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Tacrolimus (formerly FK 506) is an immunosuppressive drug that works by inhibiting calcineurin, a calcium-dependent protein phosphatase required for immune function. Tacrolimus has been shown to be effective topically in atopic dermatitis and systemically in psoriasis and graft-vs-host disease (GVHD). However, its efficacy in treating cutaneous GVHD when applied topically has not been reported.
To assess the therapeutic efficacy of 0.1% tacrolimus ointment on chronic cutaneous GVHD in patients with symptoms refractory to systemic corticosteroid therapy.
Tacrolimus ointment effectively treated pruritus and/or erythema in 13 (72%) of 18 patients with chronic GVHD. Responding patients had a rapid effect within several hours to days. Effectiveness was measured by means of patient report, results of physical examination, side-by-side comparisons of tacrolimus vs a vehicle control, and temporal flares of the cutaneous symptoms of the disease in the context of stopping tacrolimus ointment therapy. Because of the progression of GVHD and in 2 cases, loss of drug efficacy, all patients eventually went on to receive more aggressive treatment, including increases in steroid dosage, psoralen–UV-A therapy, and extracorporeal photopheresis.
This case series suggests that tacrolimus ointment has efficacy in treating the erythema and pruritus of steroid-refractory, chronic cutaneous GVHD in most patients. The rapid response of tacrolimus ointment may provide a useful therapeutic bridge to systemic therapies that have slower onset, such as psoralen–UV-A therapy or extracorporeal photopheresis.
Choi CJ, Nghiem P. Tacrolimus Ointment in the Treatment of Chronic Cutaneous Graft-vs-Host Disease: A Case Series of 18 Patients. Arch Dermatol. 2001;137(9):1202–1206. doi:10.1001/archderm.137.9.1202
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