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RecruitingNCT06057506Updated Sep 28, 2023

Comparative Study for the Evaluation of Two Medical Devices on the Treatment of Head Lice Infestation

An interventional study of Paranix® Shampoo and Paranix® Lotion in Head Lice Infestation, sponsored by Perrigo CSCI. Recruiting at 1 site in Mauritius. Open to participants aged 2 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-09-28.

Sponsored by Perrigo CSCI · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Nov 2023, 3 years ago, but the record still lists the study as recruiting.
  • Started Aug 2023; still recruiting 3 years 2 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
136
Allocation
Randomized
Ages
2 Years and older
Sex
All
01

Study summary

Pediculosis capitis or head lice infestation is a human medical condition caused by the infestation of the hair by the parasitic insect Pediculus humanus capitis (human head lice). The most common symptom of infestation is pruritus (itching) on the head which normally intensifies 3 to 4 weeks after the initial infestation.

The test items have been developed with the ambition to offer a complete head lice treatment, whilst also offering ultimative convenience in use - making treatment of head lice infestation easy, and effective in few minutes.

The main objective of this clinical study is to confirm the efficacy on head lice treatment of two Medical Devices, already in market.

02

Conditions studied

  • Head Lice Infestation

Browse trials for

Keywords

  • Head Lice Infestation
  • Pediculosis capitis
03

In context

Lice Infestations

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

This study's planned enrollment of 136 is above the median of 105 across 42 interventional studies indexed under Lice Infestations.

Browse Lice Infestations studies →

Lead sponsor

Perrigo CSCI is the lead sponsor of 5 studies on the registry; 2 are open to participants now.

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

04

Who can participate

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

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Healthy subject;
  • Sex: male or female;
  • Age: 2 years and above;
  • Subject with a slight to moderate lice infestation (according to EU norms);
  • Subjects with various hair type (from 1 to 3C - hair scale) and hair length (from short to mid length hair, not exceeding shoulder);
  • Documented oral for all subjects, including minors, given freely and expressly before the start of the study;
  • Written informed consent for subjects ≥18 years or legal guardian for subjects \< 18 years given freely and expressly before start of the study;
  • Written assent for subjects ≥12 to \<18 years;
  • Subject/Subject's legal guardian is psychologically able to understand the study related information and to give written informed consent;
  • Females of must have a negative pregnancy test before the beginning of the study.

Exclusion criteria

Exclusion Criteria:

  • Pregnant (confirmed by pregnancy test for women of ) or nursing woman or planning a pregnancy during the study;
  • Subject who had been deprived of their freedom by administrative or legal decision or adult subject who is under guardianship;
  • Subject in a social or sanitary establishment;
  • Subject in an exclusion period from a previous study or who is currently participating in another study on hair/scalp or who participated to another clinical study on hair/scalp within 3 months before first visit;
  • Subject suspected to be non-compliant according to the investigator's judgment;
  • Subject with curly or frizzy hair (from 4A to 4C in the hair type scale);
  • Subject with hair length below the shoulder;
  • Subjects with more than 24 lice on the head.

In terms of associated pathology

  • Subject suffering from a severe or progressive disease or any other pathology that may interfere with the evaluation of the study results;
  • Subject with a cutaneous disease on the studied zone (scalp and hair);
  • Subject with severe scratches or open wounds/skin damages on the scalp (lice bites allowed however);
  • Subject with a known or suspected allergy to any of the components/materials of the devices, anti-lice comb or post-treatment shampoo;
  • Subject who has diabetes (type 1 or 2);
  • Subject with known or suspected immune deficiency or disease.

Relating to previous or ongoing treatment

  • Subject undergoing a topical treatment on the test area or a systemic treatment with:

    • anti-inflammatory medication and/or anti-histamines during the previous 2 weeks and during the study;
    • during the 2 previous weeks and during the study;
    • retinoids and/or immunosuppressors during the 3 previous months and during the study;
    • any medication stabilized for less than one month.
  • Subject who received an anti-lice treatment in the previous 2 months.
Terms in these criteria, in plain language(5)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
136 participants (estimated)

Study arms

  • Experimental
    Investigational Device

    Medical device for the treatment of head lice infestation: Paranix® Shampoo, already in the market in Europe Single topical application administered to hair and scalp for 10 minutes. Applied by principal investigator on site.

    Device: Paranix® Shampoo

  • Active comparator
    Comparator Device

    Medical device for the treatment of head lice infestation: Paranix® Lotion, already in the market in Europe Single topical application administered to hair and scalp for 10 minutes. Applied by principal investigator on site.

    Device: Paranix® Lotion

Interventions

  • DeviceParanix® Shampoo

    well established medical device for the treatment of head lice infestation (osmolone based)

  • DeviceParanix® Lotion

    well established medical device for the treatment of head lice infestation (dimethicone based)

06

What researchers measure

Primary outcomes

  1. Efficacy based on the cure rate after complete treatment

    The cure rate is defined as the rate of subjects having no live lice on hair 7 days after the last application of the product (Day 7 or Day 14 if second application is needed).

    Time frame: Day 7, Day 14 if applicable

Secondary outcomes

  1. Cure rate of each individual investigational device

    Evaluate the cure rate of each individual investigational device

    Time frame: Day 7, Day 14

  2. Cure rate after one dose of investigational device application

    Comparison of the percentage of subjects cured after one dose of the investigational device compared to the percentage of subjects cured with one dose of the comparator device.

    Time frame: Day 7

  3. Dead and live lice/nymphs after combing

    Number of dead and live lice/nymphs collected on the anti-lice comb after treatment.

    Time frame: Day 0, Day 7 if applicable

  4. Live lice and nymphs after application

    Evaluation of the presence of live lice and nymphs, for both groups, without combing on hair and close to scalp

    Time frame: Day 1, Day 7, Day 8 if applicable, Day 14 if applicable

  5. Number of participants with treatment-related adverse events, serious adverse events as assessed by investigator

    Evaluation of the safety and tolerability of the investigational device versus comparator

    Time frame: Day 0, Day 1, Day 7, Day 8 if applicable, and Day 14 if applicable

  6. Subject reported perceived acceptability, efficacy and subjective evaluation assessed via questionnaire

    Evaluation of the perceived acceptability, subjective efficacy and risk of re-infestation; Subject perception questionnaire with the following scale items: totally agree, agree, rather disagree, disagree

    Time frame: Day 1, Day 7 or Day 14 if applicable

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 28, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06057506
Lead sponsor
Perrigo CSCI
Responsible party
Sponsor
First posted
Sep 28, 2023
Start date
Aug 21, 2023
Primary completion
Nov 2023 (estimated)
Completion
Nov 2023 (estimated)
Last update
Sep 28, 2023

Study contacts

Manon Laune
Contact
mla@dermscan.com
+33 (0)4 72 82 36 56 4409
Aslham Doarika, PhD
principal investigator · Insight Collective

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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