Related Experiment Video
Updated: May 9, 2026

The Clinical Application of Tumor Treating Fields Therapy in Glioblastoma
Published on: April 16, 2019
Etoposide improves survival in high-grade glioma: a meta-analysis
Alexis Leonard1, Johannes E Wolff
1Children's National Medical Center, 111 Michigan Ave NW, Washington DC 20010, USA. aleonard@cnmc.org
Background:
The purpose of this meta-analysis was to evaluate the therapeutic efficacy of topoisomerase inhibitors in the treatment of high-grade gliomas (HGGs).
Materials And Methods:
Using median overall survival (mOS) and survival gain, we compared the efficacy of chemotherapy drugs in a meta-analysis of 624 HGG studies, including 44,850 patients from studies published between 1976 and 2011.
Results:
Patient cohorts treated with etoposide had significant improvement in mOS (15.66 months vs. 13.27 months, p=0.026, 49 vs. 795 cohorts) and significant survival gain advantage (p=0.022) over cohorts treated without etoposide. In contrast, patient cohorts treated with irinotecan had significantly worse mOS (10.20 vs. 13.55 months, p=0.008, 35 vs. 810 cohorts) and a disadvantage compared to cohorts treated without irinotecan in survival gain analysis.
Conclusion:
Results from this analysis suggest that etoposide may improve overall survival for patients with HGG, whereas the use of irinotecan might result in inferior outcomes.
More Related Videos
Related Concept Videos
Cancer Therapies
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
Cancer Survival Analysis
Treatment Resistant Cancers

