Propofol Sedation During Upper Endoscopy With and Without Topical Pharyngeal Anesthesia

December 2, 2014 updated by: Lukas Degen, University Hospital, Basel, Switzerland

Study of Propofol Sedation During Upper Endoscopy With and Without Topical Pharyngeal Anesthesia

It is unclear whether a topical pharyngeal anesthesia adds any benefit to the upper gastrointestinal endoscopy under a propofol sedation. We hypothesize that a topical pharyngeal anesthesia does not ease the upper gastrointestinal endoscopy under propofol sedation. The aim of this study is therefore to quantify the impact of a topical pharyngeal anesthesia to the upper gastrointestinal endoscopy in patients sedated with propofol.

Patients will be randomized to receive a topical pharyngeal spray containing either an anesthetic drug (lidocaine 10%) or a placebo. Thereafter the upper endoscopy will be conducted in its standard manner.

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.

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.
294

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.
  • Phase 4

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
    • BS
      • Basel, BS, Switzerland, 4031
        • University Hospital; Division of Gastroenterology and Hepatology
    • ZH
      • Zollikerberg, ZH, Switzerland, 8125
        • Hospital of Zollikerberg, Internal Medicine

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

14 years to 81 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Scheduled diagnostic upper endoscopy
  • Wish to be sedated
  • ASA class I - III
  • Signed informed consent

Exclusion Criteria:

  • Emergency medical examinations
  • Therapeutic Endoscopy
  • ASA class IV
  • Pregnancy
  • Known allergy to propofol or lidocaine

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: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

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: Anesthesia (=A) with lidocaine 10%
3 min before sedation 4 puffs of terbutaline diluted lidocaine solution (Xylocaine ® 10% spray, Astra Zeneca, London, UK) will be sprayed on the pharynx
Drug: Lidocaine 10%
3 min before the endoscopy under propofol sedation 4 puffs of lidocaine 10% will be sprayed on the pharynx as a pharyngeal anesthesia
Other Names:
  • Xylocaine 10% spray
Placebo Comparator: A with diluted gentian root solution
3 min before sedation 4 puffs of highly diluted gentian solution will be sprayed on the pharynx
Drug: Diluted gentian root solution
As a basis, an infusion of water (45%), ethanol (35%) and gentian root cut will be used. The gentian root infusion is approved as a natural flavor in the food industry.3 min before the endoscopy under propofol sedation 4 puffs of this gentian root infusion will be sprayed on the pharynx as a pharyngeal anesthesia
Other Names:
  • Gentian root extract, CAS no. 72968-42-4

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
Time Frame
Number triggered gag reflex during the intubation of the endoscope
Time Frame: Start of the exam until the successful intubation of the esophagus with the endoscope
Start of the exam until the successful intubation of the esophagus with the endoscope
Number of attempts of intubation with the endoscope through the upper esophageal sphincter
Time Frame: Start of the exam until the successful intubation of the esophagus with the endoscope
Start of the exam until the successful intubation of the esophagus with the endoscope
Extent of salivation during intubation
Time Frame: Start of the exam until the successful intubation of the esophagus with the endoscope
Start of the exam until the successful intubation of the esophagus with the endoscope

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
Time Frame
Amount of propofol used to successfully intubate the esophagus
Time Frame: Start of the exam until the successful intubation of the esophagus with the endoscope
Start of the exam until the successful intubation of the esophagus with the endoscope
Total amount of propofol used during the investigation
Time Frame: From the start until the end of the exam
From the start until the end of the exam
Overall assessment of the procedure by the endoscopist
Time Frame: Immediately after finishing the endoscopy
Immediately after finishing the endoscopy
Assumption of the endoscopist if lidocaine or placebo has been used
Time Frame: Immediately after finishing the endoscopy
Immediately after finishing the endoscopy
Overall assessment of the investigation by the patient
Time Frame: Immediately after recovery of consciousness of the patient
Immediately after recovery of consciousness of the patient
Extent of amnesia in the patient
Time Frame: Immediately after recovery of consciousness of the patient
Immediately after recovery of consciousness of the patient
Experienced problems (aspiration, bronchospasm, desaturation)
Time Frame: From the start until the end of the exam
From the start until the end of the exam
The impact of the individual endoscopists or registered nurses involved in the endoscopy
Time Frame: After finishing the entire study
After finishing the entire study

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.
University Hospital, Basel, Switzerland

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: Ludwig T Heuss, MD, Spital Zollikerberg
  • Principal Investigator: Lukas Degen, Prof, University Hospital, Basel, Switzerland

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

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.
August 1, 2009

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.
May 1, 2010

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.
May 1, 2010

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).
March 2, 2010

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.
March 4, 2010

First Posted (Estimate)

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.
March 5, 2010

Study Record Updates

Last Update Posted (Estimate)

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.
December 3, 2014

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.
December 2, 2014

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.
March 1, 2010

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.
  • EKBB 101/09

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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