Journal
ONCOLOGIST
Volume 23, Issue 3, Pages 337-345Publisher
OXFORD UNIV PRESS
DOI: 10.1634/theoncologist.2017-0196
Keywords
Glioma; Glioblastoma; Randomized controlled trial; CONSORT statement; Quality report
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Background. The randomized controlled trial (RCT) is the gold standard to objectively assess the effect of treatments. To help improve the quality of RCTs, experts established a list of recommendations, the CONsolidated Standards of Reporting Trials (CONSORT) Statement. In this study, we evaluated the implementation of the CONSORT Statement in the field of highgrade gliomas in adult patients and looked for criteria associated with higher quality of RCTs. Materials and Methods. We searched all high-grade gliomas RCTs published in PubMed between January 1990 and December 2016. The quality of these RCTs was assessed by completing amodified CONSORT Score (CS). Results. Ninety-six published RCTs were identified. The median CS was 19.5 on a scale of 0-33. Items were not equally reported. Items regarding the method of randomization or the blinding were reported in less than 25% of RCTs. However, the CS has constantly improved over the years. Before the implementation of the CONSORT Statement in 1996, the median CS was 13, whereas it was 17 for the period 1996-2004 and 22 after 2005. A higher CS was observed when RCTs were published in a journal with an impact factor above 10 (p<.001)or after 2010 (p=.001), when the primary outcome was clearly defined (p<.001) and for RCTs that enrolled more than 200 patients (p= .004). Conclusion. Although there has been a steady improvement in the CS over the years in the field of high- grade gliomas, a major effort must be made in the reporting methods for randomization and blinding.
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