• J Andrew Livingston, Kenneth R Hess, Aung Naing, David S Hong, Shreyaskumar Patel, Robert S Benjamin, Joseph A Ludwig, Anthony Conley, Cynthia E Herzog, Pete Anderson, Funda Meric-Bernstam, Razelle Kurzrock, and Vivek Subbiah.
• Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
• Oncotarget. 2016 Sep 27; 7 (39): 64421-64430.

BackgroundWe sought to validate the Royal Marsden Hospital (RMH) and MD Anderson Cancer Center (MDACC) prognostic scoring systems for the selection of bone sarcoma patients for phase I clinical trials and to identify additional risk factors related to survival.Patients And MethodsWe retrospectively reviewed the baseline characteristics and outcomes of 92 bone sarcoma patients who were referred to MDACC's Phase I Clinical Trials Program.ResultsNinety-two patients with Ewing sarcoma (N = 47), osteosarcoma (N = 22), chondrosarcoma (N = 16), and other tumors (N = 7) were evaluated; 78 were enrolled in at least 1 of 43 different phase I trials. The median overall survival (OS) was 8.8 months (95% confidence interval [CI] = 6.8-13.7 months). Independent factors that predicted shorter survival were male sex, >2 metastatic sites, >3 previous therapies, hemoglobin level <10.5 g/dL, platelet count >200 x103/L, creatinine level ≥1.3 mg/dL, and lactate dehydrogenase level >ULN. Patients with good RMH scores (0-1) had longer OS than patients with poor RMH scores (2-3) (HR = 5.8, 95% CI = 2.9-11.0; P < 0.0001), as did patients with low MDACC scores (0-1) as compared to patients with higher MDACC scores (2-4) (HR = 3.2, 95% CI = 1.9-5.6; P < 0.0001).ConclusionThe RMH prognostic score can be used to predict the OS of bone cancer patients referred for phase I trials. The MDACC score added no value to the RMH score and therefore does not have a role in assessment of patients with bone tumors. Patients with advanced bone sarcomas should be considered for phase I trials.

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