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Abstract 5767: Viral Anti-inflammatory Treatment of Unstable Coronary Syndromes: The VT-111 Acute Coronary Syndrome Trial

2009· article· en· W183709488 on OpenAlexaff
Philippe L. L’Allier, Jean‐Claude Grégoire, Grant McFadden, William J. Kostuk, Merril L. Knudtson, Marino Labinaz, Ron Waksman, Carl J. Pepine, Colin Macaulay, Alexandra Lucas

Bibliographic record

VenueCirculation · 2009
Typearticle
Languageen
FieldMedicine
TopicCoronary Interventions and Diagnostics
Canadian institutionsViron Therapeutics (Canada)London Health Sciences CentreUniversité de MontréalUniversity of OttawaFoothills Medical CentreMontreal Heart Institute
Fundersnot available
KeywordsMedicineAcute coronary syndromeCardiologyInternal medicineMyocardial infarction

Abstract

fetched live from OpenAlex

Background: Up-regulation of inflammatory responses contributes to coronary plaque rupture, thrombosis, and vascular occlusion leading to myocardial and cerebral infarction. Some viruses have developed potent proteins that block key steps in both the innate and adaptive immune responses. VT-111 is a viral serine proteinase inhibitor that demonstrates reductions in monocyte migration to sites of vascular damage in a wide range of animal models. Methods: In a double-blind, placebo-controlled trial, the safety of VT-111 plus standard of care was evaluated in patients with acute coronary syndromes treated with stents. Patients received IV VT-111 or placebo once daily for 3 days, starting immediately before intervention. Patients were followed for 3 days in hospital, and at 14, 28 days and 3 and 6 months for safety/efficacy endpoints, including biomarker analysis and MACE (death, MI or revascularization). At 6 months, restenosis was evaluated by intravascular ultrasound. Results: Forty-eight patients were enrolled at 7 sites; 19 patients received 5 μ g/kg VT-111, 17 patients received 15 μ g/kg and 12 patients received placebo. There were no differences between the treated and control groups on key safety endpoints, including coagulation parameters and adverse events. A trend towards a decrease in MACE was observed, with a reduction to 0% in the 15 μ g/kg group from 18% in controls. A significant, dose-dependent reduction in Troponin I levels was observed with VT-111 at 8, 16, 24 and 54 hours post-dose (p<0.05). Similar reductions were observed in CK-MB levels at 8, 16 and 24 hours post-dose (p<0.05). Trends towards a reduction in MCP-1 were also observed. Further analysis suggests that VT-111 may also have early effects on markers such as EN-RAGE (S100A12), IL-6 and CD40L. There were no differences in in-stent plaque area or lumen area between control and treated groups, as assessed by IVUS. Conclusion: This randomized, placebo-controlled trial supports the safety of 3 daily IV injections of VT-111, a first in class viral-derived anti-inflammatory therapeutic agent. A significant reduction in biomarkers of cardiac damage demonstrates the potential of this novel class of protein therapeutics.

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 machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Randomized trial · Consensus signal: Randomized trial
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.004
Threshold uncertainty score0.014

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0010.000
Open science0.0000.000
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0040.000

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 head0.029
GPT teacher head0.294
Teacher spread0.265 · 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 source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designRandomized trial
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

Citations0
Published2009
Admission routes1
Has abstractyes

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