Pharmacokinetics of High‐Dose Abetimus Sodium in Normal Subjects With Specific Assessment of Effect on Coagulation
Bibliographic record
Abstract
Abetimus sodium is an oligonucleotide-based investigational drug designed to treat patients with lupus nephritis by specifically reducing anti-double-stranded DNA antibody levels. The safety and pharmacokinetics of abetimus were evaluated in 24 healthy volunteers at intravenous doses of 600 mg, 1200 mg, and 2400 mg. The mean half-life ranged from 0.8 to 1.5 hours. Maximum exposure assessed by maximum observed plasma concentration was dose proportional. Total exposure assessed by area under the plasma concentration-time curve was dose proportional between 1200-mg and 2400-mg doses and greater than proportionate between the 600-mg and 1200-mg doses. Abetimus was well tolerated in all dose groups, with adverse events observed in 33.3% (2/6) of placebo subjects and 16.7% (3/18) subjects receiving abetimus. No clinically significant effects were observed on laboratory values, vital signs, or electrocardiogram, with the exception of a transient, dose-dependent, prolongation in activated partial thromboplastin time. In vitro coagulation studies suggested that the effect on activated partial thromboplastin time was attributable to a nonspecific interaction rather than specific factor depletion. Exposure to abetimus at intravenous doses of 600 mg, 1200 mg, and 2400 mg was well tolerated. Total exposure assessed by area under the plasma concentration-time curve was greater than dose proportional across the dose range of 600 mg to 2400 mg.
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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 | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 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".