Trial reportAngiogenesis2025
Hydroxychloroquine does not affect endotheliopathy or coagulopathy biomarkers in COVID-19: longitudinal results from the DisCoVeRy randomized trial.
Trial report in Angiogenesis, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04315948 (Multi-centre, Adaptive, Randomized Trial of the Safety and Efficacy of Treatments of COVID-19 in Hospitalized Adults), which is not on this map. Cited by 1 paper.
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.
Multi-centre, Adaptive, Randomized Trial of the Safety and Efficacy of Treatments of COVID-19 in Hospitalized Adults
Who cites it
1 citing paper in PubMed.
- Extracellular vesicles as key biomarkers in COVID-19: insights into disease severity and mortality through CD86 and other immune markers.Frontiers in immunology · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
15 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundHydroxychloroquine (HCQ), long used for its immunomodulatory and vasculoprotective properties in autoimmune diseases such as antiphospholipid syndrome, was among the first drugs evaluated for COVID-19. Given the prominent endothelial dysfunction and coagulopathy in severe COVID-19, we investigated whether HCQ could modulate circulating biomarkers of vascular injury.
methodsA longitudinal analysis comparing standard of care (SoC; n = 148) with HCQ plus SoC (n = 145) was conducted within the phase 3, multicenter, open-label, randomized, adaptive, controlled trial DisCoVeRy in hospitalized patients with COVID-19 (NCT04315948), which primary outcome was clinical status at day 15, measured by the WHO 7-point ordinal scale. Biomarkers of endothelial activation and coagulopathy-angiopoietin-2, P-selectin, and D-dimer-were measured on days 1, 3, 5, 8, and 11. Linear mixed-effects models assessed the influence of HCQ and baseline severity on biomarker trajectories.
resultsSevere disease at baseline was associated with higher biomarker levels: angiopoietin-2 (p < 10⁻⁵), P-selectin (p < 10⁻⁶), and D-dimer (p < 10⁻⁷). HCQ had no effect on angiopoietin-2 levels over time (0.002 95%CI: [- 0.003;0.007], p = 0.42). P-selectin increased significantly in both non-severe and severe SoC patients, but HCQ had no effect on the slope (0.005 95%CI: [- 0.001;0.012], p = 0.12). Regarding D-dimer, neither disease severity nor HCQ significantly affected the slope (- 0.004 95%CI: [- 0.016;0.009], p = 0.57 and - 0.000 95%CI: [- 0.009;0.009], p = 0.98, respectively).
conclusionsHCQ was not found to modify the longitudinal evolution of angiopoietin-2, P-selectin, or D-dimer in hospitalized patients with COVID-19. These findings confirm the absence of vascular benefit, reinforcing evidence against HCQ's clinical utility in COVID-19 and underscoring the need for alternative endothelial-targeted approaches.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.