National Cancer Institute (NCI)
This phase III trial compares the effectiveness of rituximab to mosunetuzumab in treating patients with follicular lymphoma with a low tumor burden. Rituximab is a monoclonal antibody. It binds to a protein called CD20, which is found on B cells (a type of white blood cell) and some types of cancer cells. This may help the immune system kill cancer cells. Mosunetuzumab is a monoclonal antibody that may interfere with the ability of cancer cells to grow and spread. It is not yet known if giving rituximab or mosunetuzumab works better in treating patients with follicular lymphoma with a low tumor burden.
PRIMARY OBJECTIVES: I. To compare the 3-year milestone progression free survival (PFS) probabilities in participants with previously untreated, low tumor burden follicular lymphoma randomized to the rituximab arm versus the mosunetuzumab arm. II. To compare progression free survival (PFS) in participants with previously untreated, low tumor burden follicular lymphoma randomized to the rituximab arm versus the mosunetuzumab arm. SECONDARY OBJECTIVES: I. To compare overall survival (OS) between participants randomized to rituximab versus mosunetuzumab. II. To compare overall response rates…
Inclusion Criteria: * Participants must have a histologically confirmed diagnosis of classic follicular lymphoma (cFL). cFL was previously categorized as grade 1-3A per World Health Organization (WHO)-HAEM4R, but grading of classic follicular lymphoma (FL) is no longer mandatory. * NOTE: Participants with follicular lymphoma with uncommon features (uFL) are eligible, including FL with diffuse growth pattern (dFL). Diagnosis is as per local pathology. Lymphoma fluorescence in situ hybridization (FISH) is not required. Molecular testing is not required. * Participants must not have follicula…
Undergo blood sample collection
Undergo CT and/or PET/CT scan
Given SC
Undergo PET/CT scan
Given IV
Given SC