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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Cancer
2017 ; 8
(13
): 2532-2541
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The Clinical Effect of Metformin on the Survival of Lung Cancer Patients with
Diabetes: A Comprehensive Systematic Review and Meta-analysis of Retrospective
Studies
#MMPMID28900491
Cao X
; Wen ZS
; Wang XD
; Li Y
; Liu KY
; Wang X
J Cancer
2017[]; 8
(13
): 2532-2541
PMID28900491
show ga
Preclinical investigations have revealed an anti-cancer effect of metformin.
Several studies of metformin treatment have demonstrated the improved clinical
outcomes of lung cancer patients with diabetes; however, the results have been
inconsistent among studies. Our systematic review and meta-analysis aimed to
summarize the up-to-date effects of metformin on diabetic lung cancer patients. A
systematic search was performed for studies published. Then, these studies were
evaluated for inclusion, and relevant data was extracted. The summary risk
estimates for the associations of metformin treatment with overall survival (OS)
and progression-free survival (PFS) were analyzed using random/fixed-effects
models. Analyses stratified by histological type were also conducted. Based on
the 10 studies included in our analysis, metformin treatment was found to
significantly improve survival, corresponding to reductions of 23% and 47% in OS
[hazard ratio (HR)=0.77, 95% confidence interval (95%CI)=0.66-0.9, p=0.001] and
PFS (HR=0.53, 95%CI=0.41-0.68, p<0.001), respectively. In addition, significant
improvements in the OS for non-small cell lung cancer (NSCLC) (HR=0.77,
95%CI=0.71-0.84, p=0.002) and small cell lung cancer (SCLC) (HR=0.52,
95%CI=0.29-0.91, p=0.022) were observed in association with metformin treatment
in analysis stratified by histological type. This stratified analysis also
revealed a significant improvement in PFS for both NSCLC (HR=0.53,
95%CI=0.39-0.71, p<0.001) and SCLC (HR=0.54, 95%CI=0.34-0.84, p=0.007). We found
that metformin treatment significantly improved the OS and PFS of diabetic lung
cancer patients, and our findings suggest that metformin might be an effective
treatment option for diabetic patients with lung cancer.