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Published on: February 12, 2017
Neoadjuvant concurrent radiochemotherapy in locally advanced (IIIA-IIIB) non-small-cell lung cancer: long-term
L Trodella1, P Granone, S Valente
1Department of Radiation Oncology, Università Cattolica del S Cuore, Rome, Italy. ltrodella@rm.unicatt.it
Background:
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 0-I (DS 0-I) showed a statistically significant improved disease-free survival (26.2 months pStage 0-I versus 11.2 months pStage II-III; P=0.0116) and overall survival (median 32.5 months pStage 0-I versus 18.3 months pStage II-III; P=0.025). Patients with DS 0-I 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.
