Safety and Use of Eptacog Beta 225 µg/kg in Patients With Haemophilia A or B With Inhibitors
Bibliographic record
Abstract
INTRODUCTION: Eptacog beta is an activated recombinant human factor VII bypassing agent approved for treating bleeding episodes (BEs) in patients aged ≥12 years with haemophilia A or B with inhibitors. Two initial dose regimens (IDRs) of either 75 or 225 µg/kg, followed by 75 µg/kg, are approved. We examined the safety of eptacog beta 225 µg/kg across completed clinical trials. METHODS: This analysis included data from a Phase 1b trial of single doses of eptacog beta 25, 75 and 225 µg/kg in non-bleeding adults with haemophilia and pooled data from two Phase 3 trials of the 75 and 225 µg/kg IDRs for treating BEs in adolescents and adults (PERSEPT 1) and children (PERSEPT 2). RESULTS: In the Phase 1b trial, 10 patients received a single eptacog beta infusion at each dose level. In the Phase 3 trials, 48 patients received the 75 µg/kg IDR (median 20.5 infusions/patient, range 1-137 infusions) and 50 patients received the 225 µg/kg IDR (median 14.5 infusions/patient, range 1-117 infusions). There was a similar incidence of treatment-emergent adverse events (TEAEs) across all doses (225, 75 and 25 µg/kg) in the Phase 1b trial (0.8 vs. 1.0 vs. 2.1 events per infusion, respectively) and with the 225 versus 75 µg/kg IDR in the Phase 3 studies (0.046 vs. 0.029 events per infusion, respectively). No treatment-related serious TEAEs, thromboembolic events, hypersensitivity reactions, deaths attributed to eptacog beta or neutralising antibodies were detected. CONCLUSIONS: These findings demonstrate favourable safety and tolerability regarding the use of the 225 µg/kg IDR. TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT01708564, NCT02020369, NCT02448680.
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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 | 0.002 | 0.005 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| 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".