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Clinical Trial Summary

The purpose of this study is to investigate the effectiveness of a preventative low-dose of Haloperidol to prevent delirium in patients undergoing a esophagectomy, pneumonectomy or thoracotomy.

Delirium is state of severe confusion and some symptoms include:

- Cannot think clearly

- Have trouble paying attention

- Have a hard time understanding what is going on around them

- May see or hear things that are not there. These things seem very real to them.


Clinical Trial Description

50% of patients who undergo esophageal and/or lung resection suffer from acute brain dysfunction or delirium postoperatively. Delirium is a state of brain failure characterized by disturbance of consciousness with reduced ability to focus, sustain, or shift attention that occurs over a short period of time and tends to fluctuate over the course of the day. Presence of delirium in the post-operative phase is associated with a longer length of both intensive care unit and hospital stay, increased health-care costs, long-term functional and cognitive decline, and an increased risk of in-hospital and post-discharge mortality.

Haloperidol primarily acts by blocking dopamine (D2) receptors. This dopamine blockade in the cerebral cortex improves cognition and reduces delirium. Along with the dopamine blockade, haloperidol has anti-inflammatory properties. It inhibits production of lipopolysaccharide induced pro-inflammatory cytokines, interleukin (IL-1) and tumor necrosis factor alpha (TNF-α). Haloperidol also increases levels of Interleukin -1 receptor antagonist (IL-1RA), an anti-inflammatory cytokine that blocks the action of other pro-inflammatory cytokines. If unchecked, the inflammatory cytokines cause impaired concentration, sleep disturbances, and agitation the cardinal symptoms of delirium; and induce a reduction in cholinergic activity. Given the inhibitory effect of acetylcholine on certain cytokines such as interleukin-6, a repetitive cycle of inadequate regulation of inflammation due to cholinergic depletion ensues. Haloperidol with its anti-inflammatory properties seeks to mitigate this repetitive vicious cycle. ;


Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Prevention


Related Conditions & MeSH terms


NCT number NCT02213900
Study type Interventional
Source Indiana University
Contact
Status Completed
Phase Phase 4
Start date September 2013
Completion date December 2015

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