Analgosedative adjuncT keTAmine Infusion iN Mechanically vENTilated ICU Patients (ATTAINMENT)

May 5, 2021 updated by: Mohammed Bawazeer, King Faisal Specialist Hospital & Research Center

Adjunct Low Dose Ketamine Infusion Versus Standard of Care in Mechanically Ventilated Critically Ill Patients at a Tertiary Saudi Hospital: Randomized, Prospective, Pilot Trial

The purpose of this study is to investigate the efficacy and safety of a low dose ketamine infusion used in combination of standard of care in critically ill patients to test whether ketamine can help to shorten the time of being in breathing tube and ventilator compared to the standard of care alone.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Ketamine is used to produce sedation and relieve pain to minimize discomfort while a breathing tube placed in trachea (windpipe) and a machine (ventilator) used in the ICU. Several publications have shown that a low-dose ketamine in combination to opioids has been used to relieve acute pain after surgery. Ketamine has a favorable characteristics including bronchodilation, increase in blood pressure, does not cause constipation , maintain respiratory reflexes (respiratory spontaneous responses) make it an especially viable alternative for patients with unstable respiratory and hemodynamic function. However, the majority of these trials are conducted in a surgical ICU setting, retrospective in nature or randomized controlled clinical trials focusing on comparison of ketamine to placebo or two study drugs (e.g. ketamine versus opioid), despite the fact that most ICU patients are sedated with a combination of drugs. Moreover, the majority of those trials has a limited focus on patient-centered outcomes, as the primary outcome.

The aim of this study is to assess weather ketamine can help to shorten the time of being in breathing tube and ventilator (duration of mechanical ventilation). This is a prospective, randomized, active controlled, open-label pilot study to assess the efficacy and safety of Analgo-sedative adjuncT keTAmine Infusion iN Mechanically vENTilated ICU patients (ATTAINMENT trial). The study hypothesis is that low dose ketamine infusion will reduce the duration of mechanical ventilation with an acceptable safety profile compared to standard of care. The study will include adult ICU patients (> 14 years old) admitted to KFSHRC ICUs within the previous 24 hours, placed on the ventilator, expected to need breathing tube for longer than 24 hours and placed on KFSHRC sedation and pain protocol. Patients will be separated to 2 groups: The intervention group: will receive a low dose ketamine infusion used in combination of standard of care. Ketamine will be given as intravenous infusion at a fixed infusion rate 0.12 mg/kg/hr (2 µg/kg/min) in 1st 24hr followed by 0.06 mg/kg/hr (1 µg/kg/min) in 2nd 24hr. The control group which will receive standard of care in the ICU including propofol and / or fentanyl and/or midazolam according to KFSHRC ICU sedation and analgesia protocol as chosen by the treating clinician.The randomization process is computer-generated using block randomization with a size of 8 patients in each block.

The number of the subjects to be enrolled in this study is 80 and duration of the subject's participation is 48hrs. Patients will be assessed for duration of mechanical ventilation as a primary outcome.

Study medication (i.e. ketamine) will be administered until one the following occurs:

  1. Patient has received ketamine for 48 hours (intended duration if the study), or
  2. If ICU team deemed excessive sedation persisted after holding or decreasing the sedating medication and patient not on target sedation score called RASS,
  3. Patient died or goal of care changed to comfort care
  4. Patient extubated and sedation weaned off ,
  5. an adverse event potentially attributable to the study drug is experienced by a patient that is deemed, in the opinion of the investigative team to warrant discontinuation of therapy such as fast heart beat persist >150 beat per min for more than 3 hours, high systolic blood pressure persist > 180 for more than 3 hours, severe agitation and pulling off breathing tube or lines, and aggressive behavior to the nursing staff.

Study Type

Interventional

Enrollment (Actual)

84

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Riyadh, Saudi Arabia, 11211
        • King Faisal Specialist Hospital and Research Centre

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

14 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Adult ICU (Medical or surgical) patients (> 14 years old)
  2. Mechanically ventilated within the previous 24 hours and expected to remain intubated for more than 24 hours.
  3. The patient requires ongoing sedative medication
  4. No objection from the ICU attending MD for enrollment

Exclusion Criteria:

  1. Patients with a history of dementia or psychiatric disorders or on any anti-psychotics or anti-depressants medications at home
  2. Pregnancy
  3. Age < 14 years old
  4. Expected to need mechanical ventilation less than 24 hours
  5. Known hypersensitivity to ketamine
  6. Patient on dexmedetomidine as primary sedative agent prior to randomization
  7. Patients with cardiogenic shock, heart failure, myocardial infarction
  8. History of end-stage liver disease.
  9. Proven or suspected primary neurological injury (traumatic brain injury, ischemic stroke, intracranial hemorrhage, spinal cord injury, anoxic brain injury)
  10. Patients with persistent heart rate (HR) > 150 bpm or systolic blood pressure (SBP) >180 mmHg
  11. Patients who assigned as do-not-resuscitate order (DNR) or expected to die within 24 hours
  12. Patients on ECMO
  13. Patients with status epilepticus patients who are receiving the ketamine infusion for refractory status epilepticus
  14. Proven or suspected status asthmaticus
  15. Patients with expected targeted RASS of -5 such as patients on continuous infusion neuromuscular blockade

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Ketamine Group
adjunct low dose continuous infusion ketamine in addition to the standard of care. Ketamine will be given at a fixed infusion rate of 0.12 mg/kg/hr (2 µg/kg/min) in the first 24 hours followed by 0.06 mg/kg/hr (1 µg/kg/min) in the second 24 hours, then discontinued
standard of care plus Ketamine infusion at a fixed rate of 0.12 mg/kg/hr (2 µg/kg/min) in the first 24 hours followed by 0.06 mg/kg/hr (1 µg/kg/min) in the second 24 hours, then discontinued
No Intervention: Control Group
Standard of care in the ICU including propofol and / or fentanyl and/or midazolam according to KFSHRC sedation and analgesia protocol.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Duration of Mechanical Ventilation
Time Frame: From Intubation to extubation date and off Mechanical Ventilation or until ICU discharge, death, or 28 days post randomization whichever occurs first.
To assess whether ketamine can help to shorten the time of being in breathing tube and ventilator (duration of mechanical ventilation )
From Intubation to extubation date and off Mechanical Ventilation or until ICU discharge, death, or 28 days post randomization whichever occurs first.

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Cumulative Sedation Dosages
Time Frame: First 48 hours after randomization
To compare the cumulative dose of pain and sedative medications.
First 48 hours after randomization
Dexmedetomidine use
Time Frame: First 48 hours after randomization
To compare the number of patients started on dexmedetomidine.
First 48 hours after randomization
Richmond Agitation Sedation Score (RASS)
Time Frame: First 48 hours after randomization
To compare The number of patients are in RASS score goal.
First 48 hours after randomization
Pain score
Time Frame: First 48 hours after randomization

To compare The number of patients are in pain score goal. We will use the KFSHRC pain scale being used in our ICU.

For Adult communicative patients, we will use a scale from 0-10. The "0" indicates "No pain" and "10" indicates "severe pain". Values between 1-3 indicate mild pain, values between 4-6 indicate moderate pain while values between 7-10 indicate severe pain.

For non-communicative patients, A scale is composed of five categories: Physiology, Facial expressions, Activity (movement), Guarding And Respiratory, will be used. Each Category has a scale 0-2, then the total score is calculated and should be between 0-10. Values between 0-2 indicate no pain, values 3-6 indicate moderate pain while values between 7-10 indicate severe pain.

First 48 hours after randomization
Vasopressor Medication Dosages
Time Frame: First 48 hours after randomization.
To compare vasopressor requirement.
First 48 hours after randomization.
Hemodynamics
Time Frame: First 48 hours after randomization
Changes in Mean Arterial Blood Pressure (MAP) and Heart Rate (HR)
First 48 hours after randomization
Frequency of endotracheal tube Suctioning
Time Frame: First 48 hours after randomization
Proportion of patient with changes in requirements of suctioning frequency to 2 hours of less
First 48 hours after randomization
Hospital Length of Stay (LOS)
Time Frame: Throughout study completion (1 year)
To compare hospital LOS
Throughout study completion (1 year)
ICU Length of stay (LOS)
Time Frame: Throughout study completion (1 year)
To compare ICU LOS
Throughout study completion (1 year)
Tracheostomy
Time Frame: 28 days after randomization
Tracheostomy rate
28 days after randomization
Unplanned extubation
Time Frame: 28 days after randomization
Rate of unplanned extubation
28 days after randomization
Re-intubation rate
Time Frame: 28 days after randomization
Rate of unplanned and unexpected re-intubation
28 days after randomization

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Incidence of Delirium
Time Frame: 48 hours after randomization
Rate of positive Confusion Assessment Method in Intensive Care Unit (CAM-ICU)
48 hours after randomization
The use of anti-psychotics
Time Frame: 48 hours after randomization
Rate of using anti-psychotics for confirmed ICU-acquired delirium
48 hours after randomization
Use of Physical restraints
Time Frame: 48 hours after randomization
Use of physical restraints
48 hours after randomization
Mortality
Time Frame: 28 days after randomization
Death that occurs during 28 days
28 days after randomization

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

August 28, 2019

Primary Completion (Actual)

May 6, 2021

Study Completion (Actual)

May 6, 2021

Study Registration Dates

First Submitted

August 28, 2019

First Submitted That Met QC Criteria

August 29, 2019

First Posted (Actual)

August 30, 2019

Study Record Updates

Last Update Posted (Actual)

May 7, 2021

Last Update Submitted That Met QC Criteria

May 5, 2021

Last Verified

May 1, 2021

More Information

Terms related to this study

Other Study ID Numbers

  • 2191187
  • SCTR #19063002 (Other Identifier: Saudi Food and Drug Authority)
  • ISRCTN14730035 (Registry Identifier: Current Controlled Trials)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

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