Summary
This study will have two parts.
The aim of Part 1 is to see how safe and tolerable Odronextamab is when used in combination with Lenalidomide and to determine the dose of Odronextamab to be used in Part 2 of this study.
The aim of Part 2 is to assess how the combination of Odronextamab and Lenalidomide works compared to the combination of Rituximab and Lenalidomide which is the current standard of care treatment for follicular lymphoma and marginal zone lymphoma.