Richter's Transformation

This is a phase 1, open-label, dose-finding study to assess the safety, feasibility, pharmacokinetics and preliminary efficacy of autologous base edited anti-CD45 CAR T cells (referred to as "CART-45 cells") following an autologous transplant of CD45 base edited hematopoietic stem and progenitor cells (referred to as "CD45BE-HSPC") in patients with relapsed or refractory hematologic malignancies.

This study aims to explore the recommended phase 2 dose and evaluate the safety, tolerability and preliminary antitumor activity of BGB-16673 monotherapy at the recommended Phase 2 dose for the selected B-cell malignancy expansion cohorts

Investigate the efficacy and safety of ONO-4538 in patients with Richter's transformation

This research is being done to evaluate Glofitamab by itself or in combination with Polatuzumab Vedotin, Pirtobrutinib, or Atezolizumab as possible treatments for Chronic Lymphocytic Leukemia (CLL) that has transformed into Richter's Transformation (RT). The names of the study drugs involved in this research study are: * Glofitamab (a T-cell bispecific humanized monoclonal antibody) * Obinutuzumab (a humanized glycoengineered type II anti-CD20 monoclonal antibody) * Polatuzumab vedotin (an antibody-drug conjugate) * Pirtobrutinib (a selective inhibitor of BTK) * Atezolizumab (a humanized immunoglobulin monoclonal antibody) * Tocilizumab (a recombinant, humanized, anti-human monoclonal antibody)

Long term follow-up of patients with chronic lymphocytic leukemia (CLL), B-prolymphocytic leukemia (B-PLL), T-cell prolymphocytic leukemia (T-PLL), Small lymphocytic lymphoma (SLL), T/Natural Killer large granular lymphocyte leukemia (T or NK-LGL), Hairy cell leukemia (HCL) and Richter's transformation