| Not Yet Recruiting | The Effect of Transcutaneous Vagal Nerve Stimulation (tVNS) on Cerebral Vasospasm Secondary to Aneurysmal Suba NCT07131696 | Marshall Holland | N/A |
| Not Yet Recruiting | The Effect of Sympathetic Modulation on Cerebral Vasospasm Secondary to Aneurysmal Subarachnoid Hemorrhage NCT06443177 | University of Alabama at Birmingham | N/A |
| Not Yet Recruiting | Induced Suppression of Platelet Activity in Aneurysmal Subarachnoid Hemorrhage Management-2 (iSPASM-2) NCT07493577 | Dr David Hasan, M.D. | Phase 1 / Phase 2 |
| Recruiting | Tocilizumab-aazg for Hemorrhage: Reduction of Ischemic Vascular Events NCT06863480 | University of Florida | Phase 1 |
| Not Yet Recruiting | Dome-Only Aneurysm Coiling in Severe Aneurysmal Subarachnoid Hemorrhage NCT07250958 | University of Louisville | — |
| Not Yet Recruiting | Cilostazol With Nimodipine to Improve Outcome After Aneurysmal Subarachnoid Hemorrhage NCT07144956 | Centre Hospitalier St Anne | Phase 3 |
| Not Yet Recruiting | Cilostazol for Preventing Delayed Cerebral Ischemia in Aneurysmal Subarachnoid Hemorrhage NCT07249853 | Beijing Tiantan Hospital | Phase 3 |
| Not Yet Recruiting | Perfusion Imaging Score to Predict Delayed Cerebral Ischemia NCT07030985 | Stanford University | N/A |
| Not Yet Recruiting | Early Blood Pressure Intervention After Coiling or Clipping for Subarachnoid Hemorrhage NCT07149922 | Beijing Tiantan Hospital | N/A |
| Recruiting | FLudrocortisone Administration in Aneurysmal Subarachnoid Haemorrhage NCT06409364 | The George Institute | Phase 2 |
| Recruiting | Microvention AnEurysm & STroke Real-life Data cOllection NCT06494436 | Microvention-Terumo, Inc. | — |
| Not Yet Recruiting | Ultra-early STatin in Patients With Aneurysmal subaRachnoid Hemorrhage (Ue-STAR) NCT06559072 | The George Institute | Phase 3 |
| Recruiting | Human Albumin for Clinical Outcome in Aneurysmal Subarachnoid Hemorrhages NCT06548477 | Hamad Medical Corporation | N/A |
| Not Yet Recruiting | Early Versus Ultra Early Surgical Treatment of Ruptured Intracranial Aneurysms NCT06457347 | Revaz Dzhindzhikhadze | N/A |
| Withdrawn | Satralizumab in Aneurysmal Subarachnoid Hemorrhage NCT05727657 | University of Florida | EARLY_Phase 1 |
| Recruiting | Treatment of Vasospasm of Aneurysmal Subarachnoid Hemorrhage With Intrathecal Nicardipine - FAST-IT Trial NCT06329635 | The Affiliated Hospital Of Guizhou Medical University | N/A |
| Recruiting | aSAH Treatment Based on Intraventricular ICP Monitoring: A Prospective, Multicenter, Randomized and Controlled NCT06288659 | Huashan Hospital | N/A |
| Completed | Intraoperative Dexmedetomidine Infusion in Endovascular Intervention for Aneurysmal Subarachnoid Hemorrhage NCT06352593 | Tanta University | N/A |
| Recruiting | Early Lumbar Drainage Combined With Intrathecal Urokinase Injection for Treatment of Severe Aneurysmal SAH (LD NCT06284642 | Second Affiliated Hospital of Nanchang University | Phase 4 |
| Recruiting | Aneurysmal Subarachnoid Hemorrhage Multi-Omics Research Program NCT07270419 | Xiaolin Chen, MD | — |
| Recruiting | COAgulation Disorders in Ischaemic and Haemorrhagic Stroke NCT05974111 | Ziekenhuis Oost-Limburg | — |
| Unknown | Micro- and Macrovascular Parameters in Delayed Cerebral Ischemia NCT05483751 | Maastricht University Medical Center | — |
| Active Not Recruiting | Florida Cerebrovascular Disease Biorepository and Genomics Center NCT05491980 | Mayo Clinic | — |
| Recruiting | Deferoxamine In the Treatment of Aneurysmal Subarachnoid Hemorrhage (aSAH) NCT04566991 | Aditya S. Pandey, MD | Phase 2 |
| Unknown | Early Hydrogen-Oxygen Gas Mixture Inhalation in Patients With Aneurysmal Subarachnoid Hemorrhage (HOMA) NCT05282836 | Beijing Tiantan Hospital | N/A |
| Unknown | Brain Imaging After Non-traumatic Intracranial Hemorrhage (SAVEBRAINPWI) NCT05276934 | Erasme University Hospital | — |
| Completed | Chemical and Mechanical Angioplasty for Vasospasm (SAVEBRAIN) NCT05268445 | Erasme University Hospital | N/A |
| Recruiting | Improving Outcome in Subarachnoid Hemorrhage wIth Nadroparine NCT04507178 | Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) | Phase 2 |
| Unknown | Fight INflammation to Improve Outcome After Aneurysmal Subarachnoid HEmorRhage NCT05132920 | University Hospital, Bonn | Phase 3 |
| Completed | Impact of Multiple Electrolytes Injection Ⅱ and Saline on Hyperchloremia in Patients With Aneurysmal Subarachn NCT06076590 | Capital Medical University | Phase 4 |
| Completed | Relative Bioavailability of Intravenous GTX-104 Compared to Oral Nimodipine Capsules in Healthy Subjects NCT05418348 | Grace Therapeutics Inc. | Phase 1 |
| Recruiting | Cerebral Hemodynamic Optimization by Milrinone to Prevent Delayed Cerebral Ischemia NCT04282629 | University Hospital, Toulouse | Phase 2 |
| Recruiting | Study on Prognosis of Acutely Ruptured Intracranial Aneurysms NCT05851989 | Haaglanden Medical Centre | — |
| Unknown | Stellate Ganglion Block and Cerebral Vasospasm NCT04691271 | Beijing Tiantan Hospital | N/A |
| Unknown | Drug Intervention of Spontaneous Hyperventilation in Patients With Aneurysmal Subarachnoid Hemorrhage NCT04940273 | Capital Medical University | N/A |
| Completed | Early Brain Damage Assessment in Aneurysmal Subarachnoid Haemorrhage in Predicting Cognitive Impairment NCT06172556 | Hebei Medical University | — |
| Terminated | Variability in Transcranial Doppler Technique in Neuro-Critical Care Patients NCT04583163 | Hackensack Meridian Health | — |
| Completed | Effect of Inhalatory Sedation in Subarachnoid Hemorrhage NCT05213832 | A.O.U. Città della Salute e della Scienza | Phase 2 |
| Completed | A Safety and Efficacy Study of NicaPlant® in Aneurysmal Subarachnoid Haemorrhage Patients Undergoing Aneurysm NCT04269408 | BIT Pharma GmbH | Phase 2 |
| Unknown | Application of Magnesium-rich Artificial Cerebrospinal Fluid in Aneurysmal Subarachnoid Hemorrhage NCT04358445 | First Affiliated Hospital Xi'an Jiaotong University | N/A |
| Recruiting | Prevention of Vasospasm in SAH Through CSF Treatment NCT04490161 | Medical University Innsbruck | N/A |
| Unknown | Effect of Antiplatelet Therapy on Cognition After Aneurysmal Subarachnoid Hemorrhage NCT04548401 | Nanjing Medical University | — |
| Terminated | Cilostazol and Nimodipine Combined Therapy After Aneurysmal Subarachnoid Hemorrhage (aSAH) NCT04148105 | Henry Ford Health System | Phase 4 |
| Unknown | Delayed Cerebral Ischaemia and Coagulation Alterations After Aneurysmal Subarachnoid Haemorrhage NCT03985176 | Tampere University Hospital | — |
| Completed | Danish RAndomized Trial of External Ventricular Drainage Cessation IN Aneurysmal Subarachnoid Haemorrhage NCT03948256 | Rigshospitalet, Denmark | N/A |
| Unknown | The Optimal Dose of Mannitol for Intraoperative Brain Relaxation During the Operation of Aneurysmal Subarachno NCT04135456 | Beijing Tiantan Hospital | Phase 1 / Phase 2 |
| Completed | Clinical Research Study With Clazosentan to Evaluate Its Effects on Preventing Complications Due to the Narrow NCT03585270 | Idorsia Pharmaceuticals Ltd. | Phase 3 |
| Completed | SubArachnoid Hemorrhage HEadache Treated by Lumbar Puncture NCT03754335 | University Hospital, Toulouse | N/A |
| Recruiting | Multi-Center Registry Cohort Study on Prognostic Factors and Prediction Model Construction in Aneurysmal SAH NCT05738083 | Second Affiliated Hospital of Nanchang University | — |
| Unknown | Degradation of the Glycocalyx in Delayed Cerebral Ischemia After Aneurysmal Subarachnoid Hemorrhage NCT03706768 | University of Virginia | N/A |
| Unknown | Trial of Long-term Therapeutic Hypothermia for Poor-grade Aneurysmal Subarachnoid Hemorrhage NCT03442608 | Xuanwu Hospital, Beijing | N/A |
| Completed | Dysregulated CNS Inflammation After Acute Brain Injury NCT03287557 | University of Kentucky | — |
| Completed | Pharmaceutical Treatment of Fatigue After Aneurysmal Subarachnoid Hemorrhage NCT03209830 | Oslo University Hospital | Phase 2 |
| Unknown | Astragalus Membranaceus on Aneurysmal Subarachnoid Hemorrhage NCT03271697 | China Medical University Hospital | Phase 2 / Phase 3 |
| Suspended | Aneurysmal Subarachnoid Hemorrhage Trial RandOmizing Heparin NCT02501434 | Robert F. James | Phase 2 |
| Completed | Evaluation of the Efficacy and Safety of Clazosentan in Reversing Cerebral Vasospasm in Adult Subjects With An NCT02560532 | Idorsia Pharmaceuticals Ltd. | Phase 2 |
| Terminated | Efficacy and Safety Study of a Low-carbohydrate Tube Feed in Critically Ill Patients Under Insulin Therapy NCT02503527 | Fresenius Kabi | N/A |
| Completed | Gabapentin for Headache in Aneurysmal Subarachnoid Hemorrhage NCT02330094 | Mayo Clinic | Phase 4 |
| Unknown | Safety Study of Carotid Body Neurostimulation to Treat Cerebral Vasospasm NCT02129413 | Samson NeuroSciences | N/A |
| Unknown | The Role of Biomarker in Serum, Cerebrospinal Fluid and Parenchyma in the Context of Aneurysmal Subarachnoid H NCT02142166 | RWTH Aachen University | N/A |
| Terminated | Effects of Donepezil on Regional Cerebral Blood Flow Following Aneurysmal Subarachnoid Haemorrhage NCT02222727 | St George's, University of London | Phase 2 |
| Unknown | Prognostic Value of Circulating Endothelial Progenitor Cells in Aneurysmal Subarachnoid Hemorrhage NCT01773200 | Centre Hospitalier Universitaire de Besancon | — |
| Completed | SpareBrain - Mechanisms and Prevention of Secondary Brain Injury in Subarachnoid Haemorrhage NCT02026596 | Tampere University Hospital | — |
| Completed | Transcriptomic Signature of Vasospasm Consecutive to Sub-arachnoid Aneurismal Hemorrhage NCT01779713 | Institut National de la Santé Et de la Recherche Médicale, France | — |
| Completed | Hypercapnia to Prevent Secondary Ischemia in SAH NCT01799525 | Wuerzburg University Hospital | Phase 1 |
| Completed | Admission HbA1C in Aneurysmal Subarachnoid Hemorrhage NCT02081820 | Heinrich-Heine University, Duesseldorf | — |
| Recruiting | Long-term Prognosis of Emergency Aneurysmal Subarachnoid Hemorrhage NCT04785976 | Beijing Tiantan Hospital | — |
| Unknown | Ultrasound Perfusion Imaging After Aneurysmal Subarachnoid Hemorrhage NCT01537263 | Asklepios Kliniken Hamburg GmbH | — |
| Completed | Cerebrospinal Fluid (CSF) Drainage Study NCT01420978 | Mayo Clinic | N/A |
| Unknown | The Role of Statins in Preventing Cerebral Vasospasm Secondary to Subarachnoid Hemorrhage NCT01346748 | University of Sao Paulo General Hospital | Phase 4 |
| Completed | EARLYdrain - Outcome After Early Lumbar CSF-drainage in Aneurysmal SAH NCT01258257 | Charite University, Berlin, Germany | Phase 3 |
| Completed | Transdermal Nicotine Replacement in Smokers With Acute Aneurysmal Subarachnoid Hemorrhage NCT02350335 | Oslo University Hospital | N/A |
| Completed | The Effects of Tiopronin on 3-Aminopropanal Level & Neurologic Outcome After Aneurysmal Subarachnoid Hemorrhag NCT01095731 | E. Sander Connolly | Phase 2 |
| Unknown | Intraventricular Tissue Plasminogen Activator (tPA) in the Management of Aneurysmal Subarachnoid Hemorrhage NCT01098890 | University of Calgary | Phase 2 |
| Terminated | Clazosentan in Aneurysmal Subarachnoid Hemorrhage NCT00940095 | Idorsia Pharmaceuticals Ltd. | Phase 3 |
| Completed | Quality of Life in Elderly After Aneurysmal Subarachnoid Hemorrhage (SAH) NCT00692744 | University Hospital, Rouen | — |
| Completed | Cervical Spinal Cord Stimulation for the Prevention of Cerebral Vasospasm NCT00766844 | Konstantin V. Slavin | Phase 1 |
| Completed | Clazosentan in Reducing Vasospasm-related Morbidity and All-cause Mortality in Adult Patients With Aneurysmal NCT00558311 | Idorsia Pharmaceuticals Ltd. | Phase 3 |
| Completed | Dapsone Use in Patients With Aneurysmal Subarachnoid Hemorrhage. NCT05131295 | El Instituto Nacional de Neurologia y Neurocirugia Manuel Velasco Suarez | Phase 3 |
| Terminated | Use of Simvastatin for the Prevention of Vasospasm in Aneurysmal Subarachnoid Hemorrhage NCT00487461 | University of Illinois at Chicago | N/A |
| Terminated | Acetaminophen in aSAH to Inhibit Lipid Peroxidation and Cerebral Vasospasm NCT00585559 | Vanderbilt University Medical Center | Phase 3 |
| Completed | Erythropoietin Therapy for Subarachnoid Hemorrhage NCT00140010 | University of Cambridge | Phase 2 |
| Completed | Clazosentan in Preventing the Occurrence of Cerebral Vasospasm Following an Aneurysmal Subarachnoid Hemorrhage NCT00111085 | Idorsia Pharmaceuticals Ltd. | Phase 2 |
| Completed | Admission Bio-clinical Score to Predict One-year Outcomes in Coiled Subarachnoid Hemorrhage (SAH) NCT01357057 | Assistance Publique - Hôpitaux de Paris | — |
| Unknown | Monitoring Brain Activity in Human Brain Injury NCT00258505 | Soroka University Medical Center | — |