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mRECIST response combined with sorafenib‐related adverse events is superior to either criterion alone in predicting survival in HCC patients treated with TACE plus sorafenib

The mRECIST and dermatologic adverse events (AEs) can be used to assess the patient response to transarterial chemoembolization (TACE) and/or sorafenib for hepatocellular carcinoma (HCC). Here, we aimed to combine the two criteria to stratify the prognosis in patients with unresectable HCC receiving TACE plus sorafenib (TACE‐S). In total, 176 consecutive HCC patients treated with TACE‐S were enrolled. CT scans and laboratory tests were conducted pretreatment (at baseline, 5–7 days before the TACE‐S) and post‐treatment (at 1, 2 and 3 months). The radiological response was assessed according to mRECIST. Sorafenib‐related AEs were recorded every 2 weeks after oral administration, and patients with dermatologic AEs of Grade 2 or more were defined as dermatologic responders. The earliest time at which mRECIST and dermatologic responses correlated with survival was 2 months after therapy. The mRECIST‐dermatologic AE combination assessment stratified patients into three different prognoses; responders on both assessments exhibited the longest median overall survival (OS), followed by responders on one assessment and non‐responders on both assessments (30.5, 17.4 and 8.3 months, respectively; p < 0.001). Achieving the highest C‐index, the mRECIST‐dermatologic AE combination showed better performance in predicting survival than either mRECIST or dermatologic AEs alone. Furthermore, the mRECIST‐dermatologic AE combination remained a significant predictor of OS, even when the patients were stratified according to the BCLC stage, ECOG score or alpha‐fetoprotein (AFP) value. This study showed that the combination of mRECIST response and dermatologic AEs is superior to either criterion used alone for predicting the survival of HCC patients treated with TACE‐S.