Clinical trial NCT01850095: The Influence of Peripheral Androgen Conversion at Women Adult Acne
Official title: The Influence of Peripheral Androgen Conversion at Toll-like Receptors-2 and CD1d Expressions in Human Keratinocytes as Well as Their Modulation After 6 Months Treatment With Oral Contraceptive.
Study type: INTERVENTIONAL
Overall status: UNKNOWN
Phase: NA
Conditions: Acne
Quality of Life
Keywords: acne
adult
women
TLR
CD1d
androgens
Lead sponsor: Federal University of São Paulo
Sponsor class: OTHER
Collaborators: name: Fleury
name: Associacao Fundo de Incentivo a Psicofarmcologia
name: Bayer
First posted: 2013-05-09
Enrollment: 60
Sex: FEMALE
Minimum age (years): 26
Maximum age (years): 44
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: DIAGNOSTIC

Brief summary: Acne vulgaris is a chronic inflammatory disease that affects the pilosebaceous unit. Recent studies have demonstrated an increase number of acne cases in adult women. These cases are predominantly normoandrogenic and have some clinical differences when compared with the most common group, the adolescent. The local glandular metabolism converts some hormonal precursors to more active substances that increase the sebum production, leaving these areas more prone to increase the colonization to Propionibacterium Acnes (P. Acnes). Toll-like receptor 2, expressed by inflammatory cells play a crucial role in the innate immune response to this bacterium. Previous studies confirm that exist a reduced expression of CD1d by keratinocytes in acne lesion, what can be interpreted as a low antigen-present function. The influence of hormonal alteration in the sebaceous glands could modulate the expressions of TLR-2 and CD1d explaining the persistence of lesions in adult women. The change to more estrogenic metabolism, with use of specific contraceptive pills could normalize this immune-mediated inflammatory process.

Objective

To analyze how the peripheral androgen conversion can influence the toll-like receptor 2 and CD1d expression in women with inflammatory acne before and after 6 months of oral contraceptives with anti-androgen activity.


Eligibility criteria: Inclusion Criteria:

To all:

1. Signing the consent form before any study procedures;
2. women aged 26 to 44 years, not pregnant and in good health;
3. no topical treatment for acne in the past three months,
4. absence of the use of oral antibiotics in the last 3 months;
5. absence of the use of isotretinoin in the last 2 years;
6. absence of oral contraceptive use in the last 3 months;
7. absence of clinical evidence of immunosuppression and
8. accordance with the conditions of study, ability to understand and strictly follow the instructions given.

For the oral contraceptives group:

1. No contraindications to the use hormonal contraceptives.

For the azelaic acid group:

1. Absence of hypersensitivity to azelaic acid.

Exclusion Criteria:

For all

1. Women who do not agree with the conditions of the study or without the ability to understand and closely follow the guidelines received without availability to attend the revaluations or who refuse to sign the Informed Consent Form;
2. pregnant or lactating women;
3. use of the following oral medications: cortisone derivatives, lithium, anticonvulsants, isoniazid, oral contraceptives, androgens, danazol, iodides, bromides, disulfiram, cyclosporine, azathioprine, thiuram, vitamins B2, B6 and B12;
4. treatment of facial skin with topical retinoids (tretinoin and adapalene), azelaic acid, benzoyl peroxide, clindamycin, erythromycin, nicotinamina, alone or in combination, in the past 3 months;
5. treatment with oral antibiotics in the past 3 months;
6. acnogenics cosmetics.

For the group treated with oral contraceptives:

1. Presence of contraindications to oral contraceptive use:

1. Smokers over 35 years;
2. history of deep venous thrombosis;
3. history of stroke;
4. history of breast cancer;
5. presence of jaundice, and severe active liver disease or biliary disease;
6. diabetes mellitus for more than 20 years or eye injury, or neurological impairment;
7. blood pressure greater than or equal to 160 to 100 for systolic and diastolic;
8. cardiovascular disease and
9. presence of severe headache associated with blurred vision frequently.

For the group treated with azelaic acid:

1.Presense of allergic and / or irritating symptoms to the use of azelaic acid.

For the control group 1:

1. History, clinical signs and / or laboratory evidence of hyperandrogenism. 2 .Presence of inflammatory acne.

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Primary outcomes:
measure: Clinical evaluation of the treatment group
timeFrame: 6 months
Secondary outcomes:
measure: Photographic study of the treatment group
timeFrame: 6 months
Other outcomes:
measure: Application of the questionnaire index of quality of life in Acne
timeFrame: 6 months
measure: Immunohistochemical analysis with quantitative digital blind:
timeFrame: 6 months
measure: Serological blood measurements
timeFrame: 6 months
Locations:
city: são Paulo
country: Brazil
facility: Federal University of São Paulo-Dermatology
Study officials:
affiliation: UNIFESP-EPM
name: marco rocha, md
role: PRINCIPAL_INVESTIGATOR
References:
citation: Bhambri S, Del Rosso JQ, Bhambri A. Pathogenesis of acne vulgaris: recent advances. J Drugs Dermatol. 2009 Jul;8(7):615-8.
citation: Shen Y, Wang T, Zhou C, Wang X, Ding X, Tian S, Liu Y, Peng G, Xue S, Zhou J, Wang R, Meng X, Pei G, Bai Y, Liu Q, Li H, Zhang J. Prevalence of acne vulgaris in Chinese adolescents and adults: a community-based study of 17,345 subjects in six cities. Acta Derm Venereol. 2012 Jan;92(1):40-4. doi: 10.2340/00015555-1164.
citation: Gollnick H, Cunliffe W, Berson D, Dreno B, Finlay A, Leyden JJ, Shalita AR, Thiboutot D; Global Alliance to Improve Outcomes in Acne. Management of acne: a report from a Global Alliance to Improve Outcomes in Acne. J Am Acad Dermatol. 2003 Jul;49(1 Suppl):S1-37. doi: 10.1067/mjd.2003.618. No abstract available.
citation: Thiboutot D. Acne: hormonal concepts and therapy. Clin Dermatol. 2004 Sep-Oct;22(5):419-28. doi: 10.1016/j.clindermatol.2004.03.010.
citation: Kurokawa I, Danby FW, Ju Q, Wang X, Xiang LF, Xia L, Chen W, Nagy I, Picardo M, Suh DH, Ganceviciene R, Schagen S, Tsatsou F, Zouboulis CC. New developments in our understanding of acne pathogenesis and treatment. Exp Dermatol. 2009 Oct;18(10):821-32. doi: 10.1111/j.1600-0625.2009.00890.x. Epub 2009 Jun 23.
citation: White GM. Recent findings in the epidemiologic evidence, classification, and subtypes of acne vulgaris. J Am Acad Dermatol. 1998 Aug;39(2 Pt 3):S34-7. doi: 10.1016/s0190-9622(98)70442-6.
citation: Goulden V, Stables GI, Cunliffe WJ. Prevalence of facial acne in adults. J Am Acad Dermatol. 1999 Oct;41(4):577-80.
citation: Goulden V, Clark SM, Cunliffe WJ. Post-adolescent acne: a review of clinical features. Br J Dermatol. 1997 Jan;136(1):66-70.
citation: Poli F, Dreno B, Verschoore M. An epidemiological study of acne in female adults: results of a survey conducted in France. J Eur Acad Dermatol Venereol. 2001 Nov;15(6):541-5. doi: 10.1046/j.1468-3083.2001.00357.x.