PROBLEM TO BE SOLVED: To provide a new osteoarthritis preventive therapeutic agent.SOLUTION: An osteoarthritis prevention and/or therapeutic agent comprises 3-phosphoadenosine-5-phosphosulfate or salt thereof as an active ingredient.COPYRIGHT: (C)2015,JPO&INPIT【課題】新たな変形性関節症予防治療薬の提供。【解決手段】3’-ホスホアデノシン-5’-ホスホ硫酸又はその塩を有効成分とする変形性関節症予防及び/又は治療薬。【選択図】なし