Dexmedetomidine-Esketamine Combination for Sedation and Analgesia in ICU Patients

Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorPeking University First Hospital

About this trial

Patients with mechanical ventilation in the intensive care unit (ICU) often develop anxiety and agitation, sleep distuebances, and delirium. Delirium occurrence is associated with worse early and long-term outcomes. Dexmedetomidine and ketamine are recommended for sedation and analgesia in ICU patients, but each may induce side effects. The sedative effects of dexmedetomidine can help mitigate the psychiatric side effects of esketamine. Recent studies showed that dexmedetomidine-esketamine combination improved analgesia and sleep quality without increasing psychiatric side effects. This trial is designed to test the hypothesis that dexmedetomidine-esketamine combination for sedation and analgesia in ICU patients with mechanical ventilation may reduce delirium and improve respiratory recovery.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Aged ≥18 years;

Receiving invasive or non-invasive mechanical ventilation in the ICU, with an expected duration ≥24 hours;

Require sedation as judged by ICU physicians.

Disqualifiers

Pregnant or lactating women;

History of schizophrenia, epilepsy, Parkinson's disease, or myasthenia gravis;

Unable to communicate due to coma, severe dementia, or language barrier prior to invasive/non-invasive mechanical ventilation;

After stroke, hypoxic encephalopathy, traumatic brain injury, or neurosurgery;

Trial design

Design model

Parallel

Treatments tested in this trial

  • Dexmedetomidine-Esketamine Combination

    Drug

    For patients with invasive ventilation, nighttime sedation (20:00-06:00) is provided with an initial infusion rate of \[0.05×kg\] ml/h which is increased by \[0.025×kg\] ml/h every 10 min, until the Richmond Agitation-Sedation Scale (RASS) reaches -2 to -1, maximal infusion rate reaches \[0.175×kg\] ml/h, or adverse reactions occur. Daytime sedation (06:00-20:00) is provided as above when considered necessary by the ICU physicians, with a target RASS score of -2 to +1. For patients with non-invasive ventilation (including high-flow nasal oxygenation) or without assisted ventilation, nighttime sedation (20:00-06:00) is provided with an initial infusion rate of \[0.0125×kg\] ml/h which is increased by \[0.0125×kg\] ml/h every 10 min, until the RASS reaches -1, maximal infusion rate reaches \[0.05×kg\] ml/h, or adverse reactions occur. Daytime sedation (06:00-20:00) is typically not required but is provided when considered necessary by the ICU physicians, with a target RASS score of -1 to +1.

  • Dexmedetomidine

    Drug

    For patients with invasive ventilation, nighttime sedation (20:00-06:00) is provided with an initial infusion rate of \[0.05×kg\] ml/h which is increased by \[0.025×kg\] ml/h every 10 min, until the Richmond Agitation-Sedation Scale (RASS) reaches -2 to -1, maximal infusion rate reaches \[0.175×kg\] ml/h, or adverse reactions occur. Daytime sedation (06:00-20:00) is provided as above when considered necessary by the ICU physicians, with a target RASS score of -2 to +1. For patients with non-invasive ventilation (including high-flow nasal oxygenation) or without assisted ventilation, nighttime sedation (20:00-06:00) is provided with an initial infusion rate of \[0.0125×kg\] ml/h which is increased by \[0.0125×kg\] ml/h every 10 min, until the RASS reaches -1, maximal infusion rate reaches \[0.05×kg\] ml/h, or adverse reactions occur. Daytime sedation (06:00-20:00) is typically not required but is provided when considered necessary by the ICU physicians, with a target RASS score of -1 to +1.

Treatment groups

1,508 Participants
are divided into 2 treatment groups
Group A: Dexmedetomidine-Esketamine CombinationExperimental treatment 1 intervention
Group B: DexmedetomidineActive comparator 1 intervention

Trial outcomes

Primary outcomes

1

Incidence of delirium within 7 days

Delirium is assessed twice daily with the Confusion Assessment Method for the Intensive Care Unit (CAM-ICU) or the 3-Minute Diagnostic Assessment for Delirium using the Confusion Assessment Method (3D-CAM) during the 7-day period after enrollment or until hospital discharge. Positive result of delirium assessments at any timepoint is defined as occurrence of delirium.

Time frame
Up to 7 days after enrollment

Secondary outcomes

1

Days alive without delirium or come during the 7-day period

Delirium is assessed twice daily with the Confusion Assessment Method for the Intensive Care Unit (CAM-ICU) or the 3-Minute Diagnostic Assessment for Delirium using the Confusion Assessment Method (3D-CAM). Coma is defined as Richmond Agitation Sedation Scale (score ranges from -5 \[unarousable\] to +4 \[combative\] and 0 indicates alert and calms) of -4 or -5. Positive results at any timepoint is defined as occurrence of delirium or coma.

Time frame
Up to 7 days after enrollment
2

Ventilator-free days within 30 days

Mechanical ventilation includes both invasive and non-invasive ventilation, but do not include high-flow nasal oxygenation.

Time frame
Up to 30 days after enrollment
3

Length of stay in the ICU

Length of stay in the ICU.

Time frame
Up to 30 days after enrollment
4

30-day all-cause mortality

30-day all-cause mortality.

Time frame
Up to 30 days after enrollment

Other outcomes

1

Proportion of patients without delirium

Delirium is assessed twice daily with the Confusion Assessment Method for the Intensive Care Unit (CAM-ICU) or the 3-Minute Diagnostic Assessment for Delirium using the Confusion Assessment Method (3D-CAM) during the 7-day period after enrollment or until hospital discharge.

Time frame
Up to 7 days after enrollment
2

Proportion of patients without delirium or coma

Delirium is assessed twice daily with the Confusion Assessment Method for the Intensive Care Unit (CAM-ICU) or the 3-Minute Diagnostic Assessment for Delirium using the Confusion Assessment Method (3D-CAM). Coma is defined as Richmond Agitation Sedation Scale (score ranges from -5 \[unarousable\] to +4 \[combative\] and 0 indicates alert and calms) of -4 or -5.

Time frame
Up to 7 days after enrollment
3

Length of stay in hospital after enrollment

Length of stay in hospital after enrollment.

Time frame
Up to 30 days after enrollment
4

Incidence of major complications within 30 days

Major complications are defined as new-onset medical conditions other than delirium that are deemed harmful and require therapeutic intervention, that is grade II or higher on the Clavien-Dindo classification.

Time frame
Up to 30 days after enrollment

Sponsors and contacts

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Peking University First Hospital

Lead sponsor

Peking University International Hospital

Collaborator

Tianjin Medical University General Hospital

Collaborator

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