On March 19, 2025 Imugene Limited (ASX:IMU), a clinical-stage immuno-oncology company, reported that the US Food and Drug Administration (FDA) has granted Fast Track Designation to its allogeneic CAR T-cell therapy, azer-cel (azercabtagene zapreleucel), for the treatment of relapsed or refractory diffuse large B-cell lymphoma (DLBCL) (Press release, Imugene, MAR 19, 2025, https://mcusercontent.com/e38c43331936a9627acb6427c/files/016deafa-b80d-5bf6-262c-0e50c1d6128c/Azer_cel_Granted_FDA_Fast_Track_Designation_in_Blood_Cancer.pdf [SID1234651235]).
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The FDA’s Fast Track Designation is designed to facilitate the development and expedite the review of drugs that address serious or life-threatening conditions and meet an unmet medical need. Benefits of this designation include more frequent meetings with the FDA to discuss development plans, the option for rolling review of regulatory submissions, and potential eligibility for Accelerated Approval and Priority Review upon meeting relevant criteria.
Azer-cel is an off-the-shelf, CD19-directed CAR T-cell therapy engineered to overcome the logistical challenges of autologous CAR T therapies, such as prolonged manufacturing times and limited patient access. By leveraging pre-manufactured donor T-cells, azer-cel allows for rapid treatment delivery. Clinical data from the ongoing Phase 1b trial has demonstrated significant promise to date, particularly in patients who failed multiple prior therapies including autologous CAR T.
The therapy incorporates a novel combination of lymphodepletion chemotherapy and interleukin-2 (IL-2) to enhance CAR T persistence and efficacy. Azer-cel has shown a manageable safety profile, with no instances of immune effector cell-associated neurotoxicity syndrome (ICANS) observed in key patient cohorts.
Leslie Chong, Managing Director and CEO of Imugene, commented: "Receiving FDA Fast Track Designation is a testament to the transformative potential of azer-cel for patients battling relapsed or refractory DLBCL. We are committed to working closely with the FDA to bring this important therapy to patients as efficiently as possible."
DLBCL is the most common and aggressive form of non-Hodgkin’s lymphoma, with a significant portion of patients experiencing relapse or resistance to standard treatments. Azer-cel addresses this critical unmet need by offering a novel therapeutic approach for this challenging blood cancer.