CClinicalTrials.gg
Active, not recruitingNCT07041892Updated Jun 27, 2025

The Effects of an Oral Prebiotic and an Oral Synbiotic Supplement in Combination With a Topical Lotion and Soap On Eczema

An interventional study of Prebiotic Supplement + Synbiotic Supplement + Topical Lotion + Unscented Soap in Atopic Dermatitis (Eczema), sponsored by Codex Labs Corporation. Active, not recruiting at 1 site in Poland. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-06-27.

Sponsored by Codex Labs Corporation · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
34
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this study is to examine the effects of 2 dietary supplements (an oral prebiotic and an oral synbiotic) in combination with a topical lotion, and an unscented soap on eczema severity, various skin measures (such as skin hydration), and mood in those with eczema.

A prebiotic supplement contains ingredients that can get broken down by the bacteria in the gut.

A synbiotic supplement contains prebiotic and probiotic ingredients.

02

Conditions studied

  • Atopic Dermatitis (Eczema)

Keywords

  • eczema
  • supplement
  • dry skin
  • lotion
  • prebiotic
  • synbiotic
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 34 is below the median of 83 across 1,125 interventional studies indexed under Dermatitis, Atopic.

Browse Dermatitis, Atopic studies →

Lead sponsor

Codex Labs Corporation 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
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Sex: female and male;
  • Age : 18 years old and above;
  • Phototype: I to IV;
  • Type: Caucasian;
  • Subjects with active eczema condition the body (showing flakiness, irritation, itch and intense dryness);
  • Subjects with a SCORAD of 25 - 50;
  • Local EASI score of 0-15:

    • 30% - 4-5
    • 30%- 6-7
    • 30% - 8-9
  • Subjects with dry and very dry skin on the study areas (cutaneous hydration rate \< 50 A.U);
  • Subjects must not take antibiotics and / or apply any antifungal treatments (body/scalp) for 1 month before study start and during the entire study duration;
  • No change in hygiene, cosmetics, and make-up habits - except for the product(s) under study - during the entire study duration;
  • Subjects agreeing not to change lifestyle habits during the study duration
  • Healthy subject;
  • Subject having given her free informed, written consent;
  • Subject willing to adhere to the protocol and study procedures;
  • Subject with Polish citizenship.

Exclusion criteria

Exclusion Criteria:

  • For women with childbearing potential: pregnant or nursing woman or woman planning to get pregnant during the study;
  • Cutaneous pathology on the study zone (other than eczema);
  • Use of topical or systemic treatment during the previous weeks liable to interfere with the assessment of the cutaneous acceptability/efficacy of the study product (the subjects are allowed to use their topical corticosteroids during the study if needed; the information about the treatment and the number of applications must be noted in the daily log);
  • Subject having undergone a surgery under general anesthesia within the previous month;
  • Excessive exposure to sunlight or UV-rays within the previous month;
  • Subject enrolled in another clinical trial during the study period (concerns the studied zones).
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
34 participants (actual)

Study arms

  • Experimental
    Participant

    The participant is provided with and instructed to use an oral prebiotic supplement and an oral synbiotic supplement for the duration of the study. In addition, the participant is also provided with and instructed to use a topical lotion to use in replacement of of the participants usual moisturizing product and an unscented soap, in replacement of the participant's usual cleansing product for the duration of the study.

    Other: Prebiotic Supplement + Synbiotic Supplement + Topical Lotion + Unscented Soap

Interventions

  • OtherPrebiotic Supplement + Synbiotic Supplement + Topical Lotion + Unscented Soap

    The intervention includes 4 products: 1. An oral prebiotic dietary supplement 2. An oral synbiotic dietary supplement 3. A topical lotion 4. An unscented bar of soap

06

What researchers measure

Primary outcomes

  1. Objective and Subjective Scoring of Eczema Severity

    Change in eczema severity was assessed using SCORAD (SCOring of Atopic Dermatitis). A. First, the spread of eczema on different body areas is assessed by the investigator and calculated as a percent, where the maximum is 100%. B. Second, the intensity of skin redness, swelling, oozing, scratch marks, skin thickening and dryness is scored by the investigator from 0 to 3, where 0 is none, 1 is mild, 2 is moderate, and 3 is severe. C. Finally, for the subjective score, participants are asked to report the intensity of symptoms (itch and sleeplessness) from 0 to 10, where 0 is no itch or no sleeplessness, and 10 is the worst imaginable itch or insomnia sleeplessness. The total score of the objective SCORAD is obtained with the following formula: SCORAD = A/5 + 7 B/2 + C

    Time frame: 8 weeks

  2. Localized Eczema Severity

    Change in localized eczema severity is assessed with the Eczema Area and Severity Index (EASI). Skin redness, elevation, scratching, and thickening are assessed by the investigator on a scale of 0 to 3, where 0 is none, 1 is mild, 2 is moderate, 3 is severe. The localized EASI is the sum of these scores.

    Time frame: 8 weeks

  3. Objective and Subjective Scoring of Eczema Severity

    Change in eczema severity was assessed using SCORAD (SCOring of Atopic Dermatitis). A. First, the spread of eczema on different body areas is assessed by the investigator and calculated as a percent, where the maximum is 100%. B. Second, the intensity of skin redness, swelling, oozing, scratch marks, skin thickening and dryness is scored by the investigator from 0 to 3, where 0 is none, 1 is mild, 2 is moderate, and 3 is severe. C. Finally, for the subjective score, participants are asked to report the intensity of symptoms (itch and sleeplessness) from 0 to 10, where 0 is no itch or no sleeplessness, and 10 is the worst imaginable itch or insomnia sleeplessness. The total score of the objective SCORAD is obtained with the following formula: SCORAD = A/5 + 7 B/2 + C

    Time frame: 4 weeks

  4. Localized Eczema Severity

    Change in localized eczema severity is assessed with the Eczema Area and Severity Index (EASI). Skin redness, elevation, scratching, and thickening are assessed by the investigator on a scale of 0 to 3, where 0 is none, 1 is mild, 2 is moderate, 3 is severe. The localized EASI is the sum of these scores.

    Time frame: 4 weeks

Secondary outcomes

  1. Skin Hydration

    Change in skin hydration is assessed with a Corneometer.

    Time frame: 4 weeks

  2. Skin Hydration

    Change in skin hydration is assessed with a Corneometer.

    Time frame: 8 weeks

  3. Transepidermal Water Loss

    Change in transepidermal water loss is assessed with a Tewameter TM 300

    Time frame: 4 weeks

  4. Transepidermal Water Loss

    Change in transepidermal water loss is assessed with a Tewameter TM 300

    Time frame: 8 weeks

  5. Desquamation Index

    Change in desquamation is assessed with D-Squam®.

    Time frame: 4 weeks

  6. Desquamation Index

    Change in desquamation is assessed with D-Squam®.

    Time frame: 8 weeks

  7. Positive and Negative Affect

    Change in mood is assessed with the PANAS-SF (Positive and Negative Affect Schedule- Short Form). Participants are asked to evaluate the degree to which they experienced components of positive and negative affect : Interested, Distressed, Excited, Upset, Strong, Guilty, Scared, Hostile, Enthusiastic, Proud, Irritable, Alert, Ashamed, Inspired, Nervous, Determined, Attentive, Jittery, Active, and Afraid. A 5-point scale was used where 1 is very slightly or not at all, 2 is a little, 3 is moderately, 4 is quite a bit, and 5 is extremely.

    Time frame: 4 weeks

  8. Positive and Negative Affect

    Change in mood is assessed with the PANAS-SF (Positive and Negative Affect Schedule- Short Form). Participants are asked to evaluate the degree to which they experienced components of positive and negative affect : Interested, Distressed, Excited, Upset, Strong, Guilty, Scared, Hostile, Enthusiastic, Proud, Irritable, Alert, Ashamed, Inspired, Nervous, Determined, Attentive, Jittery, Active, and Afraid. A 5-point scale was used where 1 is very slightly or not at all, 2 is a little, 3 is moderately, 4 is quite a bit, and 5 is extremely.

    Time frame: 8 weeks

07

Study locations

1 site
  • Eurofins Dermscan Poland
    Gdansk, Poland
08

References and documents

Individual participant data

Plan to share: No — Data will need to be protected for patentability reasons while IP is being filed. Once IP considerations are finalized, data can be shared.

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 Jun 27, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07041892
Lead sponsor
Codex Labs Corporation
Collaborators
Eurofins Dermscan Pharmascan
Responsible party
Sponsor
First posted
Jun 27, 2025
Start date
Apr 4, 2025
Primary completion
Jun 6, 2025
Completion
Jun 30, 2025 (estimated)
Last update
Jun 27, 2025

Oversight

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

Not currently enrolling

This study is active, not recruiting, as verified in Jun 2025. You cannot join it, but the record below documents what was studied.

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