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High-dose 3-dimensional conformal radiotherapy with concomitant vinorelbine plus carboplatin in patients with non-small cell lung cancer: A feasibility study

  • Authors:
    • Qiang Lin
    • Jun Wang
    • Yue'e Liu
    • Huiling Su
    • Na Wang
    • Yuehua Huang
    • Chao-Xing Liu
    • Ping Zhang
    • Yannan Zhao
    • Kun Chen
  • View Affiliations

  • Published online on: May 16, 2011     https://doi.org/10.3892/ol.2011.317
  • Pages: 669-674
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Abstract

The aim of this study was to evaluate the feasibility of high-dose 3-dimensional conformal radiotherapy (3DCRT) (70 Gy) with concomitant vinorelbine (NVB) plus carboplatin (CBP) chemotherapy in patients with non-small cell lung cancer (NSCLC). Patients with advanced NSCLC were treated with 3-dimensional conformal radiotherapy in conventional fractionation: 2 Gy/fraction, 1 fraction/day, 5 fractions/week; total dose 70 Gy. The radiotherapy planning of every case had met the following conditions: the percentage of total lung volume receiving 20 Gy (V20) ≤30% and the percentage of total lung volume receiving 30 Gy (V30) ≤20%. Chemotherapy was commenced on the first day of radiotherapy: NVB 25 mg/m2, day 1 and day 8, CBP at AUC of 5 mg/ml-1.min-1, day 8, repeated for 28 days, two concomitant cycles during radiotherapy, and not more than 4 cycles following radiotherapy. A total of 37 patients were recruited and each of them completed the entire radiation procedure. No Grade V toxicity was observed within the group. The hematological toxicity rates were: Grade III/IV neutropenia was observed in 18.9% (7/37) of cases, Grade III/IV thrombo-cytopenia in 8.1% (3/37) of cases, but no cases of Grade III/IV anemia were noted. For non-hematological toxicities the rates were: Grade III radiation pneumonitis, 8.1% (3/37) of cases; Grade III radiation esophagitis, 13.5% (5/37); but no cases of Grade IV/V non-hematological toxicities. High-dose 3DCRT also achieved a favorable efficacy: the complete response (CR) rate was 13.5% (5/37) and the partial response (PR) rate was 64.9% (24/37). The total response (CR+PR) rate was 78.4% (29/37). The median survival time was 12 months and the 1-year overall survival rate was 45.1%. Given that 35% of patients in the study had stage IV disease, the survival results were comparable with other similar studies. In conclusion, in our small-sample exploratory study, the high‑dose regimen of 70 Gy using 3DCRT with concomitant NVB plus CBP was feasible for patients with NSCLC. Further evaluation of this regimen is ongoing in a prospective controlled phase II trial.
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July-August 2011
Volume 2 Issue 4

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Spandidos Publications style
Lin Q, Wang J, Liu Y, Su H, Wang N, Huang Y, Liu C, Zhang P, Zhao Y, Chen K, Chen K, et al: High-dose 3-dimensional conformal radiotherapy with concomitant vinorelbine plus carboplatin in patients with non-small cell lung cancer: A feasibility study. Oncol Lett 2: 669-674, 2011
APA
Lin, Q., Wang, J., Liu, Y., Su, H., Wang, N., Huang, Y. ... Chen, K. (2011). High-dose 3-dimensional conformal radiotherapy with concomitant vinorelbine plus carboplatin in patients with non-small cell lung cancer: A feasibility study. Oncology Letters, 2, 669-674. https://doi.org/10.3892/ol.2011.317
MLA
Lin, Q., Wang, J., Liu, Y., Su, H., Wang, N., Huang, Y., Liu, C., Zhang, P., Zhao, Y., Chen, K."High-dose 3-dimensional conformal radiotherapy with concomitant vinorelbine plus carboplatin in patients with non-small cell lung cancer: A feasibility study". Oncology Letters 2.4 (2011): 669-674.
Chicago
Lin, Q., Wang, J., Liu, Y., Su, H., Wang, N., Huang, Y., Liu, C., Zhang, P., Zhao, Y., Chen, K."High-dose 3-dimensional conformal radiotherapy with concomitant vinorelbine plus carboplatin in patients with non-small cell lung cancer: A feasibility study". Oncology Letters 2, no. 4 (2011): 669-674. https://doi.org/10.3892/ol.2011.317