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Journal Article
Multicenter Study
Neoadjuvant chemotherapy in local-regionally advanced nasopharyngeal carcinoma: A National Cancer Database analysis.
Laryngoscope 2018 December
OBJECTIVES/HYPOTHESIS: To assess patterns of care and outcomes with the use of neoadjuvant chemotherapy followed by definitive radiation in local-regionally advanced nasopharyngeal carcinoma.
STUDY DESIGN: Retrospective database analysis.
METHODS: We queried the National Cancer Database for patients with T3-4N2 or T1-4N3 nasopharyngeal carcinoma who received concurrent chemoradiotherapy or neoadjuvant chemotherapy followed by radiation. Overall survival (OS) was analyzed using the Kaplan-Meier method, propensity-score matching, and a Cox proportional hazards model adjusting for demographic and disease-specific prognostic factors.
RESULTS: From 2004 to 2014, a total of 1,731 patients were identified, including 504 patients (27%) who received neoadjuvant chemotherapy. Neoadjuvant chemotherapy was used more frequently in years 2008 to 2010 (34%) and 2011 to 2014 (30%) compared with 2004 to 2007 (22%) (χ2 P = .001). At a median follow-up of 36.6 months, patients had 3-year OS of 66% in the neoadjuvant group compared with 70% in those who received concurrent chemoradiotherapy (log rank P = .29). On subgroup analysis by histology, T stage, and N stage, there remained no differences in OS between the two groups. On multivariable analysis, there was no significant survival difference associated with neoadjuvant chemotherapy (adjusted hazard ratio [HR]: 1.05, 95% confidence interval [CI]: 0.89-1.25, P = .54). In a propensity score-matched population of 1,008 patients (504 with neoadjuvant therapy and 504 without), there was no significant survival difference associated with neoadjuvant chemotherapy (H: 1.13, 95% CI: 0.93-1.38, P = .22).
CONCLUSIONS: Neoadjuvant chemotherapy was used in over 25% of patients, and its use is increasing. However, neoadjuvant chemotherapy was not associated with any differences in survival compared to concurrent chemoradiotherapy.
LEVEL OF EVIDENCE: 4 Laryngoscope, 128:2770-2777, 2018.
STUDY DESIGN: Retrospective database analysis.
METHODS: We queried the National Cancer Database for patients with T3-4N2 or T1-4N3 nasopharyngeal carcinoma who received concurrent chemoradiotherapy or neoadjuvant chemotherapy followed by radiation. Overall survival (OS) was analyzed using the Kaplan-Meier method, propensity-score matching, and a Cox proportional hazards model adjusting for demographic and disease-specific prognostic factors.
RESULTS: From 2004 to 2014, a total of 1,731 patients were identified, including 504 patients (27%) who received neoadjuvant chemotherapy. Neoadjuvant chemotherapy was used more frequently in years 2008 to 2010 (34%) and 2011 to 2014 (30%) compared with 2004 to 2007 (22%) (χ2 P = .001). At a median follow-up of 36.6 months, patients had 3-year OS of 66% in the neoadjuvant group compared with 70% in those who received concurrent chemoradiotherapy (log rank P = .29). On subgroup analysis by histology, T stage, and N stage, there remained no differences in OS between the two groups. On multivariable analysis, there was no significant survival difference associated with neoadjuvant chemotherapy (adjusted hazard ratio [HR]: 1.05, 95% confidence interval [CI]: 0.89-1.25, P = .54). In a propensity score-matched population of 1,008 patients (504 with neoadjuvant therapy and 504 without), there was no significant survival difference associated with neoadjuvant chemotherapy (H: 1.13, 95% CI: 0.93-1.38, P = .22).
CONCLUSIONS: Neoadjuvant chemotherapy was used in over 25% of patients, and its use is increasing. However, neoadjuvant chemotherapy was not associated with any differences in survival compared to concurrent chemoradiotherapy.
LEVEL OF EVIDENCE: 4 Laryngoscope, 128:2770-2777, 2018.
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