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Pain, PostoperativeMOGADA-IINCT03380949

Monitor-Guided Analgesia During General Anesthesia - Part II

A study testing Opioid administration (remifentanil) in intervention group in people with Pain, Postoperative and Pain, run by Universitätsklinikum Hamburg-Eppendorf at 1 site in Germany.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This prospective randomized clinical trial evaluates the effects of a monitor-guided opioid analgesia during general anesthesia. To date no standard-monitoring device exists to specifically reflect the analgesic component of general anesthesia. Read more about this study

Who is it for?
Ages 18 years and older, men only
Conditions the study is for
Pain, Postoperative, Pain, Nociceptive Pain
What is being tested?
Opioid administration (remifentanil) in intervention group
Could I receive a placebo?
No, everyone receives an active treatment
How many people
96 participants
Where
1 siteGermany
Study dates
8 Dec 2017to 7 Jun 2018
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Radical open abdominal prostatectomy scheduled in the operation theater where the study is conducted
  • > 18 years

Who cannot join

  • Chronic opioid therapy
  • Beta blocker and digitalis therapy
  • Eye disease with affection of pupil reactivity
  • Pacemaker therapy
  • Higher degrees of cardiac arrhythmias, e.g. atrial fibrillation
  • Pre-operative medication with steroids

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • Department of Anesthesiology; Center of Anesthesiology and Intensive Care Medicine, Hamburg Eppendorf University Medical Center

    Hamburg, 20246

Other trials in Germany

About this study

Official title: Investigation of the Effect of Opioid Titration Guided by Analgesia Indices During Total Intravenous Anesthesia

This prospective randomized clinical trial evaluates the effects of a monitor-guided opioid analgesia during general anesthesia. To date no standard-monitoring device exists to specifically reflect the analgesic component of general anesthesia. Quality and safety of general anesthesia are of major clinical importance and should be improved by limiting the opioid analgesic's dosage to the minimum amount needed. The study compares the effects of monitoring nociception during general anesthesia with different innovative techniques in comparison to routine clinical practice.

Read the detailed description

This prospective randomized clinical study aims to investigate the effects of a monitor-guided opioid analgesia during general anesthesia by different monitoring systems in comparison to routine clinical practice. Many surgical procedures require general anesthesia. The main components of general anesthesia are hypnosis and analgesia, and anesthesiologists usually combine a hypnotic drug with an opioid analgesic.

Until today, however, there is no standard-monitoring of nociception to specifically reflect the analgesic component of general anesthesia. In clinical practice the opioid dosage is chosen by clinical judgment of the attending anesthesiologist based upon changes of heart rate, blood pressure, pupil size, lacrimation and sweating of the patient.

On the one hand, underdosage of opioids can cause nociception leading to an increased sympathetic tone, increase of plasma levels of stress hormones, nociceptive movements as well as increase postoperative pain. On the other hand, overdosage of opioids can lead to drug side effects such as nausea and vomiting, hemodynamic instability, an increase in recovery times, immunosuppression and an increase in postoperative pain by opioid-induced-hyperalgesia. Quality and safety of general anesthesia are of major clinical importance and can be improved by limiting the administration of opioid analgesics to the optimal individual dose needed. In the last years, different analgesia monitoring devices have been developed for monitoring nociception. The present study evaluates the effects of the administration of opioids during general anesthesia guided by three different monitoring systems in comparison to routine clinical practice. All patients will receive general anesthesia with propofol guided by bispectral index (BIS) with a target of BIS values between 40 and 60. Opioid administration will be guided by one of three analgesic monitoring devices or the interpretation of clinical signs by the attending anesthesiologist in the control group. After institutional approval by the Ethics committee of the Medical Board of the City of Hamburg, Germany and obtaining patients' written informed consent we randomize elective patients with major abdominal surgery for open radical prostatectomy into one of four treatment groups.

Being tested
Opioid administration (remifentanil) in intervention group, Opioid administration (remifentanil) in control group
Keywords
Analgesia, Monitoring, Opioid, Sufentanil, Sevoflurane
Medical subject headings
Pain, Postoperative, Pain, Nociceptive Pain, Agnosia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Opioid administration (remifentanil) in intervention groupProcedure or surgery

    Elective surgery in radical open abdominal prostatectomy. Opioid titration (remifentanil) is guided by analgesia indices during general anesthesia in the experimental arms.

  • Opioid administration (remifentanil) in control groupProcedure or surgery

    Elective surgery in radical open abdominal prostatectomy. Opioid titration (remifentanil) is guided by clinical signs in the control group.

Study groups in NCT03380949
Study groupRoleWhat they receive
PPI (Pain Pupillary Index)ExperimentalOpioid administration (remifentanil) in intervention group is guided by PPI derived from video-pupillometry performed with the AlgiScan™ by IDMed, Marseille, France. The device measures the degree of pupillary reflex dilation (PRD) following a nociceptive stimulation. It automatically increases the intensity of the electric stimulation from 10 to 60 mA and displays the PPI as numerical index between 0 and 10. A low PPI score indicates deep, a high score light analgesia. A PPI score of 2-3 is supposed to represent an optimal level of analgesia. A remifentanil bolus of 30 µg will be administered and the infusion rate of remifentanil will be increased by 0.03 µg/kg/min if PPI score is calculated more than 3. Remifentanil infusion will be decreased by 0.03 µg/kg/min if PPI score is <1.
Receives: Procedure: Opioid administration (remifentanil) in intervention group
SPI (Surgical Pleth Index)ExperimentalOpioid administration (remifentanil) in intervention group is guided by SPI derived from photoplethysmography performed by the device CARESCAPE™ B650 Patient Monitor by GE Healthcare, Helsinki, Finland. Included in the monitoring system is a software that continuously calculates the SPI from normalized heart rate and pulse wave amplitude derived from finger plethysmography. The numerical index ranges between 0 (low sympathetic tone) and 100 (high sympathetic tone). A SPI score between 20 and 50 has been proposed as the target range. A remifentanil bolus of 30 µg will be administered and the infusion rate of remifentanil will be increased by 0.03 µg/kg/min if SPI score is calculated more than 50. Remifentanil infusion will be decreased by 0.03 µg/kg/min if PPI score is calculated below 20.
Receives: Procedure: Opioid administration (remifentanil) in intervention group
NOL (Nociception Level)ExperimentalOpioid administration (remifentanil) in intervention group is guided by NOL derived from finger photoplethysmography performed with the device PMD200™ manufactured by Medasense, Ramat Gan, Israel. The device continuously calculates the NOL with a multi-parametric approach from pulse rate, pulse rate variability, pulse wave amplitude, skin conductance level and fluctuations, skin temperature and finger motion. It is presented on a scale from 0 (no pain) to 100 (extreme pain). A NOL score between 10 and 25 has been proposed as the target range. A remifentanil bolus of 30 µg will be administered and the infusion rate will be increased by 0.03 µg/kg/min if NOL score is calculated more than 25. Remifentanil infusion will be decreased by 0.03 µg/kg/min if PPI score is calculated below 10.
Receives: Procedure: Opioid administration (remifentanil) in intervention group
ControlActive comparatorOpioid administration (remifentanil) in control group is guided according to standard clinical practice of the attending anesthesiologist based upon changes of heart rate, blood pressure, lacrimation and sweating of the patient.
Receives: Procedure: Opioid administration (remifentanil) in control group

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Intraoperative opioid consumption

    Compares the amount of intraoperative opioid administration (remifentanil) per minute of general anesthesia and per kg bodyweight between groups.

    Measured: 1 day

Secondary outcomes (6)
  1. Time to extubation

    Postoperative recovery time: Time interval between end of operation and tracheal extubation of the patient.

    Measured: 1 day

  2. Time to Fit-for-discharge

    Postoperative recovery time: Time interval between postoperative tracheal extubation and the patient reaching fit-for-discharge criteria.

    criteria from the PACU to the ward.

    Measured: 1 day

  3. Postoperative pain level

    Postoperative pain level measured with the highest score in numeric pain rating scale (NRS).

    Measured: 1 day

  4. Postoperative opioid administration

    Amount of postoperative opioid administration (piritramid) in the postanesthesia care unit (PACU). Piritramid is given if NRS score is > 3.

    Measured: 1 day

  5. Patient satisfaction

    Patient satisfaction with the general anesthesia and pain management evaluated by a numeric rating scale.

    Measured: 2-21 days

  6. Release of stress hormones

    Amount of perioperative plasma level of cortisol and ACTH.

    Measured: 1 day

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Dec 2017
  2. Study start8 Dec 2017
  3. Primary completion18 Apr 2018
  4. Study completion7 Jun 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Participants are assigned to intervention groups by chance
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
96 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03380949
Sponsor's protocol ID
20171120
Acronym
MOGADA-II
Status last verified
Apr 2019
First submitted
29 Nov 2017
Last updated
30 Apr 2019
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: All data will be anonymized before publication.

Publications

  • Funcke S, Pinnschmidt HO, Brinkmann C, Wesseler S, Beyer B, Fischer M, Nitzschke R. Nociception level-guided opioid administration in radical retropubic prostatectomy: a randomised controlled trial. Br J Anaesth. 2021 Feb;126(2):516-524. doi: 10.1016/j.bja.2020.09.051. Epub 2020 Nov 20.

    PubMed 33228979

Questions about this trial

What is this clinical trial studying?

A study testing Opioid administration (remifentanil) in intervention group in people with Pain, Postoperative and Pain, run by Universitätsklinikum Hamburg-Eppendorf at 1 site in Germany.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 30 Apr 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Germany. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Intraoperative opioid consumption (time frame: 1 day). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03380949, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 30 Apr 2019.

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