Comparison of Prognostic Genomic Predictors in Colorectal Cancer. e60778

• Published in: PloS one 2013-04, Vol.8 (4)
• Main Authors: Park, Yun-Yong, Lee, Sung Sook, Lim, Jae Yun, Kim, Sang Cheol, Kim, Sang Bae, Sohn, Bo Hwa, Chu, In-Sun, Oh, Sang Cheul, Park, Eun Sung, Jeong, Woojin
• Format: Article
• Language: English
• ISSN: 1932-6203
• DOI: 10.1371/journal.pone.0060778

Background Although several prognostic genomic predictors have been identified from independent studies, it remains unclear whether these predictors are actually concordant with respect to their predictions for individual patients and which predictor performs best. We compared five prognostic genomic predictors, the V7RHS, the ColoGuideEx, the Meta163, the OncoDX, and the MDA114, in terms of predicting disease-free survival in two independent cohorts of patients with colorectal cancer. Study Design Using original classification algorithms, we tested the predictions of five genomic predictors for disease-free survival in two cohorts of patients with colorectal cancer (n = 229 and n = 168) and evaluated concordance of predictors in predicting outcomes for individual patients. Results We found that only two predictors, OncoDX and MDA114, demonstrated robust performance in identifying patients with poor prognosis in 2 independent cohorts. These two predictors also had modest but significant concordance of predicted outcome (r>0.3, P