Funding The preparation of this review was not supported by
any external funding.
Authorship and Conflict of
interest During the peer review process the manufacturer of
the agent under review was offered an opportunity to comment on the article.
Changes resulting from any comments received were made by the authors on the
basis of scientific completeness and accuracy. Arnold Lee is a salaried employee of Adis International Ltd/Springer
Nature, and declares no relevant conflicts of interest. All authors contributed
to the review and are responsible for the article content.
Ethics
approval, Consent to participate, Consent to publish, Availability of data and
material, Code availability Not applicable.
Additional information about this Adis Drug Review can be found here
Abstract
Clazosentan
(PIVLAZ™)
is a small molecule, endothelin (ET) A receptor-selective antagonist being
developed by Idorsia Pharmaceuticals. ETA receptor inhibition by
clazosentan decreases ET-related cerebral vasospasm, which may occur after an aneurysmal subarachnoid haemorrhage. Clazosentan has been approved in Japan for use in the prevention of cerebral vasospasm,
vasospasm-related cerebral infarction and cerebral ischaemic symptoms after
aneurysmal subarachnoid haemorrhage, following the results from the JapicCTI163369
and JapicCTI163368 phase III trials. This article summarizes the milestones in
the development of clazosentan leading to this first approval in this
indication.