Real-world treatment patterns and clinical outcomes in patients with locally advanced or metastatic urothelial carcinoma in Germany: retrospective CONVINCE study

Abstract Purpose CONVINCE is a retrospective medical chart review study that examined demographics, treatment patterns, and outcomes in patients who received first-line (1L) treatment for locally advanced or metastatic urothelial carcinoma (la/mUC) in Germany. Methods Eligible patients were adults w...

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Main Authors: Katrin Schlack, Stefan Machtens, Thomas Kubin, Markus Ruhnke, Clemens Schulte, Anna Eisen, Ulrike Osowski, Silke Guenther, Mairead Kearney, Rainer Lipp, Stephan Schmitz
Format: Article
Language:English
Published: Springer 2025-03-01
Series:Journal of Cancer Research and Clinical Oncology
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Online Access:https://doi.org/10.1007/s00432-025-06131-y
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Summary:Abstract Purpose CONVINCE is a retrospective medical chart review study that examined demographics, treatment patterns, and outcomes in patients who received first-line (1L) treatment for locally advanced or metastatic urothelial carcinoma (la/mUC) in Germany. Methods Eligible patients were adults with confirmed la/mUC who received any systemic 1L anticancer treatment between January 1, 2019, and September 30, 2021, outside of a clinical trial. Patients were grouped by type of 1L treatment: platinum-based chemotherapy (PBC), immune checkpoint inhibitor (ICI), or other treatments. Follow-up was ≥ 6 months after end of PBC or start of ICI or other treatments. The primary objective was measurement of real-world progression-free survival (rwPFS). Results Data were collected from 188 patients treated at 27 sites (hospitals or office-based practices). First-line treatment was PBC in 76.1% of patients, ICI in 19.1%, and other treatments in 4.8%. The most common PBC regimen was cisplatin + gemcitabine (72.7%), and the most common ICI was atezolizumab (44.4%); 4.2% of PBC-treated patients received avelumab 1L maintenance. In patients who received 1L PBC, ICI treatment, or other treatments, median (95% CI) rwPFS was 10.5 months (9.2–11.6), 12.6 months (8.9–22.9), and not evaluable; median (95% CI) real-world overall survival was 18.1 months (16.5–19.0), 15.9 months (11.1–24.5), and not evaluable; and objective response rates were 56.6%, 60.0%, and 83.3%, including complete response in 14.0%, 20.0%, and 0%, respectively. Conclusion PBC was the most common 1L treatment in patients with la/mUC in Germany, consistent with treatment guidelines. Future studies are needed to assess outcomes with newer treatments.
ISSN:1432-1335