Questa pagina è stata tradotta automaticamente e l'accuratezza della traduzione non è garantita. Si prega di fare riferimento al Versione inglese per un testo di partenza.

Study Evaluating Prevnar Infant Long-term Immune Response Versus Prevnar Naive Cohort (PILOT)

5 ottobre 2011 aggiornato da: Pfizer

Characterization of the Prevnar Infant Long-term Immune Response vs a Prevnar Naive Cohort

The purpose of this study is to assess the "late" immune response to further doses of pneumococcal conjugate vaccine more than 10 years after primary immunization with Prevnar (7vPnC) in infancy, as compared with individuals who did not receive Prevnar in infancy (the Prevnar naive cohort which received MnCC). The study will take place at a single study center. Study participants must have participated previously in a specific Wyeth Prevnar study (Study D118-P8) and must still be enrolled in the Northern California Kaiser Permanente (NCKP) health plan.

Panoramica dello studio

Tipo di studio

Interventistico

Iscrizione (Effettivo)

75

Fase

  • Fase 2

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

    • California
      • Hayward, California, Stati Uniti, 94545
        • Pfizer Investigational Site
      • San Jose, California, Stati Uniti, 95119
        • Pfizer Investigational Site

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

Da 8 anni a 16 anni (Bambino)

Accetta volontari sani

Sessi ammissibili allo studio

Tutto

Descrizione

Inclusion Criteria:

  • Fully vaccinated per-protocol (4 doses of vaccine given at 2, 4, 6, and 12-15 months of age) subjects enrolled in the Prevnar arm of Study D118-P8, OR
  • Fully vaccinated per-protocol subjects from the control arm of the same study that did not receive Prevnar after the close of Study D118-P8, or at any time following the study, AND
  • Still enrolled in NCKP health plan.
  • Subjects included in either group above must be in good health as determined by medical history, physical examination, and clinical judgment.

Exclusion Criteria:

  • Previous receipt of pneumococcal polysaccharide vaccine.
  • History of documented recurrent pneumococcal otitis media or any occurence of pneumonia within past 12 months
  • History of documented invasive pneumococcal disease (defined as a positive culture of S. pneumoniae from a normally sterile body site).
  • Known or suspected disease or dysfunction of the immune system, including:
  • HIV infection
  • Malignancy
  • Receipt of immunosuppressive therapy
  • Sickle cell hemoglobinopathy
  • Concomitant vaccination during the study period.
  • Known hypersensitivity to any component of Prevnar.
  • Any major illness/condition that, in the investigator's judgment, will substantially increase the risk associated with the subject's participation in and completion of, the study, or could preclude the evaluation of the subject's response.
  • Receipt of immune globulin within the past 3 months.
  • Positive pregnancy test for menarchal female subjects.
  • Females who are breastfeeding.
  • For control subjects, previous receipt of Prevnar at any time.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Scienza basilare
  • Assegnazione: Non randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: 1
Subjects received Prevnar in study D118-P8
single injection, single dose, single site, 0.5 mL per dose.
Altri nomi:
  • 13vPnC
Sperimentale: 2
Subjects received MnCC in study D118-P8
single injection, single dose, single site, 0.5 mL per dose.
Altri nomi:
  • 13vPnC

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Percentage of Participants Achieving a Pneumococcal IgG Antibody Concentration ≥0.35 Mcg/mL for the 13 Serotypes for 7vPnC / 13vPnC in Comparison to MnCC / 13vPnC After Vaccination (Visit 5)
Lasso di tempo: Day 28 (Visit 5)
Percentage of participants achieving predefined IgG antibody threshold ≥0.35 micrograms per milliliter (Mcg/mL) for the 13 pneumococcal serotypes (7vPnC serotypes 4, 6B, 9V, 14, 18C, 19F, 23F and additional serotypes 1, 3, 5, 6A, 7F, and 19A) along with the exact, 2-sided 95% confidence intervals (CIs) based on the observed percentage of participants.
Day 28 (Visit 5)
Percentage of Participants Achieving a Pneumococcal IgG Antibody Concentration ≥0.35 Mcg/mL for the 13 Serotypes for 7vPnC / 13vPnC in Comparison to MnCC / 13vPnC After Vaccination (Visit 4)
Lasso di tempo: Day 7 (Visit 4)
Percentage of participants achieving predefined IgG antibody threshold ≥0.35 Mcg/mL for the 13 pneumococcal serotypes (7vPnC serotypes 4, 6B, 9V, 14, 18C, 19F, 23F and additional serotypes 1, 3, 5, 6A, 7F, and 19A) along with the exact, 2-sided 95% CIs based on the observed percentage of participants.
Day 7 (Visit 4)
Percentage of Participants Achieving a Pneumococcal Opsonophagocytic Activity (OPA) Antibody Titer ≥LLOQ for the 13 Serotypes for 7vPnC / 13vPnC in Comparison to MnCC / 13vPnC After Vaccination (Visit 5)
Lasso di tempo: Day 28 (Visit 5)
Percentage of participants achieving predefined OPA antibody titer ≥ serotype-specific lower limit of quantification (LLOQ) using modified microcolony assays for the 13 pneumococcal serotypes (7vPnC serotypes 4, 6B, 9V, 14, 18C, 19F, 23F and additional serotypes 1, 3, 5, 6A, 7F, and 19A) along with the exact, 2-sided 95% CIs based on the observed percentage of participants. LLOQ for each serotype: 1=1:8, 3=1:12, 4=1:21, 5=1:29, 6A=1:37, 6B=1:43, 7F=1:210, 9V=1:345, 14=1:35, 18C=1:31, 19A=1:18, 19F=1:48, 23F=1:13.
Day 28 (Visit 5)
Percentage of Participants Achieving a Pneumococcal Opsonophagocytic Activity (OPA) Antibody Titer ≥LLOQ for the 13 Serotypes for 7vPnC / 13vPnC in Comparison to MnCC / 13vPnC After Vaccination (Visit 4)
Lasso di tempo: Day 7 (Visit 4)
Percentage of participants achieving predefined OPA antibody titer ≥ serotype-specific lower limit of quantification (LLOQ) using modified microcolony assays for the 13 pneumococcal serotypes (7vPnC serotypes 4, 6B, 9V, 14, 18C, 19F, 23F and additional serotypes 1, 3, 5, 6A, 7F, and 19A) along with the exact, 2-sided 95% CIs based on the observed percentage of participants. LLOQ for each serotype: 1=1:8, 3=1:12, 4=1:21, 5=1:29, 6A=1:37, 6B=1:43, 7F=1:210, 9V=1:345, 14=1:35, 18C=1:31, 19A=1:18, 19F=1:48, 23F=1:13.
Day 7 (Visit 4)
Percentage of Participants Achieving a Pneumococcal Opsonophagocytic Activity (OPA) Antibody Titer ≥1:8 for the 13 Serotypes for 7vPnC / 13vPnC in Comparison to MnCC / 13vPnC After Vaccination (Visit 5)
Lasso di tempo: Day 28 (Visit 5)
Percentage of participants achieving predefined OPA antibody titer ≥1:8 for the 13 pneumococcal serotypes (7vPnC serotypes 4, 6B, 9V, 14, 18C, 19F, 23F and additional serotypes 1, 3, 5, 6A, 7F, and 19A) along with the exact, 2-sided 95% CIs based on the observed percentage of participants. The lowest titer that can be determined using the standard OPA assay is a titer of 1:8 limit of detection (LOD) and is the same for each serotype-specific OPA assay.
Day 28 (Visit 5)
Percentage of Participants Achieving a Pneumococcal Opsonophagocytic Activity (OPA) Antibody Titer ≥1:8 for the 13 Serotypes for 7vPnC / 13vPnC in Comparison to MnCC / 13vPnC After Vaccination (Visit 4)
Lasso di tempo: Day 7 (Visit 4)
Percentage of participants achieving predefined OPA antibody titer ≥1:8 for the 13 pneumococcal serotypes (7vPnC serotypes 4, 6B, 9V, 14, 18C, 19F, 23F and additional serotypes 1, 3, 5, 6A, 7F, and 19A) along with the exact, 2-sided 95% CIs based on the observed percentage of participants. The lowest titer that can be determined using the standard OPA assay is a titer of 1:8 limit of detection (LOD) and is the same for each serotype-specific OPA assay.
Day 7 (Visit 4)

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Pneumococcal Immunoglobulin G (IgG) Geometric Mean Concentrations (GMCs) for the 13 Serotypes Relative to 7vPnC / 13vPnC Prevaccination Visit 1 and Postvaccination Visit 5
Lasso di tempo: Baseline (Visit 1), Day 28 (Visit 5)
Pneumococcal IgG GMCs measured as Mcg/mL for the 13 pneumococcal serotypes (7vPnC serotypes 4, 6B, 9V, 14, 18C, 19F, 23F and additional serotypes 1, 3, 5, 6A, 7F, and 19A). The 2-sided, 95% CIs for the GMCs were constructed by back transformation of the CIs for the mean of the logarithmically transformed assay results computed using the Student t distribution.
Baseline (Visit 1), Day 28 (Visit 5)
Pneumococcal Immunoglobulin G (IgG) Geometric Mean Concentrations (GMCs) for the 13 Serotypes Relative to MnCC / 13vPnC Prevaccination Visit 1 and Postvaccination Visit 5
Lasso di tempo: Baseline (Visit 1), Day 28 (Visit 5)
Pneumococcal IgG GMCs measured as Mcg/mL for the 13 pneumococcal serotypes (7vPnC serotypes 4, 6B, 9V, 14, 18C, 19F, 23F and additional serotypes 1, 3, 5, 6A, 7F, and 19A). The 2-sided, 95% CIs for the GMCs were constructed by back transformation of the CIs for the mean of the logarithmically transformed assay results computed using the Student t distribution.
Baseline (Visit 1), Day 28 (Visit 5)
Pneumococcal Immunoglobulin G (IgG) Geometric Mean Concentrations (GMCs) for the 13 Serotypes Relative to 7vPnC / 13vPnC Prevaccination Visit 1 and Postvaccination Visit 4
Lasso di tempo: Baseline (Visit 1), Day 7 (Visit 4)
Pneumococcal IgG GMCs measured as Mcg/mL for the 13 pneumococcal serotypes (7vPnC serotypes 4, 6B, 9V, 14, 18C, 19F, 23F and additional serotypes 1, 3, 5, 6A, 7F, and 19A). The 2-sided, 95% CIs for the GMCs were constructed by back transformation of the CIs for the mean of the logarithmically transformed assay results computed using the Student t distribution.
Baseline (Visit 1), Day 7 (Visit 4)
Pneumococcal Immunoglobulin G (IgG) Geometric Mean Concentrations (GMCs) for the 13 Serotypes Relative to MnCC / 13vPnC Prevaccination Visit 1 and Postvaccination Visit 4
Lasso di tempo: Baseline (Visit 1), Day 7 (Visit 4)
Pneumococcal IgG GMCs measured as Mcg/mL for the 13 pneumococcal serotypes (7vPnC serotypes 4, 6B, 9V, 14, 18C, 19F, 23F and additional serotypes 1, 3, 5, 6A, 7F, and 19A). The 2-sided, 95% CIs for the GMCs were constructed by back transformation of the CIs for the mean of the logarithmically transformed assay results computed using the Student t distribution.
Baseline (Visit 1), Day 7 (Visit 4)
Pneumococcal Opsonophagocytic Activity (OPA) Assay Geometric Mean Titers (GMTs) for the 13 Serotypes Relative to 7vPnC / 13vPnC Prevaccination Visit 1 and Postvaccination Visit 5
Lasso di tempo: Baseline (Visit 1), Day 28 (Visit 5)
Antibody geometric mean titers as measured by opsonophagocytic activity (OPA) assay for 13 pneumococcal serotypes (7vPnC serotypes 4, 6B, 9V, 14, 18C, 19F, 23F and additional serotypes 1, 3, 5, 6A, 7F, and 19A). The 2-sided, 95% CIs for the GMTs were constructed by back transformation of the CIs for the mean of the logarithmically transformed assay results computed using the Student t distribution.
Baseline (Visit 1), Day 28 (Visit 5)
Pneumococcal Opsonophagocytic Activity (OPA) Assay Geometric Mean Titers (GMTs) for the 13 Serotypes Relative to MnCC / 13vPnC Prevaccination Visit 1 and Postvaccination Visit 5
Lasso di tempo: Baseline (Visit 1), Day 28 (Visit 5)
Antibody geometric mean titers as measured by opsonophagocytic activity (OPA) assay for 13 pneumococcal serotypes (7vPnC serotypes 4, 6B, 9V, 14, 18C, 19F, 23F and additional serotypes 1, 3, 5, 6A, 7F, and 19A). The 2-sided, 95% CIs for the GMTs were constructed by back transformation of the CIs for the mean of the logarithmically transformed assay results computed using the Student t distribution.
Baseline (Visit 1), Day 28 (Visit 5)
Pneumococcal Opsonophagocytic Activity (OPA) Assay Geometric Mean Titers (GMTs) for the 13 Serotypes Relative to 7vPnC / 13vPnC Prevaccination Visit 1 and Postvaccination Visit 4
Lasso di tempo: Baseline (Visit 1), Day 7 (Visit 4)
Antibody geometric mean titers as measured by opsonophagocytic activity (OPA) assay for 13 pneumococcal serotypes (7vPnC serotypes 4, 6B, 9V, 14, 18C, 19F, 23F and additional serotypes 1, 3, 5, 6A, 7F, and 19A). The 2-sided, 95% CIs for the GMTs were constructed by back transformation of the CIs for the mean of the logarithmically transformed assay results computed using the Student t distribution.
Baseline (Visit 1), Day 7 (Visit 4)
Pneumococcal Opsonophagocytic Activity (OPA) Assay Geometric Mean Titers (GMTs) for the 13 Serotypes Relative to MnCC / 13vPnC Prevaccination Visit 1 and Postvaccination Visit 4
Lasso di tempo: Baseline (Visit 1), Day 7 (Visit 4)
Antibody geometric mean titers as measured by opsonophagocytic activity (OPA) assay for 13 pneumococcal serotypes (7vPnC serotypes 4, 6B, 9V, 14, 18C, 19F, 23F and additional serotypes 1, 3, 5, 6A, 7F, and 19A). The 2-sided, 95% CIs for the GMTs were constructed by back transformation of the CIs for the mean of the logarithmically transformed assay results computed using the Student t distribution.
Baseline (Visit 1), Day 7 (Visit 4)
Comparison of Pneumococcal Immunoglobulin G (IgG) Geometric Mean Concentrations (GMCs) for the 13 Serotypes for 7vPnC / 13vPnC Relative to MnCC / 13vPnC After Vaccination (Visit 5)
Lasso di tempo: Day 28 (Visit 5)
Pneumococcal IgG GMCs measured as Mcg/mL for the 13 pneumococcal serotypes (7vPnC serotypes 4, 6B, 9V, 14, 18C, 19F, 23F and additional serotypes 1, 3, 5, 6A, 7F, and 19A). The 2-sided, 95% CIs for the GMCs were constructed by back transformation of the CIs for the mean of the logarithmically transformed assay results computed using the Student t distribution.
Day 28 (Visit 5)
Comparison of Pneumococcal Immunoglobulin G (IgG) Geometric Mean Concentrations (GMCs) for the 13 Serotypes for 7vPnC / 13vPnC Relative to MnCC / 13vPnC After Vaccination (Visit 4)
Lasso di tempo: Day 7 (Visit 4)
Pneumococcal IgG GMCs measured as Mcg/mL for the 13 pneumococcal serotypes (7vPnC serotypes 4, 6B, 9V, 14, 18C, 19F, 23F and additional serotypes 1, 3, 5, 6A, 7F, and 19A). The 2-sided, 95% CIs for the GMCs were constructed by back transformation of the CIs for the mean of the logarithmically transformed assay results computed using the Student t distribution.
Day 7 (Visit 4)
Comparison of Pneumococcal Opsonophagocytic Activity (OPA) Geometric Mean Titers (GMTs) for the 13 Serotypes for 7vPnC / 13vPnC Relative to MnCC / 13vPnC After Vaccination (Visit 5)
Lasso di tempo: Day 28 (Visit 5)
Antibody geometric mean titers as measured by opsonophagocytic activity (OPA) assay for 13 pneumococcal serotypes (7vPnC serotypes 4, 6B, 9V, 14, 18C, 19F, 23F and additional serotypes 1, 3, 5, 6A, 7F, and 19A). The 2-sided, 95% CIs for the GMTs were constructed by back transformation of the CIs for the mean of the logarithmically transformed assay results computed using the Student t distribution.
Day 28 (Visit 5)
Comparison of Pneumococcal Opsonophagocytic Activity (OPA) Geometric Mean Titers (GMTs) for the 13 Serotypes for 7vPnC / 13vPnC Relative to MnCC / 13vPnC After Vaccination (Visit 4)
Lasso di tempo: Day 7 (Visit 4)
Antibody geometric mean titers as measured by opsonophagocytic activity (OPA) assay for 13 pneumococcal serotypes (7vPnC serotypes 4, 6B, 9V, 14, 18C, 19F, 23F and additional serotypes 1, 3, 5, 6A, 7F, and 19A). The 2-sided, 95% CIs for the GMTs were constructed by back transformation of the CIs for the mean of the logarithmically transformed assay results computed using the Student t distribution.
Day 7 (Visit 4)

Altre misure di risultato

Misura del risultato
Misura Descrizione
Lasso di tempo
Percentage of Participants Reporting Pre-specified Local Reactions Within 4 Days After Vaccination
Lasso di tempo: Baseline up to 4 days after vaccination on Day 1
Local reactions reported using the diary card during the 4-day reactogenicity period after vaccination. Tenderness at injection site scaled as Any (tenderness present) or Significant (present and interfered with limb movement). Redness and swelling at injection site scaled as Any (redness or swelling present); Mild (0.5 centimeters [cm] to 2.0 cm); Moderate (2.5 to 7.0 cm); or Severe (> 7.0 cm). Participants may be represented in >1 category.
Baseline up to 4 days after vaccination on Day 1
Percentage of Participants Reporting Pre-specified Systemic Events Within 4 Days After Vaccination
Lasso di tempo: Baseline up to 4 days after vaccination on Day 1
Systemic events reported using the diary card during the 4-day reactogenicity period after vaccination. Temperature scaled as Fever ≥38 but ≤39 degrees Celsius (C) (mild), >39 but ≤40 degrees C (moderate), or >40 degrees C (severe). Presence of Decreased appetite, Irritability, Increased sleep, Decreased sleep, Rash, and Hives; also scaled as Mild (easily tolerated, minimal discomfort; not interfering with activities), Moderate (sufficiently discomforting to interfere with normal activities), or Severe (may prevent normal activities and require medical intervention).
Baseline up to 4 days after vaccination on Day 1

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Pubblicazioni e link utili

La persona responsabile dell'inserimento delle informazioni sullo studio fornisce volontariamente queste pubblicazioni. Questi possono riguardare qualsiasi cosa relativa allo studio.

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio

1 gennaio 2010

Completamento primario (Effettivo)

1 settembre 2010

Completamento dello studio (Effettivo)

1 settembre 2010

Date di iscrizione allo studio

Primo inviato

16 gennaio 2009

Primo inviato che soddisfa i criteri di controllo qualità

16 gennaio 2009

Primo Inserito (Stima)

19 gennaio 2009

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Stima)

11 novembre 2011

Ultimo aggiornamento inviato che soddisfa i criteri QC

5 ottobre 2011

Ultimo verificato

1 ottobre 2011

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • 6096A1-3016
  • B1851014

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

Prove cliniche su 13-valent Pneumococcal Conjugate Vaccine

Sottoscrivi