Evaluation of Irritancy/Allergic Sensitivity to Natural Personal-care Products by Patch Tests
NCT ID: NCT01816542
Last Updated: 2013-03-22
Study Results
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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UNKNOWN
NA
100 participants
INTERVENTIONAL
2013-06-30
2013-09-30
Brief Summary
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Each product will be tested on the skin using patch tests.
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Detailed Description
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If there is no contraindication, and agreement is achieved,consent forms will be signed.
Volunteers will be examined by a lactic acid test to determine if he/she has normal or sensitive skin. In this test, a Finn's cell (plastic cell, size 1\*1 cm) with lactic acid (50 microliter, 10%w/v) will be placed on the volunteer's cheek for ten minutes. The volunteer will be defined as "sensitive" or "normal" according to the degree of discomfort they report.
Patch-tests will be performed in the standard method. The materials to be tested will be placed in Finn's cells and attached to the participants healthy skin's back by a plaster (Micropore).The chambers will be left on the skin for 48 hours. The test will be read by a specialist one hour after chambers' removal and 48 hours afterwards. Any erythema,edema, blisters, pustules or erosions on the skin in the patch area will be considered a positive response, and will be evaluated by clinical tools as being of the irritant or the allergic type. in case of uncertainty we may use a confocal microscope for in vivo diagnosis.
Ingredients: appropriate concentrations and solvents of the test materials will be prepared according to accepted standards (refer to: Anton C. De Groot: Patch Testing, 3ed Edition, Wapserveen, The Netherlands, 2009).Leave on products will be tested 'as is'. Rinse off products will be diluted to 5% and 0.5%.
If the skin stays normal after the patch removal, it means that contact with the material did not cause allergy or irritation.
Conditions
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Study Design
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NA
SINGLE_GROUP
SCREENING
NONE
Study Groups
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patch tests on healthy skin
patch tests on healthy skin
Patches will be placed on healthy skin.
Interventions
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patch tests on healthy skin
Patches will be placed on healthy skin.
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
* Subjects with an allergy or a skin disease which interferes with the proper results of the tests.
* Subjects who are taking medications which can interfere with the proper results of the tests. For example: systemic corticosteroids, topical steroids applied to the test area.
* Subjects with sun or phototherapy induced tanning at the test area.
* Subject who had been participating in allergy tests within eight weeks prior to the present tests.
18 Years
65 Years
ALL
Yes
Sponsors
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Mother's Choice Ltd
INDUSTRY
Responsible Party
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Principal Investigators
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Arieh Ingber, MD Prof.
Role: PRINCIPAL_INVESTIGATOR
Hadassah University Hospital, Department of Dermatology
Liran Horev, MD
Role: PRINCIPAL_INVESTIGATOR
Hadassah University Hospital, Department of Dermatology
Locations
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Department of Dermatology, Hadassah University Hospital
Jerusalem, , Israel
Countries
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Central Contacts
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Liran Horev, MD
Role: CONTACT
References
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Mahmood T, Akhtar N. Short term study of human skin irritation by single application closed patch test: assessment of four multiple emulsion formulations loaded with botanical extracts. Cutan Ocul Toxicol. 2013 Mar;32(1):35-40. doi: 10.3109/15569527.2012.700472. Epub 2012 Jul 5.
Davies RF, Johnston GA. New and emerging cosmetic allergens. Clin Dermatol. 2011 May-Jun;29(3):311-5. doi: 10.1016/j.clindermatol.2010.11.010.
Other Identifiers
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MC-2013-PT-BA
Identifier Type: -
Identifier Source: org_study_id
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