Our Experiences with Asparaginase Activity Measurements in Children with Lymphoblastic Diseases

Background: Asparaginase is a key component of chemotherapy protocols for the treatment of lymphoblastic malignancies among children. Adequate asparagine depletion is an important factor to achieve optimal therapeutic outcomes. Methods: Over a 3.5 year period, 106 patients were monitored for asparag...

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Detalles Bibliográficos
Autores principales: Müller, Judit, Egyed, Petra, Erdelyi, Daniel, Kovacs, Krisztian, Mudra, Katalin, Szabo, Sandor, Egyed, Balint, Gabor, Kovacs
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Brief Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10378469/
https://www.ncbi.nlm.nih.gov/pubmed/37508657
http://dx.doi.org/10.3390/children10071160
Descripción
Sumario:Background: Asparaginase is a key component of chemotherapy protocols for the treatment of lymphoblastic malignancies among children. Adequate asparagine depletion is an important factor to achieve optimal therapeutic outcomes. Methods: Over a 3.5 year period, 106 patients were monitored for asparaginase activity (329 samples) in a single center of the Hungarian Pediatric Oncology–Hematology Group. In Hungary, three asparaginase products are available: native E. coli ASNase (Kidrolase), a pegylated form of this enzyme (Pegaspargase) and another native product from Erwinia chrysanthemi (Erwinase). A retrospective data analysis was performed. Results: In 81% (268/329) of our patients, AEA levels were in the optimal therapeutic range of over 100 IU/L. Of 106 patients, 13 (12%) were diagnosed with ‘silent inactivation’. Conclusions: Monitoring of AEA can help to identify patients with ‘silent inactivation’ and their asparaginase therapy can thus be optimized.

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