Open AccessInfluence of body mass index on the therapeutic efficacy of gemcitabine plus cisplatin and overall survival in lung squamous cell carcinoma
Author(s) -
Zhong Jia,
Zheng Qiwen,
Gao Emei,
Dong Zhi,
Zhao Jun,
An Tongtong,
Wu Meina,
Zhuo Minglei,
Wang Yuyan,
Li Jianjie,
Wang Shuhang,
Yang Xue,
Chen Hanxiao,
Jia Bo,
Wang Jingjing,
Wang Ziping
Publication year - 2018
Publication title -
thoracic cancer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.823
H-Index - 28
eISSN - 1759-7714
pISSN - 1759-7706
DOI - 10.1111/1759-7714.12581
Subject(s) - medicine , gemcitabine , regimen , body mass index , oncology , retrospective cohort study , lung cancer , progression free survival , subgroup analysis , lung , cisplatin , gastroenterology , chemotherapy , confidence interval
Background Gemcitabine plus cisplatin (GP) is commonly used to treat lung squamous cell carcinoma (SCC); however, it is not clear which subgroup of lung SCC patients could benefit most from GP treatment. We explored the predictive factors in lung SCC patient cohorts. Methods Seventy‐eight lung SCC patients treated with a first‐line GP regimen were enrolled in this retrospective cohort study. Progression‐free survival (PFS) and overall survival (OS) were estimated using the Kaplan–Meier method. Classification tree models were used to explore the risk factors for PFS and OS in these patients. Results The median PFS and OS in SCC patients treated with a GP regimen were 6.0 and 13.6 months, respectively. Three terminal subgroups were formed for both PFS and OS. The subgroup with a body mass index (BMI) > 23.94 kg/m 2 and aged ≤ 54.5 had the longest PFS (9.0 months); the subgroup with a BMI < 23.94 kg/m 2 and aged ≤ 54.5 had the shortest PFS (4.05 months). Patients with an objective response (partial or complete response) to treatment had the longest OS (20.0 months), while patients with a BMI ≤ 26.92 kg/m 2 and stable or progressive disease as the best response had the shortest OS (11.2 months). Conclusions BMI and age may be predictors of PFS in lung SCC patients who receive GP treatment. BMI and best response to GP treatment predicts OS in such patients. Patients’ clinical pathological characteristics may be used to predict the therapeutic efficacy of chemotherapy and survival.