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Confirmatory analysis of QUARTZ study results: Survival prolongation after whole-brain radiotherapy

Permanent link
https://hdl.handle.net/10037/20731
DOI
https://doi.org/10.21873/anticanres.14031
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Date
2020-02-03
Type
Journal article
Tidsskriftartikkel
Peer reviewed

Author
Nieder, Carsten; Dalhaug, Astrid; Pawinski, Adam
Abstract

Background/Aim: The aim of this study was to analyze the survival of patients with brain metastases treated with best supportive care or additional whole-brain radiotherapy (WBRT), in order to confirm results from the prospective randomized QUARTZ study, which suggested prolonged survival after WBRT (5 fractions of 4 Gy) if favorable prognostic factors were present (age younger than 60 years, graded prognostic assessment score 2.5-3 points).

Patients and Methods: We performed a retrospective single institution analysis of 76 patients with favorable prognosis. In contrast to the QUARTZ trial, inclusion was not limited to patients with non-small cell lung cancer (NSCLC). Furthermore, a cohort treated with higher total doses of WBRT was included (10 fractions of 3 Gy).

Results: All patients were younger than 60 years or had a graded prognostic assessment score of 2.5-3. The median survival was significantly shorter after best supportive care (1.2 months; 3.2 months after WBRT with 5 fractions of 4 Gy and 3.9 months after 10 fractions of 3 Gy). Also, in multivariate analyses, survival was significantly better after WBRT. Further favorable prognostic factors included better performance status, no or limited extracranial metastases and primary tumor other than gastrointestinal.

Conclusion: In line with the QUARTZ trial results, WBRT prolonged survival in patients with favorable prognostic features.

Publisher
International Institute of Anticancer Research
Citation
Nieder C, Dalhaug A, Pawinski A. Confirmatory analysis of QUARTZ study results: Survival prolongation after whole-brain radiotherapy. Anticancer Research. 2020;40(2):977-981
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