NCT01443416

Brief Summary

This is a study to evaluate an alternative booster for pneumococcal conjugate vaccination (PCV) for children at 12 months of age. Currently in the UK, 3 doses of a vaccine called Prevenar 13 (PCV-13), which contains 13 pneumococcal serotypes attached to a carrier protein called CRM197, are given to children at 2, 4 and 12 months of age. There is some evidence that a vaccine called Synflorix (PHiD-CV) may be at least as good as the currently used vaccine when used as an alternative vaccine at 12 months of age. Although PHiD-CV contains only 10 serotypes, there is evidence that it generates cross-reactive antibodies against two of the three additional serotypes included in PCV-13 which might be enough to protect children against disease caused by these two serotypes. Furthermore, previous studies have shown that PHiD-CV confers protection against a common otitis media pathogen in children called nontypeable H. influenzae (NTHi) by attachment to a carrier protein called Protein D, which is derived from NTHi. In addition, the use of a carrier protein, which is not closely related to an antigen included in any coadministered or previously administered routine vaccine minimises the risk of interference related to it. The investigators aim to recruit 168 healthy children at the age of 12 months who have already received two doses of PCV-13 according to the UK routine immunisation schedule at 2 and 4 months of age. Participants will then be randomised to receive a booster dose of either PCV-13 or PHiD-CV at 12 months of age. Three visits will take place at their parents' home and will involve a blood test followed by a dose of PCV-13 or PHiD-CV on visit 1, and a blood test on each of the visits 2 (1 month after visit 1) and 3 (1 year after visit 1).

Trial Health

80
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
178

participants targeted

Target at P25-P50 for phase_3

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 27, 2011

Completed
2 days until next milestone

First Posted

Study publicly available on registry

September 29, 2011

Completed
6 months until next milestone

Study Start

First participant enrolled

April 1, 2012

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2013

Completed
Last Updated

November 9, 2015

Status Verified

November 1, 2015

Enrollment Period

1.3 years

First QC Date

September 27, 2011

Last Update Submit

November 6, 2015

Conditions

Keywords

pneumococcal conjugate vaccineinvasive pneumococcal diseasevaccinationchildren

Outcome Measures

Primary Outcomes (1)

  • Proportions of participants who have IgG concentrations ≥0.35mcg/ml for 14 pneumococcal serotypes following vaccination with either Prevenar or Synflorix

    To demonstrate non-inferiority (10% level) of a booster dose of PCV-10 compared to a booster dose of PCV-13 for proportion of participants who have serotype-specific IgG concentrations ≥0.35mcg/ml for the PHiD-CV serotypes (1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F, 23F) 1 month following booster vaccination.

    One month after a 12 month booster vaccination

Study Arms (2)

13-valent pneumococcal conjugate vaccine

EXPERIMENTAL

12 month booster dose of Prevenar

Biological: 13-valent pneumococcal conjugate vaccine

10-valent pneumococcal conjugate vaccine

EXPERIMENTAL

12 month booster dose of Synflorix

Biological: 10-valent pneumococcal conjugate vaccine

Interventions

The vaccine will be given to 12 month old children who have had 2 doses of Prevenar at 2 and 4 months of age

13-valent pneumococcal conjugate vaccine

The vaccine will be given to 12 month old children who have had 2 doses of Prevenar at 2 and 4 months of age.

10-valent pneumococcal conjugate vaccine

Eligibility Criteria

Age12 Months - 13 Months
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Aged 12 months (-2 weeks to +6 weeks) at time of enrolment.
  • Have received two doses of PCV-13 at less than 6 months of age with a gap of at least 6 weeks between the two vaccinations.
  • Have received all primary vaccines according to the UK routine immunisation schedule (up to, but not including, 12 months of age).
  • Available for the entire study period and whose parent/legal guardian can be reached by telephone.
  • Healthy children as determined by medical history and physical examination, done by a study nurse (and/or study doctor if required, depending on the medical history of the participant and physical assessment), and judgment of the investigator.
  • Parent/legal guardian must be able to complete all relevant study procedures during study participation.

You may not qualify if:

  • Previous receipt of pneumococcal vaccine other than the 13-valent pneumococcal conjugate vaccine (Prevenar 13®, Pfizer).
  • Receipt of the routine 12 month immunisations (PCV13 (3rd dose), combined Haemophilus influenzae type b and serogroup C meningococcal glyco-conjugate vaccine (Hib-MenC) or measles, mumps and rubella vaccine (MMR)).
  • A previous anaphylactic reaction to any vaccine or vaccine-related component.
  • Contraindication to vaccination with pneumococcal conjugate vaccine.
  • Bleeding diathesis or condition associated with prolonged bleeding time that would contraindicate intramuscular injection.
  • Known or suspected immune deficiency or suppression.
  • History of culture-proven invasive disease caused by S. pneumoniae.
  • Major known congenital malformation or serious chronic disorder.
  • Significant neurologic disorder or history of seizures including febrile seizure, or significant stable or evolving disorders such as cerebral palsy, encephalopathy, hydrocephalus, or other significant disorder.
  • Receipt of blood products or gamma-globulin (including hepatitis B immunoglobulin and monoclonal antibodies; e.g., Synagis B).
  • Parents who plan to move out of the geographical area where the study would be conducted.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Oxford Vaccine Group

Oxford, United Kingdom

Location

Related Publications (1)

  • Truck J, Kelly S, Jawad S, Snape MD, Voysey M, Pollard AJ. Differences in Immunization Site Pain in Toddlers Vaccinated With Either the 10- or the 13-Valent Pneumococcal Conjugate Vaccine. Pediatr Infect Dis J. 2018 Apr;37(4):e103-e106. doi: 10.1097/INF.0000000000001894.

MeSH Terms

Interventions

10-valent pneumococcal conjugate vaccine

Study Officials

  • Andrew Pollard

    University of Oxford

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 27, 2011

First Posted

September 29, 2011

Study Start

April 1, 2012

Primary Completion

August 1, 2013

Last Updated

November 9, 2015

Record last verified: 2015-11

Locations