Low-Dose Dexmedetomidine for Delirium Prevention in Mechanically Ventilated Septic Patients
NCT ID: NCT04876937
Last Updated: 2025-08-05
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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TERMINATED
NA
42 participants
INTERVENTIONAL
2021-05-28
2024-03-02
Brief Summary
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Detailed Description
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Dexmedetomidine is a highly selective α2 adrenoreceptor agonist with anxiolytic, sedative, analgesic, and anti-inflammatory effects. Studies showed that use of dexmedetomidine is associated with less delirium in ICU patients. Potential mechanisms may include better sleep quality, less consumption of opioids and benzodiazepines, and suppressed inflammatory response.
The incidence of sepsis in ICU patients is as high as 47.2%; 93% of septic patients relying on mechanical ventilation. Delirium is common in septic patients; the reported incidences varies from 20% to 50%. The incidence of delirium in critically ill patients with mechanical ventilation is up to 60-84%. However, the majority of mechanically ventilated ICU patients are sedated with propofol; only 10% of them are given dexmedetomidine. A main reason is that dexmedetomidine infusion is associated with dose-related bradycardia and hypotension.
In a previous study, might-time low-dose dexmedetomidine infusion (0.1 μg/kg/h) improved subjective sleep quality and reduced delirium in elderly patients admitted to ICU after surgery. In another study of ICU patients receiving mechanical ventilation, low-dose dexmedetomidine infusion (0-0.5 μg/kg/h) based on protocol sedation also reduced delirium and shortened mechanical ventilation without increasing adverse events. We hypothesized that, in ICU septic patients with mechanical ventilation, low-dose dexmedetomidine infusion (0.1-0.2 μg/kg/h) might also reduce delirium.
The purpose of this study is to investigate the effect of low-dose dexmedetomidine infusion on incidence of delirium in ICU septic patients with mechanical ventilation.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
PREVENTION
QUADRUPLE
Study Groups
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Dexmedetomidine group
Dexmedetomidine is infused at a rate of 0.1-0.2 ug/kg/h during mechanical ventilation, for a maximum of 7 days.
Dexmedetomidine
Dexmedetomidine is infused at a rate of 0.1-0.2 μg/kg/h (0.025-0.05 ml/kg/h) from study recruitment in the ICU during mechanical ventilation, for no more than 7 days.
Placebo group
Placebo (normal saline) is infused at a same rate as in the dexmedetomidine group during mechanical ventilation, for a maximum of 7 days.
Placebo (normal saline)
Placebo (normal saline) is infused at a rate of 0.025-0.05 ml/kg/h from study recruitment in the ICU during mechanical ventilation, for no more than 7 days.
Interventions
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Dexmedetomidine
Dexmedetomidine is infused at a rate of 0.1-0.2 μg/kg/h (0.025-0.05 ml/kg/h) from study recruitment in the ICU during mechanical ventilation, for no more than 7 days.
Placebo (normal saline)
Placebo (normal saline) is infused at a rate of 0.025-0.05 ml/kg/h from study recruitment in the ICU during mechanical ventilation, for no more than 7 days.
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
2. Admitted to the ICU;
3. With expected mechanical ventilation duration ≥12 hours;
4. Meet the diagnostic criteria of sepsis (sepsis 3.0; patient with infection and a sequential organ failure assessment score ≥2).
Exclusion Criteria
2. Pregnancy;
3. History of schizophrenia, epilepsy, parkinsonism, or myasthenia gravis;
4. Inability to communicate (coma, profound dementia, or language barrier);
5. Brain injury or neurosurgery;
6. Left ventricular ejection fraction (LVEF) less than 30%, sick sinus syndrome, severe sinus bradycardia (\<50 beats per min \[bpm\]), or second degree or greater atrioventricular block without pacemaker;
7. Serious hepatic dysfunction (Child-Pugh class C);
8. Serious renal dysfunction (undergoing dialysis);
9. With expected survival for no more than 24 hours;
10. Allergic to dexmedetomidine;
11. Other conditions that were considered unsuitable for study participation.
18 Years
ALL
No
Sponsors
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China-Japan Friendship Hospital
OTHER
Beijing Hospital
OTHER_GOV
Beijing Friendship Hospital
OTHER
Beijing Shijitan Hospital, Capital Medical University
OTHER
Beijing Tongren Hospital
OTHER
Peking University First Hospital
OTHER
Responsible Party
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Dong-Xin Wang
Professor and Chairman, Department of Anesthesiology and Critical Care Medicine
Principal Investigators
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Dong-Xin Wang, MD,PhD
Role: PRINCIPAL_INVESTIGATOR
Peking University First Hospital
Locations
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Peking University First Hospital
Beijing, Beijing Municipality, China
Countries
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References
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Guenther U, Radtke FM. Delirium in the postanaesthesia period. Curr Opin Anaesthesiol. 2011 Dec;24(6):670-5. doi: 10.1097/ACO.0b013e32834c7b44.
Roberts B, Rickard CM, Rajbhandari D, Turner G, Clarke J, Hill D, Tauschke C, Chaboyer W, Parsons R. Multicentre study of delirium in ICU patients using a simple screening tool. Aust Crit Care. 2005 Feb;18(1):6, 8-9, 11-4 passim. doi: 10.1016/s1036-7314(05)80019-0.
Ely EW, Gautam S, Margolin R, Francis J, May L, Speroff T, Truman B, Dittus R, Bernard R, Inouye SK. The impact of delirium in the intensive care unit on hospital length of stay. Intensive Care Med. 2001 Dec;27(12):1892-900. doi: 10.1007/s00134-001-1132-2. Epub 2001 Nov 8.
Balas MC, Happ MB, Yang W, Chelluri L, Richmond T. Outcomes Associated With Delirium in Older Patients in Surgical ICUs. Chest. 2009 Jan;135(1):18-25. doi: 10.1378/chest.08-1456. Epub 2008 Nov 18.
Ansaloni L, Catena F, Chattat R, Fortuna D, Franceschi C, Mascitti P, Melotti RM. Risk factors and incidence of postoperative delirium in elderly patients after elective and emergency surgery. Br J Surg. 2010 Feb;97(2):273-80. doi: 10.1002/bjs.6843.
Ely EW, Shintani A, Truman B, Speroff T, Gordon SM, Harrell FE Jr, Inouye SK, Bernard GR, Dittus RS. Delirium as a predictor of mortality in mechanically ventilated patients in the intensive care unit. JAMA. 2004 Apr 14;291(14):1753-62. doi: 10.1001/jama.291.14.1753.
Franco K, Litaker D, Locala J, Bronson D. The cost of delirium in the surgical patient. Psychosomatics. 2001 Jan-Feb;42(1):68-73. doi: 10.1176/appi.psy.42.1.68.
Abelha FJ, Luis C, Veiga D, Parente D, Fernandes V, Santos P, Botelho M, Santos A, Santos C. Outcome and quality of life in patients with postoperative delirium during an ICU stay following major surgery. Crit Care. 2013 Oct 29;17(5):R257. doi: 10.1186/cc13084.
Van Rompaey B, Schuurmans MJ, Shortridge-Baggett LM, Truijen S, Elseviers M, Bossaert L. Long term outcome after delirium in the intensive care unit. J Clin Nurs. 2009 Dec;18(23):3349-57. doi: 10.1111/j.1365-2702.2009.02933.x. Epub 2009 Sep 4.
Bickel H, Gradinger R, Kochs E, Forstl H. High risk of cognitive and functional decline after postoperative delirium. A three-year prospective study. Dement Geriatr Cogn Disord. 2008;26(1):26-31. doi: 10.1159/000140804. Epub 2008 Jun 24.
Pisani MA, Kong SY, Kasl SV, Murphy TE, Araujo KL, Van Ness PH. Days of delirium are associated with 1-year mortality in an older intensive care unit population. Am J Respir Crit Care Med. 2009 Dec 1;180(11):1092-7. doi: 10.1164/rccm.200904-0537OC. Epub 2009 Sep 10.
Kawazoe Y, Miyamoto K, Morimoto T, Yamamoto T, Fuke A, Hashimoto A, Koami H, Beppu S, Katayama Y, Itoh M, Ohta Y, Yamamura H; Dexmedetomidine for Sepsis in Intensive Care Unit Randomized Evaluation (DESIRE) Trial Investigators. Effect of Dexmedetomidine on Mortality and Ventilator-Free Days in Patients Requiring Mechanical Ventilation With Sepsis: A Randomized Clinical Trial. JAMA. 2017 Apr 4;317(13):1321-1328. doi: 10.1001/jama.2017.2088.
Wunsch H, Kahn JM, Kramer AA, Wagener G, Li G, Sladen RN, Rubenfeld GD. Dexmedetomidine in the care of critically ill patients from 2001 to 2007: an observational cohort study. Anesthesiology. 2010 Aug;113(2):386-94. doi: 10.1097/ALN.0b013e3181e74116.
van Vught LA, Klein Klouwenberg PM, Spitoni C, Scicluna BP, Wiewel MA, Horn J, Schultz MJ, Nurnberg P, Bonten MJ, Cremer OL, van der Poll T; MARS Consortium. Incidence, Risk Factors, and Attributable Mortality of Secondary Infections in the Intensive Care Unit After Admission for Sepsis. JAMA. 2016 Apr 12;315(14):1469-79. doi: 10.1001/jama.2016.2691.
Nelson LE, Lu J, Guo T, Saper CB, Franks NP, Maze M. The alpha2-adrenoceptor agonist dexmedetomidine converges on an endogenous sleep-promoting pathway to exert its sedative effects. Anesthesiology. 2003 Feb;98(2):428-36. doi: 10.1097/00000542-200302000-00024.
Djaiani G, Silverton N, Fedorko L, Carroll J, Styra R, Rao V, Katznelson R. Dexmedetomidine versus Propofol Sedation Reduces Delirium after Cardiac Surgery: A Randomized Controlled Trial. Anesthesiology. 2016 Feb;124(2):362-8. doi: 10.1097/ALN.0000000000000951.
Su X, Meng ZT, Wu XH, Cui F, Li HL, Wang DX, Zhu X, Zhu SN, Maze M, Ma D. Dexmedetomidine for prevention of delirium in elderly patients after non-cardiac surgery: a randomised, double-blind, placebo-controlled trial. Lancet. 2016 Oct 15;388(10054):1893-1902. doi: 10.1016/S0140-6736(16)30580-3. Epub 2016 Aug 16.
Reade MC, Eastwood GM, Bellomo R, Bailey M, Bersten A, Cheung B, Davies A, Delaney A, Ghosh A, van Haren F, Harley N, Knight D, McGuiness S, Mulder J, O'Donoghue S, Simpson N, Young P; DahLIA Investigators; Australian and New Zealand Intensive Care Society Clinical Trials Group. Effect of Dexmedetomidine Added to Standard Care on Ventilator-Free Time in Patients With Agitated Delirium: A Randomized Clinical Trial. JAMA. 2016 Apr 12;315(14):1460-8. doi: 10.1001/jama.2016.2707.
Geloen A, Chapelier K, Cividjian A, Dantony E, Rabilloud M, May CN, Quintin L. Clonidine and dexmedetomidine increase the pressor response to norepinephrine in experimental sepsis: a pilot study. Crit Care Med. 2013 Dec;41(12):e431-8. doi: 10.1097/CCM.0b013e3182986248.
Brummel NE, Jackson JC, Pandharipande PP, Thompson JL, Shintani AK, Dittus RS, Gill TM, Bernard GR, Ely EW, Girard TD. Delirium in the ICU and subsequent long-term disability among survivors of mechanical ventilation. Crit Care Med. 2014 Feb;42(2):369-77. doi: 10.1097/CCM.0b013e3182a645bd.
Other Identifiers
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2020-241
Identifier Type: -
Identifier Source: org_study_id
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