Viewing Study NCT00505804


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Study NCT ID: NCT00505804
Status: COMPLETED
Last Update Posted: 2013-01-24
First Post: 2007-07-23
Is NOT Gene Therapy: True
Has Adverse Events: False

Brief Title: A Comparison of Dexmedetomidine and Haloperidol in Patients With Intensive Care Unit (ICU)-Associated Agitation and Delirium
Sponsor: Austin Health
Organization:

Study Overview

Official Title: A Randomised Open Label Pilot Study of the Efficacy of Dexmedetomidine and Haloperidol in Ventilated Patients With ICU-associated Agitation and Delirium
Status: COMPLETED
Status Verified Date: 2013-01
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: Dex
Brief Summary: The purpose of the study is to determine whether dexmedetomidine is a more effective medication than haloperidol in the treatment of agitation and delirium in patients receiving mechanical ventilation in an intensive care unit. Haloperidol is a medication conventionally used for this purpose.

The investigators will study only patients who have recovered from their illness to the point that, were it not for agitation and delirium, they would no longer require mechanical ventilation.

The investigators hypothesize that patients receiving dexmedetomidine will be able to discontinue mechanical ventilation earlier than those receiving haloperidol.
Detailed Description: Up to 80% of patients undergoing intensive care have delirium. Early in the ICU stay, delirium and agitation are usually prevented using analgesic and sedative drugs which essentially render the patient unconscious. This is appropriate in the context of aggressive treatment of pathophysiological instability, which often requires multiple painful procedures. However, after the underlying pathophysiological problem has resolved, patients sometimes remain delirious and agitated. This often requires ongoing heavy sedation, which in turn necessitates continued mechanical ventilation, and can worsen the (temporarily masked) delirium. Prolonged mechanical ventilation increases the risk of ventilator associated pneumonia and other life threatening complications.

The drug most commonly used to treat delirium is haloperidol, which reduces hallucinations and unstructured thought patterns, but also reduces the interaction with the environment. Haloperidol has significant side effects, including extrapyramidal reactions (in 1-10% of patients), neuroleptic malignant syndrome (in which it is the cause in 50% of cases), and prolonged QT syndrome (which can precipitate fatal arrhythmias).

An ideal sedative agent in this context would have fewer side effects, relieve agitation without causing excessive sedation, and be easily titrated. An analgesic action might allow less opioid use, also lessening delirium. Early studies in other contexts suggest dexmedetomidine has all these properties.

The investigators hypothesise that patients with ICU-associated delirium after the resolution of their underlying pathological process who receive dexmedetomidine will be able to be extubated earlier than those who receive haloperidol.

Study Oversight

Has Oversight DMC: False
Is a FDA Regulated Drug?: None
Is a FDA Regulated Device?: None
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: None
Is an FDA AA801 Violation?: