- Patient must have enrolled onto APEC1621SC and must have been given a treatment assignment to Molecular Analysis for Therapy Choice (MATCH) to APEC1621D based on the presence of an actionable mutation; note that treatment assignment may be to primary cohort A for patients with TSC1 or TSC2 loss of function mutations, primary cohort B for patients with other PI3K/MTOR pathway mutations, a histology specific biomarker positive expansion cohort if the criteria to open such a cohort are met, or a biomarker negative expansion cohort if the criteria to open such a cohort are met