Conjugate Pneumococcal Vaccine in Ataxia Telangiectasia (AT)

April 10, 2008 updated by: Institute of Child Health

Ataxia Telangiectasia (AT) is an autosomal recessive inherited condition caused by mutations in the ATM gene1. Patients suffer from neuro-degenerative problems, usually commencing in the second year of life, and affecting predominantly the cerebellum. They also develop the characteristic superficial telangiectases. Between 60 and 80% of affected children are immunodeficient. This is associated with deficiency of immunoglobulin A (IgA ) 2, of IgG23 and of antibody responses to pneumococcal polysaccharides4. Patients suffer recurrent sino-pulmonary infections but a recent study suggests poor correlation between immune status and immunological parameters5. If uncontrolled, recurrent pulmonary infections can contribute to the development of chronic lung disease and bronchiectasis. Preventative management includes continuous prophylactic antibiotic treatment in some with the need for replacement immunoglobulin therapy in only a small proportion of cases. Antibiotics have been reasonably effective in this situation but the emergence of resistance amongst community acquired pneumococcal isolates is a cause for concern. Appropriate immunisation strategies may also have a role.

This study is designed to look at antibody responses in a one versus two dose regimen in a cohort of AT patients recruited through the AT Society a national charitable organisation involved in providing support to families with this condition and in fostering education and research in the field.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

30

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United Kingdom
      • London, United Kingdom, WC1N 3JH
        • Great Ormond Street Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

2 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Genetically confirmed diagnosis of AT

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Immunogenicity of vaccine

Secondary Outcome Measures

Outcome Measure
Incidence of adverse reactions to vaccine

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Institute of Child Health

Collaborators

Great Ormond Street Hospital for Children NHS Foundation Trust

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

June 1, 2006

Study Completion (Actual)

March 1, 2008

Study Registration Dates

First Submitted

April 7, 2008

First Submitted That Met QC Criteria

April 10, 2008

First Posted (Estimate)

April 11, 2008

Study Record Updates

Last Update Posted (Estimate)

April 11, 2008

Last Update Submitted That Met QC Criteria

April 10, 2008

Last Verified

April 1, 2008

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 04MI07

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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