To provide a product and a method for treating Crohn's disease.SOLUTION: A method for treating Crohn's disease in a subject who needs treatment of Crohn's disease includes administering an anti-IL-23 antibody to a subject at an amount and an interval of: a. 15 to 54 mg by every 0.5 to 1.5 months； b. 55 to 149 mg by every 1.5 to 4.5 months； c. 150 to 299 mg by every 4 to 8 months； or d. 300 to 1100 mg by every 4 to 12 months.SELECTED DRAWING: None【課題】クローン病を治療するための生成物及び方法の提供。【解決手段】ａ．０．５～１．５ヶ月毎に１５～５４ｍｇ、ｂ．１．５～４．５ヶ月毎に５５～１４９ｍｇ、ｃ．４～８ヶ月毎に１５０～２９９ｍｇ、またはｄ．４～１２ヶ月毎に３００～１１００ｍｇの量及び間隔で、対象に抗ＩＬ－２３抗体を投与することを含む、クローン病の治療を必要とする前記対象におけるクローン病の治療方法。【選択図】なし
