Key clinical point: Modified Response Evaluation Criteria in Solid Tumors (mRECIST )-determined objective response (OR) and early tumor shrinkage (ETS) may serve as independent prognostic factors for overall survival (OS) in patients with advanced hepatocellular carcinoma (HCC) on sorafenib monotherapy.
Main finding: OR assessed by mRECIST (adjusted hazard ratio [aHR], 0.32; P < .001) and ETS (aHR, 0.44; P < .001) were independent prognostic factors for OS. A longer median OS was shown by responders vs nonresponders (30.3 months vs 11.4 months; P < .001) and by patients with ETS ≥20% vs those with ETS <20% (22.1 months vs 11.4 months; P < .001).
Study details: This was a post hoc analysis of data from the phase 2 SORAMIC trial and included 115 patients with advanced HCC receiving sorafenib monotherapy.
Disclosures: The study was sponsored by Sirtex Medical and Bayer Healthcare. Some of the authors declared receiving personal fees and research grants from various sources including Bayer and Sirtex.
Source: Öcal O et al. Cancer Imaging. 2022 Jan 4. doi: 10.1186/s40644-021-00439-x .