Almost 60 years have elapsed since freeze-drying/lyophilization was introduced on an industrial scale. Developed initially for the rapid delivery of human blood plasma on the World’s battle fields, lyophilization gained its credentials with the massive production of penicillin under the guidance of the late Nobel Laureate Sir Ernst Boris Chain.

Freeze drying is a widely used method to stabilise protein pharmaceuticals. The stability of proteins and the biological activity can be influenced by several factors, which may lead to conformational changes and to denaturation, aggregation or absorption to surfaces.