Table 1. Children's Oncology Group (COG) Neuroblastoma Low-, Intermediate-, and High-Risk Group Assignment Schema Used for COG-9641 and COG-A3961 Studiesa
INPC = International Neuroblastoma Pathologic Classification; INSS = International Neuroblastoma Staging System.
a The COG-9641 and COG-A3961 trials established the current standard of care for neuroblastoma patients in terms of risk group assignment and treatment strategies.
b DNA Ploidy: DNA Index (DI) > 1 is favorable, = 1 is unfavorable; hypodiploid tumors (with DI < 1) will be treated as a tumor with a DI > 1 (DI < 1 [hypodiploid] to be considered favorable ploidy).
c INSS stage 2A/2B symptomatic patients with spinal cord compression, neurologic deficits, or other symptoms should be treated with immediate chemotherapy for four cycles.
d INSS stage 3 or stage 4 patients with clinical symptoms as listed above should receive immediate chemotherapy.
e INSS stage 4S infants with favorable biology and clinical symptoms should be treated with immediate chemotherapy until asymptomatic (2–4 cycles). Clinical symptoms include: respiratory distress with or without hepatomegaly or cord compression and neurologic deficit or inferior vena cava compression and renal ischemia; or genitourinary obstruction; or gastrointestinal obstruction and vomiting; or coagulopathy with significant clinical hemorrhage unresponsive to replacement therapy.
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February 25, 2014
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