Identifying the target NSCLC patient for maintenance therapy: an analysis from a placebo-controlled, phase III trial of maintenance pemetrexed (H3E-MC-JMEN).

Identifying the target NSCLC patient for maintenance therapy: an analysis from a placebo-controlled, phase III trial of maintenance pemetrexed (H3E-MC-JMEN).
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DOI:
10.1093/annonc/mdt123
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发表时间:
2013-06
期刊:
Annals of oncology : official journal of the European Society for Medical Oncology
影响因子:
--
通讯作者:
Belani CP
Belani CP
中科院分区:
其他
文献类型:
--
作者:
Obasaju C;Bowman L;Wang P;Shen W;Winfree KB;Smyth EN;Boye ME;John W;Brodowicz T;Belani CP

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这是一项对晚期非小细胞肺癌(NSCLC) III期培美曲塞维持研究中非鳞状组织学患者的事后分析。采用肺癌症状量表(LCSS)计算6个症状项基线时的平均症状负担指数(ASBI)均值。采用调整人口统计学/临床因素的Cox比例风险模型,分析低、高症状负担(LSB、ASBI < 25; HSB、ASBI≥25)亚组和工作状态(PS: 0、1)亚组治疗对无进展生存期(PFS)和总生存期(OS)的影响。在LSB患者中,培美曲塞的PFS和OS明显长于安慰剂[PFS:中位5.1个月对2.4个月,风险比(HR) 0.49, P < 0.0001;OS:中位17.5个月vs . 11.0个月,HR 0.63, P = 0.0012]和ps0患者(PFS:中位5.5个月vs . 1.7个月,HR 0.36, P < 0.0001; OS:中位17.7个月vs . 10.3个月,HR 0.54, P = 0.0019)。HSB患者(中位3.7个月vs 2.8个月,HR 0.50, P = 0.0033)和ps1患者(中位4.4个月vs 2.8个月,HR 0.60, P = 0.0002)出现了更长的PFS,但没有出现OS。ASBI和PS与非鳞状NSCLC患者的生存相关,提示培美曲塞对诱导后LSB或PS 0患者有用。
This was a post hoc analysis of patients with non-squamous histology from a phase III maintenance pemetrexed study in advanced non-small cell lung cancer (NSCLC). The six symptom items' [average symptom burden index (ASBI)] mean at baseline was calculated using the lung cancer symptom scale (LCSS). Low and high symptom burden (LSB, ASBI < 25; HSB, ASBI ≥ 25) and performance status (PS: 0, 1) subgroups were analyzed for treatment effect on progression-free survival (PFS) and overall survival (OS) using the Cox proportional hazard models adjusted for demographic/clinical factors. Significantly longer PFS and OS for pemetrexed versus placebo occurred in LSB patients [PFS: median 5.1 versus 2.4 months, hazard ratio (HR) 0.49, P < 0.0001; OS: median 17.5 versus 11.0 months, HR 0.63, P = 0.0012] and PS 0 patients (PFS: median 5.5 versus 1.7 months, HR 0.36, P < 0.0001; OS: median 17.7 versus 10.3 months, HR 0.54, P = 0.0019). Significantly longer PFS, but not OS, occurred in HSB patients (median 3.7 versus 2.8 months, HR 0.50, P = 0.0033) and PS 1 patients (median 4.4 versus 2.8 months, HR 0.60, P = 0.0002). ASBI and PS are associated with survival for non-squamous NSCLC patients, suggesting that maintenance pemetrexed is useful for LSB or PS 0 patients following induction.
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