Article ; Online: Outcomes according to treatment using an established protocol in patients with bilateral Wilms' tumor: A national Canadian population-based study.
2023 Volume 58, Issue 5, Page(s) 1014–1017
Abstract: Background: Bilateral Wilms tumor (BWT) is a rare entity. The goal of this study is to report outcomes (overall and event-free survival, OS/EFS) of BWT in a large cohort representative of the Canadian population since 2000. We focused on the occurrence ... ...
| Abstract | Background: Bilateral Wilms tumor (BWT) is a rare entity. The goal of this study is to report outcomes (overall and event-free survival, OS/EFS) of BWT in a large cohort representative of the Canadian population since 2000. We focused on the occurrence of late events (relapse or death beyond 18 months), as well as outcomes of patients treated following the only protocol specifically designed for BWT to date, AREN0534, compared to patients treated following other therapeutic schemes. Methods: Data was obtained for patients diagnosed with BWT between 2001 and 2018 from the Cancer in Young People in Canada (CYP-C) database. Demographics, treatment protocols, and dates for events were collected. Specifically, we examined outcomes of patients treated according to the Children's Oncology Group (COG) protocol AREN0534 since 2009. Survival analysis was performed. Results: 57/816 (7%) of patients with Wilms tumor had BWT during the study period. Median age at diagnosis was 2.74 years (IQR 1.37-4.48) and 35 (64%) were female; 8/57 (15%) had metastatic disease. After a median follow-up of 4.8 years (IQR 2.8-5.7 years, range 0.2-18 years), OS and EFS were 86% (CI 73-93%) and 80% (CI 66-89%), respectively. Less than 5 events were recorded after 18 months from diagnosis. Since 2009, patients treated according to the AREN0534 protocol had a statistically significant higher OS compared to patients treated with other protocols. Conclusions: In this large Canadian cohort of patients with BWT, OS and EFS compared favorably to the published literature. Late events were rare. Patients treated according to a disease-specific protocol (AREN0534) had improved overall survival. Type of study: Original article. Level of evidence: Level IV. |
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| MeSH term(s) | Child ; Humans ; Female ; Infant ; Adolescent ; Male ; Kidney Neoplasms/epidemiology ; Kidney Neoplasms/therapy ; Kidney Neoplasms/diagnosis ; Nephrectomy/methods ; Neoplasm Recurrence, Local/pathology ; Canada/epidemiology ; Wilms Tumor/epidemiology ; Wilms Tumor/therapy ; Antineoplastic Combined Chemotherapy Protocols/therapeutic use ; Neoplasm Staging |
| Language | English |
| Publishing date | 2023-01-18 |
| Publishing country | United States |
| Document type | Journal Article |
| ZDB-ID | 80165-3 |
| ISSN | 1531-5037 ; 0022-3468 |
| ISSN (online) | 1531-5037 |
| ISSN | 0022-3468 |
| DOI | 10.1016/j.jpedsurg.2023.01.016 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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