Outcome and management of patients with hepatocellular carcinoma who achieved complete response to immunotherapy-based systemic therapy

Bernhard Scheiner, Beodeul Kang, Lorenz Balcar, Iuliana Pompilia Radu, Florian P. Reiter, Gordan Adžić, Jiang Guo, Xu Gao, Xiao Yuan, Long Cheng, Joao Gorgulho, Michael Schultheiss, Frederik Peeters, Florian Hucke, Najib Ben Khaled, Ignazio Piseddu, Alexander Philipp, Friedrich Sinner, Antonio D’Alessio, Katharina PomejAnna Saborowski, Melanie Bathon, Birgit Schwacha-Eipper, Valentina Zarka, Katharina Lampichler, Naoshi Nishida, Pei Chang Lee, Anja Krall, Anwaar Saeed, Vera Himmelsbach, Giulia Tesini, Yi Hsiang Huang, Caterina Vivaldi, Gianluca Masi, Arndt Vogel, Kornelius Schulze, Michael Trauner, Angela Djanani, Rudolf Stauber, Masatoshi Kudo, Neehar D. Parikh, Jean François Dufour, Juraj Prejac, Andreas Geier, Bertram Bengsch, Johann von Felden, Marino Venerito, Arndt Weinmann, Markus Peck-Radosavljevic, Fabian Finkelmeier, Jeroen Dekervel, Fanpu Ji, Hung Wei Wang, Lorenza Rimassa, David J. Pinato, Mohamed Bouattour, Hong Jae Chon, Matthias Pinter

Risultato della ricerca: Contributo su rivistaArticolo in rivistapeer review

Abstract

Background&Aims: The outcome of patients with hepatocellular carcinoma (HCC) who achieved complete response (CR) to immune-checkpoint-inhibitor (ICI)-based systemic therapies is unclear. Approach&Results: Retrospective study of patients with HCC who had CR according to mRECIST to ICI-based systemic therapies from 28 centers in Asia, Europe, and the United States. Of 3933 patients with HCC treated with ICI-based non-curative systemic therapies, 174 (4.4%) achieved CR according to mRECIST (CR-mRECIST) and 97 (2.5%) had CR according to RECISTv1.1 (CR-RECISTv1.1) as well. The mean age of the total cohort (male, 85%; BCLC-C, 70%) was 65.9±9.8 years. The majority (83%) received ICI-based combination therapies. Median follow-up was 32.2 (95%CI, 29.9-34.4) months. One- and 3-year overall survival (OS) rates were 98% and 86%. One- and 3-year recurrence-free survival (RFS) rates were excellent in patients with CR-mRECIST-only and CR-RECISTv1.1 (78% and 55%; 70% and 42%). Among patients who discontinued ICIs for reasons other than recurrence, those who received immunotherapy for ≥6 months after first mRECIST CR had a longer RFS than those who discontinued immunotherapy earlier (p=0.008). Of 9 patients who underwent curative surgical conversion therapy, 8 (89%) had pathological CR (CRRECISTv1.1, n= 2/2; CR-mRECIST-only, n= 6/7). Conclusion: OS and RFS of patients with CR-mRECIST-only and CR-RECISTv1.1 were excellent, and 6 of 7 patients with CR-mRECIST-only who underwent surgical conversion therapy had pathological CR. Despite potential limitations, these findings support the use of mRECIST in the context of immunotherapy for clinical decision-making. When considering ICI discontinuation, treatment for at least 6 months beyond CR seems advisable.

Lingua originaleInglese
Numero di articolo10.1097/HEP.0000000000001163
RivistaHepatology
DOI
Stato di pubblicazionePubblicato - 2024

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