Lidocaine and Food Intake

July 31, 2018 updated by: Maastricht University Medical Center

The Effect of lidocaïne Infusion on ad Libitum Food Intake and Satiety in Healthy Volunteers

World's population over 60 years old is increasing rapidly. It is expected that in 2050 elderly population will be 22% of the total population, representing around 2 billion people. This situation means a rising in the incidence of elderly-related diseases, and thereby the need for long-term care. Reduction in body fat and weight are a common problem among the institutionalized elderly. Some factors that contribute to the anorexia of aging are decreased perception of hunger and increased satiation. This represents an increased risk of developing cachexia even during minor illnesses. The potentially severe consequences of anorexia of aging a greater understanding of the underlying mechanism of these changes is highly important. Intraesophageal and intragastric infusion of 20mg/kg lidocaine results in an increase in food intake in Wistar rats. All infusions were done 30 minutes before the start of the meal intake (meal consisted of mealworms). It may be possible to decrease satiation, increase hunger, and hence food intake in elderly individuals through gastric infusion of the anesthetics lidocaine or benzocaine. In the future this study could potentially contribute to improve food intake in elderly vulnerable of losing body weight. Therefore, the current study aims to investigate the effect of intragastric administration of lidocaine on food intake, satiety/satiation and gastrointestinal complaints.

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

Aim: To determine the effect of intragastric infusion of lidocaine on satiation, gastrointestinal complaints and food intake.

Hypothesis: We hypothesize that intragastric administration of lidocaine will result in a delay of postprandial satiation and hereby will result in an increase in food intake. Furthermore, lidocaine infusion will not result in an increase in any gastrointestinal complaints.

Primary objective: To investigate the effect of intragastric infusion of lidocaine on ad libitum food intake.

Secondary Objective(s):

  1. To investigate the effect of intragastric infusion of lidocaine on satiety/satiation.
  2. To study the effect of intragastric infusion of lidocaine on gastrointestinal complaints.

Design: Double blind randomized placebo-controlled cross-over trial in healthy male volunteers.

Study population: 35 healthy human male volunteers, 18 - 50 years old. Main study parameters/endpoints: Difference in ad libitum meal intake (as measured during ad libitum chili con carne meal).

Nature and extent of the burden and risks associated with participation, benefit and group relatedness: Visual Analogue Scales (VAS) scores for satiety feelings (e.g., satiety, fullness, hunger, prospective feeding, desire to eat, desire to snack) and gastrointestinal symptoms (burning, bloating, belching, cramps, colics, warm sensation, sensation of abdominal fullness, nausea and pain) will be measured using VAS (0 to 100 mm) anchored at the low end with the most negative or lowest intensity feelings (e.g., extremely unpleasant, not at all), and with opposing terms at the high end (e.g., extremely pleasant, very high, extreme). Volunteers will be asked to indicate on a line which place on the scale best reflects their feeling at that moment. The scoring forms will be collected immediately so that they cannot be used as a reference for later scorings.

Catheter placement: the subjects will perceive mild discomfort during the placement of the catheter. Subjects can, at any time, come in contact with the investigator if any problems occur. All participants are healthy volunteers and we don't expect any health benefits or disadvantages.

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.
26

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

  • Netherlands
    • Limburg
      • Maastricht, Limburg, Netherlands, 6229 HX
        • Maastricht University Medical Centre

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 50 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • Based on medical history and previous examination, no gastrointestinal complaints can be defined.
  • Age between 18 and 50 years. Several studies (see introduction) showed a difference in response to a meal between young and elderly people. Inclusion of elderly could interfere with the outcome of this study. Goal of this study is to investigate whether a difference in food intake can be found after intragastric infusion of a local anaesthetic. For this proof of concept study we therefore choose to include healthy male volunteers with a maximum age of 50 years.
  • BMI between 20 and 25 kg/m2
  • Weight stable over at least the last 6 months (≤5% weight change)

Exclusion Criteria:

  • Females, because of their hormonal cycle and the possible influence of these hormones on eating behaviour.
  • History of severe cardiovascular, respiratory, urogenital, gastrointestinal/hepatic, haematological/immunologic, HEENT (head, ears, eyes, nose, throat), dermatological/connective tissue, musculoskeletal, metabolic/nutritional, endocrine, neurological/psychiatric diseases, allergy, major surgery and/or laboratory assessments which might limit participation in or completion of the study protocol. The severity of the disease (major interference with the execution of the experiment or potential influence on the study outcomes) will be decided by the principal investigator.
  • Use of amiodaron, because of the cardiotoxicity (in combination with lidocaine).
  • Use of beta blockers, cimetidine and norepinephrine (synergetic effect on the action of Lidocaine).
  • Other use of medication, which could interfere with the outcome of the study. This will be decided by the principal investigator.
  • Administration of investigational drugs or participation in any scientific intervention study which may interfere with this study (to be decided by the principle investigator), in the 90 days prior to the study
  • Major abdominal surgery interfering with gastrointestinal function (uncomplicated appendectomy, cholecystectomy and hysterectomy allowed, and other surgery upon judgement of the principle investigator)
  • Dieting (medically prescribed, vegetarian, diabetic, macrobiological, biological dynamic)
  • Excessive alcohol consumption (>20 alcoholic consumptions per week)
  • Smoking
  • Self-admitted HIV-positive state
  • Any food allergy
  • Not able to eat a chili con carne meal.

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: Basic Science
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Double

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: Lidocaine
LIdocaine dissolved in water for injections
Drug: Lidocaine
Intragastric infusion of lidocain
Placebo Comparator: Placebo
Water for injections
Drug: Placebos
Intragastric infusion of water for injections
Other Names:
  • water for injections

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
Difference in ad libitum meal intake after intragastric lidocain infusion compared to placebo
Time Frame: Difference between Test day 1 and Test day 2 (minimal wash out of 7 days)
The difference in ad libitum food intake (kcal) after intragastric infusion of lidocaine and placebo and active within a subject.
Difference between Test day 1 and Test day 2 (minimal wash out of 7 days)

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
Difference in visual analogue scores for gastrointestinal complaints after intragastric lidocain infusion compared to placebo.
Time Frame: 15 minutes before the start of the infusion of placebo or lidocaine and after the start of the infusion every 15 minutes, until 90 minutes after start of infusion (8 times total).
During a test day participants fill in 8 visual analogue scores (VAS) for gastrointestinal complaints (different time points). VAS scores will be recorded on a scale (0-100, 100mm) and will be measured.
15 minutes before the start of the infusion of placebo or lidocaine and after the start of the infusion every 15 minutes, until 90 minutes after start of infusion (8 times total).
Difference in visual analogue scores for satiation after intragastric lidocain infusion compared to placebo.
Time Frame: 15 minutes before the start of the infusion of placebo or lidocaine and after the start of the infusion every 15 minutes, until 90 minutes after start of infusion (8 times total).
During a test day participants fill in 8 visual analogue scores (VAS) for satiation (different time points). VAS scores will be recorded on a scale (0-100, 100mm) and will be measured.
15 minutes before the start of the infusion of placebo or lidocaine and after the start of the infusion every 15 minutes, until 90 minutes after start of infusion (8 times total).

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.
Maastricht University Medical Center

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: Ad Masclee, MD, PhD, Maastricht University Medical Center (MUMC+)

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.
July 19, 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.
June 26, 2018

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.
June 26, 2018

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 12, 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.
July 19, 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.
July 24, 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 1, 2018

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.
July 31, 2018

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.
July 1, 2018

More Information

Terms related to this study

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.
  • METC 163054

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

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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