Pharmacokinetic studies of coagulation factors: relevance of plasma and extracellular volume and body weight
Bibliographic record
Abstract
Summary. The clinical utility of pharmacokinetic (PK) studies of infused clotting factor concentrates in subjects with inherited coagulation disorders (e.g. haemophilia) remains unproven. In this regard, differences in drug distribution and elimination between very young children and older subjects is likely to be of importance, and there is preliminary information to suggest that the elimination half‐life of infused factor VIII (FVIII) is shorter in very young boys with haemophilia A as compared to older subjects. The cause for this difference is likely multifactorial and may relate, in part, to the relatively larger liver/whole body weight in very young children as compared to older children and adults. Since plasma volume correlates better with lean body mass than with observed weight in overweight/obese subjects, we suggest that the current practice of using observed weight for dosing of FVIII/IX concentrates be discontinued in subjects who are overweight/obese, and that dosing in such subjects be calculated using ideal weight for height.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.003 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".