Regorafenib Combined with Other Systemic Therapies: Exploring Promising Therapeutic Combinations in HCC
Alessandro Granito1,2, Sara Marinelli1, Antonella Forgione1,2
1Division of Internal Medicine, Hepatobiliary and Immunoallergic Diseases, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy.
Abstract:
Regorafenib was the first drug to demonstrate a survival benefit as a second-line agent after sorafenib failure in patients with unresectable hepatocellular carcinoma (HCC). Recent studies have shown that its mechanism of action is not only limited to its very broad spectrum of inhibition of angiogenesis, tumor proliferation, spread, and metastasis, but also to its immunomodulatory properties that have favorable effects on the very intricate role that the tumor microenvironment plays in carcinogenesis and tumor growth. In this review, we discuss rationale and evidence supporting regorafenib efficacy in HCC and that led to its approval as a second-line treatment, after sorafenib failure. We also discuss the evidence from clinical practice studies that confirm the results previously achieved in clinical trials. Finally, we analyze the potential role of regorafenib in emerging combined treatment approach with immunotherapy strategies using immune checkpoint blockade and its potential extension to patient categories not included in the registrative study.
Insights
Regorafenib offers survival benefits for advanced liver cancer (hepatocellular carcinoma) patients progressing after sorafenib. Its broad anti-cancer effects and immune modulation in the tumor microenvironment support its use and potential combination with immunotherapy.
Area of Science:
- Oncology
- Pharmacology
Background:
- Hepatocellular carcinoma (HCC) is a primary liver cancer with limited treatment options.
- Sorafenib is a standard first-line treatment, but resistance and progression are common.
- Regorafenib emerged as a crucial second-line therapy following sorafenib failure.
Purpose of the Study:
- To review the rationale and evidence supporting regorafenib's efficacy in HCC.
- To discuss clinical practice data confirming trial results.
- To explore regorafenib's potential in combination with immunotherapy.
Main Methods:
- Review of clinical trials and real-world evidence on regorafenib in HCC.
- Analysis of regorafenib's mechanism of action, including anti-angiogenic and immunomodulatory effects.
- Exploration of emerging treatment strategies involving regorafenib and immunotherapy.
Main Results:
- Regorafenib demonstrated a survival benefit in patients with unresectable HCC after sorafenib failure.
- Its mechanism involves broad inhibition of tumor growth, angiogenesis, and metastasis.
- Immunomodulatory properties impacting the tumor microenvironment contribute to its efficacy.
Conclusions:
- Regorafenib is an established second-line treatment for advanced HCC post-sorafenib.
- Its multifaceted mechanism supports its clinical benefit.
- Future research should focus on combining regorafenib with immunotherapy for broader patient benefit.
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