The emergence of systemic therapies has ushered in an era of chemo-diversity for hepatocellular carcinoma, in which drug sequencing is pivotal for maximizing outcomes. Among available agents, lenvatinib is notable for its potent anti-angiogenic and immunomodulatory properties. This review proposes a structured building-block strategy for optimizing sequential drug therapy, conceptualizing each treatment line as a block that contributes cumulatively to survival, and grounding the discussion in clinical insights from lenvatinib administration. We comprehensively evaluated clinical trials, preclinical investigations, and real-world data to identify actionable approaches that enhance tolerability and prolong progression-free survival, with a particular focus on mitigating adverse events, optimizing dosing schedules, and integrating with transarterial therapies. Five refinements emerge as central to maximizing therapeutic benefit: early detection and classification of adverse events, use of supportive agents such as L-carnitine and branched-chain amino acids, structured telephone follow-up, optimization of dosing schedules, including weekend-off regimens, and strategic combination with transarterial therapy. In addition, rationale-based sequencing and clinically relevant switching criteria that extend beyond RECIST are summarized. Collectively, these measures increase the height of each therapeutic block, thereby contributing to cumulative survival within the building-block strategy. In the current era of chemo-diversity, lenvatinib remains a cornerstone agent when accompanied by these clinical refinements. The review provides a practical and conceptual framework for enhancing efficacy through structured sequencing, proactive adverse-event mitigation, and synergistic locoregional strategies, with broad applicability to real-world clinical practice.
Hepatocellular carcinoma (HCC) frequently presents as advanced stage with poor prognosis and high mortality. Systemic treatment is the treatment of choice for advanced disease. In 2007, the first multi-kinase inhibitor (MKI) sorafenib was approved and shown to modestly prolong overall survival (OS). The progress of systemic therapy has been slow afterwards until 2018 when lenvatinib, another MKI, was shown to be non-inferior to sorafenib on median OS as the first-line therapy for HCC. Since then, remarkable progress has been achieved on the treatment of advanced HCC, including the development of second-line targeted treatment, including regorafenib, cabozantinib and ramucirumab from 2017 to 2019. A growing focus has been placed on immune checkpoint inhibitors (ICIs) targeting programmed cell death-1 (PD-1), its ligand PD-L1, and cytotoxic T-lymphocyte-associated protein 4. These ICIs have proven their potency in treating HCC as both initial and subsequent line of therapy. At present, both regimens of atezolizumab combined with bevacizumab, as well as the combination of tremelimumab and durvalumab, are recommended as the first-line treatments based on positive phase III clinical trials. With the advancement of ICIs, it is anticipated that the role of MKIs in the treatment of HCC will evolve. In this article, lenvatinib, one of the most commonly used MKIs in HCC, is chosen to be reviewed.
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A 60-year-old man diagnosed with unresectable hepatocellular carcinoma (HCC) presented to the hospital with pain in the perineal region. He had been taking lenvatinib every day for 2 months after he was diagnosed with HCC with metastases to the lymph node, small bowel mesentery, and retroperitoneal space. Enhanced abdominal computed tomography revealed mild elevation in intensity in the perineal subcutaneous tissue with subcutaneous emphysema. The patient was diagnosed with Common Terminology Criteria for Adverse Events grade 3, skin ulceration of stage IV with full-thickness skin loss and tissue necrosis in the muscular layer. The patient was taken off the medication with prescription of antibiotics, and after 3 weeks, the skin has fully recovered. This is the first report of an HCC patient who presented with a skin ulceration of stage IV after lenvatinib treatment. We recommend stopping the medication immediately and changing to alternative treatments with appropriate supportive care.
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Background/Aims Lenvatinib was recently proven to be non-inferior to sorafenib in treating unresectable hepatocellular carcinoma (HCC) in a phase-3 randomized controlled trial. In this study, we investigated whether the response to lenvatinib was affected by tumor immunogenicity.
Methods Between May 2019 and April 2020, nine patients with intermediate-to-advanced HCC, who were treated with lenvatinib after liver biopsy, were enrolled. Immunohistochemical staining and multi-color flow cytometry were performed on specimens obtained from liver biopsy.
Results Among the nine patients enrolled, four showed objective responses (complete responses+partial responses). Immunohistochemical staining for CD3, CD68, and programmed cell death ligand 1 (PD-L1) demonstrated that patients with objective responses showed marked infiltration of T cells and PD-L1-expressing macrophages in intra-tumoral and peri-tumoral tissues compared to those without objective responses. A significant difference in the numbers of infiltrated T cells, both in the intra-tumoral (P<0.01) and peri-tumoral regions (P<0.05), were identified between responders and non-responders. Regarding the number of infiltrated macrophages, no significant difference was found between the responders and non-responders, although the number of PD-L1-expressing tumor-associated macrophages was significantly higher in responders than that in non-responders (P<0.05).
Conclusions Tumor immunogenicity, as indicated by T cell and PD-L1-positive macrophage infiltration, affects lenvatinib response in unresectable HCC.
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