Ig NextGen 10% in Patients With Primary Immune Deficiency (PID)

Inclusion Criteria: * Clinical diagnosis of PID * = or \>6 month use of Intragam P at three- or four-weekly intervals * = or \>6 month history of IgG trough levels of ≥ 5 g/L Exclusion Criteria: * Newly diagnosed PID within six months prior to Screening * Known selective IgA deficiency or antibodies to IgA * Immunosuppressive treatment other than topical and/ or inhaled steroids and/ or low dose oral steroids * Protein-losing enteropathies, or kidney diseases * History of malignancies of lymphoid cells * Any of the following laboratory results at Screening: * Serum Creatinine \> 1.5 times the upper normal limit (UNL) * AST or ALT concentration \> 2.5 times the UNL * Albumin \< 25 g/L