NCT01787409 2025-12-30Cholecalciferol in Improving Survival in Patients With Newly Diagnosed Cancer With Vitamin D InsufficiencyMayo ClinicPhase NA Active not recruiting565 enrolled
NCT02553447 2025-12-15Cholecalciferol in Newly Diagnosed Non-Hodgkin Lymphoma or Chronic Lymphocytic Leukemia With Vitamin D DeficiencyUniversity of NebraskaPhase NA Completed197 enrolled