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Combination of anti-angiogenic molecular targeted therapy and anti- programmed cell death -1 immune checkpoint inhibitor (ICI) therapy has shown promising antitumor activity in multiple cancer types, including patients with advanced hepatocellular carcinoma (HCC). The safety profile and optimal dosage of targeted therapy should be carefully evaluated by clinical trials. Regorafenib is one of the standard second-line systemic therapy for advanced HCC. The present study will test the safety and efficacy of combination of regorafenib and tislelizumab, an anti-programmed cell death-1 ICI. The investigator(s) thus hypothesized that combination of tislelizumab and regorafenib is a tolerable regimen and may improve treatment efficacy for patients with advanced HCC. The present study will explore safety and efficacy of the combination of tislelizumab plus regorafenib as first-line therapy for advanced HCC.
Combination of ICI with anti-angiogenic therapy has been most extensively studies in patients with renal cell carcinoma, for whom both ICI and anti-angiogenic therapy have proven anticancer activity as single-agent therapy. Objective response rate of 30-60% was observed, far exceeding the response rate of single-agent therapy (around 20%). Results from several early-phase trials of this type of combination also support the potential anti-tumor synergy between ICI and anti-angiogenic therapy (multi-kinase inhibitors or monoclonal antibody targeting the vascular endothelial growth factor signaling pathway) in advanced HCC. Further studies should focus on identifying the optimal targeted agent and its biologically effective dosage to achieve the best therapeutic window for the treatment of HCC.
Current evidence indicated the following:
1. Combination of ICI and anti-angiogenic therapy in advanced HCC may have better anti-tumor efficacy compared with single-agent therapy;
2. The immune modulatory effects of the multi-kinase inhibitors may be achieved at dosage lower than recommended for single-agent therapy in the clinic; using this lower dosage when combined with ICI may lower the treatment-related adverse events.
3. Objective response of 40% to 50% was recently reported in a phase 1 study of regorafenib plus nivolumab for patients with advanced gastric or colorectal cancer was reported recently (Fukuoka S, et al. American Society Of Clinical Oncology 2019, abstract#2522). Grade 3 or greater treatment-related adverse events were found in 27% of subjects who received regorafenib 80 mg per day and in 44% of patients who received regorafenib 120 mg per day. Therefore, regorafenib 80 mg/day was defined as the optimal dosage in combination with nivolumab.
Advanced Hepatocellular Carcinoma
Tislelizumab+regorafenib for part 1;Tislelizumab+regorafenib for group 1 of part 2; Placebo+regorafenib for group 2 of part 2.
Not yet recruiting
National Taiwan University Hospital
Published on BioPortfolio: 2019-12-06T00:24:52-0500
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Cysts of one of the parts of the mediastinum: the superior part, containing the trachea, esophagus, thoracic duct and thymus organs; the inferior middle part, containing the pericardium; the inferior anterior part containing some lymph nodes; and the inferior posterior part, containing the thoracic duct and esophagus.
The great peninsula of southwest Asia comprising most of the present countries of the Middle East. It has been known since the first millennium B.C. In early times it was divided into Arabia Petraea, the northwest part, the only part ever conquered, becoming a Roman province; Arabia Deserta, the northern part between Syria and Mesopotamia; and Arabia Felix, the main part of the peninsula but by some geographers restricted to modern Yemen. (From Webster's New Geographical Dictionary, 1988, p63)
Collection of pleomorphic cells in the caudal part of the anterior horn of the lateral ventricle, in the region of the olfactory tubercle, lying between the head of the caudate nucleus and the anterior perforated substance. It is part of the so-called ventral striatum, a composite structure considered part of the basal ganglia.
A large vessel supplying the whole length of the small intestine except the superior part of the duodenum. It also supplies the cecum and the ascending part of the colon and about half the transverse part of the colon. It arises from the anterior surface of the aorta below the celiac artery at the level of the first lumbar vertebra.
Either of a pair of compound bones forming the lateral (left and right) surfaces and base of the skull which contains the organs of hearing. It is a large bone formed by the fusion of parts: the squamous (the flattened anterior-superior part), the tympanic (the curved anterior-inferior part), the mastoid (the irregular posterior portion), and the petrous (the part at the base of the skull).
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