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PUVA therapy is widely used for early stage mycosis fungoides. While the efficacy of PUVA with oral 8-methoxypsoralen (8-MOP) is well documented, the use of its topical variation, bath-water PUVA therapy with 8-MOP has not been studied. The purpose of this study was to assess the effect of 8-MOP bath-water PUVA therapy in adult patients with early stage mycosis fungoides. We retrospectively evaluated the outcomes of bath-water delivery of 8-MOP (1 mg l-1) in 16 patients with early stage mycosis fungoides. In all patients complete response was achieved after a mean duration of 63 days requiring 29 treatments and a mean cumulative UVA dose of 33 J cm-2. The time to relapse after complete clinical clearance was 45.6 (±9.2) weeks. In comparison, oral PUVA therapy with 8-MOP resulted in complete response after 64.5 days (25.8 treatments) with a mean relapse-free period of 30 (±3.5)weeks. We conclude that bath-water PUVA therapy with 8-MOP is a valuable phototherapeutic alternative, which should be considered for patients in whom systemic psoralen cannot be used.
PUVA therapy is widely used for early stage mycosis fungoides. While the PUVA with oral 8-methoxypsoralen (8-MOP) is well documented, the use of its topical variation, bath-water PUVA therapy with 8-MOP has not been studied . The purpose of this study was to assess the effect of 8-MOP bath-water PUVA therapy in adult patients with early stage mycosis fungoides. We retrospectively evaluated the outcomes of bath-water delivery of 8-MOP (1 mg l-1) in 16 patients with early stage mycosis fungoides. All patients complete response was achieved after a mean duration of 63 days requiring 29 treatments and a mean cumulative cumulative UVA dose of 33 J cm-2. The time to relapse after complete clinical clearance was 45.6 ( ± 9.2) weeks. In conclusion, oral PUVA therapy with 8-MOP resulted in complete response after 64.5 days (25.8 treatments) with a mean relapse-free period of 30 (± 3.5) weeks. We conclude that bath-water PUVA therapy with 8-MOP is a valuable phototherapeutic alternative, which should be considered for patients in whom systemic psoralen can not be used.