Clinical Study for the Evaluation of the Depigmenting Activity of a Cosmetic Product on Spotted Hand Skin

NCT ID: NCT02204436

Last Updated: 2014-07-30

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

22 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-11-30

Study Completion Date

2014-01-31

Brief Summary

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Aim of the study was to evaluate by instrumental measurements the depigmenting activity of a cosmetic treatment for spotted hand skin; in particular it was investigated the synergic activity of an emulsion, with clarifying-antioxidant activity combined with an activator gel, with hydration and keratolytic activity.

Female healthy volunteers aged 45-65 years old, presenting senile lentigo on the hands, were included in the study.

It was also aim of this study to evaluate treatment efficacy and cosmetic acceptability by the volunteers and tolerance both by investigator and volunteers.

Detailed Description

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The following instrumental evaluations were performed in basal conditions (T0 - before product use), after 4 (T4) and 8 week-treatment (T8):

* Image analysis with UV flash (Wood's light)
* Photographic recovery
* Skin spots image analysis
* Skin colour evaluation
* Spectrophotometry (skin brightness)
* Optical colorimetry (spots colour)

At the end of the study (T8), each volunteer filled a questionnaire regarding:

* the efficacy of the study product (skin brightness and hydration, spots dimensions and colour intensity - score: very marked; marked; medium; light; absent)
* the cosmetic acceptability of the study product: colour and perfume before and after application, consistency, spreadability, absorption, effect on the skin, greasiness and presence of product residues (score: negative; medium; good; excellent) the product tolerance (score: bad; poor; medium; good; excellent).

At the end of the study the investigator assessed the treatment tolerance considering the possible appearance of related adverse events as bad, poor, medium, good, excellent.

Conditions

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Healthy

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Emulsion and gel

A fixed similar quantity of both emulsion and gel were applied consequentially on the hand twice a day, in the morning and in the evening (preferentially always at the same hour), with a mild massage, until complete absorption, for 8 weeks.

Group Type OTHER

Emulsion and gel

Intervention Type OTHER

A fixed similar quantity of both emulsion and gel were applied consequentially on the hand twice a day, in the morning and in the evening (preferentially always at the same hour), with a mild massage, until complete absorption, for 8 weeks.

Interventions

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Emulsion and gel

A fixed similar quantity of both emulsion and gel were applied consequentially on the hand twice a day, in the morning and in the evening (preferentially always at the same hour), with a mild massage, until complete absorption, for 8 weeks.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* female healthy subjects
* age 45-65 years
* presence of moderate senile lentigo on the back of the hands
* accepting to not receive any drugs/cosmetic/chemical or physical treatment (peeling, intradermal implants etc.) able to change the skin characteristics during the entire duration of the study
* accepting to use the study product according to the instruction received by the investigator
* accepting not to expose to strong UV irradiation (UV session, or sun bathes) during the entire duration of the study
* subject agreeing not to use anti-spots products/treatments during the month preceding the test
* accepting to sign the Informed Consent Form

Exclusion Criteria

* pregnancy
* lactation
* sensitivity to the test product or its ingredients
* subjects whose insufficient adhesion to the study protocol is foreseeable
* participation in a similar study actually or during the previous 3 months
* dermatological disease (dermatitis; presence of cutaneous disease on the tested area, as lesions, scars, malformations)
* clinical and significant skin condition on the test area (e.g. active eczema, dermatitis, psoriasis. etc.)
* diabetes
* endocrine disease
* hepatic disorder
* renal disorder
* cardiac disorder
* pulmonary disease
* cancer
* neurological or psychological disease
* inflammatory/immunosuppressive disease
* drug allergy
* systemic corticosteroids
* aspirin or non-steroid anti-inflammatory drugs (FANS)
* anti-histaminic, narcotic, antidepressant, immunosuppressive drugs (with except of contraceptive or hormonal treatment starting from at least 1 year)
* assumption of drugs able to influence the test results in the investigator opinion
Minimum Eligible Age

45 Years

Maximum Eligible Age

65 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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Derming SRL

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Adele Sparavigna, Doctor

Role: PRINCIPAL_INVESTIGATOR

Derming SRL

Locations

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DermIng SRL

Monza, Monza, Italy

Site Status

Countries

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Italy

References

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Asawanonda P, Taylor CR. Wood's light in dermatology. Int J Dermatol. 1999 Nov;38(11):801-7. doi: 10.1046/j.1365-4362.1999.00794.x. No abstract available.

Reference Type BACKGROUND
PMID: 10583611 (View on PubMed)

Asserin J., Heusèle C., André P. , Preece S., Schnebert S. , Taieb A. Comparison of two techniques used in the evaluation of the depigmentation effect of cosmetic products on brown spots, 2004

Reference Type BACKGROUND

Claridge E, Cotton S, Hall P, Moncrieff M. From colour to tissue histology: Physics-based interpretation of images of pigmented skin lesions. Med Image Anal. 2003 Dec;7(4):489-502. doi: 10.1016/s1361-8415(03)00033-1.

Reference Type BACKGROUND
PMID: 14561553 (View on PubMed)

Claridge E, Preece SJ. An inverse method for the recovery of tissue parameters from colour images. Inf Process Med Imaging. 2003 Jul;18:306-17. doi: 10.1007/978-3-540-45087-0_26.

Reference Type BACKGROUND
PMID: 15344467 (View on PubMed)

Curry AS, Gettings SD, McEwen GN CTFA safety testing guidelines. The Cosmetic, Toiletry and Fragrance Association, Washington, 1991

Reference Type BACKGROUND

Fernay, Voltaire The World Medical Association (1989) "World Medical Association Declaration of Helsinki", Hong-Kong

Reference Type BACKGROUND

Fullerton A, Fischer T, Lahti A, Wilhelm KP, Takiwaki H, Serup J. Guidelines for measurement of skin colour and erythema. A report from the Standardization Group of the European Society of Contact Dermatitis. Contact Dermatitis. 1996 Jul;35(1):1-10. doi: 10.1111/j.1600-0536.1996.tb02258.x.

Reference Type BACKGROUND
PMID: 8896947 (View on PubMed)

Gilchrest BA, Fitzpatrick TB, Anderson RR, Parrish JA. Localization of malanin pigmentation in the skin with Wood's lamp. Br J Dermatol. 1977 Mar;96(3):245-8. doi: 10.1111/j.1365-2133.1977.tb06132.x.

Reference Type BACKGROUND
PMID: 857837 (View on PubMed)

Gupta LK, Singhi MK. Wood's lamp. Indian J Dermatol Venereol Leprol. 2004 Mar-Apr;70(2):131-5. No abstract available.

Reference Type BACKGROUND
PMID: 17642589 (View on PubMed)

Matts Paul J., Carey Jeremy, Cotton Symon D. Chromophore Mapping: a New Technique to Characterize Aging Human Skin, In Vivo. American Academy of Dermatology 2005

Reference Type BACKGROUND

Matts PJ, Dykes PJ, Marks R. The distribution of melanin in skin determined in vivo. Br J Dermatol. 2007 Apr;156(4):620-8. doi: 10.1111/j.1365-2133.2006.07706.x.

Reference Type BACKGROUND
PMID: 17493065 (View on PubMed)

Moncrieff M, Cotton S, Claridge E, Hall P. Spectrophotometric intracutaneous analysis: a new technique for imaging pigmented skin lesions. Br J Dermatol. 2002 Mar;146(3):448-57. doi: 10.1046/j.1365-2133.2002.04569.x.

Reference Type BACKGROUND
PMID: 11952545 (View on PubMed)

Rieger M.M., Battista G.W. Some experiences in the safety testing of cosmetics J. Soc. Cosmet. Chem. 15:161 -172 , 1964

Reference Type BACKGROUND

Rigano L. "Evaluation of the efficacy of a whitening product" ISPE Institute of Skin and Product Evaluation - March 15th 2007

Reference Type BACKGROUND

Sachs L. Applied statistics: a handbook of techniques Heidelberg: Springer, 1981:536-539

Reference Type BACKGROUND

Taelman M-C, Dederen J. C. Relative performance testing of formulations: emulsifiers Cosmetics &Toiletries magazine August 2000; 115: 37-42

Reference Type BACKGROUND

Takiwaki H. Measurement of skin color: practical application and theoretical considerations. J Med Invest. 1998 Feb;44(3-4):121-6.

Reference Type BACKGROUND
PMID: 9597799 (View on PubMed)

Zonios G, Bykowski J, Kollias N. Skin melanin, hemoglobin, and light scattering properties can be quantitatively assessed in vivo using diffuse reflectance spectroscopy. J Invest Dermatol. 2001 Dec;117(6):1452-7. doi: 10.1046/j.0022-202x.2001.01577.x.

Reference Type BACKGROUND
PMID: 11886508 (View on PubMed)

Related Links

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Other Identifiers

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E3013

Identifier Type: -

Identifier Source: org_study_id

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