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The relationship between PARP inhibitors with the relapse and leukemisation of lymphomas: a case report.
AME Case Reports 2023
BACKGROUND: Nowadays the poly-ADP ribose polymerase inhibitors (iPARPs) are the mainly treatment for the ovarian cancer and other solid tumours. However, given its recent use, long-term toxicity is still under study. The occurrence of acute leukaemias and myelodysplastic syndromes (MDS) secondarily to iPARPs is known (0.5-1%).
CASE DESCRIPTION: We present the case of a 78-year-old patient with a serous carcinoma of ovary in maintenance treatment with Niraparib after response to platinum. Along with the ovarian carcinoma the patient developed a diffuse large cell B lymphoma (DLBCL) five years ago, treated with R-CHOP (Rituximab, Cyclophosphamide, Doxorubicin, Vincristine, Prednisolone) with complete response. The patient was evaluated in the emergency due to constitutional syndrome, objectifying a bicytopenia (platelets 28,000/mcL, haemoglobin 9.6 g/dL). In the study of bicytopenia, a bone marrow infiltration by high-grade B lymphoma was diagnosed.
CONCLUSIONS: The action of iPARPs on the selection of acquired mutations in clonal haematopoiesis maybe have been able to accelerate the process of relapse and leukemisation of the previous lymphoma. The association of treatment with iPARPs and the development of lymphomas is key for increasing knowledge of the safety profiles these drugs.
CASE DESCRIPTION: We present the case of a 78-year-old patient with a serous carcinoma of ovary in maintenance treatment with Niraparib after response to platinum. Along with the ovarian carcinoma the patient developed a diffuse large cell B lymphoma (DLBCL) five years ago, treated with R-CHOP (Rituximab, Cyclophosphamide, Doxorubicin, Vincristine, Prednisolone) with complete response. The patient was evaluated in the emergency due to constitutional syndrome, objectifying a bicytopenia (platelets 28,000/mcL, haemoglobin 9.6 g/dL). In the study of bicytopenia, a bone marrow infiltration by high-grade B lymphoma was diagnosed.
CONCLUSIONS: The action of iPARPs on the selection of acquired mutations in clonal haematopoiesis maybe have been able to accelerate the process of relapse and leukemisation of the previous lymphoma. The association of treatment with iPARPs and the development of lymphomas is key for increasing knowledge of the safety profiles these drugs.
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