Among the avalanche of abstracts for the upcoming American Society of Hematology (ASH) annual conference released early on Nov. 2 were data from Arcellx Inc.’s phase I study of CART-ddBCMA in patients with relapsed or refractory multiple myeloma. The results caught investors’ attention as the company’s stock (NASDAQ:ACLX) jumped 18.5% upward to close at $40.77 per share.