The evaluation of this large series of HCC patients allowed us to: confirm the low sensitivity (54%) of AFP in the diagnosis of HCC and its prognostic value, albeit limited, being tumor size, female sex (intriguingly enough), Child-Pugh score, and TNM staging independent predictors.
Background. Liver transplantation cures hepatocellular carcinoma (HCC) if within conventional selection criteria. Expanded criteria are elusive. Loco-regional treatments pursue tumor downstaging from outside Milan criteria to within criteria. No trial investigated HCC-downstaging strategy to expand transplant eligibility. Methods. This multi-center trial aimed at comparing successfully downstaged HCC followed by transplantation vs. non-transplant therapies. Eligible patients had good liver function (Child-Pugh A-B7), HCC beyond Milan, 5-year estimated post-transplant survival ≥50%, no macrovascular or extrahepatic spread. Only partial-complete responses according to modified-RECIST were randomized 1:1 after 3 months observation period, during which sorafenib was allowed. Co-endpoints were survival and timeto-tumor event. We used Kaplan-Meier method, log-rank test, Cox regression for intention-to-treat analysis. Survival benefit was the difference between groups mean survival time. Organ allocation policy changed over time and limited patients' accrual to 4 years. After 4 additional years conditional power calculation estimated the probability that the final results would be statistically significant in the remaining study, given the data observed. ClinicalTrials.gov NCT01387503. Findings. 74 patients were enrolled between March 2011 to March 2015: 29 dropped-out pre-randomization. Downstaging median duration was 6 months (1-17). Success-rate was 73%. Progression during observation was 17%. 45 patients were randomized: 23 transplanted vs. 22 controls. Median followup was 71 months (IQR 60-85). 5-year overall survival was 77.5% (95%CI 61.9-97.1%) in transplants vs. 31.2% (95%CI: 16.6-58.5%) in controls (Cox hazard ratio [HR] 0.22, 95%CI: 0.08-0.61; p=0.004). 5-year tumor eventfree survival was 76.8 (95%CI: 60.8-96.9%) vs. 18.3% (95%CI: 7.1-47.0%) in controls (HR: 0.14, 95%CI: 0.05-0.38; p<0001). 5-year survival-benefit favored transplantation by 14.5 months (95%CI: 3.6-25.3; p=0.009). The trial retained a conditional power of 98.6%. Interpretation. After effective and sustained downstaging of eligible HCCs beyond Milan criteria, liver transplantation is superior to nontransplant therapies. Post-downstaging tumor response should contribute to HCC transplant criteria expansion. Funding. Italian Ministry of Health
Although patients with HCC and CP class B liver function have poorer outcomes than those with CP class A function, data suggest that patients with CP class B liver function can tolerate treatment and may still benefit from sorafenib.
M.I.) and mreig1@clinic.cat (M.R.)
Funding informationInstituto de Salud Carlos III, Grant/Award Regorafenib is one option for second-line treatment of hepatocellular carcinoma (HCC), improving overall survival (OS) of sorafenib-tolerant patients who develop progression. We aim to evaluate the safety and outcomes of regorafenib as second-line treatment for HCC recurrence after liver transplantation (LT). This is a | 3177 IAVARONE Et Al.
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