Annals of Oncology 15:389-398, 2004
© 2004 European Society for Medical Oncology
Original Paper |
Neoadjuvant concurrent radiochemotherapy in locally advanced (IIIAIIIB) non-small-cell lung cancer: long-term results according to downstaging
Received 24 March 2003; revised 1 August 2003; accepted 17 December 2003Background:
To report the efficacy of induction treatment (IT) protocol with concurrent radiochemotherapy in locally advanced non-small-cell lung cancer (NSCLC), and to analyze downstaging as a surrogate end point.
Patients and methods:
Patients with histo- or cytologically confirmed stage IIIA or IIIB NSCLC were treated according to an IT protocol followed by surgery. Downstaging was assessed for all resected patients.
Results:
In the period between February 1992 and July 2000, 92 patients were enrolled in the study (57 IIIA, 35 IIIB). Response was observed in 63 patients; 56 patients underwent radical resection. Patients downstaged to stage 0I (DS 0I) showed a statistically significant improved disease-free survival (26.2 months pStage 0I versus 11.2 months pStage IIIII; P = 0.0116) and overall survival (median 32.5 months pStage 0I versus 18.3 months pStage IIIII; P = 0.025). Patients with DS 0I had a significantly lower probability (P = 0.0353) of developing distant metastases estimated in 0.2963 odds ratio.
Conclusion:
Neoadjuvant radiochemotherapy is feasible with good pathological DS results. Pathological downstaging was confirmed to have high predictive value. Its use is suggested in the short-term evaluation of induction protocols efficacy in locally advanced NSCLC.
Departments of 1 Radiation Oncology, 2 Thoracic Surgery, 3 Respiratory Physiology and 4 Radiology, Università Cattolica del S. Cuore; 5 Department of Medical Oncology, Libera Università Campus Bio-Medico, Rome, Italy
Key words: concurrent radiochemotherapy, downstaging, integrated therapies, neoadjuvant radiotherapy, non-small cell lung cancer, stage IIIA-IIIB
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