No dose-limiting toxicities with single-agent dalotuzumab.
Pharmacokinetic data were similar to previous data reported in adults.
No pharmacokinetic interactions for combination of dalotuzumab and ridaforolimus.
Dalotuzumab and ridaforolimus warrant further evaluation in paediatric patients.
An objective response to dalotuzumab was observed in one patient with Ewing sarcoma.