Prospective, Observational, Multicentre Study to Confirm the Performance of Molecular Screening for Early Detection of Preeclampsia
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 发起方
- 入组人数
- 7,473
- 试验地点
- 22
- 主要终点
- Validation of the MaiRa Preeclampsia Test for first-trimester screening (9-14 weeks) of EOPE
研究概览
简要总结
Preeclampsia (PE) is a major obstetric complication with severe short- and long-term consequences for both mother and fetus. Early detection is critical to mitigate PE-related morbidity and mortality. Effective screening tools are needed to identify women at risk, enabling timely preventive and therapeutic interventions.
Current screening methods primarily target placental biomarkers like sFLT1 and PlGF, which are limited to short-term predictions near symptom onset. Existing first-trimester assessments that incorporate maternal factors and Doppler metrics remain constrained by low sensitivity (<41%) in compliance with NICE and ACOG guidelines.
Recent advancements in cell free RNA (cf-RNA) analysis have revealed potential in first-trimester PE prediction. Findings from the PREMOM study (NCT04990141) established a molecular profile for early-onset preeclampsia (EOPE) and late-onset preeclampsia (LOPE) through cfRNA analysis, culminating in the development of the MaiRa Preeclampsia Test (Maternal Advanced and Innovative Preeclampsia Risk Assessment), which demonstrated high predictive performance for first- and second-trimester screening.
The current study hypothesizes that the MaiRa Preeclampsia Test is generalizable, maintaining its predictive accuracy in an independent cohort.
详细描述
This multicentre, prospective observational study aims to validate the MaiRa Preeclampsia Test, a molecular screening tool for predicting early-onset preeclampsia (EOPE) and late-onset preeclampsia (LOPE) in the first and second trimesters of pregnancy. The study will evaluate its diagnostic accuracy, including sensitivity, specificity, predictive values, and area under the curve (AUC).
Study Design:
Duration: 40 months
- Recruitment and Sample Collection: 28 months
- Sample Analysis: 32 months
- Follow-Up: 8 months
- Statistical Analysis and Publication: 6 months Participants: 7,473 pregnant women from 12 tertiary hospitals in Spain.
Visits:
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •Signed informed consent approved by the Ethics Committee.
- •Women ≥18 years of age at consent.
- •Single gestation pregnancies with first sample collection (T1) possible between 9 and 14 weeks' gestation.
排除标准
- •Active neoplasm.
- •History of organ or bone marrow transplantation.
- •Maternal transfusion within 8 weeks before sample collection.
- •Evidence of early pregnancy loss at consent.
- •Severe, uncontrolled infections.
- •Other investigator-assessed risks that could compromise participation or data quality.
结局指标
主要结局
Validation of the MaiRa Preeclampsia Test for first-trimester screening (9-14 weeks) of EOPE
时间窗: From the date of enrollment (minimum 9 weeks) until the end of pregnancy (maximum 43 weeks), assessed up to 34 weeks.
Sensitivity, specificity, accuracy, F1-score, positive/negative predictive values, false discovery rate, AUC.
次要结局
- Validation of second-trimester screening (15-26 weeks) for EOPE(From the date of enrollment (minimum 9 weeks) until the end of pregnancy (maximum 43 weeks), assessed up to 34 weeks.)
- Validation of second-trimester screening (15-26 weeks) for LOPE(From the date of enrollment (minimum 9 weeks) until the end of pregnancy (maximum 43 weeks), assessed up to 34 weeks.)