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TerminatedNCT02500524Updated Jul 16, 2015

Cocamide DEA vs Permethrin for Head Lice

A Phase 3 interventional study of Cocamide diethanolamine and Permethrin in Pediculosis Capitis and Head Louse Infestation, sponsored by Medical Entomology Centre. Terminated at 1 site in United Kingdom. Open to participants aged 4 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2015-07-16.

Sponsored by Medical Entomology Centre · Phase 3, Interventional, and Treatment

Why this study was terminated
Lack of efficacy
Phase
Phase 3
Study type
Interventional
Enrollment
44
Allocation
Randomized
Ages
4 Years and older
Sex
All
01

Study summary

To assess the efficacy and safety of 10% Cocamide DEA and Lyclear creme rinse (permethrin1%) in the eradication of head lice. To assess the ability of each product to kill all viable ova and to assess patient acceptability of the product in use.

Read the detailed description

A formulation of cocamide diethanolamine (DEA) surfactant was previously reported as showing efficacy to eliminate head louse infestation. This study has been designed to test those data using a new formulation of 10% cocamide DEA in an aqueous basis in comparison with the standard of care product 1% permethrin creme rinse. It is believed that surfactants like cocamide DEA are capable of eliminating lice resistant to conventional insecticides.

A planned total of 120 patients who, following examination, are found to suffer from active head lice infestation will be recruited to the trial. The patient will be treated with the appropriate product according to the randomization code from a pre-prepared listing in balanced blocks of 12.

10% Cocamide DEA is applied directly to dry hair and is washed off with shampoo after 60 minutes. Permethrin 1% creme rinse is applied to shampooed and towel dried hair and left in situ for 10 minutes, then rinsed off with clean water. Treatments will be applied by experienced investigators throughout the study. Assessments will be made by other investigators unaware of the treatment regimen used.

After treatment (day 0), follow up assessments will be performed on days 4, 7,10 then again at day 14 after which they will leave the study. Any adverse events or side effects from the treatments will be monitored during the study.

02

Conditions studied

  • Pediculosis Capitis
  • Head Louse Infestation

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03

In context

Lice Infestations

58 studies on the registry are indexed under Lice Infestations; 4 are open to participants now.

This study's enrollment of 44 is below the median of 118 across 56 interventional studies indexed under Lice Infestations.

Browse Lice Infestations studies →

Lead sponsor

Medical Entomology Centre is the lead sponsor of 3 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
4 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Male and female patients over the age of 4 who are found to have a head lice infection.
  • Patients who give written informed consent or, if the patient is under 16 years of age, whose guardian gives written informed consent to participate in the study.
  • Available for the duration of study i.e. 15 days.

Exclusion criteria

Exclusion Criteria:

  • Patients with a known sensitivity to pyrethroid, organophosphate, and/or carbamate insecticides, sensitivity to chrysanthemums and/or known sensitivity to paraben preservatives.
  • Patients who have been treated with other head lice products within the last 4 weeks.
  • Patients who have undergone a course of antibiotic treatment within the last 4 weeks.
  • Patients who have any persistent skin disorder of the scalp (i.e. eczema, chronic dermatitis, psoriasis).
  • Patients with asthma
  • Patients whose hair has been bleached, colour treated or permed within the last 4 weeks.
  • Pregnant or nursing mothers.
  • Patients who have participated in another clinical trial within 1 month prior to entry to this study.
  • Patients who have already participated in this clinical trial.
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
44 participants (actual)

Study arms

  • Experimental
    10% Cocamide diethanolamine

    10% Cocamide DEA aqueous lotion is applied directly to dry hair on a single occasion and is washed off with shampoo after 60 minutes.

    Drug: Cocamide diethanolamine

  • Active comparator
    1% permethrin creme rinse

    1% permethrin creme rinse is applied to shampooed and towel dried hair on a single occasion and left in situ for 10 minutes, then rinsed off with clean water.

    Drug: Permethrin

Interventions

  • DrugCocamide diethanolamine

    Topical lotion

    Also known as: Lauramine diethanolamine

  • DrugPermethrin

    Topical creme rinse

06

What researchers measure

Primary outcomes

  1. Elimination of infestation

    No evidence of active head lice infestation 14 days after enrolment.

    Time frame: 14 days

Secondary outcomes

  1. The number of participants with treatment related adverse events as a measure of safety

    No treatment related adverse events following treatment

    Time frame: 14 days

07

Study locations

1 site
  • Medical Entomology Centre
    Cambridge, CB25 9AU, United Kingdom
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 16, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02500524
Lead sponsor
Medical Entomology Centre
Collaborators
PN Lee Statistics and Computing Ltd, Riemann a/s
Responsible party
Ian F Burgess (Director, Medical Entomology Centre) — Principal investigator
First posted
Jul 16, 2015
Start date
Jul 1998
Primary completion
Jan 1999
Completion
Jan 1999
Last update
Jul 16, 2015

Study contacts

Ian F Burgess
principal investigator · Medical Entomology Centre

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Jul 2015. You cannot join it, but the record below documents what was studied.

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