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CompletedNCT06763939Updated Aug 28, 2025

Evaluation of the Efficacy of a Dermocosmetic Product RT00401-GO0046 on Atopic Dermititis Severity in Subjects With Mild Atopic Dermatitis Versus Placebo

An observational study in Atopic Dermatitis, sponsored by Pierre Fabre Dermo Cosmetique. Completed at 1 site in Poland. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-08-28.

Sponsored by Pierre Fabre Dermo Cosmetique · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
32
Ages
18 Years and older
Sex
All
01

Study summary

The aim of this study is to evaluate the RT00401- GO0046 formula on atopic dermititis severity in subjects with mild atopic dermatitis versus placebo on 26 subjects.

The objectives of this study are:

  • To evaluate the clinical efficacy of the RT00401-GO0046 cream compared to RT00401-GA0677 placebo cream on AD severity of tested areas and flare-up onset.
  • To evaluate the effect of the RT00401-GO0046 cream on microbiota diversity and other pharmaco-clinical biomarkers with respective techniques on skin surface in subjects with AD compared to the effect of the RT00401-GA0677 placebo cream.
  • To illustrate the effect of the RT00401-GO0046 cream with photos of the tested areas.

This study will be conducted as an intra-individual, comparative, randomized, monocentric, investigator-blinded study, with 3 visits are planned:

  • Visit 1 (D1): Inclusion and 1st products application
  • Visit 2 (D29 +/- 2 days): 1-month follow-up visit
  • Visit X (Suspected flare-up +/- 2 days): End-of-study visit if AD flare-up is confirmed
  • Visit 3 (D85 +/- 3 days): End-of-study visit This clinical study is designed as an investigator-blinded study. Participants will be required to apply two different products, one on each side: Product A and Product B. One of these products is the "test product" RT00401 Formula GO0646, and the other is the "control product" RT00401 Formula GA0677. However, participants will not know which product is which. The randomization will determine the side on which each product is applied (Product A on the right and Product B on the left, or vice versa). The product tubes will be identical, ensuring that neither the participants nor the investigator will know which product is the test product or the control product. This blinding ensures that neither the participants nor the investigator will be influenced by the nature of the products applied, thereby enhancing the robustness and objectivity of the study results.
02

Conditions studied

  • Atopic Dermatitis

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03

In context

Dermatitis, Atopic

1,419 studies on the registry are indexed under Dermatitis, Atopic; 258 are open to participants now.

This study's enrollment of 32 is below the median of 150 across 237 observational studies indexed under Dermatitis, Atopic.

Browse Dermatitis, Atopic studies →

Lead sponsor

Pierre Fabre Dermo Cosmetique is the lead sponsor of 58 studies on the registry; 3 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Subjects will be recruited from the investigation centre's panel. They will be selected on the basis of inclusion and non-inclusion criteria specific to the study and on their ability to comply with the constraints required by the protocol. They will be definitely included in the study after a specific interview and a clinical examination.

Eligibility criteria

Main Inclusion criteria :

  • Female and/or male;
  • Subject aged ≥ 18 years;
  • Subjects presenting atopic dermatitis according to the definition of "the U.K Working Party's Diagnostic Criteria for Atopic Dermatitis";
  • Subject presenting a mild AD with a SCORAD from 15 to 20 with dryness evaluation parameter ≥ 2 at inclusion;
  • Based on the subject's statements regarding their skin condition history:
  • Subject with AD symmetric lesions, size from 10 to 15 cm² on both target areas;
  • Subject who will likely present a flare-up during their participation according to investigator's opinion;

Main Non inclusion criteria

  • Subject whose skin condition in the potential target areas is contact eczema or dyshidrotic eczema rather than atopic dermatitis (particularly on feet).
  • Subject having any other dermatologic condition than Atopic Dermatitis, or characteristics (like tattoo) on the tested areas, liable to interfere with the study assessments according to investigator opinion;
  • Subject having significant hair growth on tested areas;
  • Subject presenting a flare-up at time of inclusion visit requiring a therapeutic care;
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
32 participants (actual)
Patient registry
No
Biospecimen retention
Samples without dna

Groups and cohorts

  • Subjects with mild atopic dermatitis

    This is an intra-individual study. The included subjects will apply both products, one on each side of target areas. The target areas can be located on both arms, both legs, both feet, both sides of lower back, or both sides of face (for women only) or lower back if the zones are clearly distinct and accessible for the products application. One of the identified areas will be tested with RT00401-GO0046 cream and the symmetric area will be tested with RT00401-GA0677 cream according to randomization. Not all study participants will apply the products to the same sides.

    Other: RT00401-GO0046 · Other: RT00401-GA0677

Interventions

  • OtherRT00401-GO0046

    Cosmetic care product

  • OtherRT00401-GA0677

    Placebo cosmetic care product

06

What researchers measure

Primary outcomes

  1. Evaluation of SCORAD

    an examination of the face and body of the subject is carried out by the dermatologist in charge of the study to evaluate the initial intensity of atopic dermatitis by determination of SCORAD index

    Time frame: At baseline (Day 1) and at the final visit (Day 85 or Day X if the flare-up of AD is confirmed before Day 85),

  2. Evaluation of L-SCORAD

    The Local SCORAD is the evaluation of the objective parameters of the SCORAD will be assessed independently on both target areas by the Investigator

    Time frame: At baseline (Day 1), at Visit 2 (Day 29) and at the final visit (Day 85 or Day X if the flare-up of AD is confirmed before Day 85),

  3. Evaluation of L-PO SCORAD

    The Local PO SCORAD will be evaluated by the subjects independently on the same target areas that L-SCORAD

    Time frame: At baseline (Day 1), at Visit 2 (Day 29) and at the final visit (Day 85 or Day X if the flare-up of AD is confirmed before Day 85),

  4. Evolution of pruritus sensations using numerical rating scale (NRS)

    The subject will realize auto-scoring of pruritus independently on both target areas perceived (with average intensity over the last 3 days) using a Numeric Rating Scale from 0 (no pruritus) to 10 (severe discomfort sensations).

    Time frame: At baseline (Day 1), at Visit 2 (Day 29) and at the final visit (Day 85 or Day X if the flare-up of AD is confirmed before Day 85),

  5. Microbiota diversity

    A total of 18 cutaneous samples per subject: 3 by cotton-swab samples per sampling area per time point will be taken at each study visit, on the study areas (identified at inclusion visit), will be carried out for analyses

    Time frame: At baseline (Day 1), at Visit 2 (Day 29) and at the final visit (Day 85 or Day X if the flare-up of AD is confirmed before Day 85),

  6. Metabolomic features

    A total of 18 cutaneous samples per subject: 3 by cotton-swab samples per sampling area per time point will be taken at each study visit, on the study areas (identified at inclusion visit), will be carried out for analyses

    Time frame: At baseline (Day 1), at Visit 2 (Day 29) and at the final visit (Day 85 or Day X if the flare-up of AD is confirmed before Day 85),

  7. Cytokine panel

    A total of 18 cutaneous samples per subject: 3 by cotton-swab samples per sampling area per time point will be taken at each study visit, on the study areas (identified at inclusion visit), will be carried out for analyses

    Time frame: At baseline (Day 1), at Visit 2 (Day 29) and at the final visit (Day 85 or Day X if the flare-up of AD is confirmed before Day 85),

  8. Transepidermal water loss measurments by tewameter®

    A trans-epidermal water loss will be measured with a Tewameter TM 300® independently on both target areas

    Time frame: At baseline (Day 1), at Visit 2 (Day 29) and at the final visit (Day 85 or Day X if the flare-up of AD is confirmed before Day 85),

  9. Skin pH measurements by phmeter

    A cutaneous pH level will be measured with a COURAGE \& KHAZAKA PH 900 PC Skin pHmeter® fitted with an Ingold® electrode independently on both target areas

    Time frame: At baseline (Day 1), at Visit 2 (Day 29) and at the final visit (Day 85 or Day X if the flare-up of AD is confirmed before Day 85),

  10. Investigator Global Assessment (IGA)

    IGA will be assessed by the investigator independently on both target areas perceived at each study visit from Visit 2, compared to Visit 1, according to a 5-point scale: 0= worse, 1= no change, 2= slight improvement, 3= marked improvement; 4= total resolution Local IGA assesses the evolution of target areas AD basing on objective signs (erythema, oedema/papulation, oozing/crusts, excoriation, lichenification, dryness) compared to baseline (Visit 1).

    Time frame: At baseline (Day 1), at Visit 2 (Day 29) and at the final visit (Day 85 or Day X if the flare-up of AD is confirmed before Day 85),

  11. Patient Global Assessment (PGA)

    PGA will be assessed by the subjects independently on both target areas perceived at each study visit from Visit 2, compared to Visit 1, according to a 5-point scale: 0= worse 1= no change, 2= slight improvement, 3= marked improvement; 4= total resolution Local PGA assesses the evolution of target areas AD intensity compared to baseline (Visit 1).

    Time frame: At baseline (Day 1), at Visit 2 (Day 29) and at the final visit (Day 85 or Day X if the flare-up of AD is confirmed before Day 85),

  12. Atopic dermititis severity by counting of flare-up onset

    At the end of the study, the number of flare-ups that occurred during the study will be evaluated

    Time frame: At the end of study, after last patient out, approximately 6 months after the beggining of the study.

07

Study locations

1 site
  • Dermscan Poland
    Gdansk, Poland 80288, Poland
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 Aug 28, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06763939
Lead sponsor
Pierre Fabre Dermo Cosmetique
Responsible party
Sponsor
First posted
Jan 8, 2025
Start date
Feb 17, 2025
Primary completion
Jun 24, 2025
Completion
Jun 24, 2025
Last update
Aug 28, 2025

Oversight

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

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