Dosing of Carcinogenic Complexes After Anesthesia With Intrathecal Hyperbaric Prilocaine.

May 21, 2019 updated by: Centre Hospitalier Universitaire Saint Pierre

Dosing of Carcinogenic Complexes Such as Urinary O-toluidine and Hemoglobin Adducts From O-toluidine in Blood After Intrathecal Administration of 50 mg Hyperbaric Prilocaine

The prilocaine is a very common local anesthetic that has the disadvantage of being metabolized to o-toluidine, a human carcinogen.

Hyperbaric 2% prilocaine (HP), recently developped, is increasingly used for spinal anesthesia in ambulatory surgery. But the formation of carcinogenic metabolites induced by the hyperbaric prilocaine is not yet known. The aim of this study is to investigate whether the intrathecal administration of 50 mg hyperbaric prilocaine induces also the formation of carcinogenic complexes such as urinary o-toluidine and hemoglobin adducts from o-toluidine in blood.

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.

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.
10

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

  • Belgium
      • Braine-l'Alleud, Belgium, 1420
        • Braine-l'Alleud Hospital

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 80 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patient scheduled for an ambulatory surgery

Description

Inclusion Criteria:

  • Age : > 18 years and < 80years
  • American Society of Anesthesiology (ASA) score : I-II
  • Height between 160cm and 180cm

Exclusion Criteria:

  • Cardiac Disease (Aortic stenosis, heart failure...)
  • coagulation disorder (International Normalized Ratio (INR) > 1.3; platelets <80 000/mm³)
  • Allergic to local anesthetics
  • Smoker

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

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
Hemoglobin adducts from o-toluidine in blood
Time Frame: Time 0 (before surgery)
Hemoglobin adducts from o-toluidine in blood is measured before surgery (at admission)
Time 0 (before surgery)
Hemoglobin adducts from o-toluidine in blood
Time Frame: Time 24 hours after intrathecal prilocaine injection
Hemoglobin adducts from o-toluidine in blood is measured at 24 hours after intrathecal prilocaine injection
Time 24 hours after intrathecal prilocaine injection
Urinary o-toluidine
Time Frame: Time 0 (before surgery)
Urinary o-toluidine is measured before surgery (at admission)
Time 0 (before surgery)
Urinary o-toluidine
Time Frame: Time 6 hours after intrathecal prilocaine injection
Urinary o-toluidine is measured at 6 hours after intrathecal prilocaine injection
Time 6 hours after intrathecal prilocaine injection
Urinary o-toluidine
Time Frame: Time 12 hours after intrathecal prilocaine injection
Urinary o-toluidine is measured at 12 hours after intrathecal prilocaine injection
Time 12 hours after intrathecal prilocaine injection
Urinary o-toluidine
Time Frame: Time 24 hours after intrathecal prilocaine injection
Urinary o-toluidine is measured at 24 hours after intrathecal prilocaine injection
Time 24 hours after intrathecal prilocaine injection

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.
Centre Hospitalier Universitaire Saint Pierre

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Ruhr University of Bochum
Hôpital de Braine-l'Alleud

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 Director: Emmanuel Guntz, MD, Université Libre de Bruxelles (ULB), Braine-l'Alleud Hospital
  • Principal Investigator: Panayota Kapessidou, MD,PhD, University Hospital Saint-Pierre (CHU Saint-Pierre), Université Libre de Bruxelles (ULB)

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.

General Publications

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 10, 2019

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.
March 27, 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.
March 27, 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).
July 24, 2018

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 20, 2018

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 22, 2018

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.
May 22, 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.
May 21, 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.
May 1, 2019

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.
  • B076201836443

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

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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