Ultraviolet B (UVB) Light Therapy in the Treatment of Skin Conditions With Altered Dermal Matrix

Sponsor

University of Michigan (Other)

Overall Status

Completed

CT.gov ID

NCT00129428

Collaborator

(none)

Enrollment

Location

Arm

Duration (Months)

0.4

Patients Per Site Per Month

Study Details

Study Description

Brief Summary

This research study will evaluate the effectiveness of high dose UVB light therapy in the treatment of keloid (or hypertrophic scar), scleroderma, acne keloidalis nuchae, old burn scars, granuloma annulare or related conditions.

Condition or Disease	Intervention/Treatment	Phase
Keloid Scleroderma, Localized Acne Keloidalis Scars Granuloma Annulare	Procedure: UVB Irradiation	Phase 1/Phase 2

Detailed Description

Keloid, scleroderma, acne keloidalis nuchae, and burn scars are all characterized by collagenous thickening of the skin resulting in superficial and deep cutaneous sclerosis. Treatments for these disabling conditions are inadequate at present. Recently, in non-controlled studies, UVA1 was shown to induce improvement in patients with scleroderma, granuloma annulare and urticaria pigmentosa.

However, UVA1 is unable to penetrate pigmented skin at an effective level to activate matrix metalloproteinases (MMPs). The investigators' preliminary data show that high dose UVB (160 mJ/cm2) will penetrate pigmented skin and activate the cellular pathways necessary to stimulate MMPs. They postulate, therefore, that in pigmented skin, higher than usual UVB doses can improve these fibrosing skin conditions safely through collagenase-mediated removal of excess dermal collagen via activation of MMP pathways.

The purpose of this research project is to study the effectiveness of high dose UVB (290-320nm at up to 320mJ/cm2) irradiation for the treatment of skin conditions with altered dermal matrix in patients with increased skin pigmentation. These disorders include but are not limited to keloid (or hypertrophic scar), scleroderma, acne keloidalis nuchae, old burn scars, and granuloma annulare. Up to fifty patients with one of these diagnoses or related conditions will receive UVB irradiation up to 5 times per week, for 16 weeks.

Study Design

Study Type:

Interventional

Actual Enrollment :

33 participants

Allocation:

N/A

Intervention Model:

Single Group Assignment

Masking:

None (Open Label)

Primary Purpose:

Prevention

Official Title:

The Effectiveness of UVB Irradiation in the Treatment of Skin Conditions With Altered Dermal Matrix: An Open Pilot Study

Study Start Date :

Aug 1, 2002

Actual Primary Completion Date :

Jan 1, 2009

Actual Study Completion Date :

Jan 1, 2009

Arms and Interventions

Arm	Intervention/Treatment
Experimental: UVB Irradiation A dose of up to 320 mJ/cm2 from a UVB irradiation device will be administered at maximum 5 times per week for 16 weeks.	Procedure: UVB Irradiation A dose of up to 320 mJ/cm2 from a UVB irradiation device will be administered at maximum 5 times per week for 16 weeks.

Arm

Intervention/Treatment

Experimental: UVB Irradiation

A dose of up to 320 mJ/cm2 from a UVB irradiation device will be administered at maximum 5 times per week for 16 weeks.

Procedure: UVB Irradiation

A dose of up to 320 mJ/cm2 from a UVB irradiation device will be administered at maximum 5 times per week for 16 weeks.

Outcome Measures

Primary Outcome Measures

Improvement in appearance of keloids (hypertrophic scars), scleroderma, acne keloidalis nuchae,old burn scars, granuloma annulare, and related conditions with altered dermal matrix [Subjects will be evaluated at weeks 1, 2, 4, and then at monthly intervals until the end of the study.]

Secondary Outcome Measures

Assays to be performed on biopsy specimens may include any or all of the following assays: in situ hybridization, immunohistologic analysis, in situ zymography, radioimmunoassay, and Western blot analysis [Assays will be performed after specimen collection]
Photographs will also be taken. [At baseline and at end of the study.]

Eligibility Criteria

Criteria

Ages Eligible for Study:

10 Years to 80 Years

Sexes Eligible for Study:

All

Accepts Healthy Volunteers:

Inclusion Criteria:

In good general health and between 10-80 years of age.
Willing and able to receive UVB, as directed in the protocol; make evaluation visits; follow protocol restrictions; and sign a written, witnessed, informed consent form.
Have a clinical diagnosis of keloid, scleroderma, old burn scars, granuloma annulare, or acne keloidalis nuchae.
No disease states or physical conditions that would impair evaluation of the test site
Must live within a reasonable driving distance of Ann Arbor, Michigan, and/or be able to attend all of the scheduled appointments during the study.

Exclusion Criteria:

Have a history of photosensitivity (development of hives or bumps with exposure to light) or experience hypersensitivity in a UVB photo-provocation test.
Have participated in another investigational study in the past 4 weeks, taken oral therapy for skin condition, or on photosensitizing medications.
Pregnant, nursing, or planning to become pregnant during the study.