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Completed

NCT Number: NCT06763939

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

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.

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Key information

Conditions

Atopic Dermatitis Congenital, Hereditary, and Neonatal Diseases and Abnormalities Dermatitis Dermatitis, Atopic Genetic Diseases, Inborn Hypersensitivity Hypersensitivity, Immediate Immune System Diseases Skin Diseases Skin Diseases, Eczematous Skin Diseases, Genetic Skin and Connective Tissue Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Dermscan Poland

Gdansk, Poland, 80288

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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;

Treatment and study plan

RT00401-GO0046

Other

Cosmetic care product

RT00401-GA0677

Other

Placebo cosmetic care product

Primary outcomes

  1. Evaluation of SCORAD

    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),

    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

  2. Evaluation of 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),

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

  3. Evaluation of L-PO 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),

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

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

    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),

    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).

  5. Microbiota diversity

    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),

    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

  6. Metabolomic features

    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),

    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

  7. Cytokine panel

    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),

    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

  8. Transepidermal water loss measurments by tewameter®

    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),

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

  9. Skin pH measurements by phmeter

    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),

    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

  10. Investigator Global Assessment (IGA)

    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),

    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).

  11. Patient Global Assessment (PGA)

    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),

    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).

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

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

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

Sponsors and collaborators

Lead sponsor

Pierre Fabre Dermo Cosmetique

Industry

Registry information

Official study title

A Randomized, Comparative, Investigator-blinded Study to Evaluate the Efficacy of a Dermocosmetic Product RT00401 - Formula: GO0046 on Atopic Dermititis Severity in Subjects With Mild Atopic Dermatitis Versus Placebo.

Important dates

Study start
2025
Primary completion
2025
Study completion
2025
First posted
Jan 8, 2025
Registry last updated
Aug 28, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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