Clazosentan disodium  (Synonyms: Ro 61-1790 disodium; VML 588 disodium; AXV-034343 disodium)

Clazosentan disodium (Ro 61-1790) is a selective endothelin A (ET_A) receptor antagonist. Clazosentan disodium inhibits ET-1-mediated vasoconstriction. Clazosentan disodium prevents cerebral vasospasm, vasospasm-related cerebral infarction^[1][5].

623.55

C₂₅H₂₃N₉Na₂O₆S

503271-02-1

O=S(C1=NC=C(C)C=C1)(NC2=NC(C3=CC(C4=NNN=N4)=NC=C3)=NC(OCCO)=C2OC5=CC=CC=C5OC)=O.[Na].[Na]

Room temperature in continental US; may vary elsewhere.

Please store the product under the recommended conditions in the Certificate of Analysis.

• [1]. Juif PE, et al. Clinical Pharmacology of Clazosentan, a Selective Endothelin A Receptor Antagonist for the Prevention and Treatment of aSAH-Related Cerebral Vasospasm. Front Pharmacol. 2021 Feb 4;11:628956.  [Content Brief]

  [2]. Povlsen GK, et al. MEK1/2 inhibitor U0126 but not endothelin receptor antagonist clazosentan reduces upregulation of cerebrovascular contractile receptors and delayed cerebral ischemia, and improves outcome after subarachnoid hemorrhage in rats. J Cereb Blood Flow Metab. 2015 Feb;35(2):329-37.  [Content Brief]

  [3]. Vatter H, et al. Cerebrovascular characterization of clazosentan, the first nonpeptide endothelin receptor antagonist clinically effective for the treatment of cerebral vasospasm. Part I: inhibitory effect on endothelin(A) receptor-mediated contraction. J Neurosurg. 2005 Jun;102(6):1101-7.  [Content Brief]

  [4]. Verri WA Jr, Guerrero AT, Fukada SY, Valerio DA, Cunha TM, Xu D, Ferreira SH, Liew FY, Cunha FQ. IL-33 mediates antigen-induced cutaneous and articular hypernociception in mice. Proc Natl Acad Sci U S A. 2008 Feb 19;105(7):2723-8.  [Content Brief]

  [5]. Juif PE, et al. Influence of Rifampin-Mediated Organic Anion-Transporting Polypeptide 1B1/1B3 Inhibition on the Pharmacokinetics of Clazosentan. Clin Transl Sci. 2019 Sep;12(5):440-444.  [Content Brief]