Study: NCT01115322

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Tazarotene Foam without irradiation
Description: Each subject will be exposed to a patch with tazarotene foam during a single, 24 hour application period.~This patch will then be removed and those sites will serve as nonirradiated control. Patch sites will be evaluated for signs of inflammatory skin responses (eg, erythema and local skin reactions) and superficial effects 1 ±0.25 hour after patch removal, and during follow-up visits at 24 ±1 hours, 48 ±2 hours, and 72 ±2 hours after patch removal.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Tazarotene Foam with UVA and UVB irradiation
Description: Each subject will be exposed to a patch with tazarotene foam during a single, 24 hour application period. The patch will be removed and that site will be exposed to ultraviolet A (UVA) and to UVA/ultraviolet B (UVB) radiation wavelengths (UV only).~Patch sites will be evaluated for signs of inflammatory skin responses (eg, erythema and local skin reactions) and superficial effects 1 ±0.25 hour after patch removal, and during follow-up visits at 24 ±1 hours, 48 ±2 hours, and 72 ±2 hours after patch removal.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Tazarotene Foam with UVA, UVB, and visible light
Description: Each subject will be exposed to a patch with tazarotene foam during a single, 24 hour application period. The patch will be removed and that site will be exposed to UVA, UVA/UVB, and visible light (VIS) wavelengths (UV plus VIS).~Patch sites will be evaluated for signs of inflammatory skin responses (eg, erythema and local skin reactions) and superficial effects 1 ±0.25 hour after patch removal, and during follow-up visits at 24 ±1 hours, 48 ±2 hours, and 72 ±2 hours after patch removal.

Intervention type: DRUG
Group type: PLACEBO_COMPARATOR
Intervention: Vehicle Foam without irradiation
Description: Each subject will be exposed to a patch with vehicle foam during a single, 24 hour application period. This patch will then be removed and those sites will serve as nonirradiated control. Patch sites will be evaluated for signs of inflammatory skin responses (eg, erythema and local skin reactions) and superficial effects 1 ±0.25 hour after patch removal, and during follow-up visits at 24 ±1 hours, 48 ±2 hours, and 72 ±2 hours after patch removal.

Intervention type: DRUG
Group type: PLACEBO_COMPARATOR
Intervention: Vehicle Foam with UVA and UVB irradiation
Description: Each subject will be exposed to a patch with vehicle foam during a single, 24 hour application period. The patch will be removed and that site will be exposed to ultraviolet A (UVA) and to UVA/ultraviolet B (UVB) radiation wavelengths (UV only).~Patch sites will be evaluated for signs of inflammatory skin responses (eg, erythema and local skin reactions) and superficial effects 1 ±0.25 hour after patch removal, and during follow-up visits at 24 ±1 hours, 48 ±2 hours, and 72 ±2 hours after patch removal.

Intervention type: DRUG
Group type: PLACEBO_COMPARATOR
Intervention: Vehicle Foam with UVA and UVB and visible light irradiation
Description: Each subject will be exposed to a patch with vehicle foam during a single, 24 hour application period. The patch will be removed and that site will be exposed to UVA, UVA/UVB, and visible light (VIS) wavelengths (UV plus VIS).~Patch sites will be evaluated for signs of inflammatory skin responses (eg, erythema and local skin reactions) and superficial effects 1 ±0.25 hour after patch removal, and during follow-up visits at 24 ±1 hours, 48 ±2 hours, and 72 ±2 hours after patch removal.

Intervention type: DRUG
Group type: SHAM_COMPARATOR
Intervention: No Treatment without irradiation
Description: Each subject will be exposed to a blank patch during a single, 24 hour application period. This patch will then be removed and those sites will serve as nonirradiated control. Patch sites will be evaluated for signs of inflammatory skin responses (eg, erythema and local skin reactions) and superficial effects 1 ±0.25 hour after patch removal, and during follow-up visits at 24 ±1 hours, 48 ±2 hours, and 72 ±2 hours after patch removal.

Intervention type: DRUG
Group type: SHAM_COMPARATOR
Intervention: No Treatment with UVA and UVB irradiation
Description: Each subject will be exposed to a blank patch during a single, 24 hour application period. The patch will be removed and that site will be exposed to ultraviolet A (UVA) and to UVA/ultraviolet B (UVB) radiation wavelengths (UV only).~Patch sites will be evaluated for signs of inflammatory skin responses (eg, erythema and local skin reactions) and superficial effects 1 ±0.25 hour after patch removal, and during follow-up visits at 24 ±1 hours, 48 ±2 hours, and 72 ±2 hours after patch removal.