RecruitingPhase 3Radiation therapyComparison Between Local Radiotherapy Alone or Combined With Obinutuzumab in Early Stage Follicular Lymphoma: the GAZEBO Trial From the Fondazione Italiana LinfomiProspective, multicenter, open label, phase III randomized clinical trial in previously untreated Follicular Lymphoma in early stage. Patients will be randomized to receive Radiotherapy or Radiotherapy plus Obinutuzumab.