On January 21, 2026 Arcellx, Inc. (NASDAQ: ACLX), a biotechnology company reimagining cell therapy through the development of innovative immunotherapies for patients with cancer and other incurable diseases, ireported both its scientific foundation for its D-Domain platform technology and commercial preparedness for anito-cel for the potential treatment of multiple myeloma with three presentations at the 2026 Tandem Meetings. One presentation reinforces anito-cel’s unique ability to transiently engage BCMA, potentially resulting in tumor cell clearance without prolonged inflammation and providing a mechanistic rationale for the clinically differentiated efficacy and safety profile observed with anito-cel for multiple myeloma. Additionally, two new research studies are being presented, one on health economics and one on treatment sequencing outcomes. The meetings will be held February 4-7, 2026, at the Salt Palace Convention Center in Salt Lake City, Utah. Anito-cel is partnered with Kite, a Gilead Company.
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Tandem Presentation Details
Title and ID: Anito-cel’s D-Domain Binder Has a Fast Off-Rate and Contributes to Its Differentiated Pharmacology Profile in Multiple Myeloma (abstract ID: 28119)
Speaker: Kevin C. Hart, PhD
Session: Engineered Immune Cells (CAR-T, NK, TCR): Basic/Preclinical – Antigen Finding, Safety
Session Date: Thursday, February 5, 2026
Session Time: 6:30 – 8:00 p.m. MT
Location: Hall AB
Title and ID: Impact of Treatment Sequencing with CAR T-cell Therapies and Bispecific Antibodies on Long-Term Survival in 4L+ RRMM in the U.S.: A Simulation Model (abstract ID: 27320)
Speaker: Jodi Lipof, MD
Session: Engineered Immune cells – clinical (toxicity, practice, economics, correlative, autoimmunity, malignant, and non-malignant indications)
Session Date: Thursday, February 5, 2026
Session Time: 6:30 – 8:00 p.m. MT
Location: Hall AB
Title and ID: Visualizing Geographic Variation and Systemic Inequities of Disease Burden and CAR T-cell Therapy Access in Multiple Myeloma in the U.S. (abstract ID: 27927)
Speaker: Brandon Blue, MD
Session: Health Services and Barriers to Access
Session Date: Thursday, February 5, 2026
Session Time: 6:30 – 8:00 p.m. MT
Location: Hall AB
About Multiple Myeloma
Multiple Myeloma (MM) is a type of hematological cancer in which diseased plasma cells proliferate and accumulate in the bone marrow, crowding out healthy blood cells and causing bone lesions, loss of bone density, and bone fractures. These abnormal plasma cells also produce excessive quantities of an abnormal immunoglobulin fragment, called a myeloma protein (M protein), causing kidney damage and impairing the patient’s immune function. MM is the third most common hematological malignancy in the United States and Europe, representing approximately 10% of all hematological cancer cases and 20% of deaths due to hematological malignancies. The median age of patients at diagnosis is 69 years with one-third of patients diagnosed at an age of at least 75 years. Because MM tends to afflict patients at an advanced stage of life, patients often have multiple co-morbidities and toxicities that can quickly escalate and become life-endangering.
About Anitocabtagene Autoleucel (anito-cel)
Anitocabtagene autoleucel (anito-cel, previously CART-ddBCMA) is the first BCMA-directed CAR T-cell therapy to be investigated in multiple myeloma that utilizes Arcellx’s novel and compact binder known as the D-Domain. The small, stable D-Domain binder enables high CAR expression without tonic signaling and is designed to quickly release from the BCMA target. This combination may allow for the effective elimination of multiple myeloma cells without severe immunotoxicity. Anito-cel has been granted Fast Track, Orphan Drug, and Regenerative Medicine Advanced Therapy Designations by the U.S. Food and Drug Administration.
(Press release, Arcellx, JAN 21, 2026, View Source [SID1234662149])