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Record W1993607274 · doi:10.1002/sim.1297

The European regulatory experience

2002· article· en· W1993607274 on OpenAlexaff
John A. Lewis

Bibliographic record

VenueStatistics in Medicine · 2002
Typearticle
Languageen
FieldMathematics
TopicStatistical Methods in Clinical Trials
Canadian institutionsHatch (Canada)
Fundersnot available
KeywordsClinical trialRegulatory scienceMargin (machine learning)Risk analysis (engineering)Work (physics)MedicineComputer scienceManagement scienceEconomics

Abstract

fetched live from OpenAlex

This paper discusses four methodological topics that have been a regular source of difficulty and debate in European regulatory work. (i) The increasing use of non-inferiority trials in the development of medicinal products has highlighted several problems. These relate first to the choice of the non-inferiority margin and secondly to the circumstances under which a non-inferiority design is or is not appropriate. (ii) The use of meta-analysis in regulatory applications is still controversial and acceptable uses need to be defined. (iii) Analysis of responders provides a useful insight into the size of treatment benefits but can be misleading, especially when it is impossible to be certain whether or not an individual patient has truly responded to treatment. (iv) The extent of the monitoring of clinical trial procedures and data still distinguishes industry-sponsored trials from other trials: it is not clear that it should. These questions are all equally important for those involved in clinical trial work outside the arena of pharmaceutical development.

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.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.039
metaresearch head score (Gemma)0.034
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Commentary · Consensus signal: none
Teacher disagreement score0.039
Threshold uncertainty score0.205

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0390.034
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0020.004
Science and technology studies0.0030.004
Scholarly communication0.0110.006
Open science0.0020.004
Research integrity0.0100.007
Insufficient payload (model declined to judge)0.0210.005

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 head0.530
GPT teacher head0.563
Teacher spread0.034 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designNot applicable
Domainnot available
GenreCommentary

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations19
Published2002
Admission routes1
Has abstractyes

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