title: [A phase II clinical trial of celecoxib combined with platinum-based chemotherapy in the treatment of patients with advanced NSCLC as first-line treatment.].
abstract: BACKGROUND
  Currently, platinum-based regimes are standard first-line chemotherapy for non-small cell lung cancer. The aim of this study is to evaluate the efficacy, influencing factors and adverse events of celecoxib plus platinum-based chemotherapy in advanced non-small cell lung cancer as first-line treatment.
  
  
  METHODS
  Previously untreated patients of advanced non-small cell lung cancer with COX-2 positive, confirmed by immunohistochemical staining, were randomized to receive GP, NP or TP regimens. Celecoxib of 400 mg Bid was given, po 5-7 days before chemotherapy,and not stopped until evidence of disease progression or toxicity. Adverse events were cirtified according to NCI-CTC criteria. Kaplan-Meier method was used to analyze the survival rate. COX regression was used to define the predictive factors. Primary endpoint: median survival time, 1-year survival rate and median progression free survival time. Secondary endpoint: response rate and toxicity.
  
  
  RESULTS
  Forty-four evaluable patients were enrolled in the study from February 2005 to March 2007. Response rate was 45%, disease control rate 59%. Median progression free survival time and median survival time were 6months (95%CI: 4-8 months) and 18 months (95%CI: 9-27months), respectively. One-year survival rate was 68%. Numbers of chemotherapy cycles and overall evaluation were the predictive factors for PFS in COX model (P =0.023 and 0.000). No factor was defined to affect survival time. Neutropenia and nausea/vomit were the most common toxicity.
  
  
  CONCLUSIONS
  Celecoxib combined with platinum-based chemotherapy appears to be well tolerated and demonstrates encouraging activity in patients of previously untreated advanced NSCLC.
authors: Department of Thoracic Medicine, Peking University School of Oncology Beijing Cancer Hospital & Institute, Beijing 100036, China.
authors: Zhijie
authors: Z
authors: Wang
authors: Jianchun
authors: J
authors: Duan
authors: Qingzhi
authors: Q
authors: Guo
authors: Zhigang
authors: Z
authors: Wei
authors: Weicheng
authors: W
authors: Xue
authors: Meina
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authors: Wu
authors: Jun
authors: J
authors: Zhao
authors: Lu
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authors: Yang
authors: Tongtong
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authors: An
authors: Xuyi
authors: X
authors: Liu
authors: Jie
authors: J
authors: Wang