Regulations for Organization and Operation of Human Research Ethics Review Board Article 16

The IRB shall keep the project review report, audit report, interim report, final report and other relevant information of a research project for three years after the completion of the project, so that they can be retrieved by the central competent authority of the relevant industry at any time.
中文原文 人體研究倫理審查委員會組織及運作管理辦法第16條
審查會應保存計畫審查、查核、期中及期末報告等相關資料至計畫結束後三年,並供中央目的事業主管機關隨時調閱。

English translation for reference only; the Chinese text prevails. Not legal advice.