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Record W2347205685 · doi:10.1136/emermed-2015-205372.9

INITIAL RESULTS OF THE RE-VERSE AD TRIAL: IDARUCIZUMAB REVERSES THE ANTICOAGULANT EFFECTS OF DABIGATRAN IN PATIENTS IN AN EMERGENCY SETTING OF MAJOR BLEEDING, URGENT SURGERY OR INTERVENTIONS

2015· article· en· W2347205685 on OpenAlexaff
Charles V. Pollack, John W. Eikelboom, Jeffrey I. Weitz, Paul Reilly, Stephan Glund, Robert Dubiel, J. Kreuzer, Joachim Stangier, B Wang, James Gagg, Peter Verhamme, Richard A. Bernstein, Menno V. Huisman, Elaine M. Hylek, Pieter W. Kamphuisen, Jerrold H. Levy, Frank W. Selke, Thorsten Steiner, CW Kam

Bibliographic record

VenueEmergency Medicine Journal · 2015
Typearticle
Languageen
FieldMedicine
TopicAtrial Fibrillation Management and Outcomes
Canadian institutionsMcMaster University
Fundersnot available
KeywordsIdarucizumabDabigatranMedicineAnticoagulantDirect thrombin inhibitorAnesthesiaEmergency surgeryThrombin timeAtrial fibrillationWarfarinSurgeryInternal medicinePartial thromboplastin timeCoagulation

Abstract

fetched live from OpenAlex

Objectives & Background Dabigatran, an oral thrombin inhibitor, is widely used for stroke prevention in atrial fibrillation. Idarucizumab, a monoclonal antibody fragment directed against dabigatran, demonstrated immediate, complete and sustained reversal of the anticoagulant effect of dabigatran, without procoagulant activity, in animal models and human volunteers. Aims To examine the efficacy and safety of idarucizumab to rapidly reverse the anticoagulation effects of dabigatran in critical clinical situations. Methods RE-VERSE AD is an ongoing multinational, open-label, single cohort study with a target size of up to 300 patients. It is designed to study the reversal of dabigatran's anticoagulant effect by 5 g idarucizumab given as two 2.5 g IV bolus infusions, in patients who experience life-threatening or uncontrollable bleeding (Group A) or who require emergency surgery or invasive procedure (Group B). The primary endpoint is the maximum reversal of the anticoagulant effect of dabigatran, based on central laboratory determination of the dilute thrombin time or ecarin clot time up to 4 hours after idarucizumab administration. Drug levels and other measures of dabigatran activity are also determined. Clinical outcomes, including cessation of bleeding, thrombotic events, and other safety measures, are assessed. Results In the first 90 patients, idarucizumab normalized clotting tests in at least 90% of patients, an effect evident at the first measurement. There was one thrombotic event within 72 hours of idarucizumab administration in a patient whose anticoagulant therapy had not been restarted. Conclusion Idarucizumab is a promising specific reversal agent that rapidly and safely reverses dabigatran's anticoagulant effects within minutes in emergency situations that reflect real world clinical practice.

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)0.004
metaresearch head score (Gemma)0.012
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMetaresearch, Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.042
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0040.012
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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 head0.179
GPT teacher head0.418
Teacher spread0.239 · 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; a candidate call from one teacher head, not a consensus.

Study designObservational
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

Citations7
Published2015
Admission routes1
Has abstractyes

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