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Safety of sitagliptin in treatment of hepatocellular carcinoma in chronic liver disease patients

Abstract : Background & Aims : Systemic therapies for hepatocellular carcinoma (HCC) treatment have limited efficacy and poor safety. Dipeptidyl peptidase-4 inhibitors were initially developed and approved as treatment for type 2 diabetes, yet oral administration of sitagliptin has recently been shown to improve naturally occurring tumour immunity in animal models of HCC. Methods : We conducted a phase Ib clinical trial to evaluate the impact of a pre-operative 3-week DPP4 inhibitor (sitagliptin) treatment in HCC patients undergoing liver resection. The primary objective was to evaluate the safety of a sitagliptin treatment in each of the three groups of patients, according to an escalating dosage of sitagliptin (100, 200 and 600 mg/d). Secondary objectives included the assessment of DPP4 activity, cytokine expression in plasma samples and circulating immune populations. Results : Fourteen patients were included and analysed. In all three dose groups, no severe adverse event related to sitagliptin was reported. A significant inhibition of DPP4 activity was observed upon sitagliptin treatment, which prevented the N-terminal truncation of CXCL10, leading to a mobilization of circulating CD8+ T cells and eosinophils. Immunochemistry analysis showed a lymphoid infiltration in all tumour samples with the presence of a population of CXCR3+ T cells in all but one of the tumours. Positivity for CXCL10 (IP10) and CCR3 in tumour and/or stroma cells was found in all resection pieces. Conclusion : In summary, sitagliptin can be used safely in patients with chronic liver disease and HCC, and could be tested in phase 2 trial, as an adjuvant in combination with others drugs, for the treatment of HCC patients.
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Submitted on : Monday, October 18, 2021 - 6:26:24 PM
Last modification on : Friday, August 5, 2022 - 11:55:04 AM
Long-term archiving on: : Wednesday, January 19, 2022 - 9:51:28 PM


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Clémence Hollande, Jeremy Boussier, Estelle Mottez, Vincent Bondet, Tan Phuc Buivan, et al.. Safety of sitagliptin in treatment of hepatocellular carcinoma in chronic liver disease patients. Liver Cancer International, 2021, pp.Online Version of Record before inclusion in an issue. ⟨10.1002/lci2.36⟩. ⟨pasteur-03384283⟩



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