The present invention pertains to a method for producing a medicinal product comprising a biologically active protein comprising the steps of providing an aqueous composition comprising a solvent, the biologically active protein and between 20% w/w and 60% w/w of a non-polymeric sugar, freezing the composition, thereby forming at least one frozen body comprising the solvent in frozen form, putting the frozen body in a drying apparatus while being carried by a support, the support comprising one or more restraining elements that define one or more boundaries of the support, wherein at most 30% of the surface of the body is contiguous with the one or more restraining elements, reducing the pressure in the drying apparatus below atmospheric pressure, providing heat to the body in order to sublimate the frozen solvent of the body and obtain a dried body. The invention also pertains to a product obtainable by this method.
