PRIMARY PRODUCT/SERVICE CODE TO: B537, DESCRIPTION: CENTRAL DATA COLLECTION CENTER (CDCC), WESTAT

这份合同的目的是通过以下方式增加前列腺癌、肺癌、结直肠癌和卵巢癌筛查试验(PLCO)和国家肺筛查试验(NLST)资源的价值：1)继续对参与者进行额外5年的跟踪(2016-2021年)；2)更新主要暴露数据并收集更多数据；3)收集更多临床数据；4)大幅增加累积癌症事件的数量；5)加强试验评估筛查对癌症死亡率的长期影响的能力；以及6)允许继续有机会收集更多暴露数据和/或生物显微镜。

The purpose of this contract is to increase the value of the Prostate, Lung, Colorectal and Ovarian Cancer Screening Trial (PLCO) and National Lung Screening Trial (NLST) resources by: 1) continuing the follow-up of participants for an additional 5-year period (2016-2021); 2) updating key exposure data and collecting additional data; 3) collecting additional clinical data; 4) substantially increasing the number of accrued incident cancer; 5) strengthening the trials’ abilities to evaluate the long-term effects of screening on cancer mortality; and, 6) allowing for a continued opportunity to collect additional exposure data and/or biospecimens.