Phase 2 Trial of Pembrolizumab in Relapsed and Refractory Gray-Zone Lymphoma (GZL), Primary Central Nervous System Lymphoma (PCNSL), and Other Extranodal Diffuse Large B-cell Lymphomas

Detailed Summary

Background: B-cell lymphoma is a cancer of white blood cells that are found in lymph nodes. Some kinds of these cancers, such as gray-zone and extra-nodal, are rare and often aggressive. They are usually resistant to current treatments. Researchers want to see if a drug called pembrolizumab may treat these types of lymphoma. Objective: To collect data to see if it may be effective to give pembrolizumab to people with certain types of rare, aggressive B-cell lymphomas. Eligibility: People ages 18 and older who have a B-cell lymphoma, including gray-zone lymphoma or extra-nodal lymphoma Design: Participants will be screened with: Medical history Physical exam Blood and urine tests Scans. They will lie in a machine that takes images. A tissue sample from a previous procedure will be tested. The study will be done in 21-day cycles. During the study, participants: Will repeat the screening tests. Will get the study drug as an infusion into a vein over about 30 minutes. Will have a cheek swab and/or saliva sample collected. May have a bone marrow aspiration. A needle will be put into the hipbone, and a small amount of bone marrow will be taken out. May have a lumbar puncture. If cerebrospinal fluid is collected, researchers will study it. May have an eye exam. May provide tissue samples. May have tumor samples taken. Participants will have a visit about 30 days after the last dose of the study drug. They will then have 4 visits in year 1, 2 visits a year in years 2-5, and once each year thereafter. They will also be contacted by phone.

Study Details

Timeline

Interventions