Description
                    
                    NCT049747319  Brief Summary:  This study will evaluate the efficacy, safety, and pharmacokinetics of tirabrutinib monotherapy in patients with relapsed or refractory PCNSL (Part A), and tirabrutinib in combination with one of two different high dose methotrexate based regimens (methotrexate/ temozolomide/rituximab or rituximab/methotrexate/procarbazine/ vincristine) as first line therapy in patients with newly diagnosed, treatment naïve PCNSL (Part B)