PROBLEM TO BE SOLVED: To provide a lyophilized protein formulation which is stable during storage and delivery.SOLUTION: This invention is based on the discovery that a stable lyophilized protein formulation can be prepared using a lyoprotectant (preferably a sugar such as sucrose or trehalose), which lyophilized formulation can be reconstituted to generate a stable reconstituted formulation having a protein concentration which is significantly higher (e.g., about 2-40 times higher, preferably 3-10 times higher and most preferably 3-6 times higher) than the protein concentration in the pre-lyophilized formulation.SELECTED DRAWING: None【課題】貯蔵および輸送において安定な凍結乾燥タンパク質処方を提供することが本発明の目的である。【解決手段】本発明は安定な凍結乾燥タンパク質処方はリオプロテクタント(好ましくはスクロースまたはトレハロースのような糖)を用いて調製され得るという発見に基づくが、該凍結乾燥処方はプレ凍結乾燥処方におけるタンパク質濃度より有意に高い(例えば約2-40倍高い、好ましくは3-10倍高いそして最も好ましくは3-6倍高い)タンパク質濃度を持つ安定な再構成処方を生ずるために再構成され得るものである。【選択図】なし