Trial reportJournal of thrombosis and thrombolysis2012
Atopaxar and its effects on markers of platelet activation and inflammation: results from the LANCELOT CAD program.
Trial report in Journal of thrombosis and thrombolysis, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
4 citing papers in PubMed, 16 citations in OpenAlex.
- Platelet in thrombo-inflammation: Unraveling new therapeutic targets.Frontiers in immunology · 2022Review
- Increased Pro-Thrombotic Platelet Activity Associated with Thrombin/PAR1-Dependent Pathway Disorder in Patients with Secondary Progressive Multiple Sclerosis.International journal of molecular sciences · 2020Article
- Protease-Activated Receptor 1 as Therapeutic Target in Breast, Lung, and Ovarian Cancer: Pepducin Approach.International journal of molecular sciences · 2018Review
- Platelets and their chemokines in atherosclerosis-clinical applications.Frontiers in physiology · 2014Review
Corrections and comments
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Authors and funding
13 authors at 10 institutions in 7 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Atopaxar is a reversible protease activated receptor (PAR)-1 thrombin receptor antagonist that interferes with platelet signaling. The effects of PAR-1 antagonists on biomarkers remain unknown. The primary objective was to assess the effects of atopaxar on biomarkers of inflammation and platelet activation. The LANCELOT-CAD trial randomized 720 subjects to atopaxar (50, 100, or 200 mg daily) or matching placebo for 24 weeks. Biomarkers were assessed at serial time points. A linear mixed model to account for repeated measures was used to evaluate the change in biomarker concentration from randomization across time to week 24. Least square means were determined from the linear mixed models. The concentration of sCD40L decreased on average over time by -553 (95 % CI -677, -429) ng/L in the combined atopaxar group versus -30.3 (-249 to 189) ng/L fall in the placebo arm (P < 0.001) and a dose-dependent trend was seen across treatment groups (P < 0.001 for trend). In contrast, Lp-PLA(2) mass rose on average over time by 12.6 (95 % CI 10.0, 15.3) ng/ml in the combined atopaxar group as compared with 2.6 (95 % CI -2.1, 7.3) ng/ml in the placebo arm (P < 0.001). Similarly, the concentration of IL-18 rose by 17.5 (95 % CI 12.4, 22.6) pg/ml in the atopaxar group versus a -1.2 (95 % CI -10.2, 7.8) pg/ml fall in the placebo group (P < 0.001). The effects of atopaxar on Lp-PLA(2) and IL-18 appeared to be dose-dependent (P < 0.001 for trend) and were observed in J-LANCELOT. Atopaxar did not have a significant effect on other inflammatory markers. In conclusion, atopaxar appeared to decrease sCD40L, but did not demonstrate an anti-inflammatory effect in patients with stable CAD. Although atopaxar increased the concentration of Lp-PLA(2) and IL-18, the clinical relevance of these findings remains unknown and warrants further investigation and validation.
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