IASO Biotechnology

FUCASO Hits 95.9% Response Rate in China Real-World Myeloma Study

Shanghai – September 26, 2026 -- IASO Biotechnology's CAR-T therapy FUCASO achieved a 95.9% objective response rate and 77.2% complete/stringent complete response rate in a real-world study of 281 heavily pretreated Chinese patients with relapsed or refractory plasma cell neoplasms, data presented at the 2026 International Myeloma Society Annual Meeting show.

Real-world cohort skews higher-risk than pivotal trial population

The multicenter study tracked patients treated since FUCASO's June 2023 launch across China. Median age was 61 years, with 18.7% aged 70 or older, and patients had received a median of four prior therapy lines, up to 12. Prior anti-CD38 exposure reached 84.0%, 27.4% were penta-exposed, and 46.9% had undergone autologous stem cell transplantation. High-risk cytogenetic abnormalities affected 82.4% of patients, 50.5% were ISS stage III, 7.8% had plasma cell leukemia, and 47.0% presented extramedullary disease.

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.