Neonatal Immunization With Pneumococcal Conjugate Vaccine in Papua New

Status Completed

Clinical Trial Summary

The National Health Plan 2001-2010 calls for investigation of the feasibility of pneumococcal vaccines for Papau New Guinea. The Papua New Guinea (PNG) Institute of Medical Research, the Telethon Institute for Child Health Research and the Department of Paediatrics, University of Western Australia will collaborate to examine very closely the safety of neonatal vaccination, particularly with regard to impact on the development of immunity and response to other vaccines given to infants. This study will also provide a unique opportunity for training of PNG and Australian scientists in both countries.

Clinical Trial Description

In order to obtain the earliest possible protection against invasive pneumococcal disease, achieve optimal coverage and reduce burden of early carriage, neonatal pneumococcal conjugate vaccine (PCV) immunization needs to be considered. This study in the PNG highlands will enrol 312 infants at birth, who will be randomised to receive PCV either at 1-2-3 months (infant schedule according to PNG national EPI schedule) or 0-1-2 months of age (neonatal schedule) or receive only routine immunizations (controls). Blood samples will be taken at birth-2-3-4 months of age, pre- and post-pneumococcal polysaccharide booster (23vPPV) at 9-10 months of age (to assess immune memory) and at 18 months at study completion. Carriage will be assessed weekly for the first month of life and at regular intervals thereafter. There will be ongoing surveillance for respiratory and other diseases throughout the study. In addition to serotype-specific IgG, we will examine IgG avidity, IgG subclasses, mucosal IgA and T-cell cytokine responses to PCV and pneumococcal protein antigens. To ensure immunological safety, particularly for neonatal PCV, immune responses to concomitant vaccines and viral and environmental antigens will also be examined as well as overall T-cell maturation. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Prevention

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00219401
Study type	Interventional
Source	Papua New Guinea Institute of Medical Research
Contact
Status	Completed
Phase	Phase 2
Start date	May 2005
Completion date	May 2010

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Neonatal Immunization With Pneumococcal Conjugate Vaccine in Papua New Guinea

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms