Targeted Therapy Directed by Genetic Testing in Treating Patients With Advanced Refractory Solid Tumors, Lymphomas, or Multiple Myeloma (The MATCH Screening Trial)

S1417CD Financial Impact Assessment Tool in Patients With Metastatic Colorectal Cancer

Aspirin in Preventing Recurrence of Cancer in Patients With HER2 Negative Stage II-III Breast Cancer After Chemotherapy, Surgery, and/or Radiation Therapy

Combination Chemotherapy, Bevacizumab, and/or Atezolizumab in Treating Patients With Deficient DNA Mismatch Repair Metastatic Colorectal Cancer

Breast Cancer WEight Loss Study (BWEL Study)

S1207 Hormone Therapy With or Without Everolimus in Treating Patients With Breast Cancer

S0820, Adenoma and Second Primary Prevention Trial

Doxepin and a Topical Rinse in the Treatment of Acute Oral Mucositis Pain in Patients Receiving Radiotherapy With or Without Chemotherapy