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A Pilot Study of Effect of Dexmedetomidine on Sleep and Inflammation in Critically Ill Patients

This study has been completed.
Information provided by:
University of Arizona Identifier:
First received: November 29, 2006
Last updated: October 26, 2016
Last verified: October 2016
The purpose of this study is to assess the short-term effect of sympatholysis on sleep quality and inflammation in critically ill patients.

Condition Intervention Phase
Sleep Critical Illness Drug: Dexmedetomidine Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Double
Primary Purpose: Treatment
Official Title: A Pilot Study of Effect of Dexmedetomidine on Sleep and Inflammation in Critically Ill Patients

Resource links provided by NLM:

Further study details as provided by University of Arizona:

Primary Outcome Measures:
  • Sleep disruption (Arousals, awakenings and sleep efficiency measured by polysomnography)
  • Circulating levels of Inflammatory cytokines (TNF-alpha, IL-1, IL-6, IL-10)

Enrollment: 17
Study Start Date: July 2006
Study Completion Date: May 2007
Detailed Description:
Over 1 million patients receive mechanical ventilation every year in the United States. In mechanically ventilated patients, despite sedative infusions, sleep is severely disrupted. Sleep disruption, in turn, can lead to activation of sympathetic nervous system and elevated inflammatory cytokines. Both sympathetic hyperactivity and elevated cytokines have been associated with delirium, which, in turn, is associated with increased mortality and higher healthcare costs. Currently, however, there is very little understanding of the inter-relationship between critical illness, sleep, and neuropsychological well-being. The purpose of this study is to collect preliminary data on the short-term effects of sedation with and without sympatholysis on sleep and inflammation in critically ill patients receiving mechanical ventilation. This pilot study will be accomplished by performing sleep studies and circulating cytokine measurements in critically ill patients randomized to receive two different sedation strategies: Dexmedetomidine versus Midazolam and Fentanyl. The ultimate goal of this program of research is to identify sedation practices that are least associated with adverse short- and long-term consequences, and thereby ultimately help improve sleep quality and quality of life in patients surviving critical illness.

Ages Eligible for Study:   21 Years to 85 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Patients requiring mechanical ventilation with a diagnosis of

    • Acute Respiratory Distress Syndrome
    • Cardiogenic Pulmonary Edema
    • Pneumonia
    • Chronic obstructive pulmonary disease

Exclusion Criteria:

  • Patients who are considered too unstable to undergo this investigation by their primary physician
  • Comatose patients, or patients with severe debilitating neurological disease
  • Renal insufficiency (Sr. Creatinine > 2 mg/dL)
  • Heart block (second or third degree heart block) or sinus bradycardia (heart rate < 60 beats per minute)
  • Pregnancy
  Contacts and Locations
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Please refer to this study by its identifier: NCT00405847

United States, Arizona
Southern Arizona VA Healthcare System
Tucson, Arizona, United States, 85723
Sponsors and Collaborators
University of Arizona
Principal Investigator: Sairam Parthasarathy, MD SAVAHCS and University of Arizona
  More Information Identifier: NCT00405847     History of Changes
Other Study ID Numbers: HSC #06-107
Study First Received: November 29, 2006
Last Updated: October 26, 2016

Keywords provided by University of Arizona:
Critical illness

Additional relevant MeSH terms:
Critical Illness
Pathologic Processes
Disease Attributes
Hypnotics and Sedatives
Central Nervous System Depressants
Physiological Effects of Drugs
Analgesics, Non-Narcotic
Sensory System Agents
Peripheral Nervous System Agents
Adrenergic alpha-2 Receptor Agonists
Adrenergic alpha-Agonists
Adrenergic Agonists
Adrenergic Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action processed this record on August 18, 2017