Perioperative and peripartum prevention of venous thromboembolism in patients with hereditary antithrombin deficiency using recombinant antithrombin therapy
Why this work is in the frame
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Bibliographic record
Abstract
Recombinant human antithrombin (rhAT; ATryn), isolated from the milk of transgenic goats, provides an alternative to human plasma-derived antithrombin (AT) concentrate for perioperative and peripartum prophylaxis of venous thromboembolism (VTE) in patients with hereditary AT deficiency. Optimized rhAT dosing algorithms and improved plasma AT monitoring protocol were used in an open-label, single-arm, multinational, pivotal safety and efficacy study that was conducted in patients with hereditary AT deficiency in perioperative and peripartum settings. Loading and maintenance doses were calculated on the basis of pretreatment AT activity levels. Specific dosing regimens were used for pregnant and surgical patients; rhAT was to be given for at least 3 days and for 14 days or less. The primary efficacy end point was the incidence of any thromboembolic event during rhAT therapy or within 7 days of rhAT discontinuation. Safety and AT activity levels were secondary end points. Six surgical and 12 pregnant patients were treated for a median of 3.2 days (range 0.9-14 days). With the optimized dosing regimens, a median of 1 dose adjustment (range 0-6 dose adjustments) was needed to maintain AT activity levels within 80-120% of normal. No confirmed VTEs occurred during treatment or in the subsequent 7 days. Overall, rhAT was well tolerated, but some bleeding complications occurred after rhAT discontinuation and anticoagulation reinstitution. No antibodies to rhAT or goat milk proteins were detected. Perioperative and peripartum prophylactic rhAT therapy in patients with hereditary AT deficiency is well tolerated and effective in preventing VTE.
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Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 it