Response of metastatic recurrent neuroblastoma to nitisinone: A modulator of tyrosine metabolism
Copyright policy )Response of metastatic recurrent neuroblastoma to nitisinone: A modulator of tyrosine metabolism
AbstractNitisinone blocks the tyrosine pathway and may be effective in treating neuroblastoma. A 33‐month‐old male with heavily treated metastatic, recurrent, N‐MYC amplified neuroblastoma received nitsinone (0.8 mg/kg/day escalated to 5.0 mg/kg/day). Dramatic tumor regression and resolution of pain without toxicity were observed. At 10 weeks, the tumor progressed. Nitisinone, low dose cyclophosphamide and doxorubicin subsequently produced a very good partial response. At 18 months the disease progressed. The child succumbed 21 months after starting nitisinone. Nitisinone produced an increase in tyrosine and catecholamine metabolite (HVA, VMA, and metanephrines) levels. Nitisinone may be a promising agent in metastatic neuroblastoma. Pediatr Blood Cancer 2006, 46:517–520. © 2005 Wiley‐Liss, Inc.
- University of South Dakota United States
Male, Dose-Response Relationship, Drug, Cyclohexanones, Remission Induction, Antineoplastic Agents, Combined Modality Therapy, Drug Administration Schedule, Neuroblastoma, Fatal Outcome, Treatment Outcome, Child, Preschool, Nitrobenzoates, Antineoplastic Combined Chemotherapy Protocols, Disease Progression, Humans, Tyrosine, Enzyme Inhibitors, Neoplasm Recurrence, Local
Male, Dose-Response Relationship, Drug, Cyclohexanones, Remission Induction, Antineoplastic Agents, Combined Modality Therapy, Drug Administration Schedule, Neuroblastoma, Fatal Outcome, Treatment Outcome, Child, Preschool, Nitrobenzoates, Antineoplastic Combined Chemotherapy Protocols, Disease Progression, Humans, Tyrosine, Enzyme Inhibitors, Neoplasm Recurrence, Local
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