Fine Tuning of Neuro-muscular Blockade in Robot-assisted Prostatectomy (NMBUro)

November 19, 2020 updated by: Peter Biro

Fine Tuning of Deep Neuro-muscular Blockade in Robot-assisted Urological Surgery: A Prospective Proof of Concept Investigation

Assessing the routinely used protokoll for deep NM Block during robot-assisted prostatectomy in general anesthesia. The protocoll contains the repeated dosing of rocuronium according to the results of relaxometry performed with a TOFcuff relaxometer (RGB Medical, Madrid) during pneumoperitoneum. This is done by keeping the block level between 1 to 6 PTC (post tetanic counts). The scope of the study was to find out, to which percentage this protocoll permits the maintenance of block level inside of the desired range.

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

Robot-assisted urological interventions require sufficiently deep neuromuscular relaxation (NMR) during the phase of pneumoperitoneum. This is achieved by repeated administration of the non-depolarizing neuromuscular relaxant rocuronium, which is used in clinical routine. The level of relaxation is usually measured with the TOF-Watch relaxometer. This device has limitations in its usability and accuracy in this setting because it is unreliable when the monitored arm of the patient is not accessible for the anaesthetist for visual or tactile assessment of finger movements. The novel TOF-Cuff relaxometry equipment is by design intended to provide constant and reliable quantitative and in vivo calibrated relaxometric values independently of the arm position. The combination of frequently adjusted neuromuscular relaxation in a standardised mode in combination with a reliable relaxometry by TOFcuff promises an improved surveillance of neuromuscular relaxation and a higher safety standard. This investigation aims to test and to define the combined use of the best available drug with the best available relaxometer for general anesthesia in robot-assisted urological surgery.

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.
Observational

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.
20

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

  • Switzerland
    • ZH
      • Zurich, ZH, Switzerland, 8091
        • University Hospital Zurich, Institue of Anesthesiology

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 to 90 years (Adult, Older Adult)

Accepts Healthy Volunteers

N/A

Genders Eligible for Study

Male

Sampling Method

Non-Probability Sample

Study Population

Unselected pateints, who fulfil the inclusion criteria as they become available for anesthesia and surgery.

Description

Inclusion Criteria:

  • consenting male adults undergoing elective robot-assisted urological surgery.

Exclusion Criteria:

  • Emergency cases, Patients who don't understand the requirements of the study and don't agree to sign the informed consent. Contraindication to neuromuscular relaxation with rocuronium.

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

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
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.
Observational study group
Consenting adult male patients undergoing elective robot-assisted prostatectomy. No further selection or randomisation. Enrollment as availability for the study.
Procedure: Assessment of NM block
Observation of resulting course of NM block under teratment and monitoring as described.

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
Successful deep NM block
Time Frame: Entire duration of pneumoperitoneum varying between 2 and 5 hours.
Time percentage of optimal NM block during pneumoperitoneum
Entire duration of pneumoperitoneum varying between 2 and 5 hours.

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
Surgeon's satisfaction
Time Frame: Duration of pneumoperitoneum
Overall subjective satisfaction with the patient's relaxation by the surgeon on a verbal rating scale (1 = extremely bad; 10 = excellent)(Staehr-Rye 2014)
Duration of pneumoperitoneum

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.
Peter Biro

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.
  • Study Chair: Donat R Spahn, Prof. Dr., Institute of Anesthesiology, University Hospital Zurich

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.
January 15, 2017

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.
July 15, 2019

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.
December 15, 2019

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).
November 16, 2020

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.
November 19, 2020

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.
November 20, 2020

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.
November 20, 2020

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.
November 19, 2020

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.
November 1, 2020

More Information

Terms related to this study

Keywords

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.
  • BASEC ID 2016-01781

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

No plan to share the obtained data.

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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