Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Randomized Controlled Trial
. 2023 Apr;89(4):1495-1501.
doi: 10.1111/bcp.15618. Epub 2022 Dec 14.

The effect of TRV027 on coagulation in COVID-19: A pilot randomized, placebo-controlled trial

Affiliations
Randomized Controlled Trial

The effect of TRV027 on coagulation in COVID-19: A pilot randomized, placebo-controlled trial

Alexander J Robbins et al. Br J Clin Pharmacol. 2023 Apr.

Abstract

COVID-19 causes significant thrombosis and coagulopathy, with elevated D-dimer a predictor of adverse outcome. The precise mechanism of this coagulopathy remains unclear; one hypothesis is that loss of angiotensin-converting enzyme 2 activity during viral endocytosis leads to pro-inflammatory angiotensin-II accumulation, loss of angiotensin-1-7 and subsequent vascular endothelial activation. We undertook a double-blind randomized, placebo-controlled experimental medicine study to assess the effect of TRV027, a synthetic angiotensin-1-7 analogue on D-dimer in 30 patients admitted to hospital with COVID-19. The study showed a similar rate of adverse events in TRV027 and control groups. There was a numerical decrease in D-dimer in the TRV027 group and increase in D-dimer in the placebo group; however, this did not reach statistical significance (P = .15). A Bayesian analysis demonstrated that there was a 92% probability that this change represented a true drug effect.

Keywords: clinical trials; coagulation; randomized controlled trial.

PubMed Disclaimer

Conflict of interest statement

K.P. and D.O. hold advisory positions on the Accelerating COVID‐19 therapeutic interventions and vaccines (ACTIV)‐4D) host tissue protocol development board, National Institute for Health, USA and on the Randomized, Embedded, Multifactorial Adaptive Platform trial for Community‐Acquired Pneumonia (REMAP‐CAP) ACE2 renin angiotensin system (RAS) domain protocol development board. C.M. and M.J.F. are employees of and hold stock in Trevena. All other authors declare no conflicts of interest.

References

    1. Ackermann M, Verleden SE, Kuehnel M, et al. Pulmonary vascular endothelialitis, thrombosis, and angiogenesis in Covid‐19. N Engl J Med. 2020;383(2):120‐128. doi:10.1056/nejmoa2015432 - DOI - PMC - PubMed
    1. Ward A, Sarraju A, Lee D, et al. COVID‐19 is associated with higher risk of venous thrombosis, but not arterial thrombosis, compared with influenza: insights from a large US cohort. PLoS ONE. 2022;17(1):e0261786. doi:10.1371/journal.pone.0261786 - DOI - PMC - PubMed
    1. Piroth L, Cottenet J, Mariet AS, et al. Comparison of the characteristics, morbidity, and mortality of COVID‐19 and seasonal influenza: a nationwide, population‐based retrospective cohort study. Lancet Respir Med. 2021;9(3):251‐259. doi:10.1016/S2213-2600(20)30527-0 - DOI - PMC - PubMed
    1. Yu HH, Qin C, Chen M, Wang W, Tian DS. D‐dimer level is associated with the severity of COVID‐19. Thromb Res. 2020;195:219‐225. doi:10.1016/j.thromres.2020.07.047 - DOI - PMC - PubMed
    1. Glowacka I, Bertram S, Herzog P, et al. Differential downregulation of ACE2 by the spike proteins of severe acute respiratory syndrome coronavirus and human coronavirus NL63. J Virol. 2010;84(2):1198‐1205. doi:10.1128/JVI.01248-09 - DOI - PMC - PubMed

Publication types

Substances