High‐dose chemotherapy followed by autologous stem cell rescue in Wilms tumors: French report on toxicity and efficacy - Archive ouverte HAL Access content directly
Journal Articles Pediatric Blood and Cancer Year : 2022

High‐dose chemotherapy followed by autologous stem cell rescue in Wilms tumors: French report on toxicity and efficacy

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Abstract

Background Heterogeneous data have been reported on high-dose chemotherapy (HDCT) with autologous stem cell rescue (ASCR) in Wilms tumors (WTs). We aimed to define its safety and efficacy in the French cohort, and to compare this management to current international recommendations. Methods Data prospectively collected from children, adolescents, and young adults with WT treated with HDCT/ASCR between 2000 and 2016 in French centers were retrospectively analyzed. Toxicity was reported according to CTCAE v4.03. Results Fifty-four patients received HDCT/ASCR (first line, n = 13; recurrence, n = 41). Their median age at the time of ASCR was 5.3 years (range 2.2–21.6). Main nonhematological acute grades 3–4 toxicities were digestive and renal. No significant difference of toxicity rate was observed among HDCT regimens and schedules. Two patients died shortly after ASCR (renal and multiorgan failure), and one heavily pretreated patient died of late respiratory failure. The selection criteria applied to define those patients eligible for HDCT/ASCR retrospectively matched to those currently used in the International Society of Pediatric Oncology (SIOP) UMBRELLA protocol for 38 patients, with encouraging survival rates compared to published data. The objective response rate to HDCT was 21%, with a disease control rate after HDCT of 85%. After a median follow-up of 7 years, the 5-year event-free survival (EFS) and overall survival (OS) were 54% (95% CI: 32%–76%) and 62% (95% CI: 31%–82%) for frontline patients, and 57% (95% CI: 39%–71%) and 69% (95% CI: 52%–81%) at recurrence. Conclusion HDCT was feasible and showed encouraging results in well-defined settings. Data from the current prospective protocol will help to better evaluate HDCT impact on survival.
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Dates and versions

hal-03519946 , version 1 (10-01-2022)

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Manon Delafoy, Arnauld Verschuur, Gudrun Scheleirmacher, Marie‐dominique Tabone, Hélène Sudour‐bonnange, et al.. High‐dose chemotherapy followed by autologous stem cell rescue in Wilms tumors: French report on toxicity and efficacy. Pediatric Blood and Cancer, 2022, 69 (3), pp.e29431. ⟨10.1002/pbc.29431⟩. ⟨hal-03519946⟩
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