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Record W2020124426 · doi:10.1159/000055398

Testing for HER2 Status

2001· review· en· W2020124426 on OpenAlex

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.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.
aboutThe title or abstract carries a Canadian signal from the geographic lexicon.

Bibliographic record

VenueOncology · 2001
Typereview
Languageen
FieldMedicine
TopicHER2/EGFR in Cancer Research
Canadian institutionsHealth Sciences CentreSunnybrook Health Science Centre
FundersAmerican Society of Clinical Oncology
KeywordsConcordanceMedicineOncologyBreast cancerInternal medicineImmunohistochemistryGold standard (test)PathologyCancer

Abstract

fetched live from OpenAlex

Incorporation of a new biological marker such as HER2 into routine clinical practice requires proof that it provides reproducible information independent of, and better than, conventional pathologic criteria, and that it influences treatment decisions. In breast cancer, HER2 amplification/overexpression predicts for a poor clinical outcome and an enhanced survival benefit from the HER2-targeted therapy, Herceptin, and may predict for resistance to some conventional therapies. Thus, HER2 is considered to be a clinically important molecule and testing for HER2 abnormalities is already part of routine patient assessment in many parts of the world. There is currently no gold standard for HER2 testing. The main challenge is to standardize and technically validate HER2 testing methodologies. Immunohistochemistry (IHC) and fluorescence in situ hybridization (FISH) are the most common HER2 tests used, and show a high level of concordance. HER2 testing approaches based on the polymerase chain reaction (PCR) are under extensive investigation and appear promising. A Canadian HER2 testing algorithm designed to increase the validity and reproducibility of HER2 testing has been compiled. HER2-positive cases are defined as those with >10% of tumor cells with moderate/strong, complete membrane staining in the invasive component, by IHC. Confirmatory HER2 testing using either FISH or quantitative PCR is recommended for indeterminate cases. Additional studies are required to calibrate HER2 testing results to clinical outcome.

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)0.001
metaresearch head score (Gemma)0.002
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Review · Consensus signal: Review
Teacher disagreement score0.956
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.002
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0020.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0010.000

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 head0.445
GPT teacher head0.593
Teacher spread0.149 · 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