Journal
ANTICANCER RESEARCH
Volume 40, Issue 10, Pages 5801-5806Publisher
INT INST ANTICANCER RESEARCH
DOI: 10.21873/anticanres.14597
Keywords
Tumor treating fields; the Stupp protocol; newly diagnosed glioblastoma; survival; selection bias
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Background/Aim: Whether adding tumor treating fields (TTF) to the Stupp protocol increases survival for glioblastoma (GBM) patients in routine clinical care remains unknown. Patients and Methods: We retrospectively identified adult patients with newly diagnosed GBM (n=104) treated with the Stupp protocol or TTF at our Institution. Results: Thirty-six percent (37/104) of patients received TTF in conjunction with the Stupp protocol and these patients had increased 6-month (p=0.006) and 1-year (p=0.170), but not 2-year survival rates compared to the 67-patients who received Stupp alone. The improvement of survival rate at 6-month was further confirmed by a modified Poisson model (p=0.010). However, we did not observe any improvement in overall survival (OS) with a Cox model. Conclusion: While adding TTF to the Stupp protocol appeared to benefit patients with newly diagnosed GBM, this effect was mild and may be largely due to selection bias.
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