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Q. Li
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P3.01 - Poster Session/ Treatment of Advanced Diseases – NSCLC (ID 208)
- Event: WCLC 2015
- Type: Poster
- Track: Treatment of Advanced Diseases - NSCLC
- Presentations: 1
- Moderators:
- Coordinates: 9/09/2015, 09:30 - 17:00, Exhibit Hall (Hall B+C)
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P3.01-010 - Multivariate Survival Analysis of China IRESSA Charitable Aid Project in Shanghai (ID 2671)
09:30 - 09:30 | Author(s): Q. Li
- Abstract
Background:
Since Jan 2007, China Charity Federation launched IRESSA Charitable Aid Project for advanced non small cell lung cancer which oral IRESSA was effective for 6 months and have failed previous chemotherapy or received first line IRESSA for EGFR mutation positive. This study investigated the survival and correlation influencing factor of China Charitable Aid Project in shanghai by COX multivariate analysis .
Methods:
A retrospective investigation enrolled advanced non small cell lung cancer patient of IRESSA Charitable Aid Project from Jan 2007 to 30 Jun 2013 at 7 centre in Shanghai . The patients oral IRESSA was effective for 6 months who have failed previous chemotherapy or received first line IRESSA for EGFR mutation positive. IRESSA 250mg QD was taken and prescribed monthly. Tumor assessment was performed every 8 weeks, patients continued to receive IRESSA until disease progression (timely withdraw) or unacceptable toxicity or no benefit from this project which was considered as slower progression(late withdraw). The patient were Followed up until 30 Aug 2014. The primary end point was OS and correlation influencing factor. Using the Kaplan-Meier and COX proportional hazards model analyze the correlation between survival and age, gender, smoking status, pathology, indications and timely withdraw of IRESSA.
Results:
A total of 1066 patients were enrolled, the median age was 64, including 339 cases of greater than or equal to 70. Most patients were female (845,79.3%) and no-smokers (992,93.1%), and 94.1% was adenocarcinoma. Indication for second and multiple line patients were 96.1%(1024). The midian PFS was 33 months (95%CI:29.8-36.2），and the MST was 37 months (95%CI:32.5-41.5). COX multivariate analysis revealed timely withdraw group was significantly longer OS ( hazard ration 1.627; 95%CI:1.378-1.922, p=0.000) , more than 70 years old, smoking and indication for second line patient was significantly worse OS (hazard ration 0.692; 95%CI:0.587-0.816, p=0.000; 0.714; 95%CI: 0.531-0.960, p=0.026; 0.498 ;95%CI: 0.265-0.935,p=0.03 respectively.
Conclusion:
96.1% of the patient in Iressa charitable aid projects were second or multiple line treatment due to chemotherapy failure, PFS and OS still reached 33 and 37 months, significantly better than the historical reports. The possible reason was enrolled patients with IRESSA effective for 6 months , It could be EGFR mutation positive, of which no-smoking patients ratio were as high as 93.1%, they maybe have a better prognosis. Multivariate analysis showed OS was significantly prolonged in timely withdraw group after disease deteriorate.
