IASO Bio's RD140 CAR-T Hits 88.9% Response Rate in Myeloma Trial
Shanghai – September 25, 2026 -- IASO Biotechnology reported an 88.9% objective response rate for its dual-targeted CAR-T therapy RD140 in a first-in-human Phase 1 trial of nine heavily pretreated multiple myeloma and plasma cell leukemia patients, with the response rate reaching 100% in the higher-dose cohort.
RD140 achieves 88.9% MRD negativity in high-risk relapsed patients
The investigator-initiated trial (NCT06655519), led by Professor Jin Lu of Peking University People's Hospital, enrolled patients who had failed at least three prior lines of therapy, including two who had previously received BCMA-targeted treatment. All nine patients were triple-class exposed, and six were penta-exposed. As of the May 6, 2026 data cutoff, with a median follow-up of 6.05 months, 88.9% of patients achieved MRD negativity at the 10−5 threshold, with six reaching this benchmark as early as day 28. Median progression-free survival has not been reached.