Clinical lymphoma, myeloma & leukemia · 2023
Toxicity of a Modified PEG-Asparaginase-Based SMILE Regimen Is Comparable to L-Asparaginase-Based SMILE in a Non-Asian Population.
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Azem Amin, Caddell Ryan, Nelson Rebecca, Isenalumhe Leidy, Gaballa Sameh, Chavez Julio, Bello Celeste, Pinilla Javier, Sokol Lubomir, Shah Bijal, Saeed Hayder
Аннотация
INTRODUCTION: L-asparaginase-based chemotherapy regimens are effective for treating chemotherapy-resistant natural killer- (NK-) cell neoplasms. To treat these lymphoma subtypes in Asia, where NK/T-cell lymphomas are more prevalent, the NK-Cell Tumor Study Group developed the SMILE regimen, which includes a steroid, methotrexate, ifosfamide, L-asparaginase, and etoposide. In the US however, the only commercially available form of asparaginase is the pegylated form (PEG-asparaginase) which has been incorporated into a modified SMILE (mSMILE). We sought to study the toxicity associated with replacing L-asparaginase with PEG-asparaginase in mSMILE.
PATIENTS AND METHODS: We retrospectively identified all adult patients treated with the mSMILE chemotherapy regimen in our database at Moffitt Cancer Center (MCC) between December 1, 2009, and July 30, 2021. Patients were included if they were treated with mSMILE irrespective of their underlying diagnosis. Toxicity was assessed using Common Terminology Criteria for Adverse Events (CTCAE) version 5. The rate of toxicity in our mSMILE treatment group was numerically compared to data published in a metanalysis of the SMILE regimen's toxicity (Pokrovsky et al., 2019).
RESULTS: A total of 21 patients were treated with mSMILE at MCC during the 12-year analysis window. Compared to patients receiving the L-asparaginase-based SMILE, patients receiving mSMILE experienced grade 3 or 4 leukopenia less often, with a toxicity rate of 62% (median with SMILE, 85% [95% CI, 74%-95%]); thrombocytopenia, however, was more common, with a toxicity rate of 57% (median with SMILE, 48% [95% CI, 40%-55%]). Other hematological, hepatic and coagulation related toxicities were also reported.
CONCLUSION: In a non-Asian population, the mSMILE regimen with PEG-asparaginase is a safe alternative to the L-asparaginase-based SMILE regimen. There is a comparable risk of hematological toxicity, and no treatment-related mortality was seen in our population.
PATIENTS AND METHODS: We retrospectively identified all adult patients treated with the mSMILE chemotherapy regimen in our database at Moffitt Cancer Center (MCC) between December 1, 2009, and July 30, 2021. Patients were included if they were treated with mSMILE irrespective of their underlying diagnosis. Toxicity was assessed using Common Terminology Criteria for Adverse Events (CTCAE) version 5. The rate of toxicity in our mSMILE treatment group was numerically compared to data published in a metanalysis of the SMILE regimen's toxicity (Pokrovsky et al., 2019).
RESULTS: A total of 21 patients were treated with mSMILE at MCC during the 12-year analysis window. Compared to patients receiving the L-asparaginase-based SMILE, patients receiving mSMILE experienced grade 3 or 4 leukopenia less often, with a toxicity rate of 62% (median with SMILE, 85% [95% CI, 74%-95%]); thrombocytopenia, however, was more common, with a toxicity rate of 57% (median with SMILE, 48% [95% CI, 40%-55%]). Other hematological, hepatic and coagulation related toxicities were also reported.
CONCLUSION: In a non-Asian population, the mSMILE regimen with PEG-asparaginase is a safe alternative to the L-asparaginase-based SMILE regimen. There is a comparable risk of hematological toxicity, and no treatment-related mortality was seen in our population.