Safety and Efficacy Study of Combination Treatment With Excimer Laser, Clobex Spray, and Vectical Ointment in the Treatment of Psoriasis

This is a 12-week, open-label, pilot trial evaluating the efficacy and safety of the combination of Clobex® spray with excimer laser therapy as the initial treatment of generalized plaque psoriasis, followed by maintenance therapy with topical Vectical. The study will be conducted in three distinct periods, namely Period A, Period B, and Period C, each of 4 weeks duration. During Period A (weeks 1 through 4), patients will use Clobex® spray twice daily along with excimer laser treatments twice weekly with the Photomedex XTRAC® Velocity machine. The goal of Period A is to achieve Psoriasis Area Severity Index (PASI) 75 in 100% of patients within four weeks. During Period B (weeks 5 through 8), patients would be treated with topical Vectical® twice daily. Thus, there is a steroid-free interval during which patients will not be using Clobex® spray. The goal of Period B is to maintain the patient's response using only non-steroid options. During Period C of the study, patients will use Clobex® spray BID and Vectical® BID. Period C (weeks 9 through 12) will be a "booster" period in which the goal is to see if 100% of patients can achieve Psoriasis Area Severity Index (PASI) 90-100. Regarding excimer laser therapy: all patients will be receiving excimer laser therapy twice weekly for the first 6 weeks of the study (up to the halfway point) which is 12 excimer laser treatments. At that point, only those patients achieving \<Psoriasis Area Severity Index (PASI)75 response will continue to receive twice weekly excimer laser treatments for the remaining 6 weeks of the study.