目的 利用智能樣本管理系統(tǒng)對(duì)早期藥物臨床試驗(yàn)中發(fā)生血樣采集時(shí)間超窗的原因進(jìn)行統(tǒng)計(jì)分析，提出改進(jìn)措施。方法 以首都醫(yī)科大學(xué)宣武醫(yī)院和中國人民解放軍總醫(yī)院I期臨床研究中心在2019年5月—2021年10月開展的23個(gè)早期藥物臨床試驗(yàn)中藥動(dòng)學(xué)血樣采集相關(guān)數(shù)據(jù)為研究對(duì)象，統(tǒng)計(jì)血樣采集時(shí)間超窗的發(fā)生情況，并進(jìn)行原因分析。結(jié)果 共納入23項(xiàng)臨床試驗(yàn)，共計(jì)911例健康志愿者，總采血次數(shù)34 096次，血樣采集時(shí)間超窗發(fā)生101次，發(fā)生率為0.30%。血樣采集時(shí)間超窗的原因分別為采血困難、采血管負(fù)壓不足、受試者未遵守方案、研究人員因素等，其中采血困難是主要原因（51.49%）。結(jié)論 提高研究人員操作技能，使用智能樣本管理系統(tǒng)等措施可以減少血樣采集時(shí)間超窗的發(fā)生，提高臨床試驗(yàn)質(zhì)量。

Objective To analyze the causes of beyond the specified time range of blood sample collection in early phase clinical trial based on the intelligent sample management system and propose improvement measures. Methods The data of blood sample collection in 23 early phase clinical trials were carried out by Phase I Clinical Research Center of Xuanwu Hospital Capital Medical University and Chinese PLA General Hospital from May 2019 to October 2021. The blood samples beyond the specified time range were counted, and the reasons were analyzed. Results There were 911 participants involved in 23 clinical trials, the total numbers of blood sample collection were 34 096 times, and the number of over time window was 101 (0.30%). The reasons were mainly difficulty in blood collection, insufficient negative pressure in blood collection tubes, subject non-compliance with protocol, and research staff factors. And difficulty in blood collection was the main reason (51.49%). Conclusion Improving investigators operational skills and using intelligent sample management system can reduce the occurrence of beyond the specified time range of blood sample collection, and improve the quality of clinical trial.

R965.2

北京市醫(yī)院管理中心“青苗”計(jì)劃專項(xiàng)經(jīng)費(fèi)資助項(xiàng)目（QMS20200811）；首都科技領(lǐng)軍人才項(xiàng)目（Z191100006119017）；北京市醫(yī)院管理中心“登峰”計(jì)劃專項(xiàng)經(jīng)費(fèi)資助項(xiàng)目（DFL20190803）