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Record W2041832372 · doi:10.1177/0091270010397730

Estimation of Onset of Analgesia From Simulated Data

2011· letter· en· W2041832372 on OpenAlexaff
Fakhreddin Jamali

Bibliographic record

VenueThe Journal of Clinical Pharmacology · 2011
Typeletter
Languageen
FieldPharmacology, Toxicology and Pharmaceutics
TopicDrug-Induced Hepatotoxicity and Protection
Canadian institutionsUniversity of Alberta
Fundersnot available
KeywordsMedicinePharmacokineticsAcetaminophenAnalgesicClinical trialCovariateClinical pharmacologyPain reliefAnesthesiaPharmacologyInternal medicineStatistics

Abstract

fetched live from OpenAlex

I read with interest the article by Green et al1 in which simulated clinical trial data were used to quantify pain relief following novel formulations of acetaminophen. The pharmacokinetic parameters used to simulate paracetamol concentrations were from clinical trials conducted in healthy subjects. The authors used a pain relief model and associated parameters from published literature2 and concluded that “the formulation technology under investigation might provide a clinically significant reduction in the time to onset of pain relief from paracetamol.” This prompted me to write this letter and raise a few points that the authors may be able to address: It has been reported that pharmacokinetics, hence, the onset of analgesia of oral medications, are significantly influenced by pain2–5 due, likely, to gastric dysfunctions experienced under the condition.5 Green et al1 used pharmacokinetic parameters reported for healthy volunteers. The authors should have incorporated a delayed absorption covariate in their analysis. This is particularly important in light of their claim of a “clinical advantage” for the “novel technology.” To link pain relief with the pharmacokinetic parameters that were collected from healthy adult subjects, the authors used analgesic parameters reported for postoperative children.6 This implies that the authors assumed that analgesia experienced by a postoperative child can be explained by the plasma concentrations observed in healthy adults. Obviously, the authors ignored the influence of age and disease. Although simulations have a place in predicting therapeutic outcomes, attention must be paid to relevant covariates involved. In addition, data from healthy subjects may not necessarily reflect those expected from real patients.

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)0.009
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Research integrity, Insufficient payload (model declined to judge)
Consensus categoriesResearch integrity
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: Not applicable
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.096
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0090.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0020.000
Bibliometrics0.0000.000
Science and technology studies0.0000.001
Scholarly communication0.0000.000
Open science0.0030.000
Research integrity0.0030.011
Insufficient payload (model declined to judge)0.0030.000

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 head0.486
GPT teacher head0.556
Teacher spread0.070 · 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; both teacher heads agree on what is shown here.

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

Citations1
Published2011
Admission routes1
Has abstractyes

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