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  • Title: Escalated dose for non-small-cell lung cancer with accelerated hypofractionated three-dimensional conformal radiation therapy.
    Author: Thirion P, Holmberg O, Collins CD, O'Shea C, Moriarty M, Pomeroy M, O'Sullivan C, Buckney S, Armstrong J.
    Journal: Radiother Oncol; 2004 May; 71(2):163-6. PubMed ID: 15110449.
    Abstract:
    BACKGROUND AND PURPOSE: To prospectively assess the feasibility and efficacy of a hypofractionated accelerated radiotherapy regimen (72 Gy in 24 daily fractions, 3 Gy per fraction) in patients (pts) with non-resectable non-small-cell lung cancer (NSCLC). MATERIAL AND METHODS: We included 25 pts with a histologically or cytologically proven NSCLC, with KPS > or = 70 and < or =10% weight loss over prior three months, and with tumour stage I/II medically inoperable (9 pts) or non-resectable stage III a/b without pleural effusion (16 pts). Eleven pts received induction chemotherapy. No more than 30% of the combined lung volume could receive more than 25 Gy and the maximal biological effective dose to the spinal cord was maintained below 44 Gy. RESULTS: No grade-4 acute toxicity event was reported. Two pts had a treatment break because of grade-3 acute oesophagitis. Twenty-two pts were evaluable for long-term toxicity (median follow-up=9.7 months, range 4 to 30.2 months). There were 4 Grade-1 pulmonary and 2 Grade-1 oesophageal long-term toxicity events. Twenty-two pts were evaluable for tumour response with 7 complete and 8 partial responses, 5 stable diseases and 2 progressive diseases. The actuarial 1-year overall and thoracic-progression-free survival rates were 68% and 72% respectively. CONCLUSIONS: This study demonstrates the feasibility of the experimental radiotherapy schedule, however more data are needed to confirm its efficacy.
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