Systemic Nitrosative/Oxidative Stress in Patients with Acute Brain Injury
NOX
1 other identifier
observational
150
1 country
1
Brief Summary
Acute brain injury due to traumatic brain injury (TBI), intracerebral haemorrhage (ICH), and aneurysmal subarachnoid haemorrhage (SAH) carries a high morbidity and mortality, in part due to the development of secondary brain injury. The mechanisms behind secondary brain injury are incompletely understood, but oxidative/nitrosative stress and disturbances in the metabolism of the vasodilator nitric oxide (NO) are believed to be involved. The aim of the present study is to characterise systemic changes in markers of oxidative/nitrosative stress and NO metabolism in the early phase after acute brain injury, and to examine their relationship to clinical course, neurological outcome, and mortality.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Aug 2021
Longer than P75 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 28, 2021
CompletedFirst Posted
Study publicly available on registry
July 6, 2021
CompletedStudy Start
First participant enrolled
August 18, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 30, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
September 1, 2025
CompletedNovember 15, 2024
March 1, 2024
2.7 years
June 28, 2021
November 13, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Neurological outcome (modified Rankin scale)
Neurological outcome as assessed using the modified Rankin Scale, which measures the degree of disability on a scale from 0 to 6 (higher score indicates a worse outcome)
6 months
Secondary Outcomes (3)
Mortality
6 months
Neuroworsening
Within 14 days
Delayed Cerebral Ischaemia (DCI)
Within 14 days
Other Outcomes (7)
Levels of brain injury biomarkers
Within 14 days
Angiographic vasospasm
Within 14 days
Length of stay
During hospitalisation
- +4 more other outcomes
Study Arms (3)
Aneurysmal subarachnoid haemorrhage
Patients with SAH (see eligibility criteria below). Planned enrollment: 50 patients.
Intracerebral haemorrhage
Patients with ICH (see eligibility criteria below). Planned enrollment: 50 patients.
Traumatic Brain Injury
Patients with TBI (see eligibility criteria below). Planned enrollment: 50 patients.
Interventions
None (observational)
Eligibility Criteria
Patients with acute brain injury (SAH, ICH or TBI) admitted to the NICU at Rigshospitalet - see detailed inclusion and exclusion criteria above.
You may qualify if:
- Admission to the Neurointensive Care Unit (NICU) at Rigshospitalet
- Diagnosis of TBI, spontaneous ICH or aneurysmal SAH
- Initiation of blood sampling possible within 3 days after ictus
- Expected length of stay in the NICU and/or intermediate care unit of ≥48 hours
- Closest relatives understand written and spoken Danish
You may not qualify if:
- Expected death within 24 hours
- ICH secondary to other causes (e.g., a tumour or arteriovenous malformation)
- SAH secondary to other causes (e.g., a mycotic aneurysm or arteriovenous malformation)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Rigshospitalet, Denmarklead
- University of South Walescollaborator
Study Sites (1)
Rigshospitalet
Copenhagen, DK-2100, Denmark
Related Publications (16)
Morris GF, Juul N, Marshall SB, Benedict B, Marshall LF. Neurological deterioration as a potential alternative endpoint in human clinical trials of experimental pharmacological agents for treatment of severe traumatic brain injuries. Executive Committee of the International Selfotel Trial. Neurosurgery. 1998 Dec;43(6):1369-72; discussion 1372-4.
PMID: 9848851BACKGROUNDVergouwen MD, Vermeulen M, van Gijn J, Rinkel GJ, Wijdicks EF, Muizelaar JP, Mendelow AD, Juvela S, Yonas H, Terbrugge KG, Macdonald RL, Diringer MN, Broderick JP, Dreier JP, Roos YB. Definition of delayed cerebral ischemia after aneurysmal subarachnoid hemorrhage as an outcome event in clinical trials and observational studies: proposal of a multidisciplinary research group. Stroke. 2010 Oct;41(10):2391-5. doi: 10.1161/STROKEAHA.110.589275. Epub 2010 Aug 26.
PMID: 20798370BACKGROUNDStocchetti N, Taccone FS, Citerio G, Pepe PE, Le Roux PD, Oddo M, Polderman KH, Stevens RD, Barsan W, Maas AI, Meyfroidt G, Bell MJ, Silbergleit R, Vespa PM, Faden AI, Helbok R, Tisherman S, Zanier ER, Valenzuela T, Wendon J, Menon DK, Vincent JL. Neuroprotection in acute brain injury: an up-to-date review. Crit Care. 2015 Apr 21;19(1):186. doi: 10.1186/s13054-015-0887-8.
PMID: 25896893BACKGROUNDWerner C, Engelhard K. Pathophysiology of traumatic brain injury. Br J Anaesth. 2007 Jul;99(1):4-9. doi: 10.1093/bja/aem131.
PMID: 17573392BACKGROUNDPacher P, Beckman JS, Liaudet L. Nitric oxide and peroxynitrite in health and disease. Physiol Rev. 2007 Jan;87(1):315-424. doi: 10.1152/physrev.00029.2006.
PMID: 17237348BACKGROUNDGarry PS, Ezra M, Rowland MJ, Westbrook J, Pattinson KT. The role of the nitric oxide pathway in brain injury and its treatment--from bench to bedside. Exp Neurol. 2015 Jan;263:235-43. doi: 10.1016/j.expneurol.2014.10.017. Epub 2014 Oct 29.
PMID: 25447937BACKGROUNDToda N, Ayajiki K, Okamura T. Cerebral blood flow regulation by nitric oxide: recent advances. Pharmacol Rev. 2009 Mar;61(1):62-97. doi: 10.1124/pr.108.000547. Epub 2009 Mar 16.
PMID: 19293146BACKGROUNDCherian L, Goodman JC, Robertson CS. Brain nitric oxide changes after controlled cortical impact injury in rats. J Neurophysiol. 2000 Apr;83(4):2171-8. doi: 10.1152/jn.2000.83.4.2171.
PMID: 10758126BACKGROUNDSehba FA, Schwartz AY, Chereshnev I, Bederson JB. Acute decrease in cerebral nitric oxide levels after subarachnoid hemorrhage. J Cereb Blood Flow Metab. 2000 Mar;20(3):604-11. doi: 10.1097/00004647-200003000-00018.
PMID: 10724124BACKGROUNDSehba FA, Bederson JB. Nitric oxide in early brain injury after subarachnoid hemorrhage. Acta Neurochir Suppl. 2011;110(Pt 1):99-103. doi: 10.1007/978-3-7091-0353-1_18.
PMID: 21116923BACKGROUNDSobey CG, Faraci FM. Subarachnoid haemorrhage: what happens to the cerebral arteries? Clin Exp Pharmacol Physiol. 1998 Nov;25(11):867-76. doi: 10.1111/j.1440-1681.1998.tb02337.x.
PMID: 9807657BACKGROUNDSehba FA, Chereshnev I, Maayani S, Friedrich V Jr, Bederson JB. Nitric oxide synthase in acute alteration of nitric oxide levels after subarachnoid hemorrhage. Neurosurgery. 2004 Sep;55(3):671-7; discussion 677-8. doi: 10.1227/01.neu.0000134557.82423.b2.
PMID: 15335435BACKGROUNDHino A, Tokuyama Y, Weir B, Takeda J, Yano H, Bell GI, Macdonald RL. Changes in endothelial nitric oxide synthase mRNA during vasospasm after subarachnoid hemorrhage in monkeys. Neurosurgery. 1996 Sep;39(3):562-7; discussion 567-8. doi: 10.1097/00006123-199609000-00026.
PMID: 8875487BACKGROUNDJung CS, Oldfield EH, Harvey-White J, Espey MG, Zimmermann M, Seifert V, Pluta RM. Association of an endogenous inhibitor of nitric oxide synthase with cerebral vasospasm in patients with aneurysmal subarachnoid hemorrhage. J Neurosurg. 2007 Nov;107(5):945-50. doi: 10.3171/JNS-07/11/0945.
PMID: 17977265BACKGROUNDPluta RM. Dysfunction of nitric oxide synthases as a cause and therapeutic target in delayed cerebral vasospasm after SAH. Acta Neurochir Suppl. 2008;104:139-47. doi: 10.1007/978-3-211-75718-5_28.
PMID: 18456999BACKGROUNDBailey DM, Taudorf S, Berg RM, Lundby C, McEneny J, Young IS, Evans KA, James PE, Shore A, Hullin DA, McCord JM, Pedersen BK, Moller K. Increased cerebral output of free radicals during hypoxia: implications for acute mountain sickness? Am J Physiol Regul Integr Comp Physiol. 2009 Nov;297(5):R1283-92. doi: 10.1152/ajpregu.00366.2009. Epub 2009 Sep 2.
PMID: 19726713BACKGROUND
Biospecimen
Blood (whole blood, serum, plasma, and red blood cells)
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Anton Lund, MD
Rigshospitalet, Denmark
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- MD
Study Record Dates
First Submitted
June 28, 2021
First Posted
July 6, 2021
Study Start
August 18, 2021
Primary Completion
April 30, 2024
Study Completion
September 1, 2025
Last Updated
November 15, 2024
Record last verified: 2024-03
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL
- Time Frame
- The approved study protocol will be available upon request until publication of the study results.
- Access Criteria
- Valid reason and contact with author.
Data from each individual participant will be available after publication of planned manuscripts, with a valid reason, and after signing a data processing agreement.