Efficacy and Safety Evaluation of U01(ssCART-19) in B-Cell Lymphoma

This study is testing a new CAR-T cell therapy called U01 (ssCART-19) — a treatment that reprograms your own immune cells to find and destroy B-cell lymphoma — in people whose cancer has come back or stopped responding to prior treatments. **You may be eligible if...** - You are 2–75 years old (guardians must co-sign for anyone under 18) - You have been diagnosed with B-cell lymphoma - Your cancer did not respond to first-line therapy or came back within 12 months, OR you have relapsed or refractory B-cell lymphoma after second-line therapy **You may NOT be eligible if...** - You have not tried prior standard treatments first - You have a different type of lymphoma that is not B-cell - You do not meet the health and performance requirements - You are pregnant Talk to your doctor to see if this trial is right for you.