Magnesium >= LLN Magnesium >= LLN within days before the first dose of cabozantinib Magnesium >= LLN Documented within days of registration: Magnesium: >= . mmol/L Serum potassium and magnesium greater than the institutional LLN. Magnesium within normal range (supplementation is allowed) Magnesium WNL Magnesium > . and < . mg/dL. Magnesium WNL Magnesium > LLN or correctable with supplements prior to first dose of study medication Serum magnesium >= ILLN Magnesium >= . mg/dL Serum magnesium >= LLN Magnesium before the first dose of ceritinib Serum magnesium >= LLN Magnesium level between .-. mg Normal magnesium (can be on oral supplementation) Magnesium (triplet combination only) >= . mg/dL Magnesium >= LLN =< days prior to registration\r\n* NOTE: Supplementation may be given before the first dose of study medication Within days prior to registration: Magnesium within institutions normal range The following assessments are required within days prior to registration: sodium (Na), potassium (K), chlorine (Cl), glucose, calcium (Ca), magnesium (Mg), and albumin; note: patients with an initial magnesium < . mmol/L (. mg/dl) may receive corrective magnesium supplementation but should continue to receive either prophylactic weekly infusion of magnesium and/or oral magnesium supplementation (e.g., magnesium oxide) at the investigators discretion The following assessments are required within days prior to registration: sodium (Na), potassium (K), chloride (Cl), glucose, calcium (Ca), magnesium (Mg), and albumin; Note: patients with an initial magnesium < . mmol/L (. mg/dl) may receive corrective magnesium supplementation but should continue to receive either prophylactic weekly infusion of magnesium and/or oral magnesium supplementation (e.g., magnesium oxide) at the investigators discretion Serum magnesium within normal limits Serum magnesium within normal range (patients may receive magnesium supplementation to achieve normal levels) Performed within days of patient registration: Serum magnesium > . mg/dL(can be achieved with replacement)\r\n* NOTE: The package insert for the study drug, romidepsin, does not require subject blood levels of potassium (K) and magnesium (Mg) to be at a certain level; therefore in this study, we will require K > . and Mg > . for eligibility, but for the rest of the treatment parameters during the course of the study we will require these electrolytes to be within normal range (WNL) Magnesium >= LLN The following assessments are required within weeks prior to the start of registration: sodium (Na), potassium (K), chloride (Cl), glucose, calcium (Ca), magnesium (Mg), and albumin; note: patients with an initial magnesium < . mmol/L (. mg/dl) may receive corrective magnesium supplementation but should continue to receive either prophylactic weekly infusion of magnesium and/or oral magnesium supplementation (e.g., magnesium oxide) at the investigators discretion Serum magnesium levels outside the laboratorys reference range Magnesium . . mg/dL Serum magnesium ? Institutional LLN Magnesium Serum magnesium >= LLN Magnesium >= LLN Serum magnesium >= LLN Magnesium (. - ULN) Serum magnesium greater than or equal to . mg/dL Subjects with initial magnesium < . mmol/liter (. mg/deciliter) may receive corrective magnesium supplementation but should continue to receive either prophylactic weekly infusion of magnesium and/or oral magnesium supplementation Serum magnesium >= LLN Serum magnesium > .; electrolyte repletion is allowed to reach these values Magnesium less than . milligram per deciliter (mg/dL) Serum magnesium >= LLN Serum magnesium >= LLN Serum magnesium must be within institutional normal limits Serum magnesium greater than the LLN and < . mg/dL or . mmol/L Normal serum electrolytes, magnesium and phosphorus on the day of therapy; correction of abnormalities is permitted Magnesium within normal limits (supplementation allowed) Magnesium >= . mg/dL Serum magnesium >= . mg/dL Participants with a calcium/magnesium intake ratio > . Magnesium below the normal range despite supplementation, or above the CTCAE grade upper limit