Study of a Device to Relieve Mosquito Bite Itching.

January 13, 2009 updated by: Ecobrands, Ltd.

Relief From Itching of Mosquito Bites Clinical Study Protocol.

The purpose of this study is to determine whether over-the-counter (OTC) use of the ZapperClick device employing the piezo-electricity principle is effective in reducing itching associated with mosquito bites.

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

The ZapperClick is a therapeutic device that employs the piezo-electricity principle to soothe itching and ease the swelling from mosquito and horsefly bites as well as jellyfish and nettle stings. It accomplishes this by discharging 13KV at 0.7mA for 10 microseconds over the area of the bite or sting each time it is activated. In this clinical study, only the indication of reducing itching from mosquito bites will be evaluated. The theory behind the device's effectiveness is that multiple high voltage, low current electrical discharges over a bug bite or sting generates warmth over the immediate area of the bite or sting which inhibits the histamine release, thus relieving the symptoms of itching and swelling arising from the bite or sting. The device is a quick, simple and painless means of reducing the annoying symptoms of mosquito bites.

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.
60

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.
  • Not Applicable

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

  • United Kingdom
      • London, United Kingdom, WC 1E 7HT
        • Department of Infectious & Tropical Diseases, London School of Hygiene & Tropical 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 61 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • One lab-induced mosquito bite on the non-dominant forearm
  • Familiarity with an immediate mosquito bite reaction.
  • History of immediately responding to mosquito bites with itching.
  • Willing and able to refrain from consuming anti-histamines, corticosteroids, or Non-Steroid Anti-Inflammatory Drugs (NSAID,) for a time period of 4 half lives of the drug prior to the beginning of the study, and continuing throughout the course of the study.
  • Willing to abstain from the use of insect repellant and/or any treatment other than the test device for the relief of mosquito bite symptoms until after the study.
  • Primary written and spoken language is English.

Exclusion Criteria:

  • No history of prior affliction with mosquito bites.
  • History of lack of reaction to mosquito and/or other insect bites that includes itching.
  • History of hypersensitivity to the bites or stings of mosquitoes, bees or wasps.
  • Presence of mosquito bites or other types of insect bite/stings on any location on the body.
  • Current use of steroids.
  • Use of insect repellants during the week prior to study start.
  • Use of topical agents on the arm during the week prior to study start.
  • Pacemaker, ICD or other implantable heart device.
  • Therapeutic use of any type of electrical stimulation.
  • Epilepsy.
  • Diabetes.
  • Presence of neurological disorder.
  • Prior surgery to the forearm area.
  • Infection or wound in the forearm area.
  • Any skin or other disease or illness that can cause or influence skin itching, such as Psoriasis.
  • Developmental disability or cognitive impairment that impacts the ability to read and/or to understand the content of the informed consent form or the device labeling and/or impacts the ability to read and/or to understand and/or to complete the study case report forms.
  • Significant psychological disorder(s) for which treatment has become necessary, including anxiety and depression; psychiatric hospitalization.
  • Pregnancy or lactation.
  • Involvement in litigation and/or receiving disability benefits related to any kind of disability, injury, or other medical problem.
  • Participation in research over the preceding 90 days.

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: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

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: A
Device: ZapperClick
The ZapperClick is a therapeutic device that employs the piezo-electricity principle to soothe itching and ease the swelling from mosquito and horsefly bites as well as jellyfish and nettle stings. It accomplishes this by discharging 13KV at 0.7mA for 10 microseconds over the area of the bite or sting each time it is activated.
Sham Comparator: B
Device: ZapperClick
The ZapperClick is a therapeutic device that employs the piezo-electricity principle to soothe itching and ease the swelling from mosquito and horsefly bites as well as jellyfish and nettle stings. It accomplishes this by discharging 13KV at 0.7mA for 10 microseconds over the area of the bite or sting each time it is activated.

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
Change in degree of itching rating on a 0-100 VAS.
Time Frame: 10 minutes
10 minutes

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
Changes in 0-100 VAS itching ratings, and changes in total area of mosquito bite erythema, across the 24-hour evaluation period.
Time Frame: 24 hours
24 hours

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.
Ecobrands, Ltd.

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: Nigel Hill, Ph.D., London School of Hygiene and Tropical Medicine

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.
April 1, 2008

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 1, 2008

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 1, 2008

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).
January 13, 2009

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.
January 13, 2009

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.
January 14, 2009

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.
January 14, 2009

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.
January 13, 2009

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.
January 1, 2009

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.
  • ZC-001

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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