Trial reportThe Lancet. Oncology2017
Post-operative stereotactic radiosurgery versus observation for completely resected brain metastases: a single-centre, randomised, controlled, phase 3 trial.
Trial report in The Lancet. Oncology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to trial NCT00950001 (Efficacy of Post-Surgical Stereotactic Radiosurgery for Metastatic Brain Disease), which is not on this map. Cited by 395 papers, 15 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Efficacy of Post-Surgical Stereotactic Radiosurgery for Metastatic Brain Disease: A Randomized Trial
Who cites it
395 citing papers in PubMed, 15 syntheses or guidelines pooled it.
- Outcomes and adverse events of postoperative stereotactic interventional radiotherapy/brachytherapy for brain metastases: a systematic review.La Radiologia medica · 2026Pooled it
- Single-fraction stereotactic radiosurgery vs. hypofractionated stereotactic radiotherapy for resected brain metastases: a systematic review and meta-analysis of comparative studies.Neurosurgical review · 2026Pooled it
- The role of preoperative stereotactic radiotherapy in the management of resectable brain metastases: A systematic review.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2026Pooled it
- Low-energy X-ray intraoperative radiotherapy for brain metastases: a systematic review of efficacy and safety.Journal of neuro-oncology · 2026Pooled it
- Intra-cavitary radiotherapy for surgically resected brain metastases: a comprehensive analysis including an individual patient data meta-analysis of intraoperative radiotherapy (IORT) and brachytherapy (IBT).Journal of neuro-oncology · 2025Pooled it
- [Clinical Practice Guidelines for the Management of Brain Metastases from Non-small Cell Lung Cancer with Actionable Gene Alterations in China (2025 Edition)].Zhongguo fei ai za zhi = Chinese journal of lung cancer · 2025Guideline
- Analysis of prognostic factors and risk prediction in brain metastases: a SEER population-based study.Frontiers in oncology · 2025Pooled it
- Comparative effectiveness of frame-based and mask-based Gamma Knife stereotactic radiosurgery in brain metastases: A 509 patient meta-analysis.Journal of neuro-oncology · 2024Pooled it
- Factors associated with the local control of brain metastases: a systematic search and machine learning application.BMC medical informatics and decision making · 2024Pooled it
- Letter: Estimating the baseline local recurrence rate for a brain metastasis after neurosurgical resection.Clinical & experimental metastasis · 2024Pooled it
- DEGRO guideline for personalized radiotherapy of brain metastases and leptomeningeal carcinomatosis in patients with breast cancer.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2024Guideline
- Comparison of Gamma Knife (GK) and Linear Accelerator (LINAC) radiosurgery of brain metastasis resection cavity: a systematic review and proportional meta-analysis.Clinical & experimental metastasis · 2024Pooled it
- Tyrosine kinase inhibitors in HER2-positive breast cancer brain metastases: A systematic review and meta-analysis.Cancer medicine · 2023Pooled it
- Efficacy of neoadjuvant stereotactic radiotherapy in brain metastases from solid cancer: a systematic review of literature and meta-analysis.Neurosurgical review · 2023Pooled it
- The association between graded prognostic assessment and the prognosis of brain metastases after whole brain radiotherapy: a meta-analysis.Frontiers in oncology · 2023Pooled it
- Intraoperative radiotherapy after resection of newly diagnosed brain metastases in adult patients - results of a prospective phase II trial (INTRAMET).Journal of neuro-oncology · 2026Trial
- Hypofractionated stereotactic radiotherapy versus whole-brain radiotherapy following brain metastasis resection: Results of the ESTRON randomized phase 2 trial.Neuro-oncology · 2025Trial
- Trastuzumab deruxtecan in HER2-positive advanced breast cancer with or without brain metastases: a phase 3b/4 trial.Nature medicine · 2024Trial
- Intraoperative radiotherapy for brain metastases: first-stage results of a single-arm, open-label, phase 2 trial.Journal of neuro-oncology · 2023Trial
- Trial
335 more citing papers are in PubMed but not listed here.
Corrections and comments
- Commented on by
- Commented on by
- Commented on by
- Commented on by
- Erratum issued
- Erratum issued
Authors and funding
26 authors.
Funding
Abstract
backgroundAfter brain metastasis resection, whole brain radiotherapy decreases local recurrence, but might cause cognitive decline. We did this study to determine if stereotactic radiosurgery (SRS) to the surgical cavity improved time to local recurrence compared with that for surgical resection alone.
methodsIn this randomised, controlled, phase 3 trial, we recruited patients at a single tertiary cancer centre in the USA. Eligible patients were older than 3 years, had a Karnofsky Performance Score of 70 or higher, were able to have an MRI scan, and had a complete resection of one to three brain metastases (with a maximum diameter of the resection cavity ≤4 cm). Patients were randomly assigned (1:1) with a block size of four to either SRS of the resection cavity (within 30 days of surgery) or observation. Patients were stratified by histology of the primary tumour, metastatic tumour size, and number of metastases. The primary endpoint was time to local recurrence in the resection cavity, assessed by blinded central review of brain MRI scans by the study neuroradiologist in the modified intention-to-treat population that analysed patients by randomised allocation but excluded patients found ineligible after randomisation. Participants and other members of the treatment team (excluding the neuroradiologist) were not masked to treatment allocation. The trial is registered with ClinicalTrials.gov, number NCT00950001, and is closed to new participants.
findingsBetween Aug 13, 2009, and Feb 16, 2016, 132 patients were randomly assigned to the observation group (n=68) or SRS group (n=64), with 128 patients available for analysis; four patients were ineligible (three from the SRS group and one from the observation group). Median follow-up was 11·1 months (IQR 4·8-20·4). 12-month freedom from local recurrence was 43% (95% CI 31-59) in the observation group and 72% (60-87) in the SRS group (hazard ratio 0·46 [95% CI 0·24-0·88]; p=0·015). There were no adverse events or treatment-related deaths in either group.
interpretationSRS of the surgical cavity in patients who have had complete resection of one, two, or three brain metastases significantly lowers local recurrence compared with that noted for observation alone. Thus, the use of SRS after brain metastasis resection could be an alternative to whole-brain radiotherapy.
fundingNational Institutes of Health.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.