Study to Evaluate Persistence of Antibodies After Vaccination With Meningococcal Vaccine GSK 134612
1. mars 2017 oppdatert av: GlaxoSmithKline
Persistence of Antibodies After Vaccination With GSK Biologicals' Meningococcal Vaccine GSK134612 in Adolescents and Young Adults
Subjects were previously vaccinated at 11 to 17 years of age.
This extension phase starts 24 months after vaccination and the subjects who were vaccinated in the primary study will be enrolled in this extension phase.
No new subjects will be enrolled.
Studieoversikt
Status
Fullført
Forhold
Intervensjon / Behandling
Detaljert beskrivelse
Subjects were previously vaccinated at 11 to 17 months of age with GSK Biologicals' meningococcal vaccine 134612 or with Mencevax™.
This extension phase starts 24 months after vaccination and the subjects who were vaccinated in the primary study will be enrolled in this extension phase.
No new studies will be enrolled.
The subjects will have 4 blood samples taken: at 24, 36, 48 and 60 months after vaccination.
Studietype
Intervensjonell
Registrering (Faktiske)
697
Fase
- Fase 3
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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Muntinlupa, Filippinene, 1781
- GSK Investigational Site
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Goa, India, 403202
- GSK Investigational Site
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Indore, India, 452001
- GSK Investigational Site
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New Delhi, India, 110002
- GSK Investigational Site
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Pune, India, 411 011
- GSK Investigational Site
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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
11 år til 17 år (Barn)
Tar imot friske frivillige
Nei
Kjønn som er kvalifisert for studier
Alle
Beskrivelse
Inclusion Criteria:
- Subjects who the investigator believes that they and/or their parent(s)/guardian(s) can and will comply with the requirements of the protocol should be enrolled in the study.
- A male or female having been vaccinated with a meningococcal vaccine in the primary study 109069.
- Written informed consent obtained from parent(s)/guardian(s) of the subject and written informed assent obtained from the subject if the subject is less than 18 years of age, or written informed consent obtained from the subject if the subject has achieved the 18th birthday.
- Healthy subjects as established by medical history and clinical examination before entering into the study.
Exclusion Criteria:
- Use of any investigational or non-registered product (drug or vaccine) within 30 days preceding the subject's first visit.
- History of meningococcal disease; such cases will be documented.
- Administration of a meningococcal polysaccharide or a meningococcal polysaccharide conjugate vaccine since previous vaccination in study 109069.
- Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history.
- Administration of immunoglobulins and/or any blood products within the three months preceding the subject's first visit.
- Bleeding disorders, such as thrombocytopenia, or subjects on anti-coagulant therapy
- Subjects who withdrew consent to be contacted for follow-up studies.
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: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Ingen (Open Label)
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
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Eksperimentell: Group A
Subjects who received GSK Biologicals' meningococcal vaccine 134612 in the primary vaccination study 109069.
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A blood sample will be taken yearly at each long-term follow-up visit (i.e.
Year 2 through Year 5) after vaccination during the primary study.
No vaccines are administered in the long-term follow-up study
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Aktiv komparator: Group B
Subjects who received MencevaxTM ACWY in the primary vaccination study 109069.
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A blood sample will be taken yearly at each long-term follow-up visit (i.e.
Year 2 through Year 5) after vaccination during the primary study.
No vaccines are administered in the long-term follow-up study
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Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
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Number of Seroprotected Subjects Against the Vaccine Meningococcal Serogroups
Tidsramme: At Month 24 post primary dose
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A seroprotected subject was defined as a subject who had anti-meningococcal serogroups A (MenA), C (MenC), W-135 (MenW-135) and Y (MenY) antibody titers equal to or above (≥) the cut-off value of 1:8.
The persistence of serum bactericidal antibodies was evaluated using baby rabbit complement (rSBA) titers.
The blood analyses were performed at the GSK Biologicals' laboratory.
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At Month 24 post primary dose
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Number of Seroprotected Subjects Against the Vaccine Meningococcal Serogroups
Tidsramme: At Month 36 post primary dose
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A seroprotected subject was defined as a subject who had anti-meningococcal serogroups A (MenA), C (MenC), W-135 (MenW-135) and Y (MenY) antibody titers equal to or above (≥) the cut-off value of 1:8.
The persistence of serum bactericidal antibodies was evaluated using baby rabbit complement (rSBA) titers.
The blood analyses for this timepoint were performed solely at the Public Health of England's (PHE) laboratory.
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At Month 36 post primary dose
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Number of Seroprotected Subjects Against the Vaccine Meningococcal Serogroups
Tidsramme: At Month 48 post primary dose
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A seroprotected subject was defined as a subject who had anti-meningococcal serogroups A (MenA), C (MenC), W-135 (MenW-135) and Y (MenY) antibody titers equal to or above (≥) the cut-off value of 1:8.
The persistence of serum bactericidal antibodies was evaluated using baby rabbit complement (rSBA) titers.
The blood analyses for this timepoint were performed solely at the Public Health of England's (PHE) laboratory.
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At Month 48 post primary dose
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Number of Seroprotected Subjects Against the Vaccine Meningococcal Serogroups
Tidsramme: At Month 60 post primary dose
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A seroprotected subject was defined as a subject who had anti-meningococcal serogroups A (MenA), C (MenC), W-135 (MenW-135) and Y (MenY) antibody titers equal to or above (≥) the cut-off value of 1:8.
The persistence of serum bactericidal antibodies was evaluated using baby rabbit complement (rSBA) titers.
The blood analyses for this timepoint were performed solely at the Public Health of England's (PHE) laboratory.
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At Month 60 post primary dose
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Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
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Number of Seropositive Subjects Against the Vaccine Meningococcal Serogroups
Tidsramme: At Months 24, 36, 48 and 60 post primary dose
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A seropositive subject was defined as a subject who had the anti-meningococcal serogroups A (MenA), C (MenC), W-135 (MenW-135) and Y (MenY) antibody titers equal to or above (≥) the cut-off value of 1:128.
The persistence of serum bactericidal antibodies was evaluated using baby rabbit complement (rSBA) titers.
The blood analyses were performed at the Public Health of England's (PHE) laboratory and at GSK Biologicals' laboratory.
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At Months 24, 36, 48 and 60 post primary dose
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Antibody Titers Against the Vaccine Meningococcal Serogroups
Tidsramme: At Months 24, 36, 48 and 60 post primary dose
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Seropositivity status was defined as the anti-meningococcal serogroups A (MenA), C (MenC), W-135 (MenW-135) and Y (MenY) titers equal to or above the cut-off value of 1:128.
Antibody titers were presented as geometric mean titers (GMTs).
The blood analyses were performed at the Public Health of England's (PHE) laboratory and at GSK Biologicals' laboratory.
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At Months 24, 36, 48 and 60 post primary dose
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Number of Subjects With Antibody Concentrations Against the Vaccine Polysaccharides
Tidsramme: At Month 24 post primary dose
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Antibody concentrations against polysaccharide A (anti-PSA), polysaccharide C (anti-PSC), polysaccharide W-135 (anti-PSW-135) and polysaccharide Y (anti-PSY) assessed were equal to or above (≥) the cut-off values of 0.3 micrograms/milliliter (µg/mL ) and 2.0 micrograms/milliliter (µg/mL).
Concentration of antibodies was determined by enzyme-linked immunosorbent assay (ELISA).
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At Month 24 post primary dose
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Antibody Concentrations Against the Vaccine Polysaccharides
Tidsramme: At Month 24 post primary dose
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Antibody concentrations against polysaccharide A (anti-PSA), polysaccharide C (anti-PSC), polysaccharide W-135 (anti-PSW-135) and polysaccharide Y (anti-PSY) assessed were equal to or above (≥) the cut-off values of 0.3 micrograms/milliliter (µg/mL ) and 2.0 micrograms/milliliter (µg/mL).
Concentration of antibodies was determined by enzyme-linked immunosorbent assay (ELISA).
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At Month 24 post primary dose
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Samarbeidspartnere og etterforskere
Det er her du vil finne personer og organisasjoner som er involvert i denne studien.
Sponsor
Studierekorddatoer
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Studer hoveddatoer
Studiestart
1. september 2009
Primær fullføring (Faktiske)
1. mai 2013
Studiet fullført (Faktiske)
1. mai 2013
Datoer for studieregistrering
Først innsendt
7. september 2009
Først innsendt som oppfylte QC-kriteriene
9. september 2009
Først lagt ut (Anslag)
10. september 2009
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
12. april 2017
Siste oppdatering sendt inn som oppfylte QC-kriteriene
1. mars 2017
Sist bekreftet
1. desember 2016
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- 112148
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