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Immunogenicity Study of a Reduced (4-dose) Vaccine Schedule and Rabies Immunoglobulins

5. april 2018 oppdatert av: Suda Sibunruang, Queen Saovabha Memorial Institute

Immunogenicity Study of a Reduced (4-dose) Vaccine Schedule and Rabies Immunoglobulins for Post-exposure Rabies Treatment

Reduced 4-dose intramuscular rabies vaccination schedule was announced by US-ACIP and WHO to be one of the post-exposure prophylaxis regimens. However, concurrent usage of this regimen with rabies immunoglobulin have never been studied in the aspect that the immunity level would above the protective level required by WHO (0.5 IU/ml) for at least a year period. This study would access this subject.

Studieoversikt

Status

Fullført

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

  • Controlled trial study
  • All 75 volunteers who had never had rabies immunization would be enrolled and designated into 3 groups.

group 1 : 25 Healthy volunteers age 18 - 60 yr who were attacked by mammals, possible exposed to rabies and had WHO category III exposure, all receive standard post - exposure rabies treatment with 5-dose intramuscular rabies vaccine on day 0,3,7,14,28 and 40 IU/kg of equine rabies immune globulin (ERIG).

group 2 : 25 Healthy volunteers age 18 - 60 yr receive 4-dose intramuscular rabies vaccine on day 0,3,7,14 and 40 IU/kg of equine rabies immune globulin (ERIG).

group 3 : 25 Healthy volunteers age 18 - 60 yr receive 4-dose intramuscular rabies vaccine on day 0,3,7,28 and 40 IU/kg of equine rabies immune globulin (ERIG).

5 cc - Blood would be drawn from all volunteers before vaccination and on day 14, 28, 90 and 360 for rabies neutralizing antibody titers (RNab).

The GMTs of RNab among both groups would be analyzed and compared.

Studietype

Intervensjonell

Registrering (Faktiske)

75

Fase

  • Ikke aktuelt

Kontakter og plasseringer

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

Studiesteder

      • Bangkok, Thailand, 10330
        • Queen Saovabha Memorial Institute

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

18 år til 60 år (Voksen)

Tar imot friske frivillige

Ja

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

  • healthy volunteers age 18-60 years.

Exclusion Criteria:

  • received prior rabies immunization
  • pregnancy
  • immunocompromised conditions

Studieplan

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

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Forebygging
  • Tildeling: Ikke-randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Enkelt

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Rabies vaccine, IM day 0,3,7,28 with RIG
Healthy volunteers received rabies vaccination intramuscularly on day 0,3,7 and 28 with equine rabies immunoglobulin 40 IU/Kg on day 0.

Group 1: rabies vaccination was given to rabies exposed victims on day 0,3,7,14,28 with ERIG on day 0.

Group 2: rabies vaccination was given to healthy volunteers on day 0,3,7,14 with ERIG on day 0.

Group 3: rabies vaccination was given to healthy volunteers on day 0,3,7,28 with ERIG on day 0.

Andre navn:
  • Equine rabies immunoglobulin produced by Thai Red Cross
Eksperimentell: Rabies vaccine, IM day 0,3,7,14 with RIG
Healthy volunteers received rabies vaccination intramuscularly on day 0,3,7 and 14 with equine rabies immunoglobulin 40 IU/Kg on day 0.

Group 1: rabies vaccination was given to rabies exposed victims on day 0,3,7,14,28 with ERIG on day 0.

Group 2: rabies vaccination was given to healthy volunteers on day 0,3,7,14 with ERIG on day 0.

Group 3: rabies vaccination was given to healthy volunteers on day 0,3,7,28 with ERIG on day 0.

Andre navn:
  • Equine rabies immunoglobulin produced by Thai Red Cross
Aktiv komparator: Rabies vaccine, IM Day 0,3,7,14,28 with RIG
Rabies exposed victims receive rabies vaccination intramuscularly on Day 0,3,7,14,28 with equine rabies immunoglobulin 40 IU/Kg on day 0

Group 1: rabies vaccination was given to rabies exposed victims on day 0,3,7,14,28 with ERIG on day 0.

Group 2: rabies vaccination was given to healthy volunteers on day 0,3,7,14 with ERIG on day 0.

Group 3: rabies vaccination was given to healthy volunteers on day 0,3,7,28 with ERIG on day 0.

Andre navn:
  • Equine rabies immunoglobulin produced by Thai Red Cross

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Rabies Neutralizing antibody titers in volunteers who receive rabies vaccination on day 0,3,7,14
Tidsramme: Change from baseline of Rabies Neutralizing Antibody Titers at 1 year period
Rabies Neutralizing antibody titers in volunteers who receive rabies vaccination on day 0,3,7,14 would be determined on day 0,14, 28, 90 and 360. Rnab titers above 0.5 IU/ml would be considered as protective levels as WHO recommendation.
Change from baseline of Rabies Neutralizing Antibody Titers at 1 year period

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Rabies Neutralizing antibody titers in volunteers who receive rabies vaccination on day 0,3,7,28
Tidsramme: Change from baseline of Rabies Neutralizing Antibody Titers at 1 year period
Rabies Neutralizing antibody titers in volunteers who receive rabies vaccination on day 0,3,7 and 28 would be determined on day 0,14, 28, 90 and 360. Rnab titers above 0.5 IU/ml would be considered as protective levels as WHO recommendation.
Change from baseline of Rabies Neutralizing Antibody Titers at 1 year period

Samarbeidspartnere og etterforskere

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

Etterforskere

  • Hovedetterforsker: Suda Sibunruang, MD, Queen Saovabha Memorial Institute

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. september 2015

Primær fullføring (Faktiske)

1. april 2018

Studiet fullført (Faktiske)

1. april 2018

Datoer for studieregistrering

Først innsendt

12. juli 2012

Først innsendt som oppfylte QC-kriteriene

12. juli 2012

Først lagt ut (Anslag)

16. juli 2012

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

6. april 2018

Siste oppdatering sendt inn som oppfylte QC-kriteriene

5. april 2018

Sist bekreftet

1. april 2018

Mer informasjon

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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