Photoirritation and Photoallergic Potential of a New Nicotine Patch

25 mg nicotine patch applied on the assigned marked site on the lower back or buttock. Induction (23 days): six treatment applications for 24 h. Challenge (five days): one treatment application for 24 h.

As a positive control, a placebo patch applied on the assigned marked site on the lower back or buttock. Induction (23 days): six treatment applications for 24 h. Challenge (five days): one treatment application for 24 h.

As a negative control, a marked site on the lower back or buttock was assigned as test area, but no patch was applied.

All three test sites exposed to UV radiation after patch removal. Induction: 10 J/cm2 UVA and 0.5 MED UVB, one treatment after first patch removal; and 3 MED UVB at the 5 following treatments. Challenge: 4 J/cm2 UVA and 0.5MED UVB, one treatment.( MED: Minimal Erythema Dose determined during screening)