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Development and Validation of the ELISA Method for Anti-trastuzumab Antibodies Determination in Human Serum

2022· article· en· W4313415459 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.

Bibliographic record

VenueDrug development & registration · 2022
Typearticle
Languageen
FieldMedicine
TopicMonoclonal and Polyclonal Antibodies Research
Canadian institutionsCanadian Public Health Association
Fundersnot available
KeywordsTrastuzumabAntibodyMedicineMonoclonal antibodyImmunogenicityPharmacologyInternal medicineImmunologyCancerBreast cancer

Abstract

fetched live from OpenAlex

Introduction. One of the widely used specific anti-HER 2 (human epidermal growth factor receptor 2) MAb drugs is trastuzumab. Trastuzumab is highly effective for malignant HER 2 hyperexpression reduction, which results in HER 2 oncogenicity decrease. As any other biotherapeutics trastuzumab can cause immunological adverse reactions, e.g. immunogenicity or anti-drug antibodies (ADAs) production. Aim. The aim of this study was to develop and validate the analytical method for anti-trastuzumab antibodies determination in human blood serum. Materials and methods. The semi-quantitative anti-trastuzumab antibody determination was carried out by the ELISA method combined with ACE technique, using spectrophotometric detection in the visible range of the spectrum. Results and discussion. The developed method was validated for cut point, selectivity, sensitivity, "hook" effect, drug tolerance, precision and stability (short-term and long-term). To decrease the background noise from non-specific binding of sera components, the minimum required dilution value was determined at 10 % serum. The calculated values for screening cut point (normalization factor) and confirmatory cut point were 0.004 and 34.59 %, respectively. The sensitivity of the developed method was estimated at 99.5 ng/mL of anti-trastuzumab antibodies. Conclusion. The obtained results allow us to use the developed ACE ELISA method for the determination of anti-trastuzumab antibodies in human serum during trastuzumab safety clinical trials.

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)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.264
Threshold uncertainty score0.418

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
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 head0.037
GPT teacher head0.346
Teacher spread0.309 · 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