Effect of a cream containing hyaluronic acid and bacterial wall extract on skin bacterial flora in subjects with facial seborrheic dermatitis

ISRCTN ISRCTN74021432
DOI https://doi.org/10.1186/ISRCTN74021432
Secondary identifying numbers EutrosisDs02/2017
Submission date
30/10/2018
Registration date
08/11/2018
Last edited
30/12/2022
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Skin and Connective Tissue Diseases
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
Seborrheic dermatitis (SD) is a common inflammatory skin disease, which commonly involves scalp, the face and sometimes the chest. These body areas are rich in sebaceous glands, which are involved in SD. SD is characterized by redness of the skin, oily skin, and itching. One cause of SD is the overgrowth of a particular type of fungus called Malassezia. Therefore, drugs or creams with anti-fungal activity could be beneficial in the treatment of SD. However, recent data has shown that SD leads to a change in the composition of the bacteria that live on the skin (bacterial skin flora). Some types of bacteria are reduced, whereas the population of other types is greatly increased. This trial aims to look at the effects of a new cream on reducing SD, and its effects on the composition of the bacterial skin flora.

Who can participate?
Adults with seborrheic dermatitis of the face

What does the study involve?
Participants will be provided with the study cream and asked to use it twice daily on their face for 6 weeks. They will have skin swabs taken at the start of the study, during the treatment and at the end of the treatment to evaluate their bacterial skin flora.

What are the possible benefits and risks of participating?
The possible benefit to participants is that the cream may improve their SD symptoms and their bacterial skin flora may be re-balanced. There are no known risks to participants taking part in this study.

Where is the study run from?
Three dermatology clinics in Italy:
1. Tor Vergata University (Rome)
2. Ospedale Le Torrette (Ancona)
3. Poliambulatorio Medica Plus (Modena)

When is the study starting and how long is it expected to run for?
February 2017 to May 2018

Who is funding the study?
Cantabria Labs Difa Cooper (Italy)

Who is the main contact?
Dr Massimo Milani MD
massimo.milani@difacooper.com

Contact information

Dr Massimo Milani
Scientific

Via Milano 160
Caronno Pertusella
21042
Italy

ORCiD logoORCID ID 0000-0001-7559-1202
Phone +39029659031
Email massimo.milani@difacooper.com

Study information

Study designInterventional prospective multi-center open assessor-blinded non-randomised study
Primary study designInterventional
Secondary study designNon randomised study
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use contact details to request a participant information sheet
Scientific titleEffects of a cream containing 5% hyaluronic acid conjugated with bacterial wall extract on signs and symptoms and on skin microbiota in subjects with seborrheic dermatitis of the face
Study objectivesA facial cream containing hyaluronic acid 5% complexed with a bacterial-wall-derived glycoprotein and peptide glycan complex (GPPG-complex) with a known immunomodulator action can equilibrate the facial microbiota in subjects with seborrheic dermatitis
Ethics approval(s)Institutional Review Board of the Coordinating Center (Tor Vergata University, Rome), 22/02/2017, 18bis/2017
Health condition(s) or problem(s) studiedSeborrheic dermatitis of the face
InterventionParticipants will be provided with a cosmetic cream containing hyaluronic acid 5%, bacterial wall ferment, zinc PCA, climbazole, piroctone and glycyrrhetinic acid, to be used twice daily on the face (2 finger tip units (FTU) for each application), once in the morning and once in the evening, for 6 weeks.
There will be no follow-up period.
Intervention typeOther
Primary outcome measureThe Investigator Global Assessment (IGA) is used at the baseline, week 3 and week 6 to assess the following:
1. Erythema
2. Seborrhea
3. Itching
Secondary outcome measuresEvolution of superficial facial microbiota in the following areas:
1. Interglabellar
2. Naso-labial fold
3. Mandibular rim
This was assessed using 16Sr RNA gene sequencing at the baseline and after 6 weeks. Samples for RNA sequencing were obtained

The samples for RNA sequencing were obtained with Dry swabbing . Sample were taken in 3 different areas for each subject: Zone 2 Glabellar ; zone 2: nasolabial fold; Zone 3: mandibular rim. Swabs were stored a -80 C until the tests

Dry swab samples of the following areas were taken to assess superficial facial microbiota using 16S rRNA gene sequencing at the baseline and after 6 weeks:
1. Interglabellar
2. Nasolabial fold
3
Overall study start date01/02/2017
Completion date01/05/2018

Eligibility

Participant type(s)Patient
Age groupAdult
SexBoth
Target number of participants70
Total final enrolment75
Key inclusion criteria1. Aged 20 years or older
2. Clinical diagnosis of moderate or severe seborrheic dermatitis
3. Written informed consent
Key exclusion criteria1. HIV positive
2. Specific oral or topical treatments for seborrheic dermatitis (SD) in the previous 4 weeks
3. Pregnancy or breastfeeding
4. Known allergies to one or more component of the tested cream
5. Other inflammatory skin conditions other than SD
6. Use of oral probiotics in the previous 6 weeks
7. Cigarette smoking
Date of first enrolment01/04/2017
Date of final enrolment01/12/2017

Locations

Countries of recruitment

  • Italy

Study participating centres

Dermatology Clinic University Tor Vergata
POLICLINICO TOR VERGATA Viale Oxford, 81 - 00133 Roma
Rome
00133
Italy
Dermatology Clinic University of Ancona
Le Torrette Hospital
Via Conca
71
Ancona
60030
Italy
Poliambulatorio Medica Plus
Viale dei Caduti in Guerra 101
Modena
41122
Italy

Sponsor information

Difa Cooper
Industry

Via Milano 160
Caronno Pertusella
21042
Italy

Phone +39029659031
Email massimo.milani@difacooper.com
ROR logo "ROR" https://ror.org/044sr7e96

Funders

Funder type

Industry

Difa Cooper

No information available

Results and Publications

Intention to publish date01/01/2019
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planWe intend to publish the study results on an international peer-reviewed indexed scientific journal
IPD sharing planThe datasets generated during and/or analysed during the current study are/will be available upon request from Dr Massimo Milani (massimo.milani@difacooper.com). Raw data are stored in an Excel datasheet and will be stored for 10 years.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Basic results 02/11/2018 23/11/2018 No No
Results article 02/05/2019 30/12/2022 Yes No

Additional files

ISRCTN74021432_BasicResults_02Nov2018.pdf
Uploaded 23/11/2018

Editorial Notes

30/12/2022: Publication reference and total final enrolment added.
24/04/2019: Internal review.
23/11/2018: The basic results of this trial have been uploaded as an additional file.