| Not Yet Recruiting | Continuous Assessment of Brain Blood Perfusion in Subarachnoid Hemorrhage Patients Using Near-Infrared Spectro NCT06932640 | University of Alabama at Birmingham | — |
| Not Yet Recruiting | Pronostic Factors in Elderly Patients Admitted to the Intensive Care Unit for Aneurysmal Subarachnoid Hemorrha NCT07508683 | Central Hospital, Nancy, France | — |
| Enrolling By Invitation | Screening in Relatives With Elevated Risk for Unruptured Intracranial Aneurysms NCT07387575 | University of Novi Sad | — |
| Recruiting | Infusion of Lidocaine and Steroids in Middle Meningeal Artery for Pain in Subarachnoid Hemorrhage NCT07294118 | The University of Texas Medical Branch, Galveston | Phase 2 |
| Recruiting | Effect of Xenon on Brain Injury After Aneurysmal Subarachnoid Hemorrhage NCT04696523 | Turku University Hospital | Phase 2 |
| Recruiting | Safety , Feasibility and Preliminary Efficacy of Remote Ischemic Conditioning in Patients With Aneurysmal Suba NCT06819657 | Beijing Tiantan Hospital | N/A |
| Recruiting | AI Models for Cerebral Aneurysms Segmentation, Detection and Stability Prediction NCT06766422 | Shanghai Jiao Tong University Affiliated Sixth People's Hospital | — |
| Recruiting | Complement Inhibition: Attacking the Overshooting Inflammation @Fter Subarachnoid Hemorrhage (CIAO@SAH) NCT06359782 | Haaglanden Medical Centre | Phase 2 |
| Not Yet Recruiting | Ultra-early STatin in Patients With Aneurysmal subaRachnoid Hemorrhage (Ue-STAR) NCT06559072 | The George Institute | Phase 3 |
| Recruiting | Mechanisms of Brain-Heart Injury of Post-Intracranial Hemorrhage NCT06906432 | Beijing Tiantan Hospital | — |
| Recruiting | Telavancin Blood and Cerebrospinal Fluid Concentrations in Patients With External Ventricular Drainage NCT06119061 | Aaron Cook | Phase 4 |
| Recruiting | Nimodipine Variability in SAH NCT07065903 | University of Alberta | — |
| Not Yet Recruiting | Intracranial Pressure and Optic Nerve Sheath Diameter With CLOSED Bundle NCT06057155 | IRCCS Istituto delle Scienze Neurologiche di Bologna | — |
| Unknown | Gamma Entrainment Stimulation for Cognitive Dysfunction After aSAH NCT06346015 | Beijing Tiantan Hospital | N/A |
| Unknown | Shuxuening Injection for the Prevention of CVS in Patients With aSAH(SXN-CVS) NCT06138353 | Xiaolin Chen, MD | Phase 2 / Phase 3 |
| Recruiting | Hemodynamic Instability of Patient With Spontaneous Subarachnoid Hemorrhage NCT06218654 | Fondazione Policlinico Universitario Agostino Gemelli IRCCS | — |
| Recruiting | BLOCK-SAH - PPF-Block for Post-SAH Headache NCT06008795 | University of Florida | Phase 2 |
| Completed | Pterygopalatine Fossa Block in Aneurysmal Subarachnoid Hemorrhage NCT05925478 | University of Texas Southwestern Medical Center | EARLY_Phase 1 |
| Recruiting | The Anaesthetic Ketamine as Treatment for Patients With Severe Acute Brain Injury NCT05095857 | Rigshospitalet, Denmark | Phase 4 |
| Recruiting | Remote Ischemic Conditioning in Aneurysmal SAH NCT06032533 | Aarhus University Hospital | N/A |
| Enrolling By Invitation | Cervical Sympathetic Block in Patients With Cerebral Vasospasm NCT05230134 | Stanford University | N/A |
| Recruiting | The Investigation of the Impact of Early Mobilization on the Outcome in Patients With Aneurysmal Subarachnoid NCT06436508 | University of Pecs | N/A |
| Terminated | Cerebral Nitrosative/Oxidative Stress in Aneurysmal Subarachnoid Haemorrhage NCT05686265 | Rigshospitalet, Denmark | — |
| Withdrawn | Pilot Study of Ketamine Sedation for Aneurysmal Subarachnoid Hemorrhage NCT05032118 | Jenna L Leclerc MD, PhD | Phase 2 / Phase 3 |
| Withdrawn | Effects of Head-of-Bed on Intracranial Pressure NCT05604404 | Milton S. Hershey Medical Center | N/A |
| Unknown | Magnesium Treating Subarachnoid Hemorrhage Vasospasm NCT04613960 | General Committee of Teaching Hospitals and Institutes, Egypt | Phase 2 / Phase 3 |
| Recruiting | Safety, Feasibility, and Efficacy of Non-invasive Vagus Nerve Stimulation (nVNS) in the Treatment of Aneurysma NCT05103566 | Massachusetts General Hospital | N/A |
| Unknown | Angiotensin Metabolite Profile After Subarachnoid Hemorrhage NCT05222542 | Dr. Roman Ullrich | — |
| Unknown | Intrasaccular neCk Occlusion deVice Treatment of Intracranial Aneurysm in Acute Subarachnoid hemorRhAGE NCT05171465 | Hospital Universitari Vall d'Hebron Research Institute | — |
| Completed | Molar Sodium Lactate Filling in Severe Meningeal Hemorrhage NCT04141371 | Centre Hospitalier Universitaire de Nice | Phase 3 |
| Active Not Recruiting | Epigenome-wide DNA Methylation Profiling in Aneurysmal Subarachnoid Hemorrhage and Delayed Ischemic Neurologic NCT06881329 | Pomeranian Medical University Szczecin | — |
| Recruiting | Augmented Renal Clearance in Neurocritical Care NCT07410624 | University of Alberta | — |
| Unknown | Early Warning of Delayed Cerebral Ischemia NCT06006975 | Vilnius University | — |
| Completed | Cerebrospinal Fluid Hemoglobin to Monitor for Aneurysmal Subarachnoid Hemorrhage Related Secondary Brain Injur NCT04998370 | University of Zurich | — |
| Unknown | Systemic Nitrosative/Oxidative Stress in Patients with Acute Brain Injury NCT04951453 | Rigshospitalet, Denmark | — |
| Recruiting | Poor Grade Aneurysmal Subarachnoid Hemorrhage Study Group NCT04945603 | IRCCS San Raffaele | — |
| Unknown | Effect of Targeted Temperature Management on Cerebral Autoregulation in Patients With Neurocritical Diseases NCT04728438 | Xiangya Hospital of Central South University | — |
| Withdrawn | Safety and Efficacy Study of Etanercept for Aneurysmal Subarachnoid Hemorrhage NCT01865630 | Unity Health Toronto | Phase 1 |
| Completed | Investigate the Relationship Between Inflammatory and Coagulation in SAH CSF NCT04938414 | Second Affiliated Hospital, School of Medicine, Zhejiang University | — |
| Unknown | Cerebral Nimodipine Concentrations Following Oral, Intra-venous and Intra-arterial Administration NCT04649398 | Medical University of Vienna | — |
| Terminated | Variability in Transcranial Doppler Technique in Neuro-Critical Care Patients NCT04583163 | Hackensack Meridian Health | — |
| Completed | Predicting 28-Day Mortality in Subarachnoid Hemorrhage NCT06563219 | Haseki Training and Research Hospital | — |
| Unknown | Stellate Ganglion Block in Preventing Cerebral Vasospasm Secondary to Subarachnoid Hemorrhage NCT04512859 | Beijing Tiantan Hospital | N/A |
| Unknown | Efficacy and Safety of Bivalirudin Versus Heparin During Coil Embolization in Patients With Ruptured Intracran NCT04532333 | Changhai Hospital | Phase 3 |
| Completed | Predictive Role of f-QRST Angle in Subarachnoid Hemorrhage NCT07196891 | Haseki Training and Research Hospital | — |
| Recruiting | Hippocampal Volume and Memory Functions in Aneurysmal Subarachnoid Hemorrhage NCT04449666 | BDH-Klinik Hessisch Oldendorf | — |
| Unknown | Appraising the Embolization of Aneurysms Using Balt Optima™ Coil System (APPLY Study) NCT04499508 | Vascular Neurology of Southern California Inc. | N/A |
| Completed | Safety and Efficacy of Non-invasive Vagus Nerve Stimulation in the Treatment of Headache in Subarachnoid Hemor NCT04126408 | Northwell Health | N/A |
| Recruiting | Prevention of Vasospasm in SAH Through CSF Treatment NCT04490161 | Medical University Innsbruck | N/A |
| Completed | Acetazolamide Challenge With Perfusion in the Prediction of Cerebral Vasospasm NCT03377049 | University of Wisconsin, Madison | Phase 4 |
| Unknown | Cerebral Autoregulation in Patients With Aneurysmal SubArachnoid Haemorrhage NCT03987139 | Rigshospitalet, Denmark | N/A |
| Completed | Induced Suppression of Platelets Activity in Aneurysmal SAH Management (iSPASM) NCT03691727 | David Hasan | Phase 1 / Phase 2 |
| Unknown | Glibenclamide in Aneurysmatic Subarachnoid Hemorrhage NCT03569540 | University of Sao Paulo General Hospital | Phase 4 |
| Completed | Subarachnoid Hemorrhage and Soluble Epoxide Hydrolase Inhibition Trial NCT03318783 | Oregon Health and Science University | Phase 1 / Phase 2 |
| Completed | Predictors of Rupture Risk of Intracranial Aneurysms NCT04613427 | University of Bergen | — |
| Completed | SAHaRA: A Randomized Controlled Trial NCT03309579 | Ottawa Hospital Research Institute | N/A |
| Unknown | Neuroinflammatory Response and Headache Control in Patients After Subarachnoid Hemorrhage NCT03604276 | MaineHealth | — |
| Unknown | A Multicenter Registry Study of Aneurysmal SAH NCT03094975 | Jian-min Liu | — |
| Completed | Detecting Sepsis in Patients With Severe Subarachnoideal Hemorrhage NCT05246969 | Goethe University | — |
| Unknown | Trial of Prophylactic Decompressive Craniectomy for Poor-grade Aneurysmal Subarachnoid Hemorrhage NCT02995928 | Tang-Du Hospital | N/A |
| Completed | A Registry Study for Emergency Medical Service of Aneurysmal Subarachnoid Hemorrhage in China NCT03115905 | Xuanwu Hospital, Beijing | — |
| Unknown | Multimodality Monitoring Directed Management of Aneurysmal Subarachnoid Haemorrhage NCT03010709 | Adel Helmy | — |
| Unknown | Evaluation of Neuroinflamation of SAH NCT03822260 | Bezmialem Vakif University | — |
| Completed | Noninvasive Assessment of Cerebral Oxygenation and Cardiac Function in Patients With Neurovascular Diseases NCT02991157 | National Institute of Mental Health and Neuro Sciences, India | — |
| Terminated | Safety/Pharmacokinetic Study Comparing Intracisternal EG-1962 to Standard of Care Enteral Nimodipine in Adults NCT02893826 | Edge Therapeutics Inc | Phase 1 |
| Unknown | New Therapeutic System of Ruptured Intracranial Aneurysms Based on Big Data From Chinese Population NCT03153748 | Changhai Hospital | — |
| Terminated | Study of EG-1962 Compared to Standard of Care Oral Nimodipine in Adults With Aneurysmal Subarachnoid Hemorrhag NCT02790632 | Edge Therapeutics Inc | Phase 3 |
| Completed | Bioavailability of Medium Chain Triglycerides (MCTs) in Comatose Patients With Acute Brain Injury (ABI) NCT02716532 | Société des Produits Nestlé (SPN) | N/A |
| Unknown | Predictive Values of Serum Adiponectin Levels in Aneurysmal Subarachnoid Hemorrhage. NCT02814162 | Tang-Du Hospital | — |
| Withdrawn | Mild Hypothermia During Intracranial Aneurysm Clipping NCT02544256 | University Hospital Hradec Kralove | N/A |
| Completed | Artificial Intelligence in Subarachnoid Hemorrhage NCT04415736 | Göteborg University | — |
| Unknown | Understanding Mental Fatigue After Subarachnoid Hemorrhage NCT06239142 | Sahlgrenska University Hospital | — |
| Completed | Interest of Tissue Oxygen Pressure (PtiO2) Monitoring to Detect a Vasospasm Post Aneurysmal Subarachnoid Hemor NCT03361722 | Fondation Ophtalmologique Adolphe de Rothschild | — |
| Unknown | Non-invasive Measuring of Cerebral Perfusion After Severe Brain Injury With Near-infrared-spectroscopy and ICG NCT01836848 | University of Cologne | N/A |
| Unknown | The Role of Deep Cerebral Vein Variation in Patients With Angiographic Negative Subarachnoid Hemorrhage NCT04941846 | Second Affiliated Hospital, School of Medicine, Zhejiang University | — |
| Terminated | Effects of Dexmedetomidine on Inflammatory Cytokines in Patients With Aneurysmal Subarachnoid Hemorrhage NCT01565590 | University of Cincinnati | Phase 3 |
| Unknown | Risk Factors for Aneurysm Rebleeding NCT01567449 | Fujian Medical University | — |
| Completed | Remote Ischemic Preconditioning in Subarachnoid Hemorrhage NCT01158508 | University of California, Los Angeles | Phase 1 |
| Recruiting | Epidemiological Insights Into the Formation, Progression, and Rupture of Intracranial Aneurysms: A Retrospecti NCT06456814 | Zhujiang Hospital | — |
| Completed | Risk Factors and Outcomes in Patients Treated in Neurocritical Care NCT07052656 | Karolinska Institutet | — |
| Completed | Dapsone Use in Patients With Aneurysmal Subarachnoid Hemorrhage. NCT05131295 | El Instituto Nacional de Neurologia y Neurocirugia Manuel Velasco Suarez | Phase 3 |
| Completed | Brain Aneurysms: Utility of Cisternal Urokinase Irrigation NCT04792944 | University of Valencia | — |
| Completed | Endothelin-1 and Methabolites Concentrations in Mycrodialysis and Cerebrospinal Fluid in Subarachnoid Hemorrha NCT01686763 | University of Turin, Italy | — |