Real World Data of Nivolumab in advanced hepatocellular carcinoma (HCC) –multi-centric and retrospective study

Mariana  Sardinha,  Medical  Oncology  Department –Centro  Hospitalar  Universitário  de  Lisboa  Central,  Lisbon, Portugal; Emanuel Cadavez, Medical -Centro Hospitalar de Trás-os-Montes e Alto Douro, Vila-Real, Portugal;Miguel Esperança Martins, Medical Oncology –Centro Hospitalar Universitário Lisboa Norte, Lisbon, Portugal;Maria João Ramos, Medical Oncology -Centro Hospitalar do Porto, Porto, Portugal;João Gramaça, Medical Oncology -Centro Hospitalar Barreiro Montijo, Lisbon, Portugal;José Presa, Gastroenterology -Unidade de Hepatologia-CHTMAD;Paulo Carrola,Gastroenterology -Unidade de Hepatologia-CHTMAD;Inês Pinho, Gastroenterology -Unidade de Hepatologia-CHTMAD;Sónia Carvalho, Gastroenterology -Unidade de Hepatologia-CHTMAD;Miguel Moura, Gastroenterology –Centro Hospitalar Universitário Lisboa Norte, Lisbon, Portugal; Diana Simão -Medical Oncology–Centro Hospitalar Universitário Lisboa Central, Lisbon, Portugal;Ana Sofia Spencer -Medical Oncology–Centro Hospitalar Universitário Lisboa Central, Lisbon, Portugal;Ana Filipa Reis -Medical Oncology –Centro Hospitalar Universitário Lisboa Central, Lisbon, Portugal;Filipe Calinas –Gastroenterology –Centro Hospitalar Universitário Lisboa Central, Lisbon, Portugal;Rita Saraiva, Gastroenterology –Centro Hospitalar Universitário Lisboa Central, Lisbon, Portugal;Patrícia Winckler, Medical Oncology –Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal;Frederico Filipe, Medical Oncology -Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal;Ricardo da Luz, Medical Oncology –Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal

Type your new text here.

ABSTRACT
Background: Multi-tyrosine kinase inhibitors(TKIs)were until recently, the only available drugs to treat HCC.  However,  their  use was  often limited  due  to  the  adverse  effects profile. For  this  unmet  need, nivolumaburged  asa second-line  treatment  for  patients  with  advanced  HCC and  functional  hepatic reserve, who progressed to or did not tolerate TKIs. Although the phase III clinical trial did not achieve its primary endpoint, durable responses were seen. Thus, this study aims to evaluate the safety profile of nivolumab in HCC in a real-world setting. Method: Retrospective and multicenter study of advanced HCC treated with nivolumab between January 2017 and December 2020in 5 tertiary hospitals. SPSS was used for data analysis. Results: Twenty-sixpatients were included, with a median age of 60 years (61-24 years). Cirrhosis was present in 17 patients (65%) and extra-hepatic involvement in 10 (37%). According to C-P score, at the start of nivolumab, 19 (73%) and 7 (27%) patients were A and B score, respectively. Nivolumab was 1st, 2ndand 3rdline in 3 patients, 17 and in 6 patients, respectively. Treatment related adverse eventswere seen in 16 patients (59%), 3 grade 3 (14%) and 1 grade 4 (bleeding) event. The most common adverse events  were  asthenia,  hepatic  and gastrointestinal toxicity.   Fifteen  deaths  (58%)  were  observed.  The median overall survival(OS)was 101 [36-178], 182[121–188] and 195weeks [87-209], forthe1st, 2ndand 3rdline treatment.A C-P score of A at the start of nivolumab was related with superior OS (P=0.014).The medianfollow-up time was 159 weeks. Conclusion: The survival of patients with advanced HCC treated with nivolumab was related to C-Pscore at the start of treatment. Nivolumab is an option to consider with a favorable safety profile. Prospective studies are warranted.
INTRODUCTION
The management of hepatocellular carcinoma (HCC) is hampered by the presence of underlyingliver diseaseand until recently,multi-tyrosine kinase inhibitors(TKIs)were the only available drugs totreat HCC.  However,  their  usewas  often limited in  clinical  practice due  to  the  adverse  effects profile and  the potential to deteriorate baselineliver function. For this unmet need, FDA approved nivolumabas a second-line treatment for patients with advanced HCC and Child-Pugh (C-P)liver function score ≤ B, who progressed to or did not tolerate TKIs.  Although the phase III clinical trial did not achieve its primary endpoint, partial and durable responses were seen. Thus, this study aims to evaluate the safety profile of nivolumab in HCC in a real-world setting.
MATERIALS AND METHODS
Retrospective  and  multicenter  study  of  patients  with  advanced  HCC  treated  with  nivolumab  between January 2017 and December 2020in 5 tertiary hospitals. SPSS was used for data analysis.Atotal of 26 pts with advanced HCC submitted to at least 1 cycle of nivolumabwere included.
RESULT
From January 2017 to December 2020, a total of 26 pts with advanced HCC were submitted to at least 1 cycle  of  nivolumab.Themedian  age was60  years  (61-24  years)and  25  patients  (96%)  male  gender. Chronic liver disease was due to alcohol in 12 patients (44%), HCV infection in 6 (22%) and HCV and HBV co-infection in 3 (11%). Cirrhosis was present in 17 patients (65%), portal hypertension stigma in 13 (48%)and extra-hepatic involvement in 10 (37%). According to C-P score, at the start of nivolumab, 19 (73%) and 7 (27%) patients were A and B score, respectively. Sorafenib was first line in 23 patients (88%) and nivolumab in 3 (12%). Regarding to second-line treatment, nivolumab was an option in 17 patients (74%) and regorafenib in 6 (26%). Six patients started a third-line with nivolumab, 5 with an A C-P score. Under CTCAE, 22 treatment related adverse eventswere seen in 16 patients (59%), 3 grade 3 (14%) and 1 grade 4  (bleeding)  event. The  most  common  adverse  events  were  asthenia,  hepatic  and  gastrointestinal toxicity.More  detailed  information  in  table  3.Toxicity  leading  to  definitive  suspension  was  seen  in  6 patients  (1  bleeding  event,  1  hepatic  toxicity,1  heart  failure  and  2  with grade  2  persistent asthenia). Disease controlwas achieved in 9 patients (37%), with 1 partial response.In the first-,second-and third-linesetting the median time to progressionfrom the start of immunotherapywas 22[21-67], 23 [2–138] and 9weeks [1-19], respectively. Fifteen deaths (58%) were observed, 9 in second-and 4 inthethird-line. The median overall survival (OS) was 101 [36-178], 182[121–188] and 195weeks [87-209], forthefirst, second-and third-line treatment.A C-P score of A at the start of nivolumab was related with superior OS (P=0.014).The medianfollow-up time was 159 weeks, with 6 patients under nivolumab at the end of the study, 2 in the third line setting. One patient with no disease progression, one year after suspension of treatment.

Figure 1

Figure 2

Figure 3

Figure 4

CONCLUSION
The survival of patients with advanced HCC treated with nivolumab was related to C-P score at the start of treatment. Nivolumab is an option to consider with a favorable safety profile consistent with previous reports. Prospective studies are warranted.
REFERENCES
1- B El-Khoueiry A. et al. Nivolumab in patients with advanced hepatocellular carcinoma (CheckMate040): an open-label, non-comparative, phase 1/2 dose escalation and expansion trial. Lancet 2017; 2492-2502.
2- 2-Finn R., et al. Atezolizumab plus Bevacizumab in Unresectable Hepatocellular Carcinoma. New England Journal of Medicine 2020; 382:1894-190.
The data in this poster was presented at World Congress on Gastrointestinal Cancer 2021. Published with permission from the Copyright owner.