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Randomized Controlled Trial
The protocol of the Oslo Study of Clonidine in Elderly Patients with Delirium; LUCID: a randomised placebo-controlled trial.
- Bjørn Erik Neerland, Karen Roksund Hov, Vegard Bruun Wyller, Eirik Qvigstad, Eva Skovlund, Alasdair M J MacLullich, and Torgeir Bruun Wyller.
- Oslo Delirium Research Group, Department of Geriatric Medicine, University of Oslo, Pb 4956, N-0424, Oslo, Norway. bjorn.erik@neerland.net.
- BMC Geriatr. 2015 Feb 10; 15: 7.
BackgroundDelirium affects 15% of hospitalised patients and is linked with poor outcomes, yet few pharmacological treatment options exist. One hypothesis is that delirium may in part result from exaggerated and/or prolonged stress responses. Dexmedetomidine, a parenterally-administered alpha2-adrenergic receptor agonist which attenuates sympathetic nervous system activity, shows promise as treatment in ICU delirium. Clonidine exhibits similar pharmacodynamic properties and can be administered orally. We therefore wish to explore possible effects of clonidine upon the duration and severity of delirium in general medical inpatients.Methods/DesignThe Oslo Study of Clonidine in Elderly Patients with Delirium (LUCID) is a randomised, placebo-controlled, double-blinded, parallel group study with 4-month prospective follow-up. We will recruit 100 older medical inpatients with delirium or subsyndromal delirium in the acute geriatric ward. Participants will be randomised to oral clonidine or placebo until delirium free for 2 days (Diagnostic and Statistical Manual of Mental Disorders (DSM-5) criteria), or after a maximum of 7 days treatment. Assessment of haemodynamics (blood pressure, heart rate and electrocardiogram) and delirium will be performed daily until discharge or a maximum of 7 days after end of treatment. The primary endpoint is the trajectory of delirium over time (measured by Memorial Delirium Assessment Scale). Secondary endpoints include the duration of delirium, use of rescue medication for delirium, pharmacokinetics and pharmacodynamics of clonidine, cognitive function after 4 months, length of hospital stay and need for institutionalisation.DiscussionLUCID will explore the efficacy and safety of clonidine for delirium in older medical inpatients.Trial RegistrationClinicalTrials.gov NCT01956604. EudraCT Number: 2013-000815-26.
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