Responsiveness Index Versus the RASS Based Method for Adjusting Sedation in Critically Ill Patients

August 13, 2019 updated by: Ville Pettilä, Helsinki University Central Hospital
Systematic evaluation of pain, agitation and delirium in ICU-patients is recommended and deep sedation should be avoided. Sedation is still monitored with clinical assessments, like RASS. The Responsiveness Index (RI) is a recently described method for ICU sedation monitoring. It is based on processed frontal EMG and reflects the interaction between a patient's conscious state and the intensity and frequency of stimulations during treatment. RI has not been randomly compared to RASS to titrate sedation to target at a clinically adequate sedation state. In this open randomized controlled pilot study of 32 critically ill, mechanically ventilated adult patients, investigators will evaluate the feasibility, safety and efficacy of RI based sedation compared to standard RASS based titration of sedation. Investigators hypothesize first that RI controlled sedation will be safe and, second that RI controlled sedation will associate with increased number of ventilator free days alive in 30 days without excess adverse events.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Sedation of intensive care patients is needed for patient's safety but deep sedation is associated with adverse outcomes. Frontal electromyogram based Responsiveness Index (RI) aims to quantify patient's arousal. RI monitoring together with staff education may have potential to improve sedation quality. Investigators will evaluate the safety of RI based sedation versus standard care using Richmond Agitation-Sedation Scale (RASS) for sedation.

Methods: randomized study, critically ill adult patients with mechanical ventilation and administration of sedation to either RI- or RASS-guided sedation. Propofol (and midazolam combined with if needed) as a hypnotic drug and oxycodone as an analgesic drug. Investigators will follow standardized sedation protocol in both groups to achieve the predetermined target sedation level: either RI 40-80 (RI-group) or RASS -3-0 (RASS group). RI measurement is continuous in both groups, but blinded in the RASS group. Accordingly, RI group is blinded to RASS assessments. State Entropy (SE) will register in both groups.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
32

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

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

  • Finland
      • Helsinki, Finland
        • HelsinkiUCH

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Intensive care patients
  • Need of mechanical ventilation and sedation

Exclusion Criteria:

  • contraindication to propofol or oxycodone
  • hypoxic or traumatic brain injury
  • intracranial hemorrhage
  • status epilepticus
  • drug overdose as admission diagnosis

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: Single

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: 'Sedation guidance with RASS-group
Sedation is guided with RASS. Targeted sedation level is RASS -3 - 0. Propofol: an initial rate of 2.4 mg/kg/h for one hour. Thereafter, the infusion rate of propofol is 0.8-4 mg/kg/h to reach or maintain the target RASS score. Propofol bolus of 20-40 mg is allowed. Oxycodone as 3-6 mg boluses for pain management. Other opiates are not allowed. Midazolam may given if the maximum dose of propofol is reached and pain management by oxycodone restricted achievement of the target sedation level. Midazolam will supply intravenously in boluses of 1-2 mg (based on the weight of the patient), starting at 3 boluses/h for the first hour. Dexmedetomidine and other sedatives are not allowed.
Drug: Propofol
Sedation targeted to RASS -3-0 or RI 20-40
Other Names:
  • Oxycodone
  • Midazolame
Experimental: 'Sedation guidance with RI
Sedation is guided with RI. Targeted sedation level is RI 40-80. Propofol: an initial rate of 2.4 mg/kg/h for one hour. Thereafter, the infusion rate of propofol is 0.8-4 mg/kg/h to reach or maintain the target RI score. Propofol bolus of 20-40 mg is allowed. Oxycodone as 3-6 mg boluses for pain management. Other opiates are not allowed. Midazolam may given if the maximum dose of propofol is reached and pain management by oxycodone restricted achievement of the target sedation level. Midazolam will supply intravenously in boluses of 1-2 mg (based on the weight of the patient), starting at 3 boluses/h for the first hour. Dexmedetomidine and other sedatives are not allowed.
Drug: Propofol
Sedation targeted to RASS -3-0 or RI 20-40
Other Names:
  • Oxycodone
  • Midazolame

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Number of patients with sedation or sedation monitoring related predetermined adverse events
Time Frame: Up to 96 hours (starting when RI-monitoring begins)
Predetermined adverse events hypotension, hypertension, tachycardia, tachypnea, anxiety, unintended catheter removal, gas exchange deficiency, skin irritation caused by electrodes, hemodynamic instability
Up to 96 hours (starting when RI-monitoring begins)

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Increased ventilator free days
Time Frame: 30 days
Time alive without mechanical ventilation
30 days

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Helsinki University Central Hospital

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Johanna Wennervirta, MD, PhD, University of Helsinki and Helsinki University Hospital, PO Box 340, 00029 Helsinki, Finland

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
March 1, 2013

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
August 28, 2017

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
August 28, 2017

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 8, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 11, 2017

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 15, 2017

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 15, 2019

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 13, 2019

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2019

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • HelsinkiUCHFin

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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