Study to Evaluate Persistence of Antibodies After Vaccination With Meningococcal Vaccine GSK 134612
Persistence of Antibodies After Vaccination With GSK Biologicals' Meningococcal Vaccine GSK134612 in Adolescents and Young Adults
Panoramica dello studio
Stato
Stato
Condizioni
Condizioni
Intervento / Trattamento
Intervento / Trattamento
Descrizione dettagliata
Tipo di studio
Tipo di studio
Iscrizione (Effettivo)
Iscrizione
Fase
Fase
- Fase 3
Contatti e Sedi
Criteri di partecipazione
Criteri di ammissibilità
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
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.
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Prevenzione
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Nessuno (etichetta aperta)
Numero di armi
Armi e interventi
Gruppo di partecipanti / ArmGruppo di partecipanti / Arm |
Intervento / TrattamentoIntervento / Trattamento |
|---|---|
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Sperimentale: 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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Comparatore attivo: 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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Cosa sta misurando lo studio?
Misure di risultato primarie
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Number of Seroprotected Subjects Against the Vaccine Meningococcal Serogroups
Lasso di tempo: At Month 24 post primary dose
|
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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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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Misure di risultato secondarie
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Number of Seropositive Subjects Against the Vaccine Meningococcal Serogroups
Lasso di tempo: At Months 24, 36, 48 and 60 post primary dose
|
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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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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Collaboratori e investigatori
Sponsor
Sponsor
Studiare le date dei record
Studia le date principali
Inizio studio
Inizio studio
Completamento primario (Effettivo)
Completamento primario
Completamento dello studio (Effettivo)
Completamento dello studio
Date di iscrizione allo studio
Primo inviato
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Stima)
Primo Inserito
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento pubblicato
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
Altri numeri di identificazione dello studio
- 112148
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