Impact of BMI on the survival outcomes of non-small cell lung cancer patients treated with immune checkpoint inhibitors: a meta-analysis

Abstract Objectives ICIs have become the standard treatment for advanced NSCLC patients. Currently, PD-L1 is the most widely useful biomarker to predict ICI efficacy, but the sensitivity and specificity are limited. Therefore, the useful predictive biomarkers of ICI efficacy is urgently needed. BMI...

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Main Authors: Tongtong Zhang, Shuluan Li, Jianhua Chang, Yan Qin, Chao li
Format: Article
Language:English
Published: BMC 2023-10-01
Series:BMC Cancer
Subjects:
Online Access:https://doi.org/10.1186/s12885-023-11512-y
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author Tongtong Zhang
Shuluan Li
Jianhua Chang
Yan Qin
Chao li
author_facet Tongtong Zhang
Shuluan Li
Jianhua Chang
Yan Qin
Chao li
author_sort Tongtong Zhang
collection DOAJ
description Abstract Objectives ICIs have become the standard treatment for advanced NSCLC patients. Currently, PD-L1 is the most widely useful biomarker to predict ICI efficacy, but the sensitivity and specificity are limited. Therefore, the useful predictive biomarkers of ICI efficacy is urgently needed. BMI is an internationally used measure of body health. Obesity may affect ICI efficacy by changing T cell functions. This meta-analysis aimed to clarify the relationship between BMI and survival outcomes of NSCLC patients treated with ICIs. Methods A systematic review was conducted to identify studies that assessed the association between BMI and survival outcomes in patients treated with ICIs. OS was the primary endpoint, and PFS was the secondary endpoint. Random-effect models or fixed-effect models were utilized to combine study effects according to the Cochran Q and I 2 tests. Results Nine studies, including 4602 NSCLC patients treated with ICIs, that met the inclusion criteria were selected for this meta-analysis. There was no significant difference in PFS (HR 0.885; 95% CI 0.777–1.009, p = 0.068) or OS (HR 0.947; 95% CI 0.789–1.137, p = 0.560) between the low BMI group and the high BMI group. However, in the subgroup analysis, compared with normal-weight patients, overweight and obese patients achieved prolonged PFS (HR 0.862; 95% CI 0.760–0.978, p = 0.021) and OS (HR 0.818; 95% CI 0.741–0.902, p<0.0001). Conclusion Overweight and obese NSCLC patients tend to achieve prolonged survival time with ICI regimens. Further prospective studies are needed to strengthen the association between ICI outcomes and BMI levels.
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spelling doaj.art-fb1fc77272b747c08ff77c0017a9b19b2023-11-20T09:43:33ZengBMCBMC Cancer1471-24072023-10-0123111410.1186/s12885-023-11512-yImpact of BMI on the survival outcomes of non-small cell lung cancer patients treated with immune checkpoint inhibitors: a meta-analysisTongtong Zhang0Shuluan Li1Jianhua Chang2Yan Qin3Chao li4Department of Medical Oncology, National Cancer Center, National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeDepartment of Nutrition, Shenzhen Hospital, National Cancer Center, National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeDepartment of Medical Oncology, National Cancer Center, National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeDepartment of Medical Oncology, National Cancer Center, National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeDepartment of Pharmacy, Shenzhen Hospital, National Cancer Center, National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeAbstract Objectives ICIs have become the standard treatment for advanced NSCLC patients. Currently, PD-L1 is the most widely useful biomarker to predict ICI efficacy, but the sensitivity and specificity are limited. Therefore, the useful predictive biomarkers of ICI efficacy is urgently needed. BMI is an internationally used measure of body health. Obesity may affect ICI efficacy by changing T cell functions. This meta-analysis aimed to clarify the relationship between BMI and survival outcomes of NSCLC patients treated with ICIs. Methods A systematic review was conducted to identify studies that assessed the association between BMI and survival outcomes in patients treated with ICIs. OS was the primary endpoint, and PFS was the secondary endpoint. Random-effect models or fixed-effect models were utilized to combine study effects according to the Cochran Q and I 2 tests. Results Nine studies, including 4602 NSCLC patients treated with ICIs, that met the inclusion criteria were selected for this meta-analysis. There was no significant difference in PFS (HR 0.885; 95% CI 0.777–1.009, p = 0.068) or OS (HR 0.947; 95% CI 0.789–1.137, p = 0.560) between the low BMI group and the high BMI group. However, in the subgroup analysis, compared with normal-weight patients, overweight and obese patients achieved prolonged PFS (HR 0.862; 95% CI 0.760–0.978, p = 0.021) and OS (HR 0.818; 95% CI 0.741–0.902, p<0.0001). Conclusion Overweight and obese NSCLC patients tend to achieve prolonged survival time with ICI regimens. Further prospective studies are needed to strengthen the association between ICI outcomes and BMI levels.https://doi.org/10.1186/s12885-023-11512-yBMIICIsNSCLC
spellingShingle Tongtong Zhang
Shuluan Li
Jianhua Chang
Yan Qin
Chao li
Impact of BMI on the survival outcomes of non-small cell lung cancer patients treated with immune checkpoint inhibitors: a meta-analysis
BMC Cancer
BMI
ICIs
NSCLC
title Impact of BMI on the survival outcomes of non-small cell lung cancer patients treated with immune checkpoint inhibitors: a meta-analysis
title_full Impact of BMI on the survival outcomes of non-small cell lung cancer patients treated with immune checkpoint inhibitors: a meta-analysis
title_fullStr Impact of BMI on the survival outcomes of non-small cell lung cancer patients treated with immune checkpoint inhibitors: a meta-analysis
title_full_unstemmed Impact of BMI on the survival outcomes of non-small cell lung cancer patients treated with immune checkpoint inhibitors: a meta-analysis
title_short Impact of BMI on the survival outcomes of non-small cell lung cancer patients treated with immune checkpoint inhibitors: a meta-analysis
title_sort impact of bmi on the survival outcomes of non small cell lung cancer patients treated with immune checkpoint inhibitors a meta analysis
topic BMI
ICIs
NSCLC
url https://doi.org/10.1186/s12885-023-11512-y
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