In/exclusion criteria of the SIMcal study

In order to be eligible to participate in the SIMcal study, a subject must meet al of the following criteria: 1. Informed consent for participation in the ESID registry. 2. Fulfill the ESID Registry Clinical Criteria for 'selective IgM deficiency', demanding a serum IgM level <2SDs below age-adjusted means in children and adults with normal IgG and IgA serum levels and absence of clinical signs suggesting a T-cell defect, and – if determined ...

Protocol of the SIMcal study

You can download the protocol here.

Summary of the SIMcal study

Rationale: The European Society for Immunodeficiencies (ESID) defines selective IgM deficiency (sIgMdef) as a serum IgM level below 2 SDs of normal with normal levels of serum IgA, IgG and IgG subclasses, normal vaccine responses and absence of T-cell defects (http://www.esid.org). In many papers that report on primary sIgMdef, the definition of sIgMdef is not met. Primary selective IgM deficiency is reported to be associated with a wide range...