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Abstract
Background: Various combination therapies are used in refractory cutaneous T-cell lymphoma (CTCL). Although bexarotene has been studied in combination with psoralen photochemotherapy (PUVA), IFN-α and denileukin difitox, there have been no published data assessing the efficacy of the combination of bexarotene and methotrexate. Objective: To evaluate the efficacy and safety of an oral bexarotene and methotrexate combination for the treatment of refractory CTCL. Method: A retrospective study was carried out of 12 patients with refractory stage CTCL treated with an oral combination of bexarotene and methotrexate from 2000 to 2007. Results: Twelve patients with CTCL stage IA–IIB disease who received a combination of bexarotene and methotrexate were identified. The median dose of bexarotene was 150 mg/day (range 75–300 mg/day) and methotrexate 15 mg/week (range 5–30 mg/week). The duration of time to achieve an overall response was 6.5 months (range 3–11 months). The overall response occurred in 66% (8/12). One patient had complete response (CR = 8%) and seven had partial response (PR = 58%). Six of 12 patients progressed at some point during treatment and needed additional intervention. Tolerance to the treatment was good and commonly observed side effects were hyperlipidemia, elevated liver transaminases and a decreased white blood cell count. Limitations of the study included a restricted number of patients, relatively short evaluation times and retrospective analysis. Conclusion: An oral bexarotene and methotrexate combination may be a promising future alternative to monotherapy for the treatment of CTCL, but further studies are required.