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Background <p>Dose-dense methotrexate, vinblastine, doxorubicin, and cisplatin (dd-MVAC) is an established regimen for advanced urothelial carcinoma (aUC). Although platinum-based chemotherapy, typically gemcitabine and cisplatin, followed by switch maintenance avelumab has been a recommended strategy for aUC, no study has evaluated outcomes of dd-MVAC followed by avelumab therapy.</p> Methods <p>We reviewed 71 patients treated with first-line dd-MVAC for aUC at two university hospitals between 2018 and 2024. Overall survival (OS) and progression-free survival (PFS) were assessed as endpoints. Additionally, among patients who achieved ≥ stable disease, we performed propensity score matching between patients with and without avelumab to balance their background characteristics.</p> Results <p>Of 71 patients, 49 (69%) experienced disease progression and 30 (42%) died during the median follow-up of 13&#xa0;months. Median OS and PFS were 24 and 7&#xa0;months, respectively. Among 59 patients who achieved ≥ stable disease after completion of dd-MVAC, 35 received switch maintenance avelumab, while the remaining 24 did not. After propensity score matching, patients with avelumab had significantly longer OS and PFS (both: not reached) than those without (OS: 28&#xa0;months; PFS: 7&#xa0;months).</p> Conclusions <p>We herein report outcomes of dd-MVAC followed by switch maintenance avelumab in real-world patients with aUC for the first time. Avelumab therapy was significantly associated with longer survival in patients who achieved ≥ stable disease after first-line dd-MVAC. Given the excellent survival outcomes, dd-MVAC followed by switch maintenance avelumab may still be a valid option for aUC even in the new treatment paradigm as typified by enfortumab vedotin and pembrolizumab.</p>

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The first real-world evidence on dose-dense methotrexate, vinblastine, doxorubicin, and cisplatin followed by switch maintenance avelumab in advanced urothelial carcinoma: a propensity score-matched study

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  • 发表日期：

    2025年3月3日

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  • Satoru Taguchi,
  • Taketo Kawai,
  • Yoshiaki Kurokawa,
  • Naoki Saegusa,
  • Masahiro Yamamoto,
  • Yoshiki Ambe,
  • Kazuki Honda,
  • Kazuki Maki,
  • Yoichi Fujii,
  • Jimpei Miyakawa,
  • Yuumi Tokura,
  • Hazuki Inoue,
  • Tomoyuki Kaneko,
  • Takehiro Tanaka,
  • Katsuhiko Nara,
  • Jun Kamei,
  • Shigenori Kakutani,
  • Yuta Yamada,
  • Aya Niimi,
  • Daisuke Yamada,
  • Tappei Takada,
  • Tohru Nakagawa,
  • Haruki Kume

摘要

Background

Dose-dense methotrexate, vinblastine, doxorubicin, and cisplatin (dd-MVAC) is an established regimen for advanced urothelial carcinoma (aUC). Although platinum-based chemotherapy, typically gemcitabine and cisplatin, followed by switch maintenance avelumab has been a recommended strategy for aUC, no study has evaluated outcomes of dd-MVAC followed by avelumab therapy.

Methods

We reviewed 71 patients treated with first-line dd-MVAC for aUC at two university hospitals between 2018 and 2024. Overall survival (OS) and progression-free survival (PFS) were assessed as endpoints. Additionally, among patients who achieved ≥ stable disease, we performed propensity score matching between patients with and without avelumab to balance their background characteristics.

Results

Of 71 patients, 49 (69%) experienced disease progression and 30 (42%) died during the median follow-up of 13 months. Median OS and PFS were 24 and 7 months, respectively. Among 59 patients who achieved ≥ stable disease after completion of dd-MVAC, 35 received switch maintenance avelumab, while the remaining 24 did not. After propensity score matching, patients with avelumab had significantly longer OS and PFS (both: not reached) than those without (OS: 28 months; PFS: 7 months).

Conclusions

We herein report outcomes of dd-MVAC followed by switch maintenance avelumab in real-world patients with aUC for the first time. Avelumab therapy was significantly associated with longer survival in patients who achieved ≥ stable disease after first-line dd-MVAC. Given the excellent survival outcomes, dd-MVAC followed by switch maintenance avelumab may still be a valid option for aUC even in the new treatment paradigm as typified by enfortumab vedotin and pembrolizumab.