Jacksonville, Fla., Scottsdale/Phoenix, Ariz.
The purose of this study is to evaluate the effiectiveness, safety, and pharmacokinetics of tirabrutinib monotherapy in patients with relapsed or refractory Primary Central Nervous System Lymphoma PCNSL (Part A), and tirabrutinib in combination with one of two different high dose methotrexate based regimens (methotrexate/ temozolimide/rituximab or rituximab/methotrexate/procarbazine/ vincristine) as first line therapy in patients with newly diagnosed, treatment naïve PCNSL (Part B). Mayo Clinic is only participatin gin Part B, and only in the MTR regimen.