Profound molecular response with ponatinib in chronic phase of chronic myeloid leukemia with resistance to imatinib and dasatinib: Case report and review of the literature

We report the case of a woman who at the age of 54 years was diagnosed with chronic myeloid leukemia in chronic phase; she began treatment with a first-generation tyrosine kinase inhibitor, and evidenced failure due to the absence of a hematological and cytogenetic response. Despite changing treatme...

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Detalles Bibliográficos
Autores: Díaz, Carol, Zapata, Carlos
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:Perú
Institución:Universidad Peruana Cayetano Heredia
Repositorio:Revistas - Universidad Peruana Cayetano Heredia
Idioma:español
OAI Identifier:oai:revistas.upch.edu.pe:article/4247
Acceso en línea:https://revistas.upch.edu.pe/index.php/RMH/article/view/4247
Access Level:acceso abierto
Palabra clave:Leucemia mielógena crónica BCR-ABL positiva
proteínas tirosina quinasas
cromosoma Filadelfia
BCR-ABL positive chronic myelogenous leukemia
Protein Tyrosine Kinases
hiladelphia Chromosome
Descripción
Sumario:We report the case of a woman who at the age of 54 years was diagnosed with chronic myeloid leukemia in chronic phase; she began treatment with a first-generation tyrosine kinase inhibitor, and evidenced failure due to the absence of a hematological and cytogenetic response. Despite changing treatment to a second-generation tyrosine kinase inhibitor (dasatinib), it was not possible to achieve optimal levels of response, documenting positivity for the T315I mutation in the ABL domain of the deregulated BCR/ABL tyrosine kinase, compared to ponatinib, the only drug that shows activity. After starting treatment with ponatinib, optimal levels of cytogenetic and molecular response were evidenced, as well as an adequate quality of life for the patient.