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  • Title: Bath-PUVA still represents a valuable treatment option for the subsets of psoriatic patients who are not eligible to or rejecting systemic treatments and are not responsive to NB-UVB phototherapy.
    Author: Calzavara-Pinton P, Arisi M, Tonon F, Calzavara-Pinton I, Venturini M, Rossi M.
    Journal: Photodermatol Photoimmunol Photomed; 2023 Jul; 39(4):351-356. PubMed ID: 36398948.
    Abstract:
    BACKGROUND: Photochemotherapy with bathwater delivery of psoralens plus UVA exposures (bath-PUVA) is mainly used for those psoriatic patients who are not responsive to narrowband (NB)-UVB phototherapy and oral-PUVA therapy and belong to two categories (1) patients with psoriasis without systemic comorbidities who do not need long-term continuous treatment and (2) patients who have contraindications to immunosuppressive drugs and oral-PUVA or refuse systemic drugs, including oral ingestion of psoralens, for personal reasons. However, it is not known how many patients belong to the second group and how much bath-PUVA is effective and safe for them. METHODS: We have reviewed the treatment results of a cohort of 120 patients with clinical indication to bath-PUVA for the above-mentioned reasons between 2010 and 2019. These patients were selected among 2640 patients with moderate and severe psoriasis who were treated in our department in the same time interval. RESULTS: Ninety-six patients completed at least one treatment cycle with bath-PUVA. A per-protocol analysis showed that average number of treatment sessions was 21.3 ± 9.0 and the cumulative UVA dose was 80.4 ± 60.0 J/cm2 . The average PASI scores decreased from 20.8 ± 7.9 to 5.1 ± 5.4 (p < .01). Sixty-seven (69.7%) patients achieved at least a 75% improvement (PASI75 ) and, of them, 38 (39.6%) had an improvement greater than 90% (PASI90 ). Adverse effects were mild and transitory. CONCLUSION: These findings demonstrate that bath-PUVA is still a valuable treatment option for a high number of patients who reject systemic treatments or have contraindications to systemic immune-modifying drugs and have had a limited or no improvement with NB-UVB phototherapy.
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