Primary immunodeficiency


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Inclusion criteria

  • Suspected primary immunodeficiency diagnosed by a consultant immunologist, particularly if familial.
  • Appropriate available diagnostic tests should have ruled out mutations in relevant known genes.
  • All cases must be discussed and approved by the PID-MDT at the recruiting GMC

Exclusion criteria

  • Known genetic cause already identified in proband or family member with similar phenotype.
  • Secondary immunodeficiency likely

Prior genetic testing guidance

– Results should have been reviewed for all genetic tests undertaken, including disease-relevant genes in exome sequencing data. The patient is not eligible if they have a molecular diagnosis for their condition.

– Genetic testing should continue according to routine local practice for this phenotype regardless of recruitment to the project; results of these tests must be submitted via the ‘Genetic investigations’ section of the data capture tool to allow comparison of WGS with current standard testing.

PLEASE NOTE: The sensitivity of WGS compared to current diagnostic genetic testing has not yet been established. It is therefore important that tests which are clinically indicated under local standard practice continue to be carried out.

Prior genetic testing genes

Closing statement

These requirements will be kept under continual review during the main programme and may be subject to change.

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