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)