Abstract
The aim of this meta-analysis was to compare the efficiency of whole-brain radiotherapy (WBRT) plus temozolomide (TMZ) with WBRT for the treatment of brain metastases from non-small-cell lung cancer (NSCLC). For dichotomous variables, outcomes were reported as relative risk ratio (RR) and 95% confidence interval (CI) was used to investigate the following outcome measures: overall response rate, headache, gastrointestinal adverse reactions, and hematological adverse reactions. Twelve randomized controlled trials involving 925 participants (480 received WBRT plus TMZ; 445 received WBRT) were included in the meta-analysis. There was a significant difference between the overall response rate (RR = 1.40, 95% CI 1.24–1.57; Z = 5.51; P < 0.00001), gastrointestinal adverse reactions (RR = 1.46, 95% CI 1.05–2.04; Z = 2.27; P = 0.02), and hematological adverse reactions (RR = 1.45, 95% CI 1.04–2.02; Z = 2.21; P = 0.03) of patients treated with WBRT plus TMZ compared with patients treated with WBRT alone. There was no significant difference between headaches (RR = 1.11, 95% CI 0.93–1.02; Z = 1.13; P = 0.26) in patients treated with WBRT plus TMZ compared with patients treated with WBRT alone. In conclusion, the currently available evidence shows that WBRT plus TMZ increases the overall response rate in patients with brain metastases of NSCLC compared with WBRT alone.
The currently available evidence shows that whole-brain radiotherapy (WBRT) plus temozolomide increases the overall response rate in patients with brain metastases of non-small-cell lung cancer compared with WBRT alone.
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