RecruitingDrug trialAPG-115 Alone or in Combination With APG-2575 in Recurrent or Refractory Neuroblastoma or Solid TumorsAn open, non-randomized Phase Ib-II trial of dose-escalation and cohorts expansion to evaluate the safety, pharmacokinetic profile and initial efficacy of APG-115 alone or in combination with APG-2575 in the treatment of recurrent or refractory neuroblastoma or solid tumors.