Sector Irradiation vs. Whole Brain Irradiation After Resection of Singular Brain Metastasis-A Prospective Randomized Monocentric Trial.
brain metastases
neuropsychology
quality of life
radiotherapy
stereotactic radiosurgery (SRS)
Journal
Frontiers in oncology
ISSN: 2234-943X
Titre abrégé: Front Oncol
Pays: Switzerland
ID NLM: 101568867
Informations de publication
Date de publication:
2020
2020
Historique:
received:
05
08
2020
accepted:
29
10
2020
entrez:
17
12
2020
pubmed:
18
12
2020
medline:
18
12
2020
Statut:
epublish
Résumé
To minimize recurrence following resection of a cerebral metastasis, whole-brain irradiation therapy (WBRT) has been established as the adjuvant standard of care. With prolonged overall survival in cancer patients, deleterious effects of WBRT gain relevance. Sector irradiation (SR) aims to spare uninvolved brain tissue by applying the irradiation to the resection cavity and the tumor bed. 40 were randomized to receive either WBRT (n = 18) or SR (n = 22) following resection of a singular brain metastasis. Local tumor control was satisfactory in both groups. Recurrence was observed earlier in the SR (median 3 months, 1-6) than in the WBRT cohort (median 8 months, 7-9) (HR, 0.63; 95% CI, 0.03-10.62). Seventeen patients experienced a distant intracranial recurrence. Most relapses (n = 15) occurred in the SR cohort, whereas only two patients in the WBRT group had new distant tumor manifestation (HR, 6.59; 95% CI, 1.71-11.49; p = 0.002). Median overall survival (OS) was 15.5 months (range: 1-61) with longer OS in the SR group (16 months, 1-61) than in the WBRT group (13 months, 3-52), without statistical significance (HR, 0.55; 95% CI, 0.69-3.64). Concerning neurocognition, patients in the SR group improved in the follow-up assessments, while this was not observed in the WBRT group. There were positive signals in terms of QOL within the SR group, but no significant differences in the global QLQ and QLQ-C30 summary scores were found. Our results indicate comparable efficacy of SR in terms of local control, with better maintenance of neurocognitive function. Unsurprisingly, more distant intracranial relapses occurred.
Identifiants
pubmed: 33330076
doi: 10.3389/fonc.2020.591884
pmc: PMC7732624
doi:
Banques de données
ClinicalTrials.gov
['NCT01667640']
Types de publication
Journal Article
Langues
eng
Pagination
591884Informations de copyright
Copyright © 2020 Kerschbaumer, Pinggera, Holzner, Delazer, Bodner, Karner, Dostal, Kvitsaridze, Minasch, Thomé, Seiz-Rosenhagen, Nevinny-Stickel and Freyschlag.
Déclaration de conflit d'intérêts
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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