Method for preparing a polyvalent-immunoglobulin concentrate

摘要

The present application relates to a method for preparing a polyvalent-immunoglobulin concentrate, with a view to using same in therapeutics, from an initial blood plasma solution or an immunoglobulin-enriched plasma fraction, including the steps of: removing the protein contaminants by means of precipitation in caprylic acid so as to obtain a protease-free solution; and separating the protease-free solution by means of chromatography in a fluidized bed, said method making it possible to obtain a human polyvalent immunoglobulin concentrate at a yield of more than 4.5 grams of immunoglobulins per liter of blood plasma used.