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Completed

NCT Number: NCT01193335

Study Evaluating a 13-valent Pneumococcal Conjugate Vaccine in Preterm Compared to Term Infants.

The purpose of this study is to describe the safety, tolerability, and immunogenicity of a 2,3,4 and 12 month schedule of the 13-valent pneumococcal conjugate vaccine when given to preterm infants with concomitant vaccines, compared to infants born at term.There will be a follow-up phase to assess the persistence of the antibody response at 24 and 36 months of age.

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Key information

Conditions

13-valent Pneumococcal Vaccine Female Urogenital Diseases and Pregnancy Complications Immunization Obstetric Labor Complications Obstetric Labor, Premature Pregnancy Complications Premature Birth Safety Urogenital Diseases

Age range

42 day–98 day

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

Hanna Czajka Indywidualna Praktyka Specjalistyczna Lekarska, Krakow, Poland

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Healthy Infants between 42 and 98 days of age (approximately 2 months) at the time of enrollment.

Exclusion criteria

  • Previous vaccination with pneumococcal vaccine,Haemophilus influenzae type B (Hib) conjugate vaccine, meningococcal type C conjugate vaccine, or diphtheria, tetanus, pertussis, or poliovirus vaccines.
  • Previous anaphylactic reaction or allergy to any vaccine
  • Contraindication to vaccination
  • Known or suspected immune deficiency or immune suppression
  • Major known congenital malformation or serious chronic disorder
  • Significant neurological disorder
  • Participation to another study

Treatment and study plan

13-valent Pneumococcal Conjugate Vaccine

Biological

13-valent pneumococcal conjugate vaccine will be administered at 2, 3, 4 and 12 months of age.

Primary outcomes

  1. Percentage of Participants Achieving Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibody Level Greater Than or Equal to (>=) 0.35 Microgram Per Milliliter (mcg/mL) 1 Month After Infant Series

    Time frame: 1 month after the infant series

    Percentage of participants achieving predefined antibody threshold >=0.35 mcg/mL along with the corresponding 95 percent (%) confidence interval (CI) for the 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (serotypes 1, 3, 5, 6A, 7F, and 19A) were presented. Exact 2-sided CI based on the observed proportion of participants. Here 'n' signifies participants with a determinate IgG concentration to the given serotype for each arm, respectively.

  2. Geometric Mean Concentration (GMC) for Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibody 1 Month After the Infant Series

    Time frame: 1 month after the infant series

    Antibody geometric mean concentration (GMC) for 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A) were presented. GMC (13vPnC) and corresponding 2-sided 95% CIs were evaluated. GMCs were calculated using all participants with available data for the specified blood draw. CIs for GMC were back transformations of a CI based on the Student t distribution for the mean logarithm of the concentrations.

  3. Percentage of Participants Reporting Pre-Specified Local Reactions Within 7 Days After Dose 1 Infant Series

    Time frame: Within 7 days after Dose 1 of the infant series

    Local reactions were reported using an electronic diary. Tenderness was scaled as Any (tenderness present); Mild (hurts if gently touched with no crying); Moderate (hurts if gently touched with crying); Severe (causes limitation of limb movement). Redness and swelling were scaled as Any (redness or swelling present); Mild (0.5 centimeters [cm] to 2.0 cm); Moderate (2.5 to 7.0 cm); Severe (>7.0 cm). Participants may be represented in more than 1 category.

  4. Percentage of Participants Reporting Pre-Specified Local Reactions Within 7 Days After Dose 2 Infant Series

    Time frame: Within 7 days after Dose 2 of the infant series

    Local reactions were reported using an electronic diary. Tenderness was scaled as Any (tenderness present); Mild (hurts if gently touched with no crying); Moderate (hurts if gently touched with crying); Severe (causes limitation of limb movement). Redness and swelling were scaled as Any (redness or swelling present); Mild (0.5 centimeters [cm] to 2.0 cm); Moderate (2.5 to 7.0 cm); Severe (>7.0 cm). Participants may be represented in more than 1 category.

  5. Percentage of Participants Reporting Pre-Specified Local Reactions Within 7 Days After Dose 3 Infant Series

    Time frame: Within 7 days after Dose 3 of the infant series

    Local reactions were reported using an electronic diary. Tenderness was scaled as Any (tenderness present); Mild (hurts if gently touched with no crying); Moderate (hurts if gently touched with crying); Severe (causes limitation of limb movement). Redness and swelling were scaled as Any (redness or swelling present); Mild (0.5 centimeters [cm] to 2.0 cm); Moderate (2.5 to 7.0 cm); Severe (>7.0 cm). Participants may be represented in more than 1 category.

  6. Percentage of Participants Reporting Pre-Specified Local Reactions Within 7 Days After Toddler Dose

    Time frame: Within 7 days after the toddler dose

    Local reactions were reported using an electronic diary. Tenderness was scaled as Any (tenderness present); Mild (hurts if gently touched with no crying); Moderate (hurts if gently touched with crying); Severe (causes limitation of limb movement). Redness and swelling were scaled as Any (redness or swelling present); Mild (0.5 centimeters [cm] to 2.0 cm); Moderate (2.5 to 7.0 cm); Severe (>7.0 cm). Participants may be represented in more than 1 category.

  7. Percentage of Participants Reporting Pre-Specified Systemic Events Within 7 Days After Dose 1 Infant Series

    Time frame: Within 7 days after Dose 1 of the infant series

    Systemic events (fever >=38 degrees Celsius [C], decreased appetite, increased sleep, and irritability or decreased sleep) and use of antipyretic medication were reported using an electronic diary. Decreased appetite was scaled as Any; Mild (loss of appetite but no decreased oral intake); Moderate (decreased oral intake); Severe (refusal to feed). Increased sleep was scaled as Any; Mild (increased or prolonged sleeping bouts); Moderate (slightly subdued interfering with daily activity); Severe (disabling not interested in usual daily activity). Irritability or decreased sleep was scaled as Any; Mild (easily consolable); Moderate (requiring increased attention); Severe (inconsolable; crying that cannot be comforted). Participants may be represented in more than 1 category.

  8. Percentage of Participants Reporting Pre-Specified Systemic Events Within 7 Days After Dose 2 Infant Series

    Time frame: Within 7 days after Dose 2 of the infant series

    Systemic events (fever >=38 degrees Celsius [C], decreased appetite, increased sleep, and irritability or decreased sleep) and use of antipyretic medication were reported using an electronic diary. Decreased appetite was scaled as Any; Mild (loss of appetite but no decreased oral intake); Moderate (decreased oral intake); Severe (refusal to feed). Increased sleep was scaled as Any; Mild (increased or prolonged sleeping bouts); Moderate (slightly subdued interfering with daily activity); Severe (disabling not interested in usual daily activity). Irritability or decreased sleep was scaled as Any; Mild (easily consolable); Moderate (requiring increased attention); Severe (inconsolable; crying that cannot be comforted). Participants may be represented in more than 1 category.

  9. Percentage of Participants Reporting Pre-Specified Systemic Events Within 7 Days After Dose 3 Infant Series

    Time frame: Within 7 days after Dose 3 of the infant series

    Systemic events (fever >=38 degrees Celsius [C], decreased appetite, increased sleep, and irritability or decreased sleep) and use of antipyretic medication were reported using an electronic diary. Decreased appetite was scaled as Any; Mild (loss of appetite but no decreased oral intake); Moderate (decreased oral intake); Severe (refusal to feed). Increased sleep was scaled as Any; Mild (increased or prolonged sleeping bouts); Moderate (slightly subdued interfering with daily activity); Severe (disabling not interested in usual daily activity). Irritability or decreased sleep was scaled as Any; Mild (easily consolable); Moderate (requiring increased attention); Severe (inconsolable; crying that cannot be comforted). Participants may be represented in more than 1 category.

  10. Percentage of Participants Reporting Pre-Specified Systemic Events Within 7 Days After Toddler Dose

    Time frame: Within 7 days after the toddler dose

    Systemic events (fever >=38 degrees Celsius [C], decreased appetite, increased sleep, and irritability or decreased sleep) and use of antipyretic medication were reported using an electronic diary. Decreased appetite was scaled as Any; Mild (loss of appetite but no decreased oral intake); Moderate (decreased oral intake); Severe (refusal to feed). Increased sleep was scaled as Any; Mild (increased or prolonged sleeping bouts); Moderate (slightly subdued interfering with daily activity); Severe (disabling not interested in usual daily activity). Irritability or decreased sleep was scaled as Any; Mild (easily consolable); Moderate (requiring increased attention); Severe (inconsolable; crying that cannot be comforted). Participants may be represented in more than 1 category.

  11. Percentage of Participants With Adverse Events (AEs) or Serious Adverse Events (SAEs): Infant Series

    Time frame: Dose 1 up to 1 month after Dose 3 (infant series)

    An AE was any untoward medical occurrence in a participant who received vaccine without regard to possibility of causal relationship. SAE: an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial/prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.

  12. Percentage of Participants With Adverse Events (AEs) or Serious Adverse Events (SAEs): After Infant Series

    Time frame: 1 Month after Dose 3 of the infant series up to toddler dose

    An AE was any untoward medical occurrence in a participant who received vaccine without regard to possibility of causal relationship. SAE: an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial/prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.

  13. Percentage of Participants With Adverse Events (AEs) or Serious Adverse Events (SAEs): Toddler Dose

    Time frame: Toddler dose up to 1 Month after toddler dose

    An AE was any untoward medical occurrence in a participant who received vaccine without regard to possibility of causal relationship. SAE: an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial/prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.

  14. Percentage of Participants With Adverse Events (AEs) or Serious Adverse Events (SAEs): 1-Year Follow-up After Toddler Dose

    Time frame: 1 month after toddler dose up to 1-year follow-up

    An AE was any untoward medical occurrence in a participant who received vaccine without regard to possibility of causal relationship. SAE: an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial/prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.

  15. Percentage of Participants With Adverse Events (AEs) or Serious Adverse Events (SAEs): 2-Year Follow-up After Toddler Dose

    Time frame: 1-year follow-up after toddler dose to 2-year follow-up after toddler dose

    An AE was any untoward medical occurrence in a participant who received vaccine without regard to possibility of causal relationship. SAE: an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial/prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.

Secondary outcomes

  1. Geometric Mean Fold Rise (GMFR) for Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibody From Toddler Pre-Dose to 1 Month After Toddler Dose

    Time frame: Before 13vPnC Toddler Dose (pre-vaccination), 1 month after 13vPnC Toddler Dose

    GMFR for the 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (serotypes 1, 3, 5, 6A, 7F, and 19A) from before 13vPnC toddler dose to 1 month after 13vPnC toddler dose were computed using the logarithmically transformed assay results. CIs for GMFR were back transformations of confidence levels based on the Student t distribution for the mean logarithm of the fold rises. GMFRs were calculated using all participants with available data from both before 13vPnC toddler dose and after 13vPnC toddler dose blood draws.

  2. Percentage of Participants Achieving Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibody Level >=0.35 mcg/mL 1 Month After Infant Series: Group 1A, 1B, 1C

    Time frame: 1 Month After Infant Series

    Percentage of participants achieving predefined antibody threshold >=0.35 mcg/mL along with the corresponding 95 % CI for the 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (serotypes 1, 3, 5, 6A, 7F, and 19A) were presented. Exact 2-sided CI based on the observed proportion of participants. Here 'n' signifies participants with a determinate IgG concentration to the given serotype for each arm, respectively.

  3. Percentage of Participants Achieving Serotype-specific Pneumococcal IgG Antibody Level ≥0.35 mcg/mL 1 Month After the Toddler Dose

    Time frame: 1 month after the toddler dose

    Percentage of participants achieving predefined antibody threshold >=0.35 mcg/mL along with the corresponding 95% CI for the 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (serotypes 1, 3, 5, 6A, 7F, and 19A) were presented. Exact 2-sided CI based on the observed proportion of participants. Here 'n' signifies participants with a determinate IgG antibody concentration to the given serotype for each arm, respectively.

  4. Percentage of Participants Achieving Serotype-specific Pneumococcal IgG Antibody Level >=0.35 mcg/mL 1 Month After Toddler Dose: Group 1A, 1B, 1C

    Time frame: 1 month after the toddler dose

    Percentage of participants achieving predefined antibody threshold >=0.35 mcg/mL along with the corresponding 95% CI for the 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (serotypes 1, 3, 5, 6A, 7F, and 19A) were presented. Exact 2-sided CI based on the observed proportion of participants.

  5. Geometric Mean Concentration (GMC) for Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibody Before Toddler Dose

    Time frame: Before Toddler Dose (pre-vaccination)

    Geometric mean concentration (GMC) for 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A) were presented. GMC (13vPnC) and corresponding 2-sided 95% CI were evaluated. GMCs were calculated using all participants with available data for the specified blood draw. CIs were calculated as back transformations of a CI based on the Student t distribution for the mean logarithm of the concentrations.

  6. Geometric Mean Concentration (GMC) for Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibody 1 Month After Toddler Dose

    Time frame: 1 Month After Toddler Dose

    Geometric mean concentration (GMC) for 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A) were presented. GMC (13vPnC) and corresponding 2-sided 95% CI were evaluated. GMCs were calculated using all participants with available data for the specified blood draw. CIs were calculated as back transformations of a CI based on the Student t distribution for the mean logarithm of the concentrations. Here 'n' signifies participants with a determinate IgG concentration to the given serotype for each arm, respectively.

  7. Geometric Mean Concentration (GMC) for Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibody Persistence 1 Year After Toddler Dose

    Time frame: 1 Year After Toddler Dose

    The persistence of the antibody response induced by 13vPnC was described by geometric mean concentration (GMC) for 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A). GMC (13vPnC) and corresponding 2-sided 95% CIs were evaluated. GMCs were calculated using all participants with available data for the specified blood draw. CIs were calculated as back transformations of a CI based on the Student t distribution for the mean logarithm of the concentrations.

  8. Geometric Mean Concentration (GMC) for Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibody Persistence 2 Years After Toddler Dose

    Time frame: 2 Years After Toddler Dose

    The persistence of the antibody response induced by 13vPnC was described by geometric mean concentration (GMC) for 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A). GMC (13vPnC) and corresponding 2-sided 95% CIs were evaluated. GMCs were calculated using all participants with available data for the specified blood draw. CIs were calculated as back transformations of a CI based on the Student t distribution for the mean logarithm of the concentrations.

  9. Geometric Mean Concentration (GMC) for Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibody 1 Month After Infant Series: Group 1A, 1B, 1C

    Time frame: 1 Month After Infant Series

    Geometric mean concentration (GMC) for 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A) were presented. GMC (13vPnC) and corresponding 2-sided 95% CI were evaluated. GMCs were calculated using all participants with available data for the specified blood draw. CIs were calculated as back transformations of a CI based on the Student t distribution for the mean logarithm of the concentrations. Here 'n' signifies participants with a determinate IgG concentration to the given serotype for each arm, respectively.

  10. Geometric Mean Concentration (GMC) for Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibody Before Toddler Dose: Group 1A, 1B, 1C

    Time frame: Before Toddler Dose (pre-vaccination)

    Geometric mean concentration (GMC) for 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A) were presented. GMC (13vPnC) and corresponding 2-sided 95% CI were evaluated. GMCs were calculated using all participants with available data for the specified blood draw. CIs were calculated as back transformations of a CI based on the Student t distribution for the mean logarithm of the concentrations. Here 'n' signifies participants with a determinate IgG concentration to the given serotype for each arm, respectively.

  11. Geometric Mean Concentration (GMC) for Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibody 1 Month After Toddler Dose: Group 1A, 1B, 1C

    Time frame: 1 Month After Toddler Dose

    Geometric mean concentration (GMC) for 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A) were presented. GMC (13vPnC) and corresponding 2-sided 95% CI were evaluated. GMCs were calculated using all participants with available data for the specified blood draw. CIs were calculated as back transformations of a CI based on the Student t distribution for the mean logarithm of the concentrations. Here 'n' signifies participants with a determinate IgG concentration to the given serotype for each arm, respectively.

  12. Geometric Mean Concentration (GMC) for Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibody Persistence 1 Year After Toddler Dose: Group 1A, 1B, 1C

    Time frame: 1 Year After Toddler Dose

    The persistence of the antibody response induced by 13vPnC was described by geometric mean concentration (GMC) for 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A). GMC (13vPnC) and corresponding 2-sided 95% CIs were evaluated. GMCs were calculated using all participants with available data for the specified blood draw. CIs were calculated as back transformations of a CI based on the Student t distribution for the mean logarithm of the concentrations.

  13. Geometric Mean Concentration (GMC) for Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibody Persistence 2 Years After Toddler Dose: Group 1A, 1B, 1C

    Time frame: 2 Years After Toddler Dose

    The persistence of the antibody response induced by 13vPnC was described by geometric mean concentration (GMC) for 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A). GMC (13vPnC) and corresponding 2-sided 95% CIs were evaluated. GMCs were calculated using all participants with available data for the specified blood draw. CIs were calculated as back transformations of a CI based on the Student t distribution for the mean logarithm of the concentrations.

  14. Serotype-Specific Pneumococcal Opsonophagocytic Activity (OPA) Geometric Mean Titer (GMT) 1 Month After Infant Series

    Time frame: 1 Month After Infant Series

    Antibody-mediated serum OPA against the 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A) was measured centrally using a pneumococcal OPA assay. Results were expressed as OPA titers. OPA titers were logarithmically transformed for analysis; geometric means calculated and expressed as geometric mean titers (GMTs).

  15. Serotype-Specific Pneumococcal Opsonophagocytic Activity (OPA) Geometric Mean Titer (GMT) Before Toddler Dose

    Time frame: Before the toddler dose (pre-vaccination)

    Antibody-mediated serum OPA against the 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A) was measured centrally using a pneumococcal OPA assay. Results were expressed as OPA titers. OPA titers were logarithmically transformed for analysis; geometric means calculated and expressed as geometric mean titers (GMTs).

  16. Serotype-Specific Pneumococcal Opsonophagocytic Activity (OPA) Geometric Mean Titer (GMT) 1 Month After Toddler Dose

    Time frame: 1 Month After Toddler Dose

    Antibody-mediated serum OPA against the 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A) was measured centrally using a pneumococcal OPA assay. Results were expressed as OPA titers. OPA titers were logarithmically transformed for analysis; geometric means calculated and expressed as geometric mean titers (GMTs).

  17. Serotype-Specific Pneumococcal Opsonophagocytic Activity (OPA) Geometric Mean Titer (GMT) 1 Year After Toddler Dose

    Time frame: 1 Year After Toddler Dose

    Antibody-mediated serum OPA against the 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A) was measured centrally using a pneumococcal OPA assay. Results were expressed as OPA titers. OPA titers were logarithmically transformed for analysis; geometric means calculated and expressed as geometric mean titers (GMTs).

  18. Serotype-Specific Pneumococcal Opsonophagocytic Activity (OPA) Geometric Mean Titer (GMT) 2 Years After Toddler Dose

    Time frame: 2 Years After Toddler Dose

    Antibody-mediated serum OPA against the 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A) was measured using a pneumococcal OPA assay. Results were expressed as OPA titers. OPA titers were logarithmically transformed for analysis; geometric means calculated and expressed as geometric mean titers (GMTs).

  19. Percentage of Participants With OPA Titer >= Lower Limit of Quantitation (LLOQ) 1 Month After Infant Series

    Time frame: 1 Month After Infant Series

    Percentage of participants achieving OPA titer >=LLOQ for 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A) determined in blood samples of all participants was presented. Exact 2-sided CI based on observed proportion of participants. LLOQ for each serotype: 1=18; 3=12; 4=21; 5=29; 6A=37; 6B=43; 7F=210; 9V=345; 14=35; 18C=31; 19A=18; 19F=48; 23F=13.

  20. Percentage of Participants With OPA Titer >= Lower Limit of Quantitation (LLOQ) Before Toddler Dose

    Time frame: Before Toddler Dose (pre-vaccination)

    Percentage of participants achieving OPA titer >=LLOQ for 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A) determined in blood samples of all participants was presented. Exact 2-sided CI based on observed proportion of participants. LLOQ for each serotype: 1=18; 3=12; 4=21; 5=29; 6A=37; 6B=43; 7F=210; 9V=345; 14=35; 18C=31; 19A=18; 19F=48; 23F=13.

  21. Percentage of Participants With OPA Titer >= Lower Limit of Quantitation (LLOQ) 1 Month After Toddler Dose

    Time frame: 1 Month After Toddler Dose

    Percentage of participants achieving OPA titer >=LLOQ for 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A) determined in blood samples of all participants was presented. Exact 2-sided CI based on observed proportion of participants. LLOQ for each serotype: 1=18; 3=12; 4=21; 5=29; 6A=37; 6B=43; 7F=210; 9V=345; 14=35; 18C=31; 19A=18; 19F=48; 23F=13.

  22. Percentage of Participants With OPA Titer >= Lower Limit of Quantitation (LLOQ) 1 Year After Toddler Dose

    Time frame: 1 Year After Toddler Dose

    Percentage of participants achieving OPA titer >=LLOQ for 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A) determined in blood samples of all participants was presented. Exact 2-sided CI based on observed proportion of participants. LLOQ for each serotype: 1=18; 3=12; 4=21; 5=29; 6A=37; 6B=43; 7F=210; 9V=345; 14=35; 18C=31; 19A=18; 19F=48; 23F=13.

  23. Percentage of Participants With OPA Titer >= Lower Limit of Quantitation (LLOQ) 2 Years After Toddler Dose

    Time frame: 2 Years After Toddler Dose

    Percentage of participants achieving OPA titer >=LLOQ for 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A) determined in blood samples of all participants was presented. Exact 2-sided CI based on observed proportion of participants. LLOQ for each serotype: 1=18; 3=12; 4=21; 5=29; 6A=37; 6B=43; 7F=210; 9V=345; 14=35; 18C=31; 19A=18; 19F=48; 23F=13.

Sponsors and collaborators

Lead sponsor

Pfizer

Industry

Registry information

Official study title

A Phase 4, Open-label Trial Describing The Safety, Tolerability, And Immunogenicity Of The 13 Valent Pneumococcal Conjugate Vaccine In Preterm Compared To Term Infants

Important dates

Study start
2010
Primary completion
2014
Study completion
2014
First posted
Sep 1, 2010
Registry last updated
May 11, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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