Controlling Hyperadrenergic Activity in Neurologic Injury
NCT ID: NCT01343329
Last Updated: 2017-04-20
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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WITHDRAWN
PHASE1/PHASE2
INTERVENTIONAL
2011-07-31
2014-02-14
Brief Summary
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
NONE
Study Groups
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Subjects Receiving Esmolol
The Esmolol arm is defined as a 48-hour intravenous infusion of esmolol (Brevibloc 20mg/ml), which will be started on enrollment.
Esmolol
The Esmolol arm is defined as a 48-hour intravenous infusion of esmolol (Brevibloc 20mg/ml), which will be started on enrollment. The infusion rate will begin at 50 micrograms/kg/min and be adjusted to achieve heart rates between 80 and 100 beats/min with standard dosing regimens used in our Neuro intensive care unit. The infusion will be started at a rate of 0.05 milligrams/kg/min (50 micrograms/kg/min) for 5 minutes. After the 5 minutes of initial infusion, maintenance infusion may be continued at 0.05 mg/kg/min or increased stepwise (e.g. 0.1 mg/kg/min, 0.15 mg/kg/min to a maximum of 0.2 mg/kg/min) with each step being maintained for 4 or more minutes until the target heart rate is achieved.
Subjects receiving Propranolol
The comparison arm will be comprised of oral propranolol, starting with 20mg PO every 6 hours prn (as needed) to reduce heart rate into target range. If 20mg is ineffective, the dose will be doubled at each dosing interval until an adequate dose is found, not to exceed 120mg four times daily. (ex: 20mg, 40mg, 80mg, 120mg)
Propranolol
The comparison arm will be comprised of oral propranolol, starting with 20mg PO every 6 hours prn (as needed) to reduce heart rate into target range. If 20mg is ineffective, the dose will be doubled at each dosing interval until an adequate dose is found, not to exceed 120mg four times daily. (ex: 20mg, 40mg, 80mg, 120mg)
Interventions
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Esmolol
The Esmolol arm is defined as a 48-hour intravenous infusion of esmolol (Brevibloc 20mg/ml), which will be started on enrollment. The infusion rate will begin at 50 micrograms/kg/min and be adjusted to achieve heart rates between 80 and 100 beats/min with standard dosing regimens used in our Neuro intensive care unit. The infusion will be started at a rate of 0.05 milligrams/kg/min (50 micrograms/kg/min) for 5 minutes. After the 5 minutes of initial infusion, maintenance infusion may be continued at 0.05 mg/kg/min or increased stepwise (e.g. 0.1 mg/kg/min, 0.15 mg/kg/min to a maximum of 0.2 mg/kg/min) with each step being maintained for 4 or more minutes until the target heart rate is achieved.
Propranolol
The comparison arm will be comprised of oral propranolol, starting with 20mg PO every 6 hours prn (as needed) to reduce heart rate into target range. If 20mg is ineffective, the dose will be doubled at each dosing interval until an adequate dose is found, not to exceed 120mg four times daily. (ex: 20mg, 40mg, 80mg, 120mg)
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* Hyperadrenergic Activity: At least one paroxysmal episode (lasting at least 15 minutes) of Heart Rate 110 beats per minute during two or more consecutive days plus at least two more of the following that may not be better explained by another disease process (ex: sepsis):
Temperature of 38.5C Respiratory Rate 20 breaths per minute Agitation Diaphoresis Dystonia Stimulus responsive ("triggering of paroxysm")
\- Informed Consent obtained
Exclusion Criteria
* Age \<18 years
* Pregnancy
* Hypotension - requiring pressor therapy to maintain baseline adequate CPP or mean arterial pressure
* Cardiac arrhythmia - sinus bradycardia (HR \<60), 2nd or 3rd degree AV block
* Hemodynamic contraindications to intravenous beta-blockade such as a documented history of congestive heart failure (CHF), dependency on cardiac inotropes or documented bronchospastic disease
* Any patient on chronic beta blockade as an outpatient.
* Life expectancy \< 48 hours or patients with "do not resuscitate orders"
* Ongoing seizure activity
* Informed consent not obtained
18 Years
100 Years
ALL
No
Sponsors
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Johns Hopkins University
OTHER
Responsible Party
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Wendy Ziai
Associate Professor
Principal Investigators
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Wendy Ziai, MD
Role: PRINCIPAL_INVESTIGATOR
Johns Hopkins University
Locations
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Johns Hopkins Hospital
Baltimore, Maryland, United States
Countries
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References
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Hortnagl H, Hammerle AF, Hackl JM, Brucke T, Rumpl E, Hortnagl H. The activity of the sympathetic nervous system following severe head injury. Intensive Care Med. 1980 May;6(3):169--7. doi: 10.1007/BF01757299.
Baguley IJ. Autonomic complications following central nervous system injury. Semin Neurol. 2008 Nov;28(5):716-25. doi: 10.1055/s-0028-1105971. Epub 2008 Dec 29.
Fernandez-Ortega JF, Prieto-Palomino MA, Munoz-Lopez A, Lebron-Gallardo M, Cabrera-Ortiz H, Quesada-Garcia G. Prognostic influence and computed tomography findings in dysautonomic crises after traumatic brain injury. J Trauma. 2006 Nov;61(5):1129-33. doi: 10.1097/01.ta.0000197634.83217.80.
Cotton BA, Snodgrass KB, Fleming SB, Carpenter RO, Kemp CD, Arbogast PG, Morris JA Jr. Beta-blocker exposure is associated with improved survival after severe traumatic brain injury. J Trauma. 2007 Jan;62(1):26-33; discussion 33-5. doi: 10.1097/TA.0b013e31802d02d0.
Baguley IJ, Heriseanu RE, Felmingham KL, Cameron ID. Dysautonomia and heart rate variability following severe traumatic brain injury. Brain Inj. 2006 Apr;20(4):437-44. doi: 10.1080/02699050600664715.
Meythaler JM, Stinson AM 3rd. Fever of central origin in traumatic brain injury controlled with propranolol. Arch Phys Med Rehabil. 1994 Jul;75(7):816-8.
Chiolero RL, Breitenstein E, Thorin D, Christin L, de Tribolet N, Freeman J, Jequier E, Schutz Y. Effects of propranolol on resting metabolic rate after severe head injury. Crit Care Med. 1989 Apr;17(4):328-34. doi: 10.1097/00003246-198904000-00006.
Pranzatelli MR, Pavlakis SG, Gould RJ, De Vivo DC. Hypothalamic-midbrain dysregulation syndrome: hypertension, hyperthermia, hyperventilation, and decerebration. J Child Neurol. 1991 Apr;6(2):115-22. doi: 10.1177/088307389100600204.
Silver JK, Lux WE. Early onset dystonia following traumatic brain injury. Arch Phys Med Rehabil. 1994 Aug;75(8):885-8. doi: 10.1016/0003-9993(94)90113-9.
Cuny E, Richer E, Castel JP. Dysautonomia syndrome in the acute recovery phase after traumatic brain injury: relief with intrathecal Baclofen therapy. Brain Inj. 2001 Oct;15(10):917-25. doi: 10.1080/02699050110065277.
Chen JM, Heran BS, Perez MI, Wright JM. Blood pressure lowering efficacy of beta-blockers as second-line therapy for primary hypertension. Cochrane Database Syst Rev. 2010 Jan 20;2010(1):CD007185. doi: 10.1002/14651858.CD007185.pub2.
Harwood TN, Butterworth J, Prielipp RC, Royster RL, Hansen K, Plonk G, Dean R. The safety and effectiveness of esmolol in the perioperative period in patients undergoing abdominal aortic surgery. J Cardiothorac Vasc Anesth. 1999 Oct;13(5):555-61. doi: 10.1016/s1053-0770(99)90007-1.
Related Links
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Main website for Johns Hopkins Hospital
Other Identifiers
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NA_00043058
Identifier Type: -
Identifier Source: org_study_id
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