Clinical Research Study With Clazosentan to Evaluate Its Effects on Preventing Complications Due to the Narrowing of the Blood Vessels (Vasospasm) in the Brain, Caused by Bleeding Onto the Surface of the Brain
Public ClinicalTrials.gov record NCT03585270. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Prospective, Multi-center, Double-blind, Randomized, Placebo-controlled, Parallel-group, Phase 3 Study to Assess the Efficacy and Safety of Clazosentan in Preventing Clinical Deterioration Due to Delayed Cerebral Ischemia (DCI), in Adult Subjects With Aneurysmal Subarachnoid Hemorrhage (aSAH)
Study identification
- NCT ID
- NCT03585270
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Lead sponsor
- Idorsia Pharmaceuticals Ltd.
- Industry
- Enrollment
- 409 participants
Conditions and interventions
Conditions
Interventions
- Clazosentan Drug
- Placebo Drug
Drug
Eligibility (public fields only)
- Age range
- 18 Years to 70 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Feb 2, 2019
- Primary completion
- Jun 12, 2022
- Completion
- Nov 17, 2022
- Last update posted
- Jan 9, 2024
2019 – 2022
United States locations
- U.S. sites
- 16
- U.S. states
- 12
- U.S. cities
- 14
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Stanford Hospital & Clinics - Stanford School of Medicine Dept. of Neurosurgery | Stanford | California | 94305 | — |
| Mayo clinic, Dept of Neurosurgery | Jacksonville | Florida | 32224 | — |
| University of Illinois - Department of Neurosurgery | Chicago | Illinois | 60612 | — |
| University of Maryland Medical Systems - Neurosurgery | Baltimore | Maryland | 21201 | — |
| Boston University School of Medicine / Boston University Medical Center | Boston | Massachusetts | 02118 | — |
| Beth Israel Deaconess Medical Center Dept of Neurosurgery | Boston | Massachusetts | 02215 | — |
| Northwell Health, Department of Neurosurgery | Manhasset | New York | 11030 | — |
| Mt Sinai Hospital | New York | New York | 10029 | — |
| Columbia University Medical Center Dept. of Neurology - Neurological Intensive Care Unit | New York | New York | 10032 | — |
| University Hospitals Case Medical Center - Department of Neurosurgery | Cleveland | Ohio | 44106 | — |
| The Ohio State University - Wexner Medical Center | Columbus | Ohio | 43210 | — |
| Oklahoma University Health Sciences Center - Department of Neurology | Oklahoma City | Oklahoma | 73104 | — |
| Oregon Health and Science University | Portland | Oregon | 97239 | — |
| Penn State Milton S Hershey Medical Center, Neurosurgery | Hershey | Pennsylvania | 17033 | — |
| Vanderbilt University Medical Center - Department of Neurosurgery | Nashville | Tennessee | 37232 | — |
| Virginia Commonwealth University, Department of Neurosurgery | Richmond | Virginia | 23298 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 64 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03585270, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jan 9, 2024 · Synced Jul 21, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03585270 live on ClinicalTrials.gov.