Arcellx, Inc is a clinical-stage biotechnology company, which provides cell therapy through the development of innovative immunotherapies for patients with cancer and other incurable diseases. The company is headquartered in Gaithersburg, Maryland and currently employs 98 full-time employees. The company went IPO on 2022-02-04. The firm is focused on the development of controllable cell therapies for the treatment of patients with cancer and other incurable diseases. The Company’s lead program is a BCMA-targeting ddCAR product candidate called CART-ddBCMA, which is being evaluated in its pivotal Phase II iMMagine-1 trial in patients with relapsed or refractory multiple myeloma (rrMM). The firm is also developing two clinical-stage ARC-SparX programs in Phase I trials; ACLX-001, which targets BCMA in rrMM, and ACLX-002, which targets CD123 in relapsed or refractory acute myeloid leukemia (AML) and high-risk myelodysplastic syndrome (MDS). Outside of multiple myeloma (MM), the Company advances its wholly owned portfolio of clinical-stage, ACLX-002, and preclinical pipeline programs incorporating its D-Domain technology.