Abstract
Background
Glioblastoma is the most common malignant primary brain tumour in adults and driven by various genomic alterations. Next generation sequencing (NGS) provides timely information about the genetic landscape of tumours and might detect targetable mutations. To date, differences exist in the application and NGS assays used as it remains unclear to what extent these variants may affect clinical decision making. In this survey-based study, we investigated the use of NGS in adult patients with glioblastoma in Switzerland.
Methods
All eight primary care centres for Neuro-Oncology in Switzerland participated in this survey. The NGS assays used as well as the criteria for the application of NGS in newly diagnosed glioblastoma were investigated. Decision trees were analysed for consensus and discrepancies using the objective consensus methodology.
Results
Seven out of eight centres perform NGS in patients with newly diagnosed glioblastoma using custom made or commercially available assays. The criteria most relevant to decision making were age, suitability of standard treatment and fitness. NGS is most often used in fitter patients under the age of 60 years who are not suitable for standard therapy, while it is rarely performed in patients in poor general health.
Conclusion
NGS is frequently applied in glioblastomas in adults in Neuro-Oncology centres in Switzerland despite seldom changing the course of treatment to date.
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Data availability
The dataset generated and analysed during the current study is available from the corresponding author on reasonable request.
Code availability
Not applicable.
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Acknowledgements
We thank all the members of the local interdisciplinary CNS tumour board for providing data for this investigation.
Funding
TH and PMP received an unrestricted grant to the institutions from Bayer AG (Switzerland).
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All authors contributed to the study conception, data collection and design. Material preparation and analysis were performed by MCN, AMZ, PMP and TH. The first draft of the manuscript was written by TH and AZ. All authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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MW has received research grants from Apogenix, Merck, Sharp & Dohme, Merck (EMD), Philogen and Quercis, and honoraria for lectures or advisory board participation or consulting from Adastra, Bayer, Bristol Meyer Squibb, Medac, Merck, Sharp & Dohme, Merck (EMD), Nerviano Medical Sciences, Novartis, Orbus and Philogen. HL received travel grants and consultant fees from Bristol-Myers Squibb (BMS) and Merck, Sharp and Dohme (MSD) and received research support from BMS, Novartis, GlycoEra and Palleon Pharmaceuticals. MCN has received a research grant from Novocure, honoraria for consulting or lectures from WISE and MSD. On behalf of all other authors, the corresponding author states that there is no conflict of interest.
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Zeitlberger, A.M., Putora, P.M., Hofer, S. et al. Next generation sequencing in adult patients with glioblastoma in Switzerland: a multi-centre decision analysis. J Neurooncol 158, 359–367 (2022). https://doi.org/10.1007/s11060-022-04022-7
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DOI: https://doi.org/10.1007/s11060-022-04022-7