The participants of this study will have relapsed/refractory follicular lymphoma. Follicular lymphoma is a type of blood cancer. It is referred to as ‘relapsed’ when the disease has come back after treatment and ‘refractory’ when treatment no longer works. Stage 1 of this trial will study the safety and the level that adverse effects of
The purpose of this research study is to learn about the effectiveness and safety of the study drug, tazemetostat, in adults with relapsed/refractory follicular lymphoma whose tumours do not have an “EZH2” genetic mutation. Follicular lymphoma is a blood cancer. It affects white blood cells called lymphocytes. White blood cells normally help to fight infections,