Cabozantinib in Combination With 13-cis-Retinoic Acid in Children With Relapsed or Refractory Solid Tumors

Cabozantinib will be given orally once every day with cycles repeated every 4 weeks (28 days, +/- 3 days), with no rest periods between cycles

13-cis-retinoic acid at 80mg/m2/dose twice daily for two consecutive weeks (14 days) out of every four weeks (28 days, +/- 3 days).