Neem Lotion With Combing for Lice

March 12, 2024 updated by: Ian F Burgess, Medical Entomology Centre

A Randomised, Assessor Blinded "Proof of Concept" (Phase IIa) Clinical Study to Assess the Efficacy and Safety of Nice 'n Clear Head Lice Lotion in the Treatment of Head Lice

This was a Phase IIa randomised, assessor blinded, parallel group study in which half the participants were treated with Nice 'n Clear neem-based conditioning lotion plus combing with a head louse detection and removal comb and the remainder were treated with Nice 'n Clear plus combing with a normal grooming comb

Study Overview

Detailed Description

Neem oil has had a long reputation for killing a wide range of insects, including head lice. Several products are marketed with this oil as a named active ingredient, e.g. Nice 'n Clear neem-based conditioning lotion. This product was developed as an aid to combing out head lice for eliminating infestation but it has been considered possible that the neem oil could act to kill lice and inhibit their eggs from hatching.

This study was designed to compare use of Nice 'n Clear neem-based conditioning lotion when used with two different types of comb. One arm of the study was planned so that participants were combed using a plastic louse detection and removal comb (wet combing with conditioner method), in which it was expected the combing process would play a major role in efficacy. The other arm was planned so that participants were combed using a regular grooming comb, which would normally have little effect for removing head lice from the hair.

Comparison of the efficacy outcome in the two groups would determine whether the Nice 'n Clear neem-based conditioning lotion exhibited any effect to eliminate infestation independent of the combing

Study Type

Interventional

Enrollment (Actual)

47

Phase

  • Phase 2

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

      • Cambridge, United Kingdom, CB25 9AU
        • Medical Entomology 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

Ages Eligible for Study

6 months and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Males and females who are found to have an active head louse infection, i.e. the presence of live lice. Detection combing will be done with a fine-toothed plastic detection comb, until at least one louse is found.
  • People who give written informed consent and/or, if the participant is below 16 years of age, whose guardian gives written informed consent to participate in the study. Assent/verbal assent forms will be required for those between the ages of 4 and 16 years of age. There is no maximum age limit.
  • Participants must be available for the duration of the study i.e. 15 days.

Exclusion Criteria:

  • People who have been treated with other head louse products within the previous 2 weeks (14 days).
  • People who have undergone a course of antibiotic treatment using Cotrimoxazole, Trimethoprim or Septrin within the previous 4 weeks, or who are currently taking such a course.
  • People whose hair has been bleached, colour treated, or semi-permanently waved within the previous 2 weeks, this includes the use of semi-permanent colouring agents. Home use wash in/wash out colouring agents are acceptable.
  • People who have taken part in another clinical study within 4 weeks prior to entry to this one.
  • Females who are pregnant or breast-feeding.
  • Participants who have already taken part in this study.
  • People who have a known allergy to any of the ingredients of Nice 'n Clear Lotion (including allergy to Paraben preservatives)
  • Children under 6 months of age.

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: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Neem-based lotion plus louse comb
Neem-based conditioning lotion plus head louse detection and removal comb
Neem-based conditioning lotion was applied to washed and towel dried hair followed by systematic combing using a head louse detection and removal comb
Other Names:
  • Nice 'n Clear
Experimental: Neem-based lotion plus grooming comb
Neem-based conditioning lotion plus regular grooming comb
Neem-based conditioning lotion was applied to washed and towel dried hair followed by combing through using a regular grooming comb
Other Names:
  • Nice 'n Clear

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants Free From Head Louse Infestation as Assessed by Detection Combing
Time Frame: 15 days
Recruitment at Day 0. Success of treatment = No lice present at Day 14 and no lice present at Day 10
15 days

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Difference in Number of Participants Free From Head Louse Infestation According to Comb Type Used
Time Frame: 15 days
It was expected that the louse comb group would show a high level of success (elimination of infestation). The measure of efficacy of the neem-based lotion was the relative efficacy observed in the grooming comb group compared with the louse comb group
15 days
Number of Participants With Treatment-related Adverse Events as Assessed by CTCAE v4.0
Time Frame: 15 days
Number of participants with application site reactions such as irritation, erythema, or other events related to treatment
15 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Ian F Burgess, Medical Entomology Centre

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.

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

May 1, 2006

Primary Completion (Actual)

August 1, 2006

Study Completion (Actual)

August 1, 2006

Study Registration Dates

First Submitted

November 21, 2016

First Submitted That Met QC Criteria

November 22, 2016

First Posted (Estimated)

November 28, 2016

Study Record Updates

Last Update Posted (Actual)

March 19, 2024

Last Update Submitted That Met QC Criteria

March 12, 2024

Last Verified

March 1, 2024

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

IPD Plan Description

Contact Principal Investigator

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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