Secukinumab monotherapy successfully treated severe refractory type V (atypical juvenile) pityriasis rubra pilaris: A case report and literature review.

Pityriasis rubra pilaris (PRP) is a rare heterogeneous group of papulosquamous inflammatory disorders with unknown etiology. PRP is often resistant to many conventional therapies which has made more challenging on treatment. More recently, several studies have shown encouraging clinical results of secukinumab in the treatment of PRP in adult, but no studies have explored its effects in children. We herein report a 7-year-old boy with severe type V PRP responded rapidly to secukinumab monotherapy (150 mg once weekly) when conventional therapies have failed. The patient showed rapid and dramatic improvement of erythema, palmoplantar hyperkeratosis, scaling, and itching within only 5 weeks, with no adverse effects. Secukinumab could be considered as a treatment option for refractory PRP in children, as recently reported in adult.