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Br J Dermatol. 2011 Jun;164(6):1383-6. doi: 10.1111/j.1365-2133.2011.10358.x.

Etanercept plus narrowband ultraviolet B phototherapy of psoriasis is more effective than etanercept monotherapy at 6 weeks.

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Department of Dermatology, Ruhr-University Bochum, 44791 Bochum, Germany.



A substantial portion of patients with psoriasis does not achieve a satisfactory response under antitumour necrosis factor (TNF)-α biological therapies.


We aimed to evaluate whether etanercept plus narrowband ultraviolet B (NB-UVB) phototherapy is superior to etanercept monotherapy in the management of psoriasis.


In this prospective study, patients with psoriasis were treated with etanercept 25 mg twice weekly. Two marker lesions were selected for determination of the modified Psoriasis Area and Severity Index (M-PASI). NB-UVB was administered thrice weekly whereby one marker lesion was covered as nonirradiated control. Skin biopsies for histology and immunohistochemistry were performed in both marker lesions after a 6-week treatment course.


After 6 weeks of therapy, the relative M-PASI reduction (mean ± SD) in etanercept-treated sites (53·7 ± 36·9%) was significantly lower than the reduction in etanercept plus NB-UVB-treated lesions (64 ± 27·8%; P = 0·011). At the end of treatment, histology scores of etanercept-treated psoriatic plaques were significantly higher than scores of etanercept plus NB-UVB-treated sites (4·6 ± 2·7 vs. 3·7 ± 2·4; P =0·045). Epidermal immunoreactivity for CD1a, CD4 and CD8 was significantly lower in etanercept plus NB-UVB-treated lesions when compared with etanercept monotherapy.


Etanercept combined with NB-UVB is more effective than etanercept monotherapy at 6 weeks as demonstrated at a clinical, histological and immunohistological level. However, as there is an increased risk for malignancy by treatment with TNF-α blockers alone or in combination with phototherapy, we recommend to restrict this highly effective combination to short periods of time, for instance to obtain a quicker response, and to avoid long-term treatment.

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