TRIAL OF CALCIUM SUPPLEMENTATION IN PREGNANCY

本服务合同的目的是提供一个设施， 血清、血浆和尿液的储存、监测和分发 从双盲，随机临床试验中收集的补充 钙用于预防先兆子痫（CPEP）在怀孕期间， 五个临床中心 预计在两年内， 孕妇将被纳入本研究。 血液和尿液样本 将在基线和早期（26 - 29）从研究参与者中收集 妊娠晚期（妊娠26周） 怀孕 还将在诊断时采集样本， 先兆子痫和相关病症。 实验室分析将 在NICHD选定的实验室对来自 在终止妊娠后不久选择的研究参与者。

The purpose of this service contract is to provide a facility for the storage, monitoring and distribution of the serum, plasma, and urine collected from the double-blind, randomized clinical trial of supplemental calcium for the prevention of preeclampsia (CPEP) during pregnancy from five clinical centers. It is expected during a two year period that 4,500 pregnant women will be enrolled in the study. Blood and urine specimens will be collected from study participants at baseline and early (26-29 weeks gestation) and late (26 weeks gestation) in the third trimester of pregnancy. Samples will also be collected at the time of diagnosis of preeclampsia and related conditions. Laboratory analyses will be performed at laboratories selected by the NICHD on the samples from selected study participants soon after the termination of pregnancy.