Multicenter evaluation of blood‐based biomarkers for the detection of endometriosis and adenomyosis: A prospective non‐interventional study

Objective To evaluate blood‐based biomarkers to detect endometriosis and/or adenomyosis across nine European centers (June 2014–April 2018). Methods This prospective, non‐interventional study assessed the diagnostic accuracy of 54 blood‐based biomarker immunoassays in samples from 919 women (aged 18–45 years) with suspicion of endometriosis and/or adenomyosis versus symptomatic controls. Endometriosis was stratified by revised American Society for Reproductive Medicine stage. Symptomatic controls were “pathologic symptomatic controls” or “pathology‐free symptomatic controls”. The main outcome measure was receiver operating characteristic‐area under the curve (ROC‐AUC) and Wilcoxon P values corrected for multiple testing (q values). Results CA‐125 performed best in “all endometriosis cases” versus “all symptomatic controls” (AUC 0.645, 95% confidence interval [CI] 0.600–0.690, q