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2017 ; 28
(5
): 1145-1151
Nephropedia Template TP
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Towards a global cancer knowledge network: dissecting the current international
cancer genomic sequencing landscape
#MMPMID28453708
Vis DJ
; Lewin J
; Liao RG
; Mao M
; Andre F
; Ward RL
; Calvo F
; Teh BT
; Camargo AA
; Knoppers BM
; Sawyers CL
; Wessels LFA
; Lawler M
; Siu LL
; Voest E
Ann Oncol
2017[May]; 28
(5
): 1145-1151
PMID28453708
show ga
BACKGROUND: While next generation sequencing has enhanced our understanding of
the biological basis of malignancy, current knowledge on global practices for
sequencing cancer samples is limited. To address this deficiency, we developed a
survey to provide a snapshot of current sequencing activities globally, identify
barriers to data sharing and use this information to develop sustainable
solutions for the cancer research community. METHODS: A multi-item survey was
conducted assessing demographics, clinical data collection, genomic platforms,
privacy/ethics concerns, funding sources and data sharing barriers for sequencing
initiatives globally. Additionally, respondents were asked as to provide the
primary intent of their initiative (clinical diagnostic, research or
combination). RESULTS: Of 107 initiatives invited to participate, 59 responded
(response rate?=?55%). Whole exome sequencing (P?=?0.03) and whole genome
sequencing (P?=?0.01) were utilized less frequently in clinical diagnostic than
in research initiatives. Procedures to identify cancer-specific variants were
heterogeneous, with bioinformatics pipelines employing different mutation
calling/variant annotation algorithms. Measurement of treatment efficacy varied
amongst initiatives, with time on treatment (57%) and RECIST (53%) being the most
common; however, other parameters were also employed. Whilst 72% of initiatives
indicated data sharing, its scope varied, with a number of restrictions in place
(e.g. transfer of raw data). The largest perceived barriers to data harmonization
were the lack of financial support (P?0.01) and bioinformatics concerns (e.g.
lack of interoperability) (P?=?0.02). Capturing clinical data was more likely to
be perceived as a barrier to data sharing by larger initiatives than by smaller
initiatives (P?=?0.01). CONCLUSIONS: These results identify the main barriers, as
perceived by the cancer sequencing community, to effective sharing of cancer
genomic and clinical data. They highlight the need for greater harmonization of
technical, ethical and data capture processes in cancer sample sequencing
worldwide, in order to support effective and responsible data sharing for the
benefit of patients.