Aims: The aim of this observational study was the evaluation of toxicity, local control and overall survival in non-small cell lung cancer (NSCLC) oligometastatic patients who had undergone stereotactic ablative body radiotherapy (SABR) for lung metastatic lesions. Materials and methods: SABR was carried out in oligometastatic patients with controlled primary tumour (adequate pulmonary function). We adopted the following dose prescriptions according to the site and the maximum diameter of the lung lesions: 60Gy in three fractions for peripheral lesions with diameter ≤2cm, 48Gy in four fractions for peripheral lesions between 2 and 5cm and 60Gy in eight fractions for central lesions. A radiological response was defined according to RECIST criteria. Toxicity was recorded according to the Common Toxicity Criteria version 4.0. Results: Between October 2010 and December 2014, 60 NSCLC patients with 90 lung lesions in total were treated at our institution. A radiological response was obtained in most patients. No pulmonary toxicity grade 4, chest pain or rib fracture occurred. The median follow-up from diagnosis was 28 months (range 5.4-104.5 months). The local control at 2 years was 88.9%. Overall survival at 1 and 2 years was 94.5 and 74.6%, respectively. Conclusion: SABR is well tolerated with a good radiological response and toxicity profile. Discussion within a multidisciplinary team is crucial to identify the oligometastatic patients who would probably benefit from ablative local therapy.
- Oligometastatic disease
- Volumetric modulated arc therapy
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging