Annals of Oncology Advance Access published online on December 12, 2005
Annals of Oncology, doi:10.1093/annonc/mdj094
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1 Department of Radiotherapy, GROW, University Hospital Maastricht, Maastricht, The Netherlands; MAASTRO Clinic, Maastricht, The Netherlands
* To whom correspondence should be addressed. Background: We undertook a systematic review and literature-based meta-analysis to determine whether the timing of chest radiotherapy may influence the survival of patients with limited-stage small-cell lung cancer (LS-SCLC). Materials: Eligible randomised controlled clinical trials were identified according to the Cochrane Collaboration Guidelines, comparing different timing of chest radiotherapy in patients with LS-SCLC. Early chest irradiation was defined as beginning within 30 days after the start of chemotherapy. Results: Considering all seven eligible trials, the overall survival at 2 or 5 years was not significantly different between early or late chest radiotherapy. When only trials were considered that used platinum chemotherapy concurrent with chest radiotherapy, a significantly higher 5-year survival was observed when chest radiotherapy was started within 30 days after the start of chemotherapy (2-year survival: OR: 0.73, 95% CI 0.51-1.03, P = 0.07; 5-year survival: OR: 0.64, 95% CI 0.44-0.92, P = 0.02). This was even more pronounced when the overall treatment time of chest radiotherapy was less than 30 days. Conclusions: There are indications that the 5-year survival rates of patients with LS-SCLC are in favour of early chest radiotherapy, with a significant difference if the overall treatment time of chest radiation is less than 30 days.
Received July 19, 2005
Revised October 31, 2005
Accepted November 2, 2005
review
Systematic review and meta-analysis of randomised, controlled trials of the timing of chest radiotherapy in patients with limited-stage, small-cell lung cancer
D. De Ruysscher 1 *,
M. Pijls-Johannesma 2,
J. Vansteenkiste 3,
A. Kester 4,
I. Rutten 5,
and
P. Lambin 1
2 MAASTRO Clinic, Maastricht, The Netherlands
3 Respiratory Oncology Unit (Dept. Pulmonology) and Leuven Lung Cancer Group, University Hospital, Leuven, Belgium
4 Department of Methodology and Statistics, University Maastricht, Maastricht, The Netherlands
5 Department of Radiotherapy, University Hospital Liège, Liège, Belgium
D. De Ruysscher, E-mail: dirk.deruysscher{at}maastro.nl
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