ReviewBladder cancer (Amsterdam, Netherlands)2024
Systemic induction therapy in patients with locally advanced or node-positive urothelial carcinoma: Evaluating treatment outcomes.
Review in Bladder cancer (Amsterdam, Netherlands), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Authors and funding
6 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Background: The presence of lymph node metastases in patients with urothelial carcinoma (UC) plays a pivotal role in disease management and prognosis. Patients with locally advanced irresectable or clinically node-positive UC are often considered ineligible for surgery due to the extent of affected lymph nodes. Long term remission or even cure may be achieved in a subset of patients who experience response to systemic induction therapy and consolidative locoregional treatment. Objective: To assess the pathological response to preoperative systemic induction therapy followed by radical surgery in patients with locally advanced irresectable or clinically node-positive UC. Methods: Searches were performed until September 2023 in 5 databases (EMBASE, MEDLINE, Web-of-Science, Cochrane and Pubmed Publisher). Studies including patients with cT4bNxM0/cTxN1-3M0 UC, treated with induction chemotherapy or non-chemo induction therapy followed by radical surgery, were selected. The primary outcome was the pathological complete response (pCR) rate, i.e., the proportion of patients without residual disease in the surgical resection specimen (ypT0N0). Secondary outcomes included overall and cancer-specific survival (OS, CSS). Results: Fourteen studies were included, representing 5715 patients. Two studies reported on non-chemo induction therapy. The reported pCR rate in patients receiving induction chemotherapy varied from 9% to 27% compared to 25% after induction immunotherapy. The 5-year OS and CSS after induction chemotherapy and radical surgery ranged from 25 to 34% and 30 to 49%. Conclusion: Systemic induction therapy in patients with locally advanced irresectable or clinically node-positive UC resulted in modest pCR rates. Due to considerable heterogeneity between studies, no direct comparison on the efficacy of induction therapy regimens was possible.
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