Serum Mesothelin for Diagnosing Malignant Pleural Mesothelioma: An Individual Patient Data Meta-Analysis

K. Hollevoet, J.B. Reitsma, Jenette Creaney, B.D. Grigoriu, Bruce Robinson, A. Scherpereel, A. Cristaudo, H.I. Pass, K. Nackaerts, J.A.R. Rodriguez Portal, J. Schneider, T. Muley, F. Di Serio, P. Baas, M. Tomasetti, A.J. Rai, J.P. Van Meerbeeck

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    149 Citations (Scopus)

    Abstract

    PurposeMesothelin is currently considered the best available serum biomarker of malignant pleural mesothelioma. To examine the diagnostic accuracy and use of serum mesothelin in early diagnosis, we performed an individual patient data (IPD) meta-analysis.MethodsThe literature search identified 16 diagnostic studies of serum mesothelin, measured with the Mesomark enzyme-linked immunosorbent assay. IPD of 4,491 individuals were collected, including several control groups and 1,026 patients with malignant pleural mesothelioma. Mesothelin levels were standardized for between-study differences and age, after which the diagnostic accuracy and the factors affecting it were examined with receiver operating characteristic (ROC) regression analysis.ResultsAt a common diagnostic threshold of 2.00 nmol/L, the sensitivities and specificities of mesothelin in the different studies ranged widely from 19% to 68% and 88% to 100%, respectively. This heterogeneity can be explained by differences in study population, because type of control group, mesothelioma stage, and histologic subtype significantly affected the diagnostic accuracy. The use of mesothelin in early diagnosis was evaluated by differentiating 217 patients with stage I or II epithelioid and biphasic mesothelioma from 1,612 symptomatic or high-risk controls. The resulting area under the ROC curve was 0.77 (95% CI, 0.73 to 0.81). At 95% specificity, mesothelin displayed a sensitivity of 32% (95% CI, 26% to 40%).ConclusionIn patients suspected of having mesothelioma, a positive blood test for mesothelin at a high-specificity threshold is a strong incentive to urge further diagnostic steps. However, the poor sensitivity of mesothelin clearly limits its added value to early diagnosis and emphasizes the need for further biomarker research. J Clin Oncol 30: 1541-1549. (C) 2012 by American Society of Clinical Oncology
    Original languageEnglish
    Pages (from-to)1541-1549
    JournalJournal of Clinical Oncology
    Volume30
    Issue number13
    DOIs
    Publication statusPublished - 2012

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