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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT05394597
Other study ID # 4370
Secondary ID
Status Recruiting
Phase N/A
First received
Last updated
Start date June 11, 2021
Est. completion date June 10, 2022

Study information

Verified date May 2022
Source Louisiana State University Health Sciences Center in New Orleans
Contact Kristen Healy, PhD
Phone 225-578-7386
Email khealy@lsu.edu
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

To determine the efficacy and duration of protection of two topically applied insect repellent products at preventing landing by mosquitos. The study will follow the EPA Product Performance Test Guidelines1. It is intended to test the products against natural populations of mosquito species of public health importance within the genera Aedes, Anopheles, and Culex, and to replace data from one site previously tested in Florida with data from a site in Louisiana with adequate landing pressure from target mosquito species of public health relevance.


Description:

A single-site field setting study using healthy volunteers to test two insect repellent product formulations (lotion, and wipe) against mosquitos. Subjects will have repellent applied to one lower limb at a standardised dose rate to account for skin area. They will then expose this area only in a field site where mosquitos are recorded landing at a rate of 5 mosquitos per 5 minute or higher. The exposure period will last five minutes and all mosquitos landing on the exposed skin will be collected using an aspirator. 5 minute exposure periods will be repeated every half hour for 14 hours for the lotion and 13 hours for the wipe, or until median CPT can be established by more than half of subjects reaching treatment failure.


Recruitment information / eligibility

Status Recruiting
Enrollment 20
Est. completion date June 10, 2022
Est. primary completion date June 10, 2022
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years to 55 Years
Eligibility Inclusion Criteria: - Able and willing to give fully informed consent; - Male or female; - Aged 18 to 55 years; - Consider themselves to be in good general health, and specifically: - Not aware of having any cardiovascular or respiratory disorder (whether active or inactive) - No previous anaphylaxis - Not aware of having a compromised immune system - Non-smokers or willing to refrain for 24 hours prior to and during each test; - Willing to undergo a mosquito attraction test (putting an arm into a cage of mosquitos) - Able to speak and understand English - Able to stand outside for periods of at least 5 minutes at a time - Able to understand and comply with the study procedures, including: - Willing to complete mosquito landing/aspirating training - Able to withstand exposing the lower leg to mosquitos for periods of at least 5 minutes at a time - Able to operate an aspirator Exclusion Criteria: - Participated in any other intervention study in the previous 3 months - Participated in a biting insect test as part of the current study in the previous 72 hours - Employees, managers, and spouses of employees of the LSU and of the study Sponsor (LivFul, Inc.) - Students of the Study Director or any other LSU faculty/researchers involved in the study - Individuals suspected or known to be sensitive or allergic to, or phobic of, mosquito bites - Women who are pregnant, nursing or intending to become pregnant during the course of the study - Individuals with localized skin disorders or problems affecting the legs (such as eczema, psoriasis, or atopic dermatitis) or open cuts or scrapes - Individuals with known or suspected allergy or sensitivity to the test product or any of its ingredients, or any insect repellent products - Individuals who are not attractive to mosquitos during mosquito attractiveness test - Individuals who have signs or symptoms related to COVID-19, have tested positive for COVID-19 within the last 15 days, or have had contact (within 6 feet for a total of 15 minutes or more) with someone who has tested positive for COVID-19 in the last 14 days.

Study Design


Related Conditions & MeSH terms


Intervention

Other:
Repellent lotion
lotion of the repellent active ingredient IR3535
Repellent Wipe
wipe of the repellent active ingredient IR3535

Locations

Country Name City State
United States Louisiana State University, Department of Entomology Baton Rouge Louisiana

Sponsors (1)

Lead Sponsor Collaborator
Louisiana State University Health Sciences Center in New Orleans

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Median Complete Protection Time the time for each repellent product tested that shows efficacy against mosquito bites 14 hours
See also
  Status Clinical Trial Phase
Completed NCT00114894 - Prevention of Jellyfish Stings Phase 3