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Skin AgingBACCHUSNCT03603587

Bioclinical Study of Scalp Photoaging of a Population Male Over 65 Years Old.

A study testing biopsy, blood sample and questionnaire on sun exposure in people with Skin Aging and Skin Cancer, run by Centre Hospitalier Universitaire de Saint Etienne at 1 site in France.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The aging of skin, especially that of the scalp, is a combination of intrinsic and extrinsic aging factors secondary to the chronic sun exposure. For men with an alopecia genetic (= bald men), the solar part, in skin aging process, is major. Read more about this study

Who is it for?
Ages 65 years and older, men only
Conditions the study is for
Skin Aging, Skin Cancer
What is being tested?
biopsy, blood sample and questionnaire on sun exposure
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1 participants
Where
1 siteFrance
Study dates
14 Feb 2019to 20 Sep 2019
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 65 years and older
  • Men only
  • No healthy volunteers
  • Older adult

Who may be able to join

  • Requiring excision of an alopecic scalp lesion
  • from consent signed
  • Patient affiliated or entitled to a social security.

Who cannot join

  • scalp infection
  • inflammatory disease of the scalp
  • genetic disease with even partial expression of the scalp
  • medical treatment of scalp less than 3 weeks old
  • antecedent radiotherapy of the cephalic extremity
  • prior surgery of the scalp with regard to the area sampled
Show all 10Show fewer
  • Application of hair implants, or any other surgical or medical procedures of the scalp
  • Washing of the scalp or application of a cosmetic product for less than 48 hours
  • Artificial hair coloring.
  • any contraindication to surgical excision

Trial locations and contacts

1 site in 1 country.

France1 site
  • Chu de Saint Etienne

    Saint-Etienne, 42000

Other trials in France

About this study

Official title: Bioclinical Study of Scalp Photoaging of a Population Male Over 65 Years Old. Mono-centric Prospective Study

The aging of skin, especially that of the scalp, is a combination of intrinsic and extrinsic aging factors secondary to the chronic sun exposure. For men with an alopecia genetic (= bald men), the solar part, in skin aging process, is major.

The helio-dermal scalp is frequently the site of cancers mainly after 65 years. Objectives are to identify specific biomarkers involved in the photo-aging of the alopecic scalp

Read the detailed description

Investigators can also hope to understand and to explain the inter-individual inequality of the aging of skin. They can hope to a better understanding of the biological mechanisms between photo-induced skin aging and photo-induced carcinogenesis.

Investigators propose to study 40 male patients aged 65 and over in order to compare the state of aging of their scalp skin in the alopecic zone :

not hairy photo-exposed (= ZH sun damage zone) versus occipital hair zone protected photo (= ZT control zone).

Patients will be recruited in the dermatology department of the St-Etienne University Hospital who will benefit from the removal of a scalp tumour in the alopecic zone.

This study aims to identify biological markers, by transcriptomic analysis, associated with aging of the scalp, by comparing for each patient the skin of the scalp exposed to the light ("ZH") to an unexposed witness skin ("ZT").

The study will include :

  • examinations to characterize components of the scalp: transcriptomic, proteomic and immunohistochemical analysis of skin biopsies, and a swab sampling will identify the cutaneous microflora of the scalp
  • noninvasive examinations, in vivo
Being tested
biopsy, blood sample, questionnaire on sun exposure, examination of the scalp, Norwood scale
Keywords
biologic markers, skin cancer, solar aging of skin, alopecic scalp
Medical subject headings
Skin Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • biopsyProcedure or surgery

    Biopsy 4 to 5 mm from the distal part of the tips of the excision pieces. Three biopsies of 3 mm, made with punch, occipital hair zone (ZT) A completely painless sample, using a swab (soaked with a buffer solution) on the scalp of the ZH and ZT zone.

  • blood sampleDiagnostic test

    Blood sample will be collected for performed for HIV serology, B and C hepatitis.

  • questionnaire on sun exposureDiagnostic test

    Questionnaire on sun exposure will be completed by patients.

  • examination of the scalpDiagnostic test

    A complete examination of the scalp will be completed by dermatologist.

  • Norwood scaleDiagnostic test

    Norwood scale measure the evolution of baldness. It will be completed by dermatologist.

  • questionnaire of clinicals signsDiagnostic test

    Questionnaire of clinicals signs will be completed by dermatologist and patient.

  • scinexa scoreDiagnostic test

    It's a assessment score of skin aging. It will be completed by dermatologist.

  • questionnaire of the history of the hair lossDiagnostic test

    Questionnaire of the history of the hair loss will be completed by dermatologist and patient.

Study groups in NCT03603587
Study groupRoleWhat they receive
Patients who will benefit from the removal of a scalp tumourExperimentalPatients who will benefit from the removal of a scalp tumour in the alopecic zone will be recruited in the dermatology department of the St-Etienne University Hospital. They will have biopsy, blood sample, examination of the scalp, questionnaire on sun exposure, Norwood scale, scinexa score, questionnaire of clinicals signs and questionnaire of the history of the hair loss.
Receives: Procedure: biopsy; Diagnostic Test: blood sample; Diagnostic Test: questionnaire on sun exposure; Diagnostic Test: examination of the scalp; Diagnostic Test: Norwood scale; Diagnostic Test: questionnaire of clinicals signs; Diagnostic Test: scinexa score; Diagnostic Test: questionnaire of the history of the hair loss

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Scalp skin biomarkers

    Comparison of scalp skin biomarkers. It's compare cell differentiation, cell proliferation, cellular pigmentation, cell adhesion, cytoskeleton, aging and cellular senescence, extracellular matrix, antioxidant activity and inflammation.

    Measured: at the surgery (about 28 days after the inclusion)

Secondary outcomes (11)
  1. Differential expression profile of proteomic biomarkers

    The profile will be evaluated by relative quantification results of proteomic analyzes by a Shot-Gun Label-Free strategy.

    Measured: 28 days

  2. Data of thickness measurements of the 3 layers of the skin

    Data will be examined by OCT examination (Optical Coherent Tomography): measuring the intensity of the dermis shine and the thickness of the epidermis.

    Measured: 28 days

  3. scalp microflora

    Microflora will be evaluated by high-throughput sequencing (Illumina MiSeq) of the V1-V3 region of the ribosomal RNA (bacteria) and Internal Transcribed Spacer 1 (eukaryotes: yeasts) and evaluation of the amount of P. acnes of the scalp by quantitative RT-PCR of the lipase A gene.

    Measured: 28 days

  4. Percentage of anisotropy of the tensile forces of the skin

    This percentage will be evaluated by silicone casts

    Measured: 28 days

  5. histology

    Skin aging is evaluated by histological examination: optical and biophotonic microscopy, semi-quantitative measurements of extracellular matrix markers such as collagens and elastin.

    Measured: 28 days

  6. Heterogeneity of pigmentation

    Heterogeneity of pigmentation will be measured using a numerical index (0 to 100) of heterogeneity, using data from dermatoscopic images.

    Measured: 28 days

  7. Scinexa score (SCore for INtrinsic and EXtrinsic skin Aging)

    The aging of the skin is evaluated by a semi-quantitative composite of 23 clinical variables : the scinexa score The global SCINEXA score (from 0 to 69. 0 = no skin aging and 69 = severe skin aging ) was obtained by adding the scores of each variable from 0 to 3.

    0 = none, 1 = mild, 2 = moderate and 3 = severe.

    Measured: 28 days

  8. The measurement of the thickness of the dermis

    ultrasound examination: measurement in mm of the thickness of the dermis and the hypodermis

    Measured: 28 days

  9. The measurement of the morphology of the dermal junction epidermis

    examination in MCIV: measurement of the morphology of the dermal junction epidermis by semi-quantitative in vivo confocal microscopy

    Measured: 28 days

  10. Solar exposure score

    Solar exposure score : to assess in different periods

    1. period of 10 to 17 years old
    2. period of 18 to 40 years old
    3. period of 41 to 60 years old
    4. period since 61 years old

    Each period contains same questions. Each item being rated in 5 answer choice from 1 to 5 (never, rarely, sometimes, often or very often) and two questions concern the zone where the patient live.

    Measured: 28 days

  11. Norwood's scale

    The Norwood Scale is a set of images that depict the different stages of male pattern hair loss.

    The Norwood scale is composed of 12 images. Each image corresponds to one level. There is 7 levels (I , II, II A, III, III vertex, III A, IV, IVA, V, VA, VI, VII) Type I. Minimal hair loss. Type VII. The most severe form of hair loss. Little hair on the front or top of the head.

    Measured: 28 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 Jul 2018
  2. Study start14 Feb 2019
  3. Primary completion20 Sep 2019
  4. Study completion20 Sep 2019

Why it stopped: Organisation issues

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Other
Allocation
Not applicable
Intervention model
Single group
Model description
This is a prospective mono-centric study of the physiopathology of cutaneous aging.
Masking
None (open label)
Enrolment
1 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03603587
Sponsor's protocol ID
18CH035
Other IDs
2018-A00714-51
Acronym
BACCHUS
Status last verified
Mar 2020
First submitted
7 Jun 2018
Last updated
5 Mar 2020
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Zouboulis CC, Makrantonaki E. Clinical aspects and molecular diagnostics of skin aging. Clin Dermatol. 2011 Jan-Feb;29(1):3-14. doi: 10.1016/j.clindermatol.2010.07.001.

    PubMed 21146726
  • Uitto J. Understanding premature skin aging. N Engl J Med. 1997 Nov 13;337(20):1463-5. doi: 10.1056/NEJM199711133372011. No abstract available.

    PubMed 9358147
  • Shin MH, Rhie GE, Park CH, Kim KH, Cho KH, Eun HC, Chung JH. Modulation of collagen metabolism by the topical application of dehydroepiandrosterone to human skin. J Invest Dermatol. 2005 Feb;124(2):315-23. doi: 10.1111/j.0022-202X.2004.23588.x.

    PubMed 15675949
  • Rock K, Grandoch M, Majora M, Krutmann J, Fischer JW. Collagen fragments inhibit hyaluronan synthesis in skin fibroblasts in response to ultraviolet B (UVB): new insights into mechanisms of matrix remodeling. J Biol Chem. 2011 May 20;286(20):18268-76. doi: 10.1074/jbc.M110.201665. Epub 2011 Mar 17.

    PubMed 21454612
  • Varani J, Spearman D, Perone P, Fligiel SE, Datta SC, Wang ZQ, Shao Y, Kang S, Fisher GJ, Voorhees JJ. Inhibition of type I procollagen synthesis by damaged collagen in photoaged skin and by collagenase-degraded collagen in vitro. Am J Pathol. 2001 Mar;158(3):931-42. doi: 10.1016/S0002-9440(10)64040-0.

    PubMed 11238041

Questions about this trial

What is this clinical trial studying?

A study testing biopsy, blood sample and questionnaire on sun exposure in people with Skin Aging and Skin Cancer, run by Centre Hospitalier Universitaire de Saint Etienne at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 5 Mar 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was stopped early (reason given: Organisation issues). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Scalp skin biomarkers (time frame: at the surgery (about 28 days after the inclusion)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03603587, which also lists 5 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Mar 2020.

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