2%) compared with those with intermediate (41.4%)

or early stage disease (50.0%) (P = 0.021). Recorded adverse effects were not more frequent among that third of patients followed prospectively, indicating that an underestimation of adverse events is unlikely. Events related to radiation of nontarget tissues (primarily grade 1/2) included gastrointestinal ulcerations and liver-related events. Gastrointestinal ulceration (3.7% all grades) was grade 3 in five patients (1.5%) and was the cause of death in one patient at 3 months. Regarding liver-related events, elevated bilirubin (all grades) was recorded in 22.6% of patients at baseline, increasing to 48.6% of patients up to day 90 (P < 0.001), with a minority experiencing grade ≥3 events (5.8% up to day 90). A minor increase in the proportion of patients with grade >0 values for international S1P Receptor inhibitor normalized ratio (INR) and platelet levels to day 90 was observed (Table 3). There were no significant differences in the transitions in CTCAE for laboratory values among BCLC stages (Supporting Table 2). All-cause mortality was 0.6% and 6.8% (2 and 22 patients) at 30 and 90 days, respectively. The median overall survival was 12.8 months (95% CI, 10.9-15.7), which did not diminish significantly with increasing age or sex. Survival varied significantly

by ECOG performance status, hepatic function (Child-Pugh class, ascites, and baseline total bilirubin), CP-868596 supplier tumor burden (number of nodules, alpha-fetoprotein), presence of extrahepatic disease, and BCLC disease stage (Table 4). Median survival was significantly better in patients with one to five nodules (16.8 months; 95% CI, 13.6-22.1) compared with

those with more than five nodules (10.0 months; 95% CI, 7.7-11.4; P < 0.001) (Fig. 1); in patients with ECOG 0 (16.9 months; 95% CI, 13.6-19.6) compared with ECOG 1-2 (9.9 months; 95% CI, 7.4-10.9; P < 0.001); in patients without extrahepatic disease compared with those with extrahepatic disease (14.1 months; 95% CI, 11.7-16.8 versus 7.4 months; 95% CI, 4.8-13.1; P = 0.001); and in patients with an INR ≤1.2 compared with those with INR >2 (15.5 months; 95% CI, 12.6-18.4 versus 8.6 months; 95% CI, 7.0-10.9; P < 0.001). Overall survival diminished in patients with portal vein occlusion (branch selleckchem or main) compared with those with patent vessels (10.0 months; 95% CI, 6.5-11.8 versus 15.3 months; 95% CI, 12.4-18.4; P = 0.003), with no significant difference in survival between patent portal vein and branch occlusion (P = 0.124). Reflecting this influence of tumor burden and liver function, the median survival was 24.4 months (95% CI, 18.6-38.1) in patients with BCLC stage A compared with 16.9 months (95% CI, 12.8-22.8) in patients with BCLC stage B and 10.0 months (95% CI, 7.7-10.9) in patients with BCLC stage C (Fig. 1).

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