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The efficacy and safety of pemetrexed-based doublet therapy compared to pemetrexed alone for the second-line treatment of advanced non-small-cell lung cancer: an updated meta-analysis

Overview of attention for article published in Drug Design, Development and Therapy, July 2015
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Title
The efficacy and safety of pemetrexed-based doublet therapy compared to pemetrexed alone for the second-line treatment of advanced non-small-cell lung cancer: an updated meta-analysis
Published in
Drug Design, Development and Therapy, July 2015
DOI 10.2147/dddt.s88218
Pubmed ID
Authors

Anyuan Zhong, Xiaolu Xiong, Minhua Shi, Huajun Xu

Abstract

Pemetrexed is currently recommended as the second-line treatment for patients with advanced non-small-cell lung cancer (NSCLC). However, it is unclear whether pemetrexed-based doublet therapy improves treatment efficacy and safety. Thus, this meta-analysis was performed to resolve this controversial question. Electronic databases, including PubMed, Embase, and the Cochrane Central Register of Controlled Trials were searched for relevant articles before April 2015. Hazard ratios (HRs) were used to estimate overall survival (OS) and progression-free survival (PFS), and odds ratios (ORs) were used to analyze the overall response rate (ORR) and grade ≥3 toxicities. Subgroup analysis, sensitivity analysis, and publication bias were also evaluated. A total of 2,519 patients from ten randomized controlled trials were included. Compared to pemetrexed alone, PFS and ORR significantly improved in the pemetrexed-based doublet group (HR, 0.86; 95% CI [confidence interval], 0.75-0.99; P=0.038; and OR, 1.98; 95% CI, 1.25-3.12; P=0.003, respectively). However, no statistically significant differences in OS were observed between groups (HR, 0.92; 95% CI, 0.83-1.02; P=0.132). In addition, subgroup analyses indicated that improved OS was only observed in nonsquamous NSCLC patients who received the combination of pemetrexed and erlotinib. An increasing incidence of grade ≥3 neutropenia and thrombocytopenia was observed in the pemetrexed-based doublet group. Among patients with advanced NSCLC, pemetrexed-based doublet treatment tended to be associated with improved PFS, ORR, and increased toxicity, but not OS.

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Geographical breakdown

Country Count As %
Unknown 24 100%

Demographic breakdown

Readers by professional status Count As %
Other 6 25%
Researcher 5 21%
Student > Bachelor 3 13%
Student > Ph. D. Student 2 8%
Student > Master 2 8%
Other 2 8%
Unknown 4 17%
Readers by discipline Count As %
Medicine and Dentistry 9 38%
Economics, Econometrics and Finance 3 13%
Business, Management and Accounting 1 4%
Nursing and Health Professions 1 4%
Agricultural and Biological Sciences 1 4%
Other 2 8%
Unknown 7 29%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 19 April 2016.
All research outputs
#20,657,128
of 25,374,917 outputs
Outputs from Drug Design, Development and Therapy
#1,437
of 2,268 outputs
Outputs of similar age
#202,785
of 277,613 outputs
Outputs of similar age from Drug Design, Development and Therapy
#108
of 157 outputs
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