PROSTATE, LUNG, COLORECTAL AND OVARIAN CANCER SCREENING TRIAL

这项研究是在1992年秋天由NCI资助的。1994年初开始登记进入试验阶段，1995年10月开始全面登记。PLCO试验是一项双臂随机试验，其中148,000人将接受筛查或常规治疗。犹他大学将招收13000名研究对象。1万800人将在犹他大学的GCRC进行筛查，2800人将在爱达荷州博伊西的卫星地点进行筛查。截至1999年4月1日，已登记11,745名受试者，预计将于1999年9月完成登记。在接下来的五年中，将比较两组（接受或未接受筛查的）所研究的癌症发病率。这一阶段的研究才刚刚开始。

This study was funded by the NCI in the autumn of 1992. Enrollment into the pilot phase began in early 1994 and full-scale enrollment was initiated in October of 1995. The PLCO trial is two-armed randomized trial in which 148,000 individuals will receive either screening or usual care. The University of Utah will enroll 13,000 research subjects. Ten thousand eight hundred will be screened at the University of Utah's GCRC and 2,800 will be screened at a satellite location in Boise, Idaho. As of April 1, 1999, 11,745 subjects have been enrolled and enrollment is expected to be completed by September of 1999. Over the next five years the incidents of the cancers under study in the two groups (screened or not screened) will be compared. This phase of the study is just beginning.