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- W2089257078 abstract "Background Our previous individual patient data (IPD) meta-analysis showed that chemotherapy improved survival in patients curatively treated for non-metastatic head and neck squamous cell carcinoma (HNSCC), with a higher benefit with concomitant chemotherapy. However the heterogeneity of the results limited the conclusions and prompted us to confirm the results on a more complete database by adding the randomised trials conducted between 1994 and 2000. Methods The updated IPD meta-analysis included trials comparing loco-regional treatment to loco-regional treatment + chemotherapy in HNSCC patients and conducted between 1965 and 2000. The log-rank-test, stratified by trial, was used to compare treatments. The hazard ratios of death were calculated. Results Twenty-four new trials, most of them of concomitant chemotherapy, were included with a total of 87 trials and 16,485 patients. The hazard ratio of death was 0.88 (p < 0.0001) with an absolute benefit for chemotherapy of 4.5% at 5 years, and a significant interaction (p < 0.0001) between chemotherapy timing (adjuvant, induction or concomitant) and treatment. Both direct (6 trials) and indirect comparisons showed a more pronounced benefit of the concomitant chemotherapy as compared to induction chemotherapy. For the 50 concomitant trials, the hazard ratio was 0.81 (p < 0.0001) and the absolute benefit 6.5% at 5 years. There was a decreasing effect of chemotherapy with age (p = 0.003, test for trend). Conclusion The benefit of concomitant chemotherapy was confirmed and was greater than the benefit of induction chemotherapy." @default.
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- W2089257078 date "2009-07-01" @default.
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- W2089257078 title "Meta-analysis of chemotherapy in head and neck cancer (MACH-NC): An update on 93 randomised trials and 17,346 patients" @default.
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- W2089257078 doi "https://doi.org/10.1016/j.radonc.2009.04.014" @default.
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