Universität zu Köln

Churilla, Thomas M., Chowdhury, Imran H., Handorf, Elizabeth, Collette, Laurence, Collette, Sandra, Dong, Yanqun, Alexander, Brian M., Kocher, Martin, Soffietti, Riccardo, Claus, Elizabeth B. and Weiss, Stephanie E. (2019). Comparison of Local Control of Brain Metastases With Stereotactic Radiosurgery vs Surgical Resection A Secondary Analysis of a Randomized Clinical Trial. JAMA Oncol., 5 (2). S. 243 - 248. CHICAGO: AMER MEDICAL ASSOC. ISSN 2374-2445

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Abstract

IMPORTANCE Brain metastases are a common source of morbidity for patients with cancer, and limited data exist to support the local therapeutic choice between surgical resection and stereotactic radiosurgery (SRS). OBJECTIVE To evaluate local control of brain metastases among patients treated with SRS vs surgical resection within the European Organization for the Research and Treatment of Cancer (EORTC) 22952-26001 phase 3 trial. DESIGN, SETTING, AND PARTICIPANTS This unplanned, exploratory analysis of the international, multi-institutional randomized clinical trial EORTC 22952-26001 (conducted from 1996-2007) was performed from February 9. 2017, through July 25, 2018. The EORTC 22952-26001 trial randomized patients with 1 to 3 brain metastases to whole-brain radiotherapy vs observation after complete surgical resection or before SRS. Patients in the present analysis were stratified but not randomized according to local modality (SRS or surgical resection) and treated per protocol with 1 to 2 brain metastases and tumors with a diameter of no greater than 4 cm. INTERVENTIONS Surgical resection or SRS. MAIN OUTCOMES AND MEASURES The primary end point was local recurrence of treated lesions. Cumulative incidence of local recurrence was calculated according to modality (surgical resection vs SRS) with competing risk regression to adjust for prognostic factors and competing risk of death. RESULTS A total of 268 patients were included in the analysis (66.4% men; median age, 60.7 years [range, 26.9-81.1 years]); 154 (57.5%) underwent SRS and 114 (42.5%) underwent surgical resection. Median follow-up time was 39.9 months (range, 260-1982.0 months). Compared with the SRS group, patients undergoing surgical resection had larger metastases (median 28 mm [range, 10-40 mm] vs 20 mm [range, 4-40 mm]; P < .001), more frequently had 1 brain metastasis (112 [98.2%] vs 114 [74.0%]; P < .001), and differed in location (parietal, 21 [18.4%] vs 61 [39.6%]; posterior fossa, 30 [26.3%] vs 12 [7.8%]; P < .001). In adjusted models, local recurrence was similar between the SRS and surgical resection groups (hazard ratio [HR], 1.15; 95% CI, 0.72-1.83). However, when stratified by interval, patients with surgical resection had a much higher risk of early (0-3 months) local recurrence compared with those undergoing SRS (HR, 5.94; 95% Cl, 1.72-20.45), but their risk decreased with time (HR for 3-6 months, 1.37 [95% CI, 0.64-2.90]; HR for 6-9 months, 0.75 [95% CI, 0.28-2.00]). At 9 months or longer, the surgical resection group had a lower risk of local recurrence (HR, 0.36; 95% CI, 0.14-0.93). CONCLUSIONS AND RELEVANCE In this exploratory analysis, local control of brain metastases was similar between SRS and surgical resection groups. Stereotactic radiosurgery was associated with improved early local control of treated lesions compared with surgical resection, although the relative benefit decreased with time.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Churilla, Thomas M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Chowdhury, Imran H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Handorf, Elizabeth UNSPECIFIED UNSPECIFIED UNSPECIFIED Collette, Laurence UNSPECIFIED UNSPECIFIED UNSPECIFIED Collette, Sandra UNSPECIFIED UNSPECIFIED UNSPECIFIED Dong, Yanqun UNSPECIFIED UNSPECIFIED UNSPECIFIED Alexander, Brian M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kocher, Martin UNSPECIFIED UNSPECIFIED UNSPECIFIED Soffietti, Riccardo UNSPECIFIED UNSPECIFIED UNSPECIFIED Claus, Elizabeth B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Weiss, Stephanie E. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-157854
DOI:	10.1001/jamaoncol.2018.4610
Journal or Publication Title:	JAMA Oncol.
Volume:	5
Number:	2
Page Range:	S. 243 - 248
Date:	2019
Publisher:	AMER MEDICAL ASSOC
Place of Publication:	CHICAGO
ISSN:	2374-2445
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language SINGLE METASTASES; RADIATION-THERAPY; RADIOTHERAPY; SURGERY; CAVITY; MULTICENTER; DISEASE; SRS Multiple languages Oncology Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/15785