Safety and Efficacy of Ponatinib for Treatment of Pediatric Recurrent or Refractory Leukemias, Lymphomas or Solid Tumors

Inclusion Criteria: Histologically or cytologically confirmed diagnosis of the following malignancies: \- Phase 1: CP-CML, BP-CML, AP-CML ALL. AML. Other leukemias. Lymphoma. Any other tumors, including tumors of the CNS, for which standard therapy is not available or is not indicated. \- Phase 2, Group A with CP-CML: CP-CML at the time of study entry and must be resistant to or intolerant of at least 1 prior BCR-ABL-targeted TKI therapy or be in "warning" response status or have the T315I kinase domain mutation. Must have 1 bone marrow aspirate with documentation of BCR-ABL translocation by conventional cytogenetics, metaphase FISH, or q-PCR performed within 42 days before the first dose of ponatinib. \- Phase 2, Group B with other leukemias or solid tumors: ALL. AML. Other leukemias. Lymphoma. Any other tumors, including tumors of the CNS, with mutations of RET, FLT3, KIT, FGFR, PDGFR, TIE2, VEGFR, or any other mutations where ponatinib may have biological activity (eg, EPH receptors and SRC families of kinases) as assessed on fresh or archived tumor tissue. Participants with solid tumors or with lymphoma must have measurable disease by CT or MRI based on RECIST v1.1 or the Lugano lymphoma guidelines as determined by site radiology. Prior therapies as follows: \- Phase 1: Participants with CML who are resistant to or intolerant of (as defined Appendix F) to at least 1 prior BCR-ABL-targeted TKI therapy. Participants with ALL who have progressed on or after all avai…