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Record W4224317855 · doi:10.51731/cjht.2022.315

Emerging Multi-Cancer Early Detection Technologies

2022· article· en· W4224317855 on OpenAlex
Sinwan Basharat, Jennifer Horton

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

aboutThe title or abstract carries a Canadian signal from the geographic lexicon.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueCanadian Journal of Health Technologies · 2022
Typearticle
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicCancer Genomics and Diagnostics
Canadian institutionsnot available
Fundersnot available
KeywordsHealth careEmerging technologiesTest (biology)Risk analysis (engineering)CancerCancer screeningClinical decision support systemComputer scienceMedicineData scienceDecision support systemArtificial intelligencePolitical science

Abstract

fetched live from OpenAlex

Horizon Scan reports provide brief summaries of information regarding new and emerging health technologies; these technologies are identified through the CADTH Horizon Scanning Service as topics of potential interest to health care decision-makers in Canada. This report is not an endorsement or assessment of any test or technology. This Horizon Scan summarizes the available information regarding the emerging technology of liquid biopsy–based, multi-cancer early detection tests for cancer screening. This Horizon Scan focuses specifically on the Galleri (GRAIL Inc.) and CancerSEEK (Exact Sciences) tests, which are further along in the development cycle and are being assessed in different international clinical studies. Multi-cancer early detection technologies aim to provide a new approach to complement traditional cancer screening programs. These tests examine genetic signals within blood samples with next-generation sequencing and computational algorithms to assess the presence and type of different cancers. Research to date has focused on describing results from training and validation studies that have provided initial estimates of test performance and modelling studies estimating the potential impact on cancer incidence. This Horizon Scan also highlights some issues for health care decision-makers to consider about the technology relating to real-world test performance, the potential benefits and harms of screening with multi-cancer early detection tests, and the disruptiveness to health systems they could pose. Ongoing review of clinical trials and the emerging evidence base can help inform health systems in Canada about their potential role within cancer-control initiatives.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Other design · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.971
Threshold uncertainty score0.504

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0010.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.017
GPT teacher head0.271
Teacher spread0.255 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it