Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 6, 2026, 11:41 PM EDT

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Showing 1–4 of 4 matching trials from the live ClinicalTrials.gov search.
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Conditions
Aneurysmal Subarachnoid Hemorrhage
Interventions
Clazosentan 5 m/h, Clazosentan 15 mg/h, Placebo
Drug
Lead sponsor
Idorsia Pharmaceuticals Ltd.
Industry
Eligibility
18 Years to 75 Years
Enrollment
577 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
29
States / cities
Glendale, California • San Francisco, California • Stanford, California + 21 more
Conditions
Aneurysmal Subarachnoid Hemorrhage
Interventions
Clazosentan, Placebo
Drug
Lead sponsor
Idorsia Pharmaceuticals Ltd.
Industry
Eligibility
18 Years to 75 Years
Enrollment
1,157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
11
States / cities
Phoenix, Arizona • Englewood, Colorado • Boston, Massachusetts + 8 more
Conditions
Aneurysmal Subarachnoid Hemorrhage
Interventions
Clazosentan 1 mg/h, Clazosentan 5 mg/h, Clazosentan 15 mg/h, Placebo
Drug
Lead sponsor
Idorsia Pharmaceuticals Ltd.
Industry
Eligibility
18 Years to 70 Years
Enrollment
413 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
10
States / cities
Peoria, Illinois • Indianapolis, Indiana • Baltimore, Maryland + 6 more
Conditions
Aneurysmal Subarachnoid Hemorrhage
Interventions
Clazosentan, Placebo
Drug
Lead sponsor
Idorsia Pharmaceuticals Ltd.
Industry
Eligibility
18 Years to 70 Years
Enrollment
409 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
16
States / cities
Stanford, California • Jacksonville, Florida • Chicago, Illinois + 11 more