Tailored cancer cocktail tested for tough childhood tumor

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Aged ≥1 years to ≤ 21 years * Relapsed or refractory neuroblastoma * A sufficient interval between the last dose of prior anti-cancer therapy (including cytotoxic and biological therapies) and enrollment in this study, to allow recovery from the acute toxic effects of all prior anti-cancer therapy. Please contact site for specific details * Adequate bone marrow function (bone marrow may be involved with tumor. Contact site for specific details) * Adequate renal function, defined as Creatinine clearance or radioisotope glomerular filtration rate (GFR) ≥ 70 mL/min/1.73 m2 OR serum creatinine based on age/gender normal (contact site for details) * Adequate liver function, defined as total serum bilirubin ≤ 1.5 times the upper limit of normal AND alanine transaminase (ALT) ≤ 110 U/L. * Adequate cardiac function, defined as corrected QT interval (QTc) ≤ 480 msec AND shortening fraction \> 27% * Males and females who are sexually active must agree to use effective contraception during and for 3 months after treatment Exclusion Criteria: * Subjects taking certain drugs or herbal medications that impact drug metabolism and/or cardiac function that cannot be discontinued (contact site for details). * Subjects with concurrent severe and/or uncontrolled concurrent medical conditions that could compromise participation in the study (contact site for details) * Other concomitant therapies: * Corticosteroids initiated for tumor therapy within 7 days prior to study enrollment * Other anti-cancer agents * Other investigational drugs * Hematological growth factors * Radiation therapy * Subjects \< 0.5m2 * Pregnant or lactating females * Sexually active males unless they use a condom during intercourse while taking study drug/s and for 3 months after study drug discontinuation and thus do not attempt to father a child in this period.