Abstract 2513
Background
We investigated whether Imunoscore performed on localized or locally advanced urothelial carcinoma (UC) tumor samples could predict response to neoadjuvant chemotherapy and survival outcome.
Methods
This retrospective ongoing study evaluated the Immunoscore in 150 patients with UC (140 UC of the bladder, 10 UC of the upper tract) from 6 centers (Greece and France). All patients underwent neo-adjuvant chemotherapy. Pre-treatment tumor samples (trans-urethral resection or upper tract biopsy) were immunostained for CD3+ and CD8+ T cells and quantified by digital pathology to determine the Immunoscore. The consensus Immunoscore was applied to tumors with invasive margin and an Immunoscore adapted to samples quantified when no invasion was identified on the specimen. Results were correlated with response to neoadjuvant treatment and time to recurrence (TTR).
Results
Immunoscore Low, Intermediate and High were respectively observed in 40, 43 and 17% of the cohort. Densities of CD3 and CD8 in the center and invasive margin were not significantly different according to clinical parameters such as T-stage, N-stage, age, gender, tumor differentiation (with or without variant), and localization (upper tract versus bladder). Immunoscore was positively and significantly correlated with TTR. High, intermediate and low Immunoscore patients had a median TTR of 83, 34 and 27 months, respectively (P < 0,05). In multivariate analysis, Immunoscore remains a significant independent parameter at presentation associated with TTR (High vs Low: P < 0.05). Immunoscore was positively and significantly correlated with pathologic complete response (pCR) (P < 0.001). Low Immunoscore was observed in 69% of patients with no pCR, and in only 20% of patients with pCR. In contrast, high Immunoscore was observed in only 7% of patients with no pCR, whereas 40% of these patients had a pCR.
Conclusions
The results of this ongoing study show a significant prognostic and potentially predictive role of Immunoscore in UC patients with important therapeutic implications. These preliminary results will be completed as samples are being analyzed before ESMO 2019 annual meeting.
Clinical trial identification
Editorial acknowledgement
Legal entity responsible for the study
The authors.
Funding
FONCER.
Disclosure
C. Thibault: Honoraria (self), Travel / Accommodation / Expenses: Astellas Pharma; Honoraria (self): Ipsen; Advisory / Consultancy, Travel / Accommodation / Expenses: Janssen-Cilag; Advisory / Consultancy, Travel / Accommodation / Expenses: Pfizer; Advisory / Consultancy, Research grant / Funding (institution): Sanofi Pasteur; Research grant / Funding (institution), Travel / Accommodation / Expenses: AstraZeneca/Medimmune; Travel / Accommodation / Expenses: Astellas; Travel / Accommodation / Expenses: Roche/Genentech. F. Hermitte: Shareholder / Stockholder / Stock options, Full / Part-time employment: HalioDx. A. Bamias: Honoraria (self), Advisory / Consultancy, Research grant / Funding (self): BMS; Honoraria (self), Advisory / Consultancy, Research grant / Funding (self): Pfizer; Advisory / Consultancy, Research grant / Funding (self): AstraZeneca; Advisory / Consultancy, Research grant / Funding (self): Ipsen; Research grant / Funding (self): Lilly; Research grant / Funding (self): Astellas. J. Galon: Advisory / Consultancy, Research grant / Funding (institution), Shareholder / Stockholder / Stock options: HalioDx; Honoraria (self): AstraZeneca; Honoraria (self): Novartis; Honoraria (self): Merck; Honoraria (self): MSD; Honoraria (self): BMS; Honoraria (self): Sanofi; Honoraria (self): Gilead; Advisory / Consultancy, Research grant / Funding (institution): Io Biotech; Advisory / Consultancy: Illumina; Advisory / Consultancy: Northwest Biotherapeutics; Advisory / Consultancy: Actelion; Advisory / Consultancy: Amgen; Research grant / Funding (institution): Perkin Elmer; Research grant / Funding (institution): MedImmune; Research grant / Funding (institution): Janssen; Research grant / Funding (institution): Imcheck; Licensing / Royalties: INSERM. All other authors have declared no conflicts of interest.
Resources from the same session
3988 - Basal NK activity and early Treg function inhibition predicts Nivolumab responsiveness in metastatic renal cancer patients (REVOLUTION) trial.
Presenter: Sara Santagata
Session: Poster Display session 3
Resources:
Abstract
2142 - Low NK Cell Abundance Correlates with High Expression of PD-1 in CD8+ T Cells
Presenter: Moon Hee Lee
Session: Poster Display session 3
Resources:
Abstract
5501 - Tobacco smoking is associated with the immune suppressive microenvironment in head and neck squamous cell carcinoma (HNSCC)
Presenter: Christine Chung
Session: Poster Display session 3
Resources:
Abstract
5726 - Evaluation of Antibody-Dependent Cell Cytotoxicity (ADCC) in lung cancer cell lines treated with combined anti-EGFR and anti-PD-L1 therapy.
Presenter: Francesca Sparano
Session: Poster Display session 3
Resources:
Abstract
2534 - Radiomic Signatures for Identification of Tumors Sensitive to Nivolumab or Docetaxel in Squamous Non-Small Cell Lung Cancer (sqNSCLC)
Presenter: Laurent Dercle
Session: Poster Display session 3
Resources:
Abstract
3366 - Analysis of gut microbiota in advanced non-small cell lung cancer (NSCLC) patients treated with immune-checkpoints blockers
Presenter: FEIYU ZHANG
Session: Poster Display session 3
Resources:
Abstract
2089 - Pathogenesis of Myocarditis Following Treatment with Immune Checkpoint Inhibitors in a Cynomolgus Monkey Model
Presenter: Changhua Ji
Session: Poster Display session 3
Resources:
Abstract
4463 - Effects of dietary restriction in cancer patients receiving irinotecan
Presenter: Ruben Van Eerden
Session: Poster Display session 3
Resources:
Abstract
4841 - Investigating the Link between Burn Injury and Tumorigenesis
Presenter: Lucy Barrett
Session: Poster Display session 3
Resources:
Abstract
4619 - Prognostic value of the neutrophil-lymphocyte, platelet-lymphocyte and monocyte-lymphocyte ratio in male breast cancer patients
Presenter: Joanna Huszno
Session: Poster Display session 3
Resources:
Abstract