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Published on: February 12, 2017
Split-course chemoradiotherapy for locally advanced non-small cell lung cancer: a single-institution experience of
Benjamin T Gielda1, James C Marsh, Thomas W Zusag
1Department of Radiation Oncology, Rush University Medical Center, Chicago, Illinois 60612, USA. Benjamin_gielda@rush.edu
Background:
Concurrent chemoradiotherapy (CRT) is a standard of care in the treatment of unresectable locally advanced non-small cell lung cancer (NSCLC). At Rush University Medical Center, patients with locally advanced NSCLC are treated with split-course CRT in an attempt to maximize efficacy and tolerability. We reviewed our experience in advanced NSCLC since 1999. Subset analysis was performed on poor-risk patients.
Methods:
All patients with a diagnosis of stage IIIA/IIIB NSCLC and treated with definitive split-course CRT between January 1999 and December 2008 were included in this retrospective study. The primary end point was overall survival. Poor-risk patients were defined in accordance with ongoing cooperative group trials.
Results:
One hundred forty-four patients were identified, 35% stage IIIA and 65% stage IIIB. There were 52 poor-risk patients and 92 average-risk patients. Median survival for all patients was 20.4 months with an actuarial 32.1% 3-year overall survival rate. Poor-risk patients demonstrated a median survival of 22.1 months, statistically indistinguishable from the remainder of the cohort (p = 0.21). Acute esophagitis was mild, with a 3% rate of grade 3 esophagitis and no cases of grade 4 or 5.
Conclusions:
Split-course CRT appeared effective and was delivered with a favorable toxicity profile. Poor-risk patients experienced better than expected survival. Prospective evaluation of split-course CRT must be completed before it can be considered a standard treatment option in locally advanced NSCLC.
