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Mean overall survival was 23.7 months (95% CI 21.3- 26.1). Overall survival (OS) at 1 year is 80% and 2 years OS is estimated at 75%. Local control (LC) rate at 1 year was 96% and disease free rate was 84%. Analysis of failure rates showed 4% was in field local recurrence, 4% regional recurrence and 7% distant metastasis. These were similar to outcomes in Cardiff centre (L Sweeney) reporting 1-year OS at 82%, 2-year OS 67%; and LC at 1 year 97.8%.
Early toxicity data showed 57% (51/89) of patients did not report any grade of toxicity. 9% (8/89) reported grade 1 toxicity of shortness of breath (SOB), chest pain, cough and fatigue. 10% (9/89) reported grade 2 toxicity of SOB, chest wall pain; with 1 patient reporting pneumonitis and oesophagitis each. Grade 3 toxicity was only reported in 1 patient (1%) with rib fracture but patient remains alive.