Minipooled-IVIG in Primary Immunodeficiency Disease

Primary immunodeficiency diseases (PID) are a heterogeneous group of inherited disorders of the immune system, predisposing individuals to recurrent infections, allergy, autoimmunity, and malignancies. Clinical descriptions have already been made for more than 200 PIDs, for which over 150 forms of PID have been molecularly characterized .

A population prevalence of diagnosed PID in the United States at approximately 1 in 1,200 persons.

A part from local registration in some centres there is no national registry of PID in Egypt, and hence, the prevalence of these disorders in the investigator's population is still unknown .

An increasing number of PID are recognized, and effective treatments are possible. Early use of prophylactic antibiotics and replacement immunoglobulin can prevent significant end organ damage and improve long quality of life in these patients .

Immunoglobulin G (IgG) is an essential plasma derived medicine that is lacking in developing countries .IgG shortages leave immune deficient patients without treatment, exposing them to devastating recurrent infections from local pathogens. A simple and practical method for producing IgG from normal plasma collected in developing countries is needed to provide better, faster access to IgG for patients .

Magdy EL-Ekiaby, et al 2010 introduce the concept of small-scale ("minipool") plasma processing methods implementable with minimum infrastructural requirements. They developed viral inactivation and protein purification technologies in single-use equipment to prepare virally safe solvent/detergent-filtered (S/D-F) plasma Producing a 90%pure immunoglobulin fraction in disposable single-use devices for transfusion as well as minipool S/D-F cryoprecipitate to treat bleeding disorders.