Compound class:
Synthetic organic
Comment: ACT-1014-6470 is a novel, orally available small molecule anatgonist of the complement factor 5a receptor 1 (C5a1 receptor) [4]. It was designed for anti-inflammatory activity, for application in autoimmune diseases. ACT-1014-6470 selectively targets C5a-mediated receptor signalling, in contrast to the clinically used anti-C5 monoclonals eculizumab and ravulizumab that prevent C5a (anaphylatoxin) and C5b production. The principal effect of both strategies is to block further activation of complement-mediated inflammation. One suggested benefit of the small-molecule approach is that it does not alter C5b-mediated membrane attack complex (MAC) formation, which means that the bactericidal activity of the complement system remains intact.
n.b. Avacopan (CCX-168) was the first C5a1 receptor antagonist to be approved by the FDA (2021). ![]() Ligand Activity Visualisation ChartsThese are box plot that provide a unique visualisation, summarising all the activity data for a ligand taken from ChEMBL and GtoPdb across multiple targets and species. Click on a plot to see the median, interquartile range, low and high data points. A value of zero indicates that no data are available. A separate chart is created for each target, and where possible the algorithm tries to merge ChEMBL and GtoPdb targets by matching them on name and UniProt accession, for each available species. However, please note that inconsistency in naming of targets may lead to data for the same target being reported across multiple charts. ✖ |
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References |
1. Anliker-Ort M, Dingemanse J, Farine H, Groenen P, Kornberger R, van den Anker J, Kaufmann P. (2023)
Multiple-ascending doses of ACT-1014-6470, an oral complement factor 5a receptor 1 (C5a1 receptor) antagonist: Tolerability, pharmacokinetics and target engagement. Br J Clin Pharmacol, 89 (1): 380-389. [PMID:36000981] |
2. Froidevaux S, Hubler F, Murphy M, Rennenberg D, Stamm S. (2019)
2,4,6,7-tetrahydro-pyrazolo[4,3-d]pyrimidin-5-one derivatives and related compounds as c5a receptor modulators for treating vasculitis and inflammatory diseases. Patent number: WO2019137927A1. Assignee: Idorsia Pharmaceuticals Ltd. Priority date: 09/01/2019. Publication date: 18/07/2019. |
3. Hammann-Hänni A, Kaufmann P, Klein G, Schmid K, Dingemanse J. (2023)
Effect of Severe Renal Impairment on Pharmacokinetics, Safety, and Tolerability of ACT-1014-6470, a Novel Oral Complement Factor 5a Receptor 1 Antagonist. Clin Pharmacol Drug Dev, 12 (2): 152-158. [PMID:36285509] |
4. Ort M, Dingemanse J, Hsin CH, Richard M, Huehn E, Sabattini G, van de Wetering J, Kornberger R, van den Anker J, Kaufmann P. (2022)
First-in-human study with ACT-1014-6470, a novel oral complement factor 5a receptor 1 (C5aR1) antagonist, supported by pharmacokinetic predictions from animals to patients. Basic Clin Pharmacol Toxicol, 131 (2): 114-128. [PMID:35596117] |