First-Line Immunochemotherapy Versus Palliative Chemotherapy Plus Definitive Radiation Therapy for Metastatic Nasopharyngeal Carcinoma: A Matched Cohort Study

Background The combined use of immune checkpoint inhibitors (ICIs) with palliative chemotherapy (PCT) is a promising first-line treatment for de novo metastatic nasopharyngeal carcinoma (mNPC). However, the efficacy of ICIs with PCT vs PCT with definitive radiation therapy (DRT) remain unclear. Meth...

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Main Authors: Zhen-Chong Yang, Ting Liu, Yan-Zhou Chen, Chun-Yan Guo, Li-Ting Liu, Sai-Lan Liu, Qiu-Yan Chen, Hai-Qiang Mai, Shan-Shan Guo
Format: Article
Language:English
Published: SAGE Publishing 2022-08-01
Series:Cancer Control
Online Access:https://doi.org/10.1177/10732748221124868
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author Zhen-Chong Yang
Ting Liu
Yan-Zhou Chen
Chun-Yan Guo
Li-Ting Liu
Sai-Lan Liu
Qiu-Yan Chen
Hai-Qiang Mai
Shan-Shan Guo
author_facet Zhen-Chong Yang
Ting Liu
Yan-Zhou Chen
Chun-Yan Guo
Li-Ting Liu
Sai-Lan Liu
Qiu-Yan Chen
Hai-Qiang Mai
Shan-Shan Guo
author_sort Zhen-Chong Yang
collection DOAJ
description Background The combined use of immune checkpoint inhibitors (ICIs) with palliative chemotherapy (PCT) is a promising first-line treatment for de novo metastatic nasopharyngeal carcinoma (mNPC). However, the efficacy of ICIs with PCT vs PCT with definitive radiation therapy (DRT) remain unclear. Methods Patients with mNPC who received first-line immunochemotherapy (ICI + PCT) or PCT + DRT were included. Propensity score matching (PSM) was applied to balance potential confounders between patients who did and did not undergo DRT (at a ratio of 1:1). Progression free survival (PFS) and overall survival (OS) were compared between the 2 groups using a log-rank test and Cox proportional hazard model. Results Among all participants, 149 received ICI + PCT. After PSM, 149 patients were included in the PCT + DRT group. First-line immunochemotherapy was associated with significantly improved PFS (median 9.0 months vs 12.0 months, P < .001) and OS (median 12.5 months vs 19.9 months, P < .001). Subgroup analysis revealed that tumor response to immunochemotherapy, metastatic organs, and number of metastatic sites potentially affected the efficacy of DRT after first-line immunochemotherapy. Conclusion Compared with PCT + DRT, first-line immunochemotherapy was associated with improved PFS and OS in patients with mNPC but not in patients with unfavorable tumor response and metastasis involving the liver, distant nodes, or multiple sites.
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spelling doaj.art-51792a83ad574c3491e8267abbac9b332022-12-22T04:20:15ZengSAGE PublishingCancer Control1073-27482022-08-012910.1177/10732748221124868First-Line Immunochemotherapy Versus Palliative Chemotherapy Plus Definitive Radiation Therapy for Metastatic Nasopharyngeal Carcinoma: A Matched Cohort StudyZhen-Chong YangTing LiuYan-Zhou ChenChun-Yan GuoLi-Ting LiuSai-Lan LiuQiu-Yan ChenHai-Qiang MaiShan-Shan GuoBackground The combined use of immune checkpoint inhibitors (ICIs) with palliative chemotherapy (PCT) is a promising first-line treatment for de novo metastatic nasopharyngeal carcinoma (mNPC). However, the efficacy of ICIs with PCT vs PCT with definitive radiation therapy (DRT) remain unclear. Methods Patients with mNPC who received first-line immunochemotherapy (ICI + PCT) or PCT + DRT were included. Propensity score matching (PSM) was applied to balance potential confounders between patients who did and did not undergo DRT (at a ratio of 1:1). Progression free survival (PFS) and overall survival (OS) were compared between the 2 groups using a log-rank test and Cox proportional hazard model. Results Among all participants, 149 received ICI + PCT. After PSM, 149 patients were included in the PCT + DRT group. First-line immunochemotherapy was associated with significantly improved PFS (median 9.0 months vs 12.0 months, P < .001) and OS (median 12.5 months vs 19.9 months, P < .001). Subgroup analysis revealed that tumor response to immunochemotherapy, metastatic organs, and number of metastatic sites potentially affected the efficacy of DRT after first-line immunochemotherapy. Conclusion Compared with PCT + DRT, first-line immunochemotherapy was associated with improved PFS and OS in patients with mNPC but not in patients with unfavorable tumor response and metastasis involving the liver, distant nodes, or multiple sites.https://doi.org/10.1177/10732748221124868
spellingShingle Zhen-Chong Yang
Ting Liu
Yan-Zhou Chen
Chun-Yan Guo
Li-Ting Liu
Sai-Lan Liu
Qiu-Yan Chen
Hai-Qiang Mai
Shan-Shan Guo
First-Line Immunochemotherapy Versus Palliative Chemotherapy Plus Definitive Radiation Therapy for Metastatic Nasopharyngeal Carcinoma: A Matched Cohort Study
Cancer Control
title First-Line Immunochemotherapy Versus Palliative Chemotherapy Plus Definitive Radiation Therapy for Metastatic Nasopharyngeal Carcinoma: A Matched Cohort Study
title_full First-Line Immunochemotherapy Versus Palliative Chemotherapy Plus Definitive Radiation Therapy for Metastatic Nasopharyngeal Carcinoma: A Matched Cohort Study
title_fullStr First-Line Immunochemotherapy Versus Palliative Chemotherapy Plus Definitive Radiation Therapy for Metastatic Nasopharyngeal Carcinoma: A Matched Cohort Study
title_full_unstemmed First-Line Immunochemotherapy Versus Palliative Chemotherapy Plus Definitive Radiation Therapy for Metastatic Nasopharyngeal Carcinoma: A Matched Cohort Study
title_short First-Line Immunochemotherapy Versus Palliative Chemotherapy Plus Definitive Radiation Therapy for Metastatic Nasopharyngeal Carcinoma: A Matched Cohort Study
title_sort first line immunochemotherapy versus palliative chemotherapy plus definitive radiation therapy for metastatic nasopharyngeal carcinoma a matched cohort study
url https://doi.org/10.1177/10732748221124868
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