NCT02501941

Brief Summary

Hypothesis: Cortical spreading depolarizations are inhibited by the NMDA receptor antagonist Ketamine Aim 1: To demonstrate, in a group of patients with acute severe brain injury requiring surgery including traumatic brain injury and aneurysmal subarachnoid hemorrhage, whether use of continuous infusion of ketamine decreases frequency of occurrence of cortical spreading depolarizations.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
10

participants targeted

Target at below P25 for phase_1

Timeline
Completed

Started Jul 2015

Geographic Reach
1 country

1 active site

Status
completed

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

Study Start

First participant enrolled

July 1, 2015

Completed
13 days until next milestone

First Submitted

Initial submission to the registry

July 14, 2015

Completed
3 days until next milestone

First Posted

Study publicly available on registry

July 17, 2015

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2017

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2017

Completed
Last Updated

January 11, 2024

Status Verified

January 1, 2024

Enrollment Period

1.5 years

First QC Date

July 14, 2015

Last Update Submit

January 9, 2024

Conditions

Keywords

KetamineCortical Spreading DepolarizationCortical Spreading Depression

Outcome Measures

Primary Outcomes (1)

  • Change in frequency of Cortical Spreading depression with use of ketamine

    Frequency of events as defined by propagating slow potential change in adjacent leads with associated suppression of high frequency signal. Assessed by 2 experienced reviewers blinded to sedation arm.

    approximately 7 days

Secondary Outcomes (7)

  • Change in frequency of Cortical Spreading depolarization with stimulation to patient

    approximately 7 days

  • Change in frequency of Cortical Spreading depolarization with varying doses of ketamine

    approximately 7 days

  • Presence of Scalp EEG tracings correlates to cortical spreading depolarization

    approximately 7 days

  • Correlation between pre-operative neurologic exam (GCS) and amount and frequency of cortical spreading depolarizations

    approximately 7 days

  • Correlation between post-operative neurologic exam (GCS) and amount and frequency of cortical spreading depolarizations

    approximately 7 days

  • +2 more secondary outcomes

Study Arms (2)

Ketamine first

EXPERIMENTAL

Randomization to receive ketamine as first post-operative sedative in the Neuroscience Intensive Care unit. This group will cross-over to "other sedation" after 6 hours, then alternate every 6 hours between these groups during the entirety of invasive neuromonitoring.

Drug: ketamine

Other sedation (typically propofol) first

EXPERIMENTAL

Randomization to receive sedative other than ketamine as first post-operative sedative in the Neuroscience Intensive Care unit. This group will cross-over to ketamine after 6 hours, then alternate every 6 hours between these groups during the entirety of invasive neuromonitoring.

Drug: ketamine

Interventions

Ketamine will be used as a sedative alternative to other more conventional sedatives (such as propofol, versed, or dexmedetomidine) in 6 hour blocks of time. Ketamine will be titrated at the bedside based on clinically desired Riker Sedation-Agitation Scale target. Both groups will receive the drug in this multiple crossover design. The only difference between groups is which sedation regimen is started first to minimize any bias related to differences in physiology in the early post-operative phase.

Ketamine firstOther sedation (typically propofol) first

Eligibility Criteria

Age18 Years - 90 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • GCS \<8
  • SAH or severe traumatic brain injury requiring craniotomy
  • Consent obtainable (via legal representative)
  • Ictus (bleed or injury) within 48 hours of enrollment
  • Clinically appropriate for multimodality monitoring

You may not qualify if:

  • Anticipated survival \<48 hours
  • No craniotomy
  • Infratentorial craniotomy only•Unable to obtain consent
  • Absence of clinically used multimodality monitoring
  • Prisoners
  • Pregnant

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of New Mexico

Albuquerque, New Mexico, 87131, United States

Location

Related Publications (25)

  • Dreier JP, Isele T, Reiffurth C, Offenhauser N, Kirov SA, Dahlem MA, Herreras O. Is spreading depolarization characterized by an abrupt, massive release of gibbs free energy from the human brain cortex? Neuroscientist. 2013 Feb;19(1):25-42. doi: 10.1177/1073858412453340. Epub 2012 Jul 24.

    PMID: 22829393BACKGROUND
  • Strong AJ, Fabricius M, Boutelle MG, Hibbins SJ, Hopwood SE, Jones R, Parkin MC, Lauritzen M. Spreading and synchronous depressions of cortical activity in acutely injured human brain. Stroke. 2002 Dec;33(12):2738-43. doi: 10.1161/01.str.0000043073.69602.09.

    PMID: 12468763BACKGROUND
  • Fabricius M, Fuhr S, Bhatia R, Boutelle M, Hashemi P, Strong AJ, Lauritzen M. Cortical spreading depression and peri-infarct depolarization in acutely injured human cerebral cortex. Brain. 2006 Mar;129(Pt 3):778-90. doi: 10.1093/brain/awh716. Epub 2005 Dec 19.

    PMID: 16364954BACKGROUND
  • Dohmen C, Sakowitz OW, Fabricius M, Bosche B, Reithmeier T, Ernestus RI, Brinker G, Dreier JP, Woitzik J, Strong AJ, Graf R; Co-Operative Study of Brain Injury Depolarisations (COSBID). Spreading depolarizations occur in human ischemic stroke with high incidence. Ann Neurol. 2008 Jun;63(6):720-8. doi: 10.1002/ana.21390.

    PMID: 18496842BACKGROUND
  • Jeffcote T, Hinzman JM, Jewell SL, Learney RM, Pahl C, Tolias C, Walsh DC, Hocker S, Zakrzewska A, Fabricius ME, Strong AJ, Hartings JA, Boutelle MG. Detection of spreading depolarization with intraparenchymal electrodes in the injured human brain. Neurocrit Care. 2014 Feb;20(1):21-31. doi: 10.1007/s12028-013-9938-7.

    PMID: 24343564BACKGROUND
  • Drenckhahn C, Winkler MK, Major S, Scheel M, Kang EJ, Pinczolits A, Grozea C, Hartings JA, Woitzik J, Dreier JP; COSBID study group. Correlates of spreading depolarization in human scalp electroencephalography. Brain. 2012 Mar;135(Pt 3):853-68. doi: 10.1093/brain/aws010.

    PMID: 22366798BACKGROUND
  • Hartings JA, Wilson JA, Hinzman JM, Pollandt S, Dreier JP, DiNapoli V, Ficker DM, Shutter LA, Andaluz N. Spreading depression in continuous electroencephalography of brain trauma. Ann Neurol. 2014 Nov;76(5):681-94. doi: 10.1002/ana.24256. Epub 2014 Sep 17.

    PMID: 25154587BACKGROUND
  • Nakamura H, Strong AJ, Dohmen C, Sakowitz OW, Vollmar S, Sue M, Kracht L, Hashemi P, Bhatia R, Yoshimine T, Dreier JP, Dunn AK, Graf R. Spreading depolarizations cycle around and enlarge focal ischaemic brain lesions. Brain. 2010 Jul;133(Pt 7):1994-2006. doi: 10.1093/brain/awq117. Epub 2010 May 26.

    PMID: 20504874BACKGROUND
  • Dreier JP, Major S, Manning A, Woitzik J, Drenckhahn C, Steinbrink J, Tolias C, Oliveira-Ferreira AI, Fabricius M, Hartings JA, Vajkoczy P, Lauritzen M, Dirnagl U, Bohner G, Strong AJ; COSBID study group. Cortical spreading ischaemia is a novel process involved in ischaemic damage in patients with aneurysmal subarachnoid haemorrhage. Brain. 2009 Jul;132(Pt 7):1866-81. doi: 10.1093/brain/awp102. Epub 2009 May 6.

    PMID: 19420089BACKGROUND
  • Hinzman JM, Andaluz N, Shutter LA, Okonkwo DO, Pahl C, Strong AJ, Dreier JP, Hartings JA. Inverse neurovascular coupling to cortical spreading depolarizations in severe brain trauma. Brain. 2014 Nov;137(Pt 11):2960-72. doi: 10.1093/brain/awu241. Epub 2014 Aug 24.

    PMID: 25154387BACKGROUND
  • Bosche B, Graf R, Ernestus RI, Dohmen C, Reithmeier T, Brinker G, Strong AJ, Dreier JP, Woitzik J; Members of the Cooperative Study of Brain Injury Depolarizations (COSBID). Recurrent spreading depolarizations after subarachnoid hemorrhage decreases oxygen availability in human cerebral cortex. Ann Neurol. 2010 May;67(5):607-17. doi: 10.1002/ana.21943.

    PMID: 20437558BACKGROUND
  • Feuerstein D, Manning A, Hashemi P, Bhatia R, Fabricius M, Tolias C, Pahl C, Ervine M, Strong AJ, Boutelle MG. Dynamic metabolic response to multiple spreading depolarizations in patients with acute brain injury: an online microdialysis study. J Cereb Blood Flow Metab. 2010 Jul;30(7):1343-55. doi: 10.1038/jcbfm.2010.17. Epub 2010 Feb 10.

    PMID: 20145653BACKGROUND
  • Dreier JP, Woitzik J, Fabricius M, Bhatia R, Major S, Drenckhahn C, Lehmann TN, Sarrafzadeh A, Willumsen L, Hartings JA, Sakowitz OW, Seemann JH, Thieme A, Lauritzen M, Strong AJ. Delayed ischaemic neurological deficits after subarachnoid haemorrhage are associated with clusters of spreading depolarizations. Brain. 2006 Dec;129(Pt 12):3224-37. doi: 10.1093/brain/awl297. Epub 2006 Oct 25.

    PMID: 17067993BACKGROUND
  • Hartings JA, Strong AJ, Fabricius M, Manning A, Bhatia R, Dreier JP, Mazzeo AT, Tortella FC, Bullock MR; Co-Operative Study of Brain Injury Depolarizations. Spreading depolarizations and late secondary insults after traumatic brain injury. J Neurotrauma. 2009 Nov;26(11):1857-66. doi: 10.1089/neu.2009.0961.

    PMID: 19508156BACKGROUND
  • Hartings JA, Bullock MR, Okonkwo DO, Murray LS, Murray GD, Fabricius M, Maas AI, Woitzik J, Sakowitz O, Mathern B, Roozenbeek B, Lingsma H, Dreier JP, Puccio AM, Shutter LA, Pahl C, Strong AJ; Co-Operative Study on Brain Injury Depolarisations. Spreading depolarisations and outcome after traumatic brain injury: a prospective observational study. Lancet Neurol. 2011 Dec;10(12):1058-64. doi: 10.1016/S1474-4422(11)70243-5. Epub 2011 Nov 3.

    PMID: 22056157BACKGROUND
  • Strong AJ, Hartings JA, Dreier JP. Cortical spreading depression: an adverse but treatable factor in intensive care? Curr Opin Crit Care. 2007 Apr;13(2):126-33. doi: 10.1097/MCC.0b013e32807faffb.

    PMID: 17327732BACKGROUND
  • Sanchez-Porras R, Santos E, Scholl M, Stock C, Zheng Z, Schiebel P, Orakcioglu B, Unterberg AW, Sakowitz OW. The effect of ketamine on optical and electrical characteristics of spreading depolarizations in gyrencephalic swine cortex. Neuropharmacology. 2014 Sep;84:52-61. doi: 10.1016/j.neuropharm.2014.04.018. Epub 2014 May 4.

    PMID: 24796257BACKGROUND
  • Sakowitz OW, Kiening KL, Krajewski KL, Sarrafzadeh AS, Fabricius M, Strong AJ, Unterberg AW, Dreier JP. Preliminary evidence that ketamine inhibits spreading depolarizations in acute human brain injury. Stroke. 2009 Aug;40(8):e519-22. doi: 10.1161/STROKEAHA.109.549303. Epub 2009 Jun 11.

    PMID: 19520992BACKGROUND
  • Hertle DN, Dreier JP, Woitzik J, Hartings JA, Bullock R, Okonkwo DO, Shutter LA, Vidgeon S, Strong AJ, Kowoll C, Dohmen C, Diedler J, Veltkamp R, Bruckner T, Unterberg AW, Sakowitz OW; Cooperative Study of Brain Injury Depolarizations (COSBID). Effect of analgesics and sedatives on the occurrence of spreading depolarizations accompanying acute brain injury. Brain. 2012 Aug;135(Pt 8):2390-8. doi: 10.1093/brain/aws152. Epub 2012 Jun 19.

    PMID: 22719001BACKGROUND
  • Riker RR, Picard JT, Fraser GL. Prospective evaluation of the Sedation-Agitation Scale for adult critically ill patients. Crit Care Med. 1999 Jul;27(7):1325-9. doi: 10.1097/00003246-199907000-00022.

    PMID: 10446827BACKGROUND
  • Hocking G, Cousins MJ. Ketamine in chronic pain management: an evidence-based review. Anesth Analg. 2003 Dec;97(6):1730-1739. doi: 10.1213/01.ANE.0000086618.28845.9B.

    PMID: 14633551BACKGROUND
  • Correll GE, Maleki J, Gracely EJ, Muir JJ, Harbut RE. Subanesthetic ketamine infusion therapy: a retrospective analysis of a novel therapeutic approach to complex regional pain syndrome. Pain Med. 2004 Sep;5(3):263-75. doi: 10.1111/j.1526-4637.2004.04043.x.

    PMID: 15367304BACKGROUND
  • Elia N, Tramer MR. Ketamine and postoperative pain--a quantitative systematic review of randomised trials. Pain. 2005 Jan;113(1-2):61-70. doi: 10.1016/j.pain.2004.09.036.

    PMID: 15621365BACKGROUND
  • Murrough JW, Iosifescu DV, Chang LC, Al Jurdi RK, Green CE, Perez AM, Iqbal S, Pillemer S, Foulkes A, Shah A, Charney DS, Mathew SJ. Antidepressant efficacy of ketamine in treatment-resistant major depression: a two-site randomized controlled trial. Am J Psychiatry. 2013 Oct;170(10):1134-42. doi: 10.1176/appi.ajp.2013.13030392.

    PMID: 23982301BACKGROUND
  • Carlson AP, Abbas M, Alunday RL, Qeadan F, Shuttleworth CW. Spreading depolarization in acute brain injury inhibited by ketamine: a prospective, randomized, multiple crossover trial. J Neurosurg. 2018 May 25;130(5):1513-1519. doi: 10.3171/2017.12.JNS171665. Print 2019 May 1.

MeSH Terms

Conditions

Brain Injuries, Traumatic

Interventions

Ketamine

Condition Hierarchy (Ancestors)

Brain InjuriesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesCraniocerebral TraumaTrauma, Nervous SystemWounds and Injuries

Intervention Hierarchy (Ancestors)

CyclohexanesCycloparaffinsHydrocarbons, AlicyclicHydrocarbons, CyclicHydrocarbonsOrganic Chemicals

Study Officials

  • Andrew P Carlson, MD

    University of New Mexico

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

July 14, 2015

First Posted

July 17, 2015

Study Start

July 1, 2015

Primary Completion

January 1, 2017

Study Completion

May 1, 2017

Last Updated

January 11, 2024

Record last verified: 2024-01

Locations