- FDA Allows IND to Study ATI-450 in Hospitalized Patients with COVID-19
- Aclaris Supports Investigator-Initiated Clinical Trial Sponsored by the
University of Kansas Medical Center
- ATI-450 Inhibits Multiple Key Inflammatory Cytokines
“CRS leads to the release of multiple inflammatory cytokines such as IL1β, IL6 and TNFα, which precedes acute respiratory distress syndrome, and is associated with significant morbidity and mortality in patients with COVID-19. ATI-450, a novel oral compound, has demonstrated that it targets the expression of inflammatory cytokines in a Phase 1 clinical trial in healthy volunteers. Therefore, we believe that ATI-450 may be an innovative approach to managing this disease,” said
ATI-450 has been observed to regulate pro-inflammatory cytokines associated with CRS. Pharmacodynamic analysis from the first-in-human study using an ex vivo lipopolysaccharide (LPS) stimulation model demonstrated dose-dependent reduction of TNFα, IL1β, IL6 and IL8. Further analysis using this LPS model showed marked inhibition of additional cytokines linked to CRS, including GM-CSF, IL2, IFNγ and MIP1α. Furthermore, anti-inflammatory activity for ATI-450 was observed in a rat model of airway neutrophilia induced by inhaled LPS. In addition, anti-viral1,2,3 and anti-fibrotic4,5 activity has been observed following blockade of the MK2 pathway in preclinical studies.
“Many of the investigational drugs that are being evaluated to treat CRS target a single cytokine,” said Dr.
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Coronavirus disease 2019 (COVID-19) is a new pandemic disease caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Some patients require hospitalization, mostly due to pneumonia, and can progress quickly to severe acute lung injury and acute respiratory distress syndrome (ARDS), which is associated with high mortality.6,7 A viral-induced cytokine storm or “hyperimmune response” is hypothesized to be a major pathogenic mechanism of ARDS.8,9,10
ATI-450 is an investigational oral mitogen-activated protein kinase-activated protein kinase 2 (MK2) inhibitor in Phase 2 clinical development. This mechanism leads to the inhibition of multiple cytokines, chemokines, matrix metalloproteases and other inflammatory signals. Key inflammatory cytokines driven by this mechanism include tumor necrosis factor α (TNFα) and interleukin-1α, -1β, -6 and -8 (IL1α, IL1β, IL6 and IL8). Aclaris is developing ATI-450 as a potential treatment for rheumatoid arthritis and other immuno-inflammatory diseases.
Cautionary Note Regarding Forward-Looking Statements
Any statements contained in this press release that do not describe historical facts may constitute forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. These statements may be identified by words such as “believe,” “expect,” “intend,” “may,” “plan,” “potential,” “will,” and similar expressions, and are based on Aclaris’ current beliefs and expectations. These forward-looking statements include expectations regarding ATI-450 as a potential treatment for patients with COVID-19 and the clinical development of ATI-450. These statements involve risks and uncertainties that could cause actual results to differ materially from those reflected in such statements. Risks and uncertainties that may cause actual results to differ materially include uncertainties inherent in the conduct of clinical trials, Aclaris’ reliance on third parties over which it may not always have full control, Aclaris’ ability to enter into strategic partnerships on commercially reasonable terms, the uncertainty regarding the COVID-19 pandemic and other risks and uncertainties that are described in the Risk Factors section of Aclaris’ Annual Report on Form 10-K for the year ended
- McCaskill JL, Ressel S, Alber A, et al. Broad-Spectrum Inhibition of Respiratory Virus Infection by MicroRNA Mimics Targeting p38 MAPK Signaling. Mol Therapy: Nuc Acids. 2017;7:256-266.
- Luig C, Köther K, Dudek SE, et al. MAP kinase-activated protein kinases 2 and 3 are required for influenza A virus propagation and act via inhibition of PKR. FASEB J. 2010;24:4068-4077.
- Jimenez-Guardeño JM, Nieto-Torres JL, DeDiego ML, et al. The PDZ-Binding Motif of Severe Acute Respiratory Syndrome Coronavirus Envelope Protein Is a Determinant of Viral Pathogenesis. PLoS Pathog. 2014;10(8):1-20.
- Liang J, Liu N, Liu X, et al. Mitogen-activated Protein Kinase–activated Protein Kinase 2 Inhibition Attenuates Fibroblast Invasion and Severe Lung Fibrosis. Am J Respir Cell Mol Biol. 2019;60(1):41–48.
- Vittal R, Fisher A, Gu H, et al. Peptide-Mediated Inhibition of Mitogen-Activated Protein Kinase–Activated Protein Kinase–2 Ameliorates Bleomycin-Induced Pulmonary Fibrosis. Am J Respir Cell Mol Biol. 2013;49(1):47–57.
- Huang C, Wang Y, Li X, et al. Clinical features of patients infected with 2019 novel coronavirus in
Wuhan, China. Lancet. 2020;395:497-506.
- Zhou F, Yu T, Du R, et al. Clinical course and risk factors for mortality of adult inpatients with COVID-19 in
Wuhan, China: a retrospective cohort study. Lancet. 2020;395:1054-1062.
- Mehta P, McAuley DF, Brown M, et al. COVID-19: consider cytokine storm syndromes and immunosuppression.
Lancet. 2020;395:1033-1034. Moore, JB, June CH. Cytokine release syndrome in severe COVID-19. Science. 2020;368(6490):473-474.
- Zhang C, Wu Z, Li JW, et al. Cytokine release syndrome in severe COVID-19: interleukin-6 receptor antagonist tocilizumab may be the key to reduce mortality. Int. J. Antimicrob. Agents. 2020;55(5):1-6.
Source: Aclaris Therapeutics, Inc.