhibit viral replication, but also play an important role in immune regulation, while entecavir(ETV) drugs only inhibit viral replication.
In hepatitis B infection, Plasmacytoid Dendritic Cells（pDCs） are the main effector cells in early antiviral innate immune response.
This study was aimed at investigating the changes of pDCs frequency and function, and the expression of costimulatory molecules CD86(Cluster of Differentiation antigen 86) during Peg-IFN-αand entecavir(ETV) therapy.Meanwhile, investigators want to verify whether Peg-IFN-α suppressed the virus and the reduction of virus led to the recovery of pDCs function, or Peg-IFN-α enhanced pDCs function which gave rise to the decline of the virus.
Studieoversikt
Status
Ukjent
Forhold
Detaljert beskrivelse
Pegylated interferon α-2a(Peg-IFN-α)and entecavir(ETV) drugs can inhibit viral replication , but Peg-IFN-α also play an important role in immune regulation .
In hepatitis B infection, Plasmacytoid Dendritic Cells (pDCs) are the main effector cells in early antiviral innate immune response.Peg-IFN-α recommended as the first-line treatment has a higher chance to achieve HBeAg seroconversion and even HBsAg disappearance than entecavir(ETV) drugs, which may be related to the functional activation of pDCs in the case of hepatitis and the function enhancement of pDCs during Peg-IFN-α therapy.
This study was aimed at investigating the changes of pDCs frequency and function, and the expression of costimulatory molecules CD86 during Peg-IFN-αandentecavir(ETV) therapy.Meanwhile,investigators want to explore whether the decline of HBsAg and HBeAg resulted in recovery of CD86+pDC function, or recovery of CD86 + pDC function led to the decrease of HBsAg and HBeAg.
Several studies demonstrated that HBsAg and HBeAg could damage pDC function, and the loss of HBsAg and HBeAg led to recovery of CD86+pDC function.
Studietype
Observasjonsmessig
Registrering (Forventet)
120
Kontakter og plasseringer
Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.
Studiesteder
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Beijing
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Beijing, Beijing, Kina, 100015
- Rekruttering
- Beijing Ditan Hospital,Capital Medical University
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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
20 år til 60 år (Voksen)
Tar imot friske frivillige
Nei
Kjønn som er kvalifisert for studier
Alle
Prøvetakingsmetode
Ikke-sannsynlighetsprøve
Studiepopulasjon
the population in this study was composed of HBeAg positive chronic hepatitis B patients defined as HBsAg positive, HBeAg positive, and detectable HBVDNA load with ALT(alanine aminotransferase) level ≥190 U/L for more than 6 months.
Beskrivelse
Inclusion Criteria:
- HBsAg and HBeAg positive for more than 6 months, HBVDNA detectable with ALT(alanine aminotransferase) level abnormal lasted for three months and at least time190 IU/L or liver puncture biopsy demonstrated apparent inflammation, never treated before enrolled.
Exclusion Criteria:
- Active consumption of alcohol and/or drugs
- Co-infection with human immunodeficiency virus, hepatitis C virus, or hepatitis D virus
- History of autoimmune hepatitis
- Psychiatric disease
- Evidence of neoplastic diseases of the liver
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 |
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experimental group
patients who were untreated ever in immune-active phase were given subcutaneous injection of Peginterferon Alfa-2a with starting dose of 180 mg/weekly till 48 weeks.
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control group
patients who were untreated ever in immune-active phase took entecavir(ETV) for maintenance treatment.
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Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
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the change of pDC%
Tidsramme: after treatment 24 weeks
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The host immune function will be evaluated by pDC.
pDC% will be measured by flow cytometry after Pegylated Interferon α-2a and entecavir(ETV) Treatment 24 weeks.
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after treatment 24 weeks
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the change of CD86+pDC%
Tidsramme: after treatment 24 weeks
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CD86+pDC% will be measured by flow cytometry after Pegylated Interferon α-2a and entecavir(ETV) Treatment 24 weeks.
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after treatment 24 weeks
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the change of mean fluorescence intensity of costimulatory molecules CD86(CD86-MFI)
Tidsramme: after treatment 24 weeks
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mean fluorescence intensity of costimulatory molecules CD86(CD86-MFI) will be measured by flow cytometry after Pegylated Interferon α-2a and entecavir(ETV) Treatment 24 weeks.
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after treatment 24 weeks
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the change of absolute molecular counting of costimulatory molecules CD86
Tidsramme: after treatment 24 weeks
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absolute molecular counting of costimulatory molecules CD86 (CD86-ABC) will be measured by flow cytometry after Pegylated Interferon α-2a and entecavir(ETV) Treatment 24 weeks.
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after treatment 24 weeks
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Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
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the change of HBVDNA levels (IU/ML)
Tidsramme: after treatment 48 weeks
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the curative effect of antiviral therapy will be evaluated by HBV DNA levels
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after treatment 48 weeks
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the change of ALT levels(U/L)
Tidsramme: after treatment 48 weeks
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the curative effect of antiviral therapy will be evaluated by ALT levels
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after treatment 48 weeks
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the change of AST levels(U/L)
Tidsramme: after treatment 48 weeks
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the curative effect of antiviral therapy will be evaluated by AST levels
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after treatment 48 weeks
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the change of HBsAg levels (IU/ML)
Tidsramme: after treatment 48 weeks
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the curative effect of antiviral therapy will be evaluated by HBsAg levels
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after treatment 48 weeks
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the change of HBeAg levels (IU/ML)
Tidsramme: after treatment 48 weeks
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the curative effect of antiviral therapy will be evaluated by HBeAg levels
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after treatment 48 weeks
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Samarbeidspartnere og etterforskere
Det er her du vil finne personer og organisasjoner som er involvert i denne studien.
Sponsor
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
1. januar 2016
Primær fullføring (Forventet)
1. desember 2017
Studiet fullført (Forventet)
1. desember 2017
Datoer for studieregistrering
Først innsendt
30. juni 2017
Først innsendt som oppfylte QC-kriteriene
4. juli 2017
Først lagt ut (Faktiske)
7. juli 2017
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
7. juli 2017
Siste oppdatering sendt inn som oppfylte QC-kriteriene
4. juli 2017
Sist bekreftet
1. juli 2017
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
- Sykdommer i fordøyelsessystemet
- RNA-virusinfeksjoner
- Virussykdommer
- Infeksjoner
- Blodbårne infeksjoner
- Smittsomme sykdommer
- Leversykdommer
- Hepatitt, viral, menneskelig
- Hepadnaviridae-infeksjoner
- DNA-virusinfeksjoner
- Enterovirusinfeksjoner
- Picornaviridae-infeksjoner
- Hepatitt B
- Hepatitt
- Hepatitt A-virus
- Hepatitt B, kronisk
- Hepatitt, kronisk
Andre studie-ID-numre
- DTXY011
Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .
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