Journals / Turkish Journal of Clinics and Laboratory / 2026 / Cilt: 16 Sayı: 1

Effects of neoadjuvant and adjuvant chemotherapy on survival in muscle-invasive bladder cancer: A multicenter study

Kas-İnvaziv mesane kanserinde neoadjuvan ve adjuvan kemoterapinin sağkalım üzerine etkinliği: Çok merkezli çalışma

Nargiz Majidova(VM Medical Park Maltepe Hospital)0000-0002-2575-5819
Ahmet Emin Öztürk(UNIVERSITY OF HEALTH SCIENCES, İSTANBUL OKMEYDANI HEALTH RESEARCH CENTER)0000-0003-3365-5540
Rumeysa Çolak(ISTANBUL UNIVERSITY, İSTANBUL BAKIRKÖY HEALTH ACADEMY)0000-0002-3867-0793
Özge Yalıcı(NAMIK KEMAL ÜNİVERSİTESİ)0009-0002-0260-7511
Mehmet Cihan İçli(HACETTEPE ÜNİVERSİTESİ)0000-0002-7857-6902
Barış Köksal(HACETTEPE ÜNİVERSİTESİ)0000-0002-0418-5749
Murat Arcagök(DİCLE ÜNİVERSİTESİ)0000-0002-4058-6929
Yaprak Caglar(MARMARA ÜNİVERSİTESİ)0009-0006-4296-3405
Ali Kaan Güren(MARMARA ÜNİVERSİTESİ)0000-0002-3562-5006
Pınar Erel(MARMARA UNIVERSITY)0000-0002-2797-2075
Nadiye Sever(MARMARA ÜNİVERSİTESİ)0000-0001-7312-3827
Osman Köstek(MARMARA ÜNİVERSİTESİ)0000-0002-1901-5603
Murat Sarı(MARMARA UNIVERSITY)0000-0003-0596-1559
Pages
123–130
Publication Date
2025-03-25
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

After neoadjuvant treatment, 30-month DFS was 85.7% and 45.9% in the pathologic complete response (CR) and non-CR group, respectively. 30-month overall survival (OS) was 69.8% in the whole group, 71.7% in neoadjuvant and 68.2% in adjuvant.

📌 3 Key Takeaways

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Objective & Hypothesis:Aim: Muscle-invasive bladder cancer requires systemic treatment due to its high risk of metastasis.
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Key Findings & Data:Material and Methods: We retrospectively included 107 bladder cancer patients from 6 centres who underwent radical cystectomy and received perioperative chemotherapy.
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Conclusion & Impact:After neoadjuvant treatment, 30-month DFS was 85.7% and 45.9% in the pathologic complete response (CR) and non-CR group, respectively. 30-month overall survival (OS) was 69.8% in the whole group, 71.7% in neoadjuvant and 68.2% in adjuvant.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:mesane kanseri · neoadjuvan kemoterapi · radikal sistektomi

Abstract

Aim: Muscle-invasive bladder cancer requires systemic treatment due to its high risk of metastasis. However, studies comparing neoadjuvant and adjuvant therapy regimens are currently limited. Our goal in this study was to compare the treatment efficacy of patients receiving neoadjuvant or adjuvant treatment in locally advanced bladder cancer. Material and Methods: We retrospectively included 107 bladder cancer patients from 6 centres who underwent radical cystectomy and received perioperative chemotherapy. Patients were divided into 2 categories: (i) neoadjuvant chemotherapy (n=54) and (ii) adjuvant chemotherapy (n=53). Results: Median follow-up was 31.6 months (95%CI 21.8-41.4). 30-month disease-free survival (DFS) was 58.9% in the whole group, 56.3% in neoadjuvant and 61.5% in adjuvant. 30-month DFS after neoadjuvant treatment was 70.1% in <pT2N0 and 41.1% in ≥pT2, according to substaging. After neoadjuvant treatment, 30-month DFS was 85.7% and 45.9% in the pathologic complete response (CR) and non-CR group, respectively. 30-month overall survival (OS) was 69.8% in the whole group, 71.7% in neoadjuvant and 68.2% in adjuvant. This rate in patients with neoadjuvant downstaging was 81.4% and 62% in the <pT2N0 and ≥pT2 groups, respectively. At the same time, 30-month OS in the pathologic CR and non-CR group was 100% and 62.6%, respectively. Conclusion: In patients with locally advanced bladder cancer who show a pathologically complete response to neoadjuvant chemotherapy, it is important to be evaluated in a multidisciplinary consultation in order to give cisplatin- based treatment before surgery since it has a significant contribution in terms of both DFS and OS.

Özet

Amaç: Kasa invaze mesane kanserinin tedavisinde yüksek metastaz riski nedeniyle sistemik tedavi önerilmektedir. Neoadjuvan veya adjuvan tedaviyi karşılaştıran yeterli çalışma olmaması nedeniyle bu çalışmada amacımız lokal ileri evre mesane kanserinde neoadjuvan veya adjuvan tedavi alan hastaların tedavi etkinliğini karşılaştırmaktır. Gereç ve Yöntemler: Radikal sistektomi yapılan ve perioperatif kemoterapi alan 6 merkezden 107 mesane kanseri hastası retrospektif olarak çalışmaya dahil edildi. Hastalar 2 kategoriye ayrıldı: (i) neoadjuvan kemoterapi (n=54) ve (ii) adjuvan kemoterapi (n=53). Ortanca takip süresi 31.6 aydı (%95CI 21.8-41.4). 30. ay hastalıksız sağkalım oranı (HSO) tüm grupta %58.9, neoadjuvanda %56.3 ve adjuvanda %61.5 idi. Neoadjuvan tedavi sonrası 30.ay HSS evrelemeye göre <pT2N0'da %70.1 ve ≥pT2'de %41.1 idi. Neoadjuvan tedavi sonrasında, 30.ay HSO patolojik tam yanıt (TY) ve TY olmayan grupta sırasıyla %85,7 ve %45,9 idi. 30.ay genel sağkalım oranı (GSO) tüm grupta %69,8, neoadjuvanda %71,7 ve adjuvanda %68,2 idi. Neoadjuvan tedavi ile evre gerilemesi olanlarda<pT2N0 ve ≥pT2 gruplarında 30.ay GSO sırasıyla %81.4 ve %62.0 idi. Aynı zamanda, patolojik TY ve TY olmayan grupta 30.ay GSO sırasıyla %100 ve %62.6 idi. Sonuç: Neoadjuvan ve adjuvan kemoterapi, kas-invaziv mesane kanseri tedavisinde sağkalımı önemli ölçüde etkileyen yaklaşımlardır. Patolojik tam yanıt ve sisplatin bazlı rejimler, daha iyi sağkalım sonuçları ile ilişkilidir. Bu bulgular, tedavi planlamasında patolojik tam yanıtın ve rejim seçiminin önemini vurgulamaktadır ve tedavi kararı multidispliner olarak verilmelidir.

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Cite This Article

Majidova, N., Öztürk, A. E., Çolak, R., Yalıcı, Ö., İçli, M. C., Köksal, B., Arcagök, M., Taşkın, S., Caglar, Y., Güren, A. K., Kocaaslan, E., Erel, P., Ağyol, Y., Sever, N., Çelebi, A., Arıkan, R., Işık, S., Bayoğlu, V., Köstek, O., Şeber, E. S., Urakçı, Z., Sarı, M. (2025). Effects of neoadjuvant and adjuvant chemotherapy on survival in muscle-invasive bladder cancer: A multicenter study. Turkish Journal of Clinics and Laboratory, Cilt: 16 Sayı: 1, 123–130. https://doi.org/10.18663/tjcl.1575691

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