We conducted a retrospective, single-center study including 27 patients with RRMM who were treated with bsAbs (teclistamab, elranatamab, or talquetamab) between June 2022 and September 2025 and for whom genetic material was available before bsAB treatment. These findings suggest that PPM1D mutations may represent a promising biomarker in patients with RRMM treated with bsAbs. Larger, prospective studies are warranted to validate and further elucidate these observations.
Patients receiving immunoglobulin replacement therapy had a 2.01 lower risk of infections Grade 3 or 4 and a 6.14 lower risk of death. Our findings demonstrate the efficacy of teclistamab in a heavily diseased and pretreated cohort with AL amyloidosis and highlight the necessity of a concomitant immunoglobulin replacement therapy.
P1, N=8, Terminated, Second Affiliated Hospital of Xi'an Jiaotong University | N=34 --> 8 | Not yet recruiting --> Terminated; Achieved the proof of concept