Patient Observation

Testing Continuous Versus Intermittent Treatment With the Study Drug Zanubrutinib for Older Patients With Previously Untreated Mantle Cell Lymphoma

Nivolumab After Combined Modality Therapy in Treating Patients With High Risk Stage II-IIIB Anal Cancer

Medication Combinations of Dasatinib, Quercetin, Fisetin, Temozolomide, LMP744, and Autologous TLPO Vaccine for the Treatment of Previously Treated Glioma With Residual Disease

Immunotherapy After Surgery for People Who Have No Remaining Cancer Cells After Standard Treatment for Early-Stage Non-Small Cell Lung Cancer, INSIGHT Trial

Acalabrutinib With or Without Obinutuzumab in Treating Patients With Early-Stage Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma

Testing the Impact of an Anti-Cancer Drug, Atezolizumab, After Surgery to Prevent Early Stage Non-small Cell Lung Cancer From Returning, AASI-NSCLC Trial

Evaluating the Addition of the Immunotherapy Drug Atezolizumab to Standard Chemotherapy Treatment for Advanced or Metastatic Neuroendocrine Carcinomas That Originate Outside the Lung

Testing Immunotherapy Versus Observation in Patients With HPV Throat Cancer

A Study on How to Safely Guide Surgery for Melanoma and Similar Skin Tumors in Children Using Pathology and Genetic Information

Using Biomarkers to Help Guide Safe Immunotherapy Discontinuation in Patients With Unresectable Stage IIIB-IV Melanoma, The PET-Stop Trial

Cisplatin and Combination Chemotherapy in Treating Children and Young Adults With Hepatoblastoma or Liver Cancer After Surgery

Testing MK-3475 (Pembrolizumab) as Adjuvant Therapy for Triple Receptor-Negative Breast Cancer

Nivolumab in Treating Patients With Localized Kidney Cancer Undergoing Nephrectomy

Comparing Radiation After Surgery to Observation After Surgery in Patients With Clinical Low-Risk, Molecular High-Risk Meningioma, and Evaluating Observation After Surgery in Patients With Clinical and Molecular Low-Risk Meningioma

Testing a Standardized Approach to Surgery and Chemotherapy for Type I Pleuropulmonary Blastoma or the Addition of an Anti-cancer Drug, Topotecan, to the Usual Treatment for Types II and III Pleuropulmonary Blastoma

A Study Using Risk Factors to Determine Treatment for Children With Favorable Histology Wilms Tumors (FHWT)

Comparing Radiation Therapy to Usual Treatment for Patients With High-Risk Bone Metastases That Are Not Causing Pain, PREEMPT Trial

White Button Mushroom Sup for the Reduction of PSA in Pts With Biochemically Rec or Therapy Naive Fav Risk Prostate CA

Low Dose Aspirin to Lower Inflammation and Prevent Endometrial Cancer in Postmenopausal Women With Non-atrophic Endometrial Changes and Pain

Pembrolizumab vs. Observation in People With Triple-negative Breast Cancer Who Had a Pathologic Complete Response After Chemotherapy Plus Pembrolizumab