Hold Lifted on Arcellx Myeloma Drug
FDA has lifted a partial clinical hold against an Arcellx IND for CART-ddBCMA, an investigational drug for treating patients with relapsed or refractory multiple myeloma. The hold was ordered in June following a recent patient death. At the time, the company said it believed “limitations on bridging therapy are a contributing factor and is working with FDA to amend the protocol to expand options for patients that are consistent with current clinical practice,” adding that other potential improvements to the study were being evaluated.
In announcing the hold’s removal, Arcellx says it updated the trial protocol, and FDA has allowed expanded bridging therapies, “which better aligns our protocol with current clinical practice. As a key step to enhancing protocol adherence related to the prevention and management of the risk of adverse events, we retrained clinical sites.”
Arcellx describes the therapy as a BCMA-specific CAR-modified T-cell therapy utilizing the company’s novel BCMA-targeting binding domain. It says it will present data from the Phase 1 study later this year as well as preliminary data from the iMMagine-1 study in the second half of 2024.