Abstract 1517P
Background
Beyond the report of an improvement in quality of life with EPC in pts with lung cancers, Temel et al. (NEJM 2010) also claimed for a survival benefit observed as a secondary endpoint. This prompted us to address the overall survival (OS) benefit of EPC within the EPIC trial dedicated to mUGIC pts.
Methods
EPIC is a randomised (1:1), open-label, phase III trial aimed to estimate OS of EPC compared to SOC for ECOG-PS ≤ 2 pts with mUGIC. Other objectives were PROs (quality of life [QoL, EORTC QLQ-C30], time until definitive deterioration [TUDD] of QoL, depression and anxiety scores [HADS], number of pts receiving chemotherapy in their last 30 days of life, and the presence or absence of advanced directives in pt files. With the following hypotheses: 1- year OS (40% vs. 50.3%, HR=0.75), 2-sided alpha=5%, beta=20%, 381 deaths were required, leading to include 480 pts. Pts were stratified according to centre, ECOG-PS (0-1 vs. 2) and tumor location.
Results
Modified Intent To Treat population was 470 pts, from the 473 pts randomized from 10/2016 to 12/2021 in 19 French centers. Main pts characteristics were: median age= 67.5; 273/470 males; tumour site: oesophagus 39, HER2-negative esogastric 48, pancreas 297, biliary tree 86; ECOG-PS 0/1/2: 104/278/88. The mean number of PC visits was 4.7 and 0.6 in the EPC and SOC group, respectively. Median follow-up was 46m. OS data has already been reported at ASCO-2023. Overall, all dimensions of QoL remained stable along the study course, without any difference between arms. TUDD analysis did not show any difference between treatment arms for any of the QoL dimensions. Anxiety and depressions scores varied over time similarly in both arms. Respectively in EPC and SOC arms, 33% and 28% pts received chemotherapy in their last month of life; 17% and 11% had advanced directive written.
Conclusions
EPC did not improve QoL, anxiety and depression scores versus SOC in mUGIC pts. Whether these unexpected findings are related to our study population, to our study design (including content or number of EPC we provided), or to real facts remains to be determined.
Clinical trial identification
NCT02853474.
Editorial acknowledgement
Legal entity responsible for the study
Centre Oscar Lambret.
Funding
Ligue contre le cancer, France; Région Nord-Pas de Calais, France; National Cancer Institute, France.
Disclosure
All authors have declared no conflicts of interest.
Resources from the same session
1554P - Clinical Impact of ERBB2 copy number and tumor mutation burden (TMB) in patients with HER2- positive advanced gastric cancer treated by nivolumab (N-mab) plus trastuzumab (T-mab) and standard chemotherapy
Presenter: Hirokazu Shoji
Session: Poster session 21
1555P - Cell-free DNA analysis in patients with metastatic gastroesophageal adenocarcinoma: Preliminary results of the REGIRI - PRODIGE 58 ancillary study
Presenter: Alexandre Harlé
Session: Poster session 21
1556P - Pharmacokinetics, pharmacodynamics and exposure response analyses of osemitamab in patients with locally advanced or metastatic solid tumors
Presenter: Lin Shen
Session: Poster session 21
1557P - Single-cell RNA-seq dissecting the initiating liver metastasis cells and liver metastatic microenvironment in gastric cancer
Presenter: Shu-yue Zheng
Session: Poster session 21
1558P - Preoperative pembrolizumab plus chemotherapy for resectable esophageal squamous cell carcinoma (ESCC): The phase II Keystone-001 trial
Presenter: hongjing jiang
Session: Poster session 21
1559P - PD-L1 expression as a negative predictive biomarker in advanced esophageal squamous cell cancer treated with chemotherapy alone: A KMSubtraction derived analysis
Presenter: Manavi Sachdeva
Session: Poster session 21
1560P - Osemitamab (TST001): An ADCC enhanced humanized anti-CLDN18.2 mab, demonstrated improved efficacy in combination with anti-PD-L1/PD-1 mab and oxaliplatin/5-FU in preclinical tumor models
Presenter: Xueming Qian
Session: Poster session 21
1561P - APC mutation (mt.), MYC, and GATA6 amplifications (amp.) were associated with worse survival in HER2-positive advanced gastric cancer patients treated with S-1/capecitabine plus oxaliplatin combined with trastuzumab (T-mab) and nivolumab (N-mab)
Presenter: Takeru Wakatsuki
Session: Poster session 21
1562P - Claudin 18.2 expression in resected gastric cancer
Presenter: Mitsuhiro Furuta
Session: Poster session 21
1563P - Tumor-intrinsic subtypes of esophageal adenocarcinoma associate cellular phenotypes with responses to therapy
Presenter: Dionne Blangé
Session: Poster session 21