American Association for Cancer Research
Browse
ccr-22-2158_supplementary_table_s4_suppts4.docx (13.7 kB)

Supplementary Table S4 from Neoadjuvant Pembrolizumab and Radical Cystectomy in Patients with Muscle-Invasive Urothelial Bladder Cancer: 3-Year Median Follow-Up Update of PURE-01 Trial

Download (13.7 kB)
journal contribution
posted on 2023-04-01, 00:06 authored by Giuseppe Basile, Marco Bandini, Ewan A. Gibb, Jeffrey S. Ross, Daniele Raggi, Laura Marandino, Tiago Costa de Padua, Emanuele Crupi, Renzo Colombo, Maurizio Colecchia, Roberta Lucianò, Luigi Nocera, Marco Moschini, Alberto Briganti, Francesco Montorsi, Andrea Necchi

Distribution of the GSC subtypes according to the TCGA classification.

Funding

Associazione Italiana per la Ricerca sul Cancro (AIRC)

History

ARTICLE ABSTRACT

The PURE-01 study (NCT02736266) pioneered the neoadjuvant immune-checkpoint inhibitor (ICI) therapy before radical cystectomy (RC) in patients with muscle-invasive urothelial bladder carcinoma (MIBC). We herein present the survival outcomes after a median follow-up of three years. The intention-to-treat (ITT) population included 155 patients. Event-free survival (EFS) was defined as the time from pembrolizumab initiation until radiographic disease progression precluding RC, initiation of neoadjuvant chemotherapy, recurrence after RC, or death. Further outcomes were recurrence-free survival (RFS) post-RC and overall survival (OS). Multivariable Cox regression analyses for EFS were performed. Kaplan–Meier analyses compared EFS outcomes according with baseline programmed cell-death-ligand-1 (PD-L1) combined positive score (CPS) and according to the molecular subtypes. After a median (interquartile range, IQR) follow-up of 39 (30–47) months, 36-month EFS and OS were 74.4% [95% confidence interval (CI), 67.8–81.7] and 83.8% (95% CI, 77.8–90.2) in the ITT population, respectively. Overall, 143 (92.3%) patients underwent RC. Within the cohort of patients who did not receive additional chemotherapy (N = 125), 36-month RFS was 96.3% (95% CI, 91.6–100) for patients achieving a ypT0N0, 96.1% (95% CI, 89–100) for ypT1/a/isN0, 74.9% (95% CI, 60.2–93) for ypT2–4N0, and 58.3% (95% CI, 36.2–94.1) for ypTanyN1–3 response. EFS was significantly stratified among PD-L1 tertiles (lower tertile: 59.7% vs. medium tertile: 76.7% vs. higher tertile: 89.8%, P = 0.0013). The claudin-low and basal/squamous subtypes displayed the lowest rates of events. At a median follow-up of three years, PURE-01 results further confirm the sustained efficacy of neoadjuvant pembrolizumab before RC. PD-L1 expression was the strongest predictor of sustained response post-RC.

Usage metrics

    Clinical Cancer Research

    Categories

    Keywords

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC