The purpose of this study is to test the safety and efficacy of the investigational drug called Selpercatinib in children whose cancers have a specific genetic change (RET-fusion or RET-mutation). Selpercatinib has been FDA-approved for adults and pediatric patients 12 years of age or older for certain types of lung and thyroid cancers. Selpercatinib is administered in capsule form, liquid suspension, or may also be administered by a feeding tube for subjects who are unable to swallow.

CHOP and the Therapeutic Advances in Childhood Leukemia & Lymphoma (TACL) consortium is conducting a study for children and young adults 21 years old or younger who have relapsed or refractory acute lymphoblastic leukemia (ALL) or lymphoblastic lymphoma. This study adds the study drug 'Ixazomib' to standard relapsed ALL chemotherapy drugs. For more information about this study, including specific eligibility criteria, please visit clinicaltrials.gov and search for "NCT03817320" or visit the TACL website at https://tacl.chla.usc.edu/Tacl/#!/Page/3. To hear more about this and other available trails or get any questions answered please contact our Cancer Intake Specialist by phone at 267-426-0762 or email Oncointake@email.chop.edu.

This study has two parts. Part A enrolls patients who have been diagnosed with a solid tumor, lymphoma or desmoid tumor that has either come back ("relapsed") or does not respond to therapy ("is refractory"). Part B enrolls patients with a relapsed or refractory Ewing sarcoma, desmoid tumor, osteosarcoma, liver tumor, Wilms tumor, or tumors with changes in a gene family known as the Wnt pathway. This study involves taking a study drug called tegavivint. The study will be testing different doses of the study drug to find the safest dose.

This study enrolls patients that have been diagnosed with SMARCB1 or SMARCB4 deficient cancer that has either come back (relapsed) or does not respond to therapy (is refractory) or have been newly diagnosed with a SMARCB1 or SMARCB4 deficient cancer that has no known standard treatment. This study involves taking study drugs called tiragolumab and atezolizumab. These drugs are a type of immunotherapy that try to make the immune system fight cancer. The purpose of the study is to learn more about the safety of tiragolumab in children and to see how well the combination of tiragolumab and atezolizumab works when given to children and adults with these types of tumors. This study has two parts. In Part A, participants will receive tiragolumab. In Part B, participants will receive both tiragolumab and atezolizumab.