Transplantation proceedings · 2019
Successful Treatment of Chronic Myeloid Leukemia With Dasatinib After Kidney Transplantation: A Case Report.
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Yamane Hiroaki, Ide Kentaro, Tanaka Asuka, Hashimoto Shinji, Nagoshi Hisao, Tahara Hiroyuki, Ohira Masahiro, Seidakhmetov Akhmet, Marlen Doskali, Tanaka Yuka, Ohdan Hideki
Аннотация
OBJECTIVE: Chronic myeloid leukemia (CML) is a rare malignancy in kidney transplant (KT) recipients. Although dasatinib is the first-line treatment for CML, it has inhibitory activity against CYP3A4; this might increase the blood concentration of tacrolimus (administered to KT patients for immune suppression). Furthermore, tacrolimus can also increase blood concentrations of dasatinib through P-glycoprotein inhibition.
METHODS: Here, we report a case of sustained molecular remission of CML with prolonged first-line dasatinib therapy in a KT recipient being treated with tacrolimus. A 61-year-old woman developed CML-chronic phase (CML-CP) 38 months post KT. Her maintenance immunosuppressive therapy consisted of tacrolimus, mycophenolate mofetil, and methylprednisolone. Considering the potential drug interaction with tacrolimus, dasatinib was administered at a low dose of 50 mg/day. Her immune status was evaluated regularly by assessing the mixed lymphocyte reaction (MLR) using an intracellular carboxyfluorescein diacetate succinimidyl ester (CFSE)-labeling technique; immunosuppressive therapy was adjusted accordingly.
RESULTS: The patient achieved complete hematologic remission (CHR) after 1 month of dasatinib treatment. Six months after dasatinib treatment, she achieved a major molecular response. During the observation period, neither antibody-mediated nor acute cellular rejection were encountered in the patient. She remained in CHR with a major molecular response 12 months after the diagnosis of CML-CP.
CONCLUSION: Data obtained from immune monitoring assays using CFSE-MLR helped us to successfully manage a KT recipient with CML-CP being treated with dasatinib. Drug-drug interactions are a key consideration while designing treatment regimens; such strategies would ensure that drug-drug interactions do not negatively affect the treatment outcomes.
METHODS: Here, we report a case of sustained molecular remission of CML with prolonged first-line dasatinib therapy in a KT recipient being treated with tacrolimus. A 61-year-old woman developed CML-chronic phase (CML-CP) 38 months post KT. Her maintenance immunosuppressive therapy consisted of tacrolimus, mycophenolate mofetil, and methylprednisolone. Considering the potential drug interaction with tacrolimus, dasatinib was administered at a low dose of 50 mg/day. Her immune status was evaluated regularly by assessing the mixed lymphocyte reaction (MLR) using an intracellular carboxyfluorescein diacetate succinimidyl ester (CFSE)-labeling technique; immunosuppressive therapy was adjusted accordingly.
RESULTS: The patient achieved complete hematologic remission (CHR) after 1 month of dasatinib treatment. Six months after dasatinib treatment, she achieved a major molecular response. During the observation period, neither antibody-mediated nor acute cellular rejection were encountered in the patient. She remained in CHR with a major molecular response 12 months after the diagnosis of CML-CP.
CONCLUSION: Data obtained from immune monitoring assays using CFSE-MLR helped us to successfully manage a KT recipient with CML-CP being treated with dasatinib. Drug-drug interactions are a key consideration while designing treatment regimens; such strategies would ensure that drug-drug interactions do not negatively affect the treatment outcomes.