Stable pharmaceutical formulations and methods of making same are provided. In a general embodiment, the present disclosure provides a method of making a stable pharmaceutical formulation comprising adding one or more vitrifying additives to an aqueous pharmaceutical solution to raise the glass transition temperature of the aqueous pharmaceutical solution. The aqueous pharmaceutical solution can be cooled to a temperature of about −50° C. to about −10° C. The vitrifying additive enhances the formation of a glass or amorphous solid of the aqueous pharmaceutical solution at cryogenic temperatures (−50 to −10° C.), and the pharmaceutical formulation can be thawed to liquid form and administered to a mammalian subject.