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Record W1992917631 · doi:10.5414/cp201845

Approvable generic carbamazepine formulations may not be bioequivalent in target patient populations

2013· article· en· W1992917631 on OpenAlexaff
László Tóthfalusi, László Endrényi

Bibliographic record

VenueInternational Journal of Clinical Pharmacology and Therapeutics · 2013
Typearticle
Languageen
FieldPharmacology, Toxicology and Pharmaceutics
TopicPharmacogenetics and Drug Metabolism
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsBioequivalencePharmacokineticsCmaxPharmacologyCarbamazepineMedicinePopulation

Abstract

fetched live from OpenAlex

OBJECTIVES: To demonstrate that with carbamazepine (CBZ), positive results of bioequivalence trials in healthy volunteers cannot be extrapolated to patients because metabolic enzyme induction fundamentally changes the pharmacokinetics of CBZ. METHODS: Bioequivalence trials were simulated assuming normal and induced metabolic clearance. The relevant pharmacokinetic parameters were drawn from published studies. RESULTS: The Cmax ratio depends on the clearance. A generic product which is fully compliant with the regulatory requirements in healthy volunteers could be non-bioequivalent in patients with enhanced elimination. CONCLUSION: A statement of bioequivalence of CBZ formulations, based on a single-dose study performed in healthy subjects, may not hold for a target patient population in the steady state.

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 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 categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.813
Threshold uncertainty score0.999

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0020.000

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 head0.320
GPT teacher head0.535
Teacher spread0.215 · 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 teacher head, not a consensus.

Study designNot applicable
Domainnot available
GenreEmpirical

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

Citations10
Published2013
Admission routes1
Has abstractyes

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