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Τετάρτη 26 Ιουλίου 2017

Oral bexarotene for post-transplant cutaneous T-cell lymphoma

Abstract

Organ transplant recipients receiving immunosuppression have an increased risk of developing post-transplant lymphoproliferative diseases (PTLDs). Traditionally, PTLDs refer to Epstein-Barr virus (EBV)-induced B-cell lymphoma. However, post-transplant T-cell lymphoma may also occur and tends to have a poorer response to reduced immunosuppressive therapy. As such, additional therapy is often needed for post-transplant T-cell lymphoma, including post-transplant cutaneous T-cell lymphoma (PT-CTCL). We present only the third case of PT-CTCL occurring after liver transplantation. The patient was diagnosed with stage IB mycosis fungoides (MF). His lesions were refractory to multiple skin-directed therapies, and so he was given oral bexarotene 150 mg daily and his oral tacrolimus dose was decreased to 2 mg daily. Remarkably, his MF patches have demonstrated a complete response to oral bexarotene 75 mg daily without recurrence over 11 years of follow-up. He developed hypertriglyceridemia with bexarotene 150 mg, so his dose was decreased to 75 mg, without loss of response. Our report is the second to describe PT-CTCL demonstrating a long-term complete response to oral bexarotene. Given its anti-carcinogenic properties and favorable toxicity profile, oral bexarotene represents an appealing treatment option for PT-CTCL refractory to skin-directed therapies.



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