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1.
Target Oncol ; 18(6): 885-892, 2023 Nov.
Article in English | MEDLINE | ID: mdl-37747623

ABSTRACT

BACKGROUND: Daratumumab, an anti-CD38 monoclonal antibody, is used for treatment of multiple myeloma (MM) and light chain amyloidosis at an intravenous dosage of 16 mg/kg or at a subcutaneous fixed dose of 1800 mg. However, the subcutaneous formulation has only recently been approved in Europe, and real-life data on its safety are still few. OBJECTIVE: In this multicenter retrospective real-life experience, we provided evidence for the safety of subcutaneous daratumumab in plasma cell disorders. PATIENTS AND METHODS: A total of 189 patients diagnosed with MM or light chain amyloidosis were included in this retrospective study, and all subjects were daratumumab-naïve. Primary endpoint was safety of subcutaneous daratumumab, especially for infusion-related reaction (IRR) incidence and severity. All patients received premedication with dexamethasone, paracetamol, and antihistamine, with montelukast usage in 85% of cases. RESULTS: Eight patients (4%) experienced IRRs, mainly of grade I-II, and other frequent toxicities were: hematological (thrombocytopenia, 4%; neutropenia, 5%; lymphopenia, 6%) and non-hematological (pneumonia, 4%; diarrhea, 2%; and cytomegalovirus reactivation, 0.5%). In our multicenter retrospective real-life experience, subcutaneous daratumumab was well-tolerated with an excellent safety profile with a very low (4%) IRR incidence, even in frailer MM patients with severe renal impairment or increased body weight. CONCLUSIONS: Subcutaneous daratumumab was safe in a real-life setting including patients with severe renal failure and advanced disease. However, further studies on larger and prospective cohorts are required to confirm our real-life observations.


Subject(s)
Amyloidosis , Antineoplastic Agents , Multiple Myeloma , Humans , Retrospective Studies , Plasma Cells , Prospective Studies , Antineoplastic Agents/therapeutic use , Multiple Myeloma/drug therapy , Antibodies, Monoclonal/pharmacology , Antibodies, Monoclonal/therapeutic use , Amyloidosis/drug therapy , Antineoplastic Combined Chemotherapy Protocols/therapeutic use
2.
J Med Imaging Radiat Sci ; 54(3): 562-565, 2023 09.
Article in English | MEDLINE | ID: mdl-37453857

ABSTRACT

Multiple Myeloma (MM) is the most common primary osseous malignancy in adults, and it mainly affects men aged between 50 and 70 years. Although rare, central nervous system (CNS) involvement in MM is possible, and it has very poor prognosis. Therefore, fast and accurate diagnosis of CNS manifestation of MM is paramount. Here we describe a case of sphenoid bone localization in a patient with highly aggressive and refractory MM.


Subject(s)
Multiple Myeloma , Male , Adult , Humans , Middle Aged , Aged , Multiple Myeloma/diagnostic imaging , Multiple Myeloma/pathology , Magnetic Resonance Imaging , Prognosis , Tomography, X-Ray Computed , Sphenoid Bone/diagnostic imaging , Sphenoid Bone/pathology
3.
Leuk Res ; 49: 98-101, 2016 10.
Article in English | MEDLINE | ID: mdl-27619200

ABSTRACT

Multiple myeloma patients may develop extraosseous involvement in the course of the disease making prognosis very poor and new drugs clearly needed. The PD-1/PD-L1 axis has emerged as a master immune checkpoint in antitumor responses and recent studies investigated the role of PD-L1 in multiple myeloma cells; no data however are still available about PD-L1 expression in extramedullary localizations. We demonstrate PD-L1 expression in 4/12 cases of extraosseous myeloma suggesting that these lesions represent a specialized microenvironment. We found presence of PD-1+ infiltrating lymphocytes in all observed cases supporting the relevance of PD-1/PD-L1 checkpoint in extramedullary myeloma. We also investigated the correlation in PD1/PD-L1 staining between marrow staining and EMP lesions.


Subject(s)
B7-H1 Antigen/analysis , Multiple Myeloma/pathology , Programmed Cell Death 1 Receptor/analysis , Adult , Aged , Bone Marrow Examination , Gene Expression , Humans , Immunohistochemistry , Leukemic Infiltration/pathology , Middle Aged
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