scholarly journals Radiation Dose Painting with Concurrent Chemotherapy for Locally Advanced Non-Small Cell Lung Cancer

2017 ◽  
Vol 99 (2) ◽  
pp. E500-E501
Author(s):  
J. Wang
2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e20529-e20529
Author(s):  
Jiahua Lv ◽  
Junchao Wang ◽  
Hongyuan Jia ◽  
Long Liang ◽  
Lei Wu ◽  
...  

e20529 Background: Dose-painting radiotherapy is a promising technique which enables different dose distribution to different areas within the lung cancer. However, the efficacy and safety of this irradiation technique are still uncertain. In this study, we observed and analyzed the outcomes of dose-painting radiotherapy with chemotherapy for the locally advanced non-small cell lung cancer. Methods: Patients with stage III non-small cell lung cancer undergoing chemoradiotherapy were enrolled in this study. The dose-painting target was defined according to the distance between the tumor and the mediastinum (GTVwithin 2cm and GTVout-of 2cm). Doses of 60-80 Gy( 3-4Gy/fraction, bid) and 40-60 Gy (2-3Gy/fraction, bid) were prescribed to the GTVwithin 2cm and GTVout-of 2cm, respectively, in 20 fractions, using simultaneous integrated boost. All the patients received 2-4 cycles of chemotherapy using cisplatin plus paclitaxel or pemetrexed. Results: In total, 65 patients were included in this study. Median follow-up was 66.1 months (range 8.0-117.3months). The incidence of ≥Grade 2 radiation pneumonitis and esophagitis were was 30.8% and 38.5%, respectively. The 1, 3, 5-year OS and PFS were 78.4% and 58.5%, 32.3% and 26.1%, 18.5% and 13.8%, respectively. Late radiation esophagitis were seen in 3 patients and 2 patients were observed severe pulmonary fibrosis. None of the patients experienced fatal bronchopulmonary hemorrhage or tracheal fistula. Conclusions: Radiation dose painting with concurrent chemotherapy is feasible and well tolerated for locally advanced non-small cell lung cancer. It needs to be further confirmed by large randomized controlled clinical studies.


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