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  • Title: Clinical features and treatment outcomes in patients with T-cell large granular lymphocytic leukemia: A single-institution experience.
    Author: Zhu Y, Gao Q, Hu J, Liu X, Guan D, Zhang F.
    Journal: Leuk Res; 2020 Mar; 90():106299. PubMed ID: 32035354.
    Abstract:
    AIM: Large granular lymphocyte leukemia (LGLL) is a rare lymphoproliferative disorder associated with failure of hematopoiesis and autoimmune diseases. This study describes the clinical features and treatment responses of 108 patients with T-cell large granular lymphocyte leukemia (T-LGLL). METHODS: Clinical data were collected from T-LGLL patients treated at an anemia treatment center within the hematology and blood diseases unit of a single hospital from January 2009 to April 2019. RESULTS: The majority of patients (78 %) were symptomatic at the time of presentation. Splenomegaly was observed in 41 % of cases, while hepatomegaly and lymphadenopathy were rare (6 % and 7 %, respectively). Cyclosporine (CsA) monotherapy was used as first-line therapy for 16 patients, with an overall response rate (ORR) of 56 %. CsA in combination with steroids was administered in 83 patients, with an ORR of 48 %. Among patients experiencing relapse or resistance to first-line therapy, 10 received antithymocyte globulin (ATG) therapy, with an ORR of 50 %; an additional 9 patients received a modified regimen of high-dose cyclophosphamide (CTX) therapy, yielding an ORR of 78 %. CONCLUSIONS: This study provides new information regarding the clinical features and therapeutic strategies for T-LGLL, which can be used to improve clinical decision making for T-LGLL patients. The data presented here indicate the CsA is an effective option for the treatment of T-LGLL, while modified regimens of high-dose CTX or ATG are safe and effective choices for patients with CsA refractory disease.
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